Chevrolet Automatic Transmission 4L30-E Isuzu (TF4L3-WE-889AR) Service and Repair Manual

7/23/2019 Chevrolet Automatic Transmission 4L30-E Isuzu (TF4L3-WE-889AR) Service and Repair Manual

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WORKSHOP MANUAL

TF SERIES

AU TOMATIC TRAN SM ISSION4L30-E

SECTION 7A1



NOTICE

Before using this Workshop Manual to assist you in perform

vehicle service and maintenance operations, it is recommen

that you carefully read and thoroughly understand

information contained in Section 0A under the head

“GENERAL INFORMATION”.

All material contained in this Manual is based on the la

product information available at the time of publication.

All rights are reserved to make changes at any time witprior notice.



THIS MANUAL INCLUDES THE FOLLOWING SECTION

SECTION CONTENTS

00 Service Information

7A1 Automatic Transmission



SERVIC

SECTION 00

SERVICE INFORM ATION

CONTENTS

Main Data and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Standard. . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fixing Torque.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



Model 4L30-E

Engine V6 3.2L 6VD1

Automatic four speedoverdrive in 4th gear

Typelock-up clutch torque

converter

Shift control Hydraulic

Shift pattern ElectronicControl systems

Shift quality Electronic

Lock-up clutch Electronic

1st 2.856

2nd 1.618

Gear ratio 3rd 1.000

4th (O/D) 0.723

Reverse 2.000

Gear set Noiseless, high torque capabili

Name ATF DEXRON®-IIIOil used

Q’ty lit (Imp qt / US qt) 8.6 (7.6 / 9.1)

Torque converter 2200 ± 150

Reverse clutch RC 4

Second clutch C2 6

Third clutch C3 6

Brake band Double wrap

Fourth clutch C4 2Overrun clutch OC 1

Overdrive OFW 10

Principal PFW 26

Input sun gear 30

00 – 2 SERVICE INFORMATION

MAIN DATA AND SPECIFICATION

AUTOMATIC TRANSMISSION



SERVIC

SERVICE STANDARD


ITEMS SERVICE STANDARD

PLANETARY CARRIERPlanetary Carrier Pinion End Play mm (in) 0.13 – 0.89 (0.005 – 0.035

SECOND CLUTCHSecond Clutch End Play mm (in) 0.36 – 0.79 (0.014 – 0.03

OVERDRIVE CLUTCHOverdrive Clutch End Play mm (in) 0.1 – 0.8 (0.004 – 0.031)

MAIN CASEMain Case End Play mm (in) 0.36 – 0.80 (0.014 – 0.03

OVERDRIVE CARRIER

Overdrive Carrier Pinion End Play mm (in) 0.24 – 0.64 (0.0094 – 0.02




CHECKING TRANSMISSIONCONDITION

Checking fluid level and coregular intervals will proviinformation about the tranmay be used to correct a cdetected early, could resu

repairs.IMPORTANT:

When new, automatic trancolor. As the vehicle is drivwill begin to look darker ineventually appear light broA DARK brown color with excessive fluid deterioratio

fluid change.

FLUID LEVEL

When adding or changingIII.Refer to the Maintenance for maintenance informati

CAUTION:

DO NOT CHECK FLUID LEVEL UCONDITIONS:• Immediately after driving a

speeds.• In heavy city traffic during– If vehicle is towing a traile

If the vehicle has been operateshut the engine off and allow ththirty (30) minutes. After the co

SERVICING


CAUTION: Do not ove

Overfilling will cause foaminshifting and possible damag



SERVIC

1. Parking the vehicle on leveparking brake firmly.

2. Check fluid level with engi

NOTE:Be sure that transmission fluid (86°F).

3. Move through all gear ran

4. Move the selector lever to

5. Let engine idle for 3 minut

screw.6. Let engine idle until a fluid

(90°F) and 57°C (135°F) is r

7. Add transmission fluid untoverfill screw-opening, the

Overfill Screw Torque

38 (3

NOTE:Transmission fluid temperservice tool.

Minimum fluid level → 57°Maximum fluid level→ 32

CAUTION:

Do not open overfill screw with

Overfill screw

Drain screw

242RT001




FLUID CONDITION

FLUID CONDITION

NORMAL* CO

COLORRED

BROWNNON-TRANSPA

OR LIGHT BROWN /PINK

DRAINNO YES YES

REQUIRED?

CONTAMI- NONE

NATION

Very small amountof foreign materialin bottom of pan

CORRECT

LEVEL&CONDITION

Contamination bcoolant or othersource

– Remove both pans

– Change filter

– Flush cooler

– Add new fluid

– Check level

1. LOW LEVEL:A. Add fluid to

obtain properlevel & checkfor externalleaks.

B. Correct causeof leak.

2. HIGH LEVEL:– Remove excess

fluid

– Repair/replaceradiator coole

– Transmissionoverhaul requ

– Check for:•Damaged plaand seals•Contaminatesolenoids

– Flush cooler– Add new fluid– Check level

* Fluid should be changed according to maintenance schedule.



SERVIC

CHANGING TRANSMISSION There is no need to change thethe transmission is used under following heavy duty condition

A: Repeated short tripsB: Driving on rough roadsC: Driving on dusty roadsD: Towing a trailer

If the vehicle is used under thesfluid every 27,000 miles (45,000

1. Place a large drain pan un2. Remove the transmission

fluid.3. Tighten drain screw.

Drain Screw Torque

38 (3

4. Remove the transmission

transmission through overDEXRON®-III ATF.

5. Let engine idle until a fluid(90°F) and 57°C (135°F) is roverfill screw.

Overfill Screw Torque

38 (3

6. Add transmission fluid untoverfill screw opening.

NOTE:Transmission fluid temperservice tool.

Overfill screw

Drain screw

242RT001




FIXING TORQUE


6

See page 7A1-153

54(5.5/40)

55(5.6/41)

50(5.1/3

41(4.2/30)

8(80kg•cm/69 lb in)



SERVIC

FIXING TORQUE (CONT.)


20(

13



00– 10 SERVICE INFORMATION

FIXING TORQUE (CONT.)


20 (2.0/15)

3 (30kg·cm/26 Ib·in)

39 (4.0/29)

10 (100kg·cm/87 Ib·in)

22 (2.2/16)



SERVIC

SPECIAL TOOLS


ILLUSTRATION PARTS NO. PARTS

5-8840-0501-0Spring compressor (Fo

(J -23075)

5-8840-2258-0 Third clutch retaining r

(J -38450)

5-8840-2259-0 Third clutch spring com

(J -23075-12) (Use with 5-8840-0501-0

5-8840-2260-0 Third clutch piston inst

(J -23084)

5-8840-0195-0Spring compressor

(J -23327)

5-8840-2261-0Second clutch piston in

(J -23080-A)

5-8840-2262-0Selective washer gagin(J -23085-A)

5-8840-2263-0 Fourth clutch spring co

(J -23327-90) (Use with 5-8840-0195-0



00– 12 SERVICE INFORMATION

SPECIAL TOOLS (CONT.)



5-8840-2266-0 Slide hammer adapter

(J -38584) (Use with 5-8840-0019-

5-8840-2267-0Fourth clutch piston fitt

(J -38554)

5-8840-2268-0Guide pins: adapter cas

(J -38588)

5-8840-2269-0Overrun clutch piston s

(J -38555)

5-8840-2270-0 Guide pins: gasket and

(J -3387-2) body

5-8840-2271-0 Turbine shaft puller

(J -25022) (Use with 5-8840-0618-

5-8840-0196-0 Oil seal remover (Use w

(J -23129) (J -23907) and 5-8840-22

5-8840-2272-0Oil pump centering too

(J -38557)



SERVIC

SPECIAL TOOLS (CONT.)



5-8840-2274-0Servo piston fitter

(J -38428)

5-8840-2275-0Overrun clutch spring c

(J -23327-91)

5-8840-2277-13/4 Accumulator piston

(J -38559-A)

5-8840-2278-0Holding fixture

(J -8763-02)

5-8840-2282-0A/T extension housing

(J -36797)

5-8840-0003-0Holding fixture base

(J -3289-20)

5-8840-0004-0Pressure gauge(J -21867)

5-8840-0618-0 End play fixture

(J -24773-1) (Use with 5-8840-2271-0



MEMO



AUTOMATIC TRANSM

SECTION 7A1

AUTOMATIC TRANSM ISSION (4

CAUTIONWhen fasteners are removed, always reinstallthem at the same location from which theywere removed. If a fastener needs to be

replaced, use the correct part number fastenerfor that application. If the correct part numberfastener is not available, a fastener of equalsize and strength (or stronger) may be used.

Fasteners that are norequiring thread lockcalled out. The correc

used when installing torque. If the above cfollowed, parts or sysresult.

CONTENTS

General Description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electronic Control Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Transmission Control Module (TCM) . . . . . . . . . . . . . . . . . . . . . . . .Control System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functions of Input/Output Components . . . . . . . . . . . . . . . . . . . . .

Range Reference Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Normal Operation of 4L30-E Transmission. . . . . . . . . . . . . . . . . . . .

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Driver Information . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Diagnosis Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preliminary Inspection Chart



7A1–2 AUTOMATIC TRANSMISSION (4L30-E)

Lock-up Speed Chart . .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electronic Diagnosis .. .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Check Trans Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Diagnostic Check. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

”Check Trans“ Check . .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flashing Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TECH2 Connection .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clear DTC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTC Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

F0 : Data List Quick Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chart 1 : Diagnosis Connector and Voltage Supply Test . . . . . . . .

Chart 2 : Diagnostic Trouble Code (DTC). . . . . . . . . . . . . . . . . . . . .

Chart 3 : Transmission and TCM Identification. . . . . . . . . . . . . . . .

Chart 5 : F5 : Actuator Test Quick Check. . . . . . . . . . . . . . . . . . . . .

Without DTC Set. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TCM Precautions.. . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Intermittent Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TCM MEM-CAL Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wiring Diagram. . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connector Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connector List. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selector Lever .. . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mode Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Transmission (With Transfer Case) . . . . . . . . . . . . . . . . . . . . . . . . . .

Solenoid Valve (Main Case Valve Body). . . . . . . . . . . . . . . . . . . . . .

Solenoid Valve (Adapter Case Valve Body) . . . . . . . . . . . . . . . . . . .



AUTOMATIC TRANSM

Sprag Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Second Clutch .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Accumulator Piston. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Reverse Clutch Piston and Center Support. . . . . . . . . . . . . . . . . . . . . .

Overrun Clutch and Turbine Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4L30-E Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hydraulic Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .




GENERAL DESCRIPTION

The 4L30-E is a 4-speed fully-automatic transmission.It uses a microcomputer as a control unit to judgerunning conditions including throttle opening rateand vehicle speed, then it sets the shifting point inthe optimum timing so that best driving perform-ance can be achieved.In addition, the built-in shift mode select functioncan select two shift modes according to the driver’spreference.

• Normal mode –Normal shift pattern.

• Power mode has a delayed upshift for whenmore powerful acceleration is required.

Also, the built-in fail-safe function (”backup mode“)assures driving performance even if the vehiclespeed sensor, throttle signal or any solenoid fails.Further, the self-diagnostic function conductsdiagnosis in a short time when the control systemfails, thus improving serviceability.

The major features of 4L30-E are as follows:• A compact structure consisting of 2 sets of

planetary gears and flat torque converter.• Electronic control selects the optimum shift

mode according to the driving conditions.• Electronic control maintains the optimum

hydraulic pressure for clutch, band brake aswell as transmission so that shift feeling isimproved.

• Two sets of planetary gears reduce friction of power train.Also, a lock-up mechanism in the torqueconverter reduces fuel consumption.

• Wide gear ratio and high torque rate of torqueconverter provide excellent starting perform-ance.



AUTOMATIC TRANSM

CONSTRUCTION

8

9

5

6

7

1 1

1 0

2

3

4

1




ELECTRONIC CONTROL DIAGRAM

D R I V E R ' S I N P U T

M A N U A L S E L E C T O R

K I C K D O W N S

W I T C H

B R A K E S W I T C H

P U S H B U T T O

N F O R

N O R M A L / P O W E R

D R I V E M O D E

V E H I C L E S P E E D

S E N S O R

A T F T E M P E

R A T U R E

S E N S O R

5 S O L E N O I D

V A L V E S

T R A N S M I S S I O

N

C O N T R O L

M O D U L E

( T C M )

C O M P E N S A T I O N F O R

E N G I N E L O A D

A I R C O N D I T I O N I N G

S W I T C H

T I C

N S O R

P



AUTOMATIC TRANSM

TRANSMISSION CONTROL MODULE (TCM)

ENGINE A7

TPS

4L30-E

Ac

Ad

Aa

Mc

MdMa

Mb

Ab

Ac

X2

X1

Xa

Xb

Xc

XgIGN

A8 A4 C1 D1

IGN BATT GND

D14

C5

C6

D7

D6

D5

D4

B3

C14

A12

B12

B11

C7

C12

A2

A3

A9

C15

C16

TCM

D9

D8

B8

B5

C10

B9

OUT

MODE SW A

MODE SW B

MODE SW C

MODE SW G

OIL TEMP

OUTPUT SPEED HI

OUTPUT SPEED LO

TCC HI

SHIFT SOL. HI

SHIFT SOL. ASHIFT SOL. B

BAND APPLY SOL.

FORCE MOTOR HI

FORCE MOTOR LO

BRAKE SW

A/C REQUEST

POWER SW

KICKDOWN SW

CHECK TRANS LAMP

POWER LAMP

+

–

D16DIAG SW

CRANK

ANGLESENSOR

ECMD12

ENGINESPEED

SERIAL DATA

TORQUEMANAGEMENT

ENGINECOOLANT

TEMP SW

C8




CONTROL SYSTEM DIAGRAM

AUTOMATIC TRANSMISSION ASSEMBLY

E N G I N

E

L O C K U P P

I S T O N

T O R Q U E

C O N V E R

T E R

I N P U T S H A F T

P L A N E T A R Y G

E A R

M U L T I P L A T E C

L U T C H

M U L T I P L A T E B

R A K E

B R A K E B A N D

O N E W A Y C L U

T C H

O U T P U T S

H A F T

OIL PUMP SERVO MECHANISM

CONTROL VALVE

O I L T E M P .

S E N S O R

T O R Q U E

C O N V E R T E R

C L U T C H S O L E N O I D

S H I F T S

O L E N O I D A

S H I F T S

O L E N O I D B

B A N

D A P P L Y

S O

L E N O I D

F O R C

E M O T O R

M A N U

A L V A L V E

V E H I C L E S P E E D

S E N S O R

M O D E

KICKD

BRAKE

POWE

TRANSMISSION CONTROLMODULE (TCM)

• SHIFT CONTROL

• BAND APPLY CONTROL

CRANK ANGLE SENSOR

THROTTLE POSITIONSENSOR

ENGINE COOLANT TEMPERATURE SENSOR

ECM

AUTOMATICTRANSM



AUTOMATIC TRANSM

1. SHIFT CONTROL The transmission gear is shifted according to theshift pattern selected by the driver.In shifting gears, the gear ratio is controlled by the

ON/OFF signal using the shift solenoid A and theshift solenoid B.

2. BAND APPLY CONTROL The band apply is controlled when in the 3-2downshift (engine overrun prevention) and thegarage shift (shock control). The band apply solenoid is controlled by the signalfrom the Pulse Width Modulation (PWM) to regulatethe flow of the oil.

3. TORQUE CONVERTER CLUTCH CONTROL The clutch ON/OFF is controlled by moving theconverter clutch valve through shifting TorqueConverter Clutch (TCC) solenoid using the ON/OFFsignal.

4. LINE PRESSURE CONTROL The throttle signal allows the current signal to besent to the force motor. After receiving the currentsignal, the force motor activates the pressureregulator valve to regulate the line pressure.

5. ON-BOARD DIAGNOSTIC SYSTEMSeveral malfunction displays can be stored in the Transmission Control Module (TCM) memory, and

read out of it afterward. The serial data lines, which are required for thetesting of the final assembly and the coupling toother electronic modules, can be regulated by thisfunction.

6. FAIL-SAFE MECHANISMIf there is a problem in the transmission system, the TCM will go into a “backup” mode. The vehicle can

still be driven, but the drive must use the gear leverto shift gears.

7. TORQUE MANAGEMENT CONTROL The TCM sends the absolute spark advance signalto the Engine Control Module (ECM) while thet i i i b i hift d t t l th i

7A1 10 AUTOMATICTRANSMISSION (4L30 E)




SHIFT MODE CONTROL

1 Mode type

Mode type Select lever position

Normal drive mode (NOR) Entire range (excluding “R”)

Power drive mode (PWR) Entire range (excluding “R”)

2 Mode selection

SWITCH (SW) LAMP

Mode type PWR/NOR. SW POWER DRIVE LAM

Normal drive mode (NOR) OFF OFF

Power drive mode (PWR) ON ON

3 Comparison of mode

(1) The normal drive mode is set at the normal shift points.(2) The shift points of the power drive mode are shifted to the higher speed

normal drive mode.

Shift diagram

2 33

4

1

2

2

1 2

3

43

N: Normal drive mode

P: Power drive mode

Amount of

throttle

opening

Speed mph(km/h)

N P P

P

N

N

AUTOMATIC TRANSMI



AUTOMATIC TRANSMI

GEAR SHIFT CONTROL

1 Shift pattern

2 Gear position

The gear is selected by ON/OFF of two solenoids.

3 Selecting gear position

Seven types of positions can be selected according to 5 signals from the below.

SELECT LEVER RANGE SHIFT PATTERN

D (Drive) 1 2TCC 3TCC 4TCC

3 (Third) 1 2TCC 3TCC 4TCC

2 (Second) 1 2TCC 3TCC

L (First) 1 2

→←

→←

←

←

←

→←

→←

→←

→←

TCC =Torque Converter Clutch

GEARSOL A B

4 (Fourth) ✕ ✕

3 (Third) ✕

2 (Second)

1 (First) ✕

P (Park)R (Reverse) ✕

N (Neutral)

= ON

✕ = OFF

SOLENOID A ON → PR(Normally closed)

SOLENOID B OFF → PR(Normally open)

MODE SW TERMINALS

SELECT LEVER RANGE 5(D) 8(A) 7(B) 6(C) 3(G)

P (Park) • • •

R (Reverse) • • •

N (Neutral) • • •

D (Drive) • • •

3 (Third) • • • • •

7A1–12 AUTOMATICTRANSMISSION (4L30-E)




BACKUP MODE

If a major system failure occurs which could affect safety or damage the tranvehicle operation, the diagnostic system detects the fault and overrides the TC The “CHECK TRANS” light flashes to alert the driver, and the transmission mas follows:

Select lever position Gear Ratio SelectedD 4 (Fourth)Manual 3 4 (Fourth)Manual 2 3 (Third)Manual L 1 (First)

R Reverse

Shifts are firmer to prevent clutch slip and consequent wear. The fault should possible.

AUTOMATIC TRANSMI



AUTOMATIC TRANSMI

FUNCTIONS OF INPUT/OUTPUT COMPONENTS

Components Function

Speed sensor Senses rotation of output shaft and feeds the da(fixed to transmission T/M) Control Module (TCM)

Throttle Senses the extent of throttle valve opening andposition sensor (TPS) valve lever motion to open the valve and feeds (fixed to engine) Engine Control Module (ECM) also)

Brake Switch (SW) Senses whether the driver has pressed the brak(fixed to brake pedal) the information to TCM

Kick-down SW (fixed to Senses whether the driver has pushed the acce

accelerator pedal) and feeds the information to TCMMode SW (fixed to T/M) Senses the select lever position and feeds the in

Power drive SW Senses whether the driver has selected the pow(fixed to front console) information to TCM

T/M oil temp. sensor Senses the T/M oil temperature and feeds the d

Engine coolant Senses the engine cooling water temperature atemperature SW (feeds the signal from ECM)

Engine speed signal Feeds the signals monitoring engine speed to TC(feeds the signal from ECM)

Air conditioning Senses whether the air conditioner has been swinformation feeds the information to TCM

On-board diagnostic input By monitoring the Ground (GND), the location o T/M monitor lamp (“CHECK TRANS”) by flashincode

Shift solenoid A, B Selects shift point and gear position suited to th

dition on the basis of TCM output

Band apply solenoid Controls oil flow suited to the vehicle running c TCM output

Torque Converter Controls clutch engagement/disengagement suClutch solenoid running condition on the basis of TCM output

Force motor Adjusts the oil pump delivery pressure to line p(Pressure regulator vehicle running condition on the basis TCM outvalve)

Power drive mode lamp Informs the driver whether the vehicle is in pow

T/M monitor lamp Informs the driver of failure in the system. It als(“CHECK TRANS”) nosis code.

Data Link Connector (DLC) When connected with TECH2 or tester, can comfunction check etc (fed to ECM also) When TEC

SOLENOID

OU TPU T

SIGNAL

INPU T

SIGNA

L

7A1–14 AUTOMATICTRANSMISSION (4L30-E)



7A1 14 AUTOMATIC TRANSMISSION (4L30 E)

RANGE REFERENCE CHART

1-2/3-4 2-3O/DRIVE

OVERRUN FOURTH THIRD REVERSE SECONDRANGE GEAR SOL SOL

ROLLERCLUTCH CLUTCH CLUTCH CLUTCH CLUTCH

N.C. N.O.CLUTCH

(OC) (C4) (C3) (RC) (C2)

(OFW)

P-N OFF ON APPLIED

R REVERSE OFF ON LD APPLIED APPLIED

1ST OFF ON LD APPLIED

2ND ON ON LD APPLIED APPLIEDD

3RD ON OFF LD APPLIED APPLIED APPLIED

4TH OFF OFF FW APPLIED APPLIED APPLIED

1ST OFF ON LD APPLIED

3 2ND ON ON LD APPLIED APPLIED

3RD ON OFF LD APPLIED APPLIED APPLIED

1ST OFF ON LD APPLIED APPLIED2

2ND ON ON LD APPLIED APPLIED

L 1ST OFF ON LD APPLIED APPLIED

AUTOMATIC TRANSMI



NORMAL OPERATION OF 4L30-ETRANSMISSION

1. TORQUE CONVERTER CLUTCH (TCC)

APPLICATION CONDITIONS: The TCC is normally applied in 2nd, 3rd and 4thgears only when all of the following conditionsexist:– The engine coolant temperature is above 70°C

(158°F).– The brake pedal is released.– The shift pattern requests TCC apply.

Moreover, TCC is always applied in 2nd, 3rd and

4th gears when the transmission oil temperature isabove 135°C (275°F). This mode should be canceled at 125°C (257°F).

2. SPECIAL SHIFT PAT

ENGINE IS COLD:A special shift pattern is acoolant temperature is shifts for example are dopenings and will occur a




MEMO

AUTOMATIC TRANSMI



DIAGNOSIS

INTRODUCTION

The systematic trouble shooting information covered by this Section offers aapproach to diagnosing 4L30-E transmission, using information that can be oelectrical diagnosis, oil pressure checks or noise evaluation.

The key to correcting a complaint is to make use of all of the available symptomsdirect you to the cause.

When dealing with automatic transmission complaints, it is best to gather as mabefore making the decision to remove the transmission from the vehicle.Frequently, the correction of the cause of the complaint does not require removathe vehicle.




DRIVER INFORMATION

To analyze the problem fill a complete description of the owner’s complaint.Please draw a circle around the right information and complete the following example of form completed). You can draw a circle around many numbers if you

AUTOMATIC TRANSMI



Example of form completed.




GENERAL DIAGNOSIS PROCEDURE

END

Complaint

Follow

PRELIMINARY

INSPECTION

CHART

Remove trans-

mission assembly

and repair/replace

as required

Reinstall

transmission

assembly

TEST DRIVING

Flush cooler lines

Perform repair

per

SYMPTOMS CHART

Rep

comp

Can

fault

be corrected

by on-car

component

replacement?

Problem

fixed?

NO

NO

YES

YES

AUTOMATIC TRANSMI



PRELIMINARY INSPECTION CHART

Complaint

Check CHART3: TRANSMISSION AND

TCM IDENTIFICATION on page 7A1-64.

Check TRANSMISSION FLUID LEVEL

and CONDITION. See page 00-4.

Check manual linkage.

Verify engine performance. Refer to Engine Section

Road test vehicle to verify concern.

See CHECK TRANS INDICATOR

CHARTon page 7A1-25.

See page 7A1-23 for TEST DRIVING

Refer to SELECTOR LEVER in this manu

See page 7A1-145.

Note

codes

Does

symptom reflect

NORMAL

OPERATIONS

OF 4L30-E

TRANSMISSION?

(See page 7A1-15)

“CHECK TRANS”

flashing

Hydraulic

system appears

OK!

Are any DTC’s

stored in

TCM?

YES

YES

YES

NO

NO

NO

TCM: Transmission Control Module




CHECKING TRANSMISSIOAND CONDITION

Refer to “SERVICING” of the SER

(Section 00).

AUTOMATIC TRANSMI



TEST DRIVING

Some 4L30-E automatic transmission complaintsvehicles will require a test drive as a part of thediagnostic procedure. Some codes will not setunless the vehicle is moving. The purpose of thetest drive is to duplicate the customer’s complaintcondition and set a current Transmission ControlModule (TCM) trouble code. Perform this procedurebefore each 4L30-E automatic transmission repair,and again after repairs are made.

IMPORTANT:•

Duplicate the condition under which thecustomer’s complaint was observed.• Depending on the complaint, line pressure

gauge and the scan tool may be requiredduring the test drive.

• During the test drive, it is important to recordall necessary data from the areas beingmonitored, for use in diagnosis. Also listen forand note any unusual noises.

The following procedure should be used to testdrive 4L30-E automatic transmission complaintvehicles:1. Turn the ignition ON without starting the

engine. Check that the “CHECK TRANS” lampcomes on for approximately 2 to 3 secondsand then goes out and remains out.• If the lamp is flashing, GOTO CHECK TRANS

INDICATOR.• If no serial data is present, see Chart 1:DIAGNOSTIC CONNECTOR AND VOLTAGESUPPLY TEST.• If the lamp stays ON or stays OFF, GOTO“CHECK TRANS” CHECK.

2. Drive the vehicle. Duthat the transmisoperating temperaturAllow the transmissio

gear ranges, checfirmness. Duplicate condition as closely adrive.

3. If, during the test drlamp comes on, use trouble codes.

4. If, during the test drthe “CHECK TRANS”

and no trouble codevehicle with the TCMshifting the vehicle).• In Manual L, the gear.• In Manual 2, the gear.• In Manual 3 or “Dfourth gear.

If the problem stidisconnected, referHYDRAULIC DIAGNO

5. If no problem has bcheck all underhoodpower to the TCPhysically and visuaharness connectors

terminals. Inspect the




MEMO

AUTOMATIC TRANSMI



PERFORM PRELIMINARY INSPECTION FIRST!

When the “CHECK TRANS” indicator is flashing, itindicates that a problem related to the trans-mission, the Transmission Control Module (TCM),or the vehicle harness has occurred:

The system is now operating in a “BACKUP MODE”where the risk of further damaging the transmission

has been reduced. The vehicle may be shiftedmanually.

If the initial problem isswitching OFF/ON the enoperation again until the p

“CHECK TRANS” indicator flashing

Use “CHECK TRANS” CHECK in

Electronic Diagnosis section in this

manual

Refer to appropr

Electronic Diagn

manual.

NO DTC A

Read and record the Diagnostic

Trouble Codes (DTC) stored by TCM.

WARNING:

Disconnecting battery or TCM will

result in loss of stored trouble code(s).

BACKUP MODE PATTERN:

- No automatic shiftingManual shifting only

SHIFT LEVER GEPOSITION SELE

P PR RN N

MECHANICAL/HYDRAULIC DIAGNOSIS

CHECK TRANS INDICATOR CHART




MECHANICAL/HYDRAULIC DIAGNOSIS SYMPTOMS INDEX


CHART SYMPTOMS

1 NO ENGINE START IN NEUTRAL OR PARK

2 NO FORWARD GEARS IN ANY RANGE/NO REVERSE

3 NO ENGINE BRAKE IN ANY RANGE

4 POOR SHIFTING IN ALL GEARS (ALL HARSH OR ALL SOFT)

5a DELAYS IN DRIVE AND REVERSE

5b DELAYS IN REVERSE ONLY

6 DIAGNOSTIC TROUBLE CODE (DTC) 61

7 HARSH 1-2 SHIFT

8 HARSH 3-4 SHIFT

9a 3-2 DOWNSHIFT COMPLAINT

9bHARSH SHIFT WHEN SHIFTING INTO “D” OR ACCELERATINFROM STOP

9c COASTDOWN HARSH SHIFT OR CLUNK AT 3-2 DOWNSHIFT

10 INTERMITTENT 4TH TO 2ND GEAR DOWNSHIFT AT STEADY

11 ENGINE FLARE AT SHIFTING DURING TURNING ONLY

12 ENGINE FLARE DURING 1-2 OR 2-3 SHIFT

13 SHUDDER ONLY DURING TORQUE CONVERTER CLUTCH (TC

14 POSSIBLE CAUSES OF TRANSMISSION NOISE

15a POSSIBLE CAUSES OF LOW LINE PRESSURE

15b POSSIBLE CAUSES OF HIGH LINE PRESSURE

16 POSSIBLE CAUSES OF TRANSMISSION FLUID LEAKS

NOTE:Numbers with parenthesis on the following charts refer to Parts List at end of thi

AUTOMATIC TRANSMI

CHART 1: NO ENGINE START IN NEUTRAL OR PA



NO

NO NO

YES

YES

NO ENGINE START IN NEUTRAL

When shift lever moved from drive to

neutral mostly in hot condition

NO START I

(Any conditi

Replace mode switch (63)

END

Doesengine also not

start in neutral when

shift lever moved from

park to neutral?

Open

in neutralstart circuit of mode

switch (63)

Checkmode swit

(63) setting. Re

if necessa

Problem

fixed?

CHART 1: NO ENGINE START IN NEUTRAL OR PA



CHART 2:NO FORWARDGEARS IN ANY RANGE/NO



Normal line pressure

Check internal linkage:

– Manual linkage (58) not moving

manual valve (326)

Check for internal mechanical

damage:

– Turbine shaft (506) broken loose

– Overrun roller clutch (516) broken

loose

– Etc.

Use CH

OF LOW

7A1-39

Check

line pressure

CHART 2: NO FORWARD GEARS IN ANY RANGE/NO


Refer to Line Pressure chart

( in this Section.

AUTOMATIC TRANSMI

CHART 3: NO ENGINE BRAKE IN ANY RANGE



Check

line pressure

CHART 3: NO ENGINE BRAKE IN ANY RANGE


Refer to Line Pressure ch( in this Section.

Use CHA

OF LOW

7A1-39


Check for overrun clutch leaks caused

by:

– Damaged piston lip (513)

– Check ball defective (504)

Check for overrun lockout valve (705)

stuck by foreign material

Check for leaks at turbine shaft (506)

Caused by:

– Teflon seal rings damaged (508)

– Excessive wear of turbine shaft

bearing surfaces


CHART 4: POOR SHIFTING IN ALL GEARS (ALL HARSH O



CHART 4: POOR SHIFTING IN ALL GEARS (ALL HARSH O


Check

line pressure

Low line pressure

Use CHART 15a: POSSIBLE CAUSES

OF LOW LINE PRESSURE on page

7A1-39

Use CH

OF HIG

7A1-40

Check for these conditions which

could affect clutch apply time:

• Defective band apply solenoid

(323)

• Defective servo or/and

accumulator piston

• Excessive clutch piston travel

Check of possible causes of internal

leaks:

– Cut or damaged sealing ring(s)

– Damaged sealing gasket (s)– Check ball missing or out of

location in 2nd and 3rd clutch

pistons

Check for causes of burned clutch

plates or band

Refer to Line Pressu( in this Section.

AUTOMATIC TRANSMI

CHART 5a: DELAYS IN DRIVE AND REVERSE



CHART 5a: DELAYS IN DRIVE AND REVERSE


CHART 5b: DELAYS IN REVERSE ONLY


Check

line pressure


More than 3 second delay in drive and

reverse with engine off 1 hour or less

Teflon seals (508) on turbine shaftdamaged

Lo

Use CHART 1

OF LOW LIN7A1-39

NOTE: Aseconds

reverse

overnig


Check

line pressure


Normal line pressure L


CHART 6: DIAGNOSTIC TROUBLE CODE (DTC)



( )


DTC 61 sets.

Check line

pressure

Check

3rd gear in “D”

in winter mode.

Does vehicle

move?

Check for suspected conditions

modifying delays to clutch apply:

– Overrun clutch seal damaged

– Excessive overrun clutch piston

travel

– Defective 3-4 accumulator piston

– Causes of internal leaks

– Causes of burned clutch plates

Use C

OF LO

7A1-3

Refer to Line Pressure chart( in this Section. )


1st and 4th gear missing

or 2nd and 3rd gear

missing

Shift solenoid A stuck.

Replace shift solenoid A.

1st and 2nd gear missing

or 3rd and 4th gear

missing

Check appropriate shift

valve

If OK replace solenoid

DTC 61 is set in “D” range

1st gear above 3500 rpm

Check for suspected conditions

modifying delays to clutch apply:

– 2nd clutch seal damaged

– Excessive 2nd clutch piston travel

– Defective accumulator piston

– Causes of internal leaks

– Check ball missing or out of

location in 2nd clutch

– Seals cut, damaged or missing

– Gaskets defective

Causes of burned clutch plates

Check

modif

– 4th c

– Exce

– Defe

– Cau

– Cau

No engine brake in any

range(All ranges in Drive &

Reverse are OK)

YES

NO

AUTOMATIC TRANSMI

CHART 7: HARSH 1-2 SHIFT




CHART 8: HARSH 3-4 SHIFT


Check

line pressure



Check for 1-2 accumulator valve (320)

stuck by foreign material in main case

valve body

Use CHART 1

OF HIGH LIN7A1-40

Hig

Check

line pressure




stuck in adapter case valve body (401)

Use CHART 1

OF HIGH LIN

7A1-40

Hig


CHART 9a: 3-2 DOWNSHIFT COMPLAINT




CHART 9b: HARSH SHIFT WHEN SHIFTING INTO "D" OR ACCELE


CHART 9c: COASTDOWN HARSH SHIFT OR CLUNK AT 3-2


Check

line pressure



Replace band apply solenoid (PWM)

(323)

Use CHART 1

LOW LINE PR

Lo

Check

line pressure



Replace band apply solenoid (PWM)

(323)

Use CHART

HIGH LINE P

Hi

AUTOMATIC TRANSMI

CHART 10: INTERMITTENT 4TH TO 2ND GEAR DOWNSHIFT A




Check for

consistent speed

sensor reading

with TECH2

Check for wiring h

or short to ground

Check transmissio

connections

Replace transmiss

sensor

NOT OK

OK

Replace mode switch for intermittent

contact


CHART 11: ENGINE FLARE AT SHIFTING DURING TURN(USUALLY WITH WARM ENGINE)



(USUALLY WITH WARM ENGINE)



CHART 12: ENGINE FLARE DURING 1-2 OR 2-3 S

Check

line pressure

Leak at transmission oil filter, gasket,

or wrong filter type

Replace transmission oil filter and

gasket

Check for servo piston (106) leaks


stuck


Use CHART 15a

LOW LINE PRES

Low l

Refer to Line Pressur( in this Section.

AUTOMATIC TRANSMI

CHART 13: SHUDDER ONLY DURING TORQUE CONVERTER CLUT




YES

NO

Replace transmission fluid and filter (remove both pans) and flush

cooler lines.

Replace converter assembly and O-ring on turbine shaft.

Drive until whole drivetrain is at normal operating temperature.– Shudder is a SHORT BURST OF NOISE NORMALLY LESS THAN 1

SECOND IN DURATION, and can be induced by the following

maneuver:

TCC shudder is one of the most commonly misdiagnosed conditions in

an automatic transmission. The key to diagnosing TCC shudder is to

note when it happens and under what conditions. Once the TCC has

been fully applied, it is nearly impossible to make it shudder. TCC

shudder (short burst of noise normally less than 1 second) will only

occur during clutch applying. It is not a steady state condition.

From coast condition at 50 mph in “D” range (Normal mode), depress

the throttle to 1/4-1/3 throttle.

If present, shudder (short burst of noise normally less than 1 sec.) will

occur within 5 seconds together with TCC applying.(TECH2 may be used to determine the exact time of TCC applying)

Per

oth


CHART 14: POSSIBLE CAUSES OF TRANSMISSION




CAUTION:

Before checking transmission for what is believed to be transmisensure presence and positioning of insulating plugs, pads etc. Asure that noise does not come from other drivetrain components.

1. WHINE OR BUZZ:– Oil level low– Plugged or restricted oil filter– Damaged oil filter gasket

2. KNOCKING NOISE FROM FRONT OF TRANSMISSION:– Loose bolts (Converter to flex plate)– Cracked or broken flex plate– Converter damaged

3. KNOCKING NOISE WHILE DRIVING - MOSTLY ON ACCELERATION:– Transmission mount loose or broken– Cooler line mounts loose or broken– Cooler lines touching body or frame

4. KNOCKING NOISE WHEN VEHICLE IS STATIONARY:– Loose flex plate mounting bolts– Cracked or broken flex plate– Damaged converter

AUTOMATIC TRANSMI

CHART 15a: POSSIBLE CAUSES OF LOW LINE PRE



O N - V E H I C

L E S E R V I C E

T R A N S M I S S I O N R E M O V E D

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

Small

valve

body

Oil

pump

Check for loose bolts (4 & 5)

Check for pressure regulator valve (208) stuck

Check for boost valve (205) stuck

Check for intermediate oil passages to pressure regulator valve

Check for defective oil pump (9, 201, 202 & 209)

Check oil level

Check for defective throttle position sensor

Check for plugged, loose, or damaged oil filter (79)

Check for force motor plunger (404) stuck. (Remove force moto

Check for feed limit valve (412) stuck


CHART 15b: POSSIBLE CAUSES OF HIGH LINE PRE




O N - V E H I C L E S E R V I C E

T R A N S M I S S I O N R E M

O V E D

Small

valve

body

Oil

pump

OK

OK

OK

NOTE: If transmission is operating in back-up modepresent.

Check for defective throttle position sensor

OK

Check for loose bolts (4 & 5)

OK

OK

Check for pressure regulator valve (208) stuck

Check for boost valve (205) stuck

Check for force motor plunger (404) stuck

(Remove force motor. Shake and listen for rattle.)(Open circuit/Intermittent)

Check for feed limit valve (412) stuck

Check for internal leaks

– Check balls missing or out of location in valve bodies– Seals cut or missing

– Gaskets defective, etc.

AUTOMATIC TRANSMI

CHART 16: POSSIBLE CAUSES OF TRANSMISSION FLU



Before attempting to correct an oil leak, the actual source of the leak must be dethe source of the leak may be difficult to determine due to “wind flow”

transmission. The suspected area should be wiped clean of all oil before inspecting for the sourc

Oil leaks around the engine and transmission are generally carried toward the stream. In determining the source of an leak, the following two checks should be m

1. With the engine running, check for external line pressure leaks.

2. With the engine off, check for oil leaks due to the raised oil level caused by into the transmission.


POSSIBLE CAUSES OF FLUID LEAKSDUE TO SEALING MALFUNCTION



1) Electrical connector (Main case) seal2) Transmission vent (Breather)3) Speed sensor O-ring4) Extension (Adapter) lip seal5) Extension (Adapter) to main case gasket6) Oil drain plug gasket7) Oil pan gasket (Main case)8) Selector shaft seal9) Oil cooler connectors (2)

10) Oil pan gasket (Adapter case)11) Converter housing attaching bolts not correctly

67 910 8

11

12

211413

15

AUTOMATIC TRANSMI

STALL TEST

The stall test allows you to check



internal abrasion and the onewa Torque converter performance c

The stall test results together witidentify transmission componenadjustment.

Stall Test Procedure:1. Check the level of the engin

and the automatic transmisReplenish if necessary.

2. Block the wheels and set the3. Connect a tachometer to the

4. Start the engine and allow itcoolant temperature reaches

5. Hold the brake pedal down 6. Place the selector in the “D”7. Gradually push the accelera

The throttle valve will be fuNote the engine speed at whneedle stabilizes.

Stall Speed

Standar

2200 ±150

NOTE:Do not continuously run thiseconds.

8. Release the accelerator ped9. Place the selector in the “N”10. Run the engine at 1,200 rpm

This will cool the transmiss11. Repeat Steps 7-10 for the “3

ranges.

LINE PRESSURE TEST

The line pressure test checks oil

pressure regulator valve functionleakage.

Line Pressure Test Procedure:1. Check the level of the engin

and the automatic transmisl i h if i d


4. Start the engine and allow icoolant temperature reaches

5 Hold the brake pedal down



Line Pressure and Force Motor Current

5. Hold the brake pedal down 6. Place the selector in the “D7. Note the pressure gauge re

idling.8. Gradually push the accelera

throttle valve will be fully opNote the pressure gauge repedal fully depressed.

NOTE:Do not continuously run thiseconds.

9. Release the accelerator ped10. Place the selector in the “N”11. Run the engine at 1,200 rpm

This will cool the transmiss12. Repeat Steps 7 - 11 for the “

ranges.13. Install a pressure detection

case, applying recommende

(LOCTITE 242) or its equivalMake sure that thread is clelocking agents.

14. Tighten the pressure detecttorque.

Pressure Detection Plug To

9 – 14 (0.9 – 1.4

LEVER ENGINEMODE LINE PRESSURE

POSITION SPEED

NORMAL/POWER D, 3, 2, L IDLE 312 – 363 (3.2 – 3.7 / 45.2

NORMAL/POWER REVERSE IDLE 419 – 486 (4.3 – 5.0 / 60.7

NORMAL/POWER D, 3, 2, L STALL SPEED 1236 – 1320 (12.6 – 13.5 / 179

NORMAL/POWER REVERSE STALL SPEED 1634 – 1743 (16.7 – 17.8 / 236

AUTOMATIC TRANSMI

SHIFT SPEED CHART Transfer gear ratio: High: 1.000(Rear axle ratio: 4.555 )



“Normal mode”

Downshift

Upshift

Range Throttle opening1→ 2 2→ 3

(First Gear) (Second Gear) (Second Gear) (Third Ge

D Fully opened 41 ~47 (25 ~29) 84 ~ 90 (52 ~56)

(Drive) Half throttle 33 ~39 (20 ~24) 60 ~ 66 (37 ~41)

3 Fully opened 49 ~55 (30 ~34) 99 ~105 (62 ~66)

(Third) Half throttle 32 ~38 (20 ~24) 58 ~ 64 (36 ~40)

2 Fully opened 49 ~55 (30 ~34) –

(Second) Half throttle 32 ~38 (20 ~24) –

Range Throttle opening1← 2 2← 3


D Fully opened 16 ~22 (10 ~14) 62 ~ 68 (39 ~42)

(Drive)Half throttle 15 ~21 (9 ~13) 34 ~ 40 (21 ~25)

Fully closed 14 ~20 (9 ~12) 21 ~ 27 (13 ~17)

3Fully opened 39 ~45 (24 ~28) 87 ~ 93 (54 ~58)

(Third)Half throttle 15 ~21 (9 ~13) 34 ~ 40 (21 ~25)

Fully closed 13 ~19 (8 ~12) 15 ~ 21 (9 ~13)

2Fully opened 40 ~46 (25 ~29) 94 ~100 (59 ~63)

(Second)Half throttle 15 ~21 (9 ~13) 94 ~100 (59 ~63)

Fully closed 13 ~19 (8 ~12) 82 ~ 88 (51 ~55)

L– 50 ~56 (31 ~35) –

(First)


“Power mode”

Upshift



Downshift

Range Throttle opening1→ 2 2→ 3


D Fully opened 49 ~55 (30 ~34) 99 ~105 (62 ~66)

(Drive) Half throttle 37 ~43 (23 ~27) 74 ~ 80 (46 ~50)

3 Fully opened 49 ~55 (30 ~34) 99 ~105 (62 ~66)

(Thire) Half throttle 37 ~43 (23 ~27) 74 ~ 80 (46 ~50)

2 Fully opened 49 ~55 (30 ~34) –

(Second)Half throttle 37 ~43 (23 ~27) –

Range Throttle opening1← 2 2← 3


DFully opened 40 ~46 (25 ~29) 90 ~ 96 (56 ~60)

(Drive)Half throttle 21 ~27 (13 ~17) 53 ~ 59 (33 ~37)

Fully closed 13 ~19 (8 ~12) 24 ~ 30 (15 ~19)

3Fully opened 40 ~46 (25 ~29) 90 ~ 96 (56 ~60)

(Third)Half throttle 21 ~27 (13 ~17) 53 ~ 59 (33 ~37)

Fully closed 13 ~19 (8 ~12) 24 ~ 30 (15 ~19)

2Fully opened 40 ~46 (25 ~29) 94 ~100 (59 ~63)

(Second)Half throttle 21 ~27 (13 ~17) 94 ~100 (59 ~63)

Fully closed 13 ~19 (8 ~12) 82 ~ 88 (51 ~55)

L– 50 ~56 (31 ~35) –

(First)

LOCK-UP SPEED CHART Transfer gear ratio: High: 1.000(Rear axle ratio: 4.555 )

ModeLock-Up ON

2nd 3rd 4th 2nd

Normal75 ~81 55 ~61 67 ~73 70 ~76

(47 ~50 ) (34 ~38) (42 ~45) (43 ~47

D range Throttleopening9%

AUTOMATIC TRANSMI

ELECTRONIC DIAGNOSISHOW TO DIAGNOSE THE PRO1 To avoid incorrectdiagnost



1. To avoid incorrect diagnostfollowed accurately. Unless

directly to a section that cousome important information

2. The sections in CAPITALS asections that can be found in

3. The GOTO “SECTION” meagoing to the “section”.

4. The GOTHROUGH “SECTIOthe “section” and then to go

GOTHROUGH was written.

5. BASIC ELECTRIC CIRCUITS You should understand the This will include the meaninohms, and what happens inshorted wire. You should alunderstand wiring diagrams

6. IGNITION CYCLE:

When the car is driven a maa car wiring harness problecan reset the system (as on reset the computer he must(1) Stop the car and the eng(2) Turn the key ignition OF(3) Turn the key ignition ON


CHECK TRANS INDICATOR

Find CHECK TRANS indicato



A. Flashing: GOTO DIAGNOST

B. Staying on: GOTHROUGH C

C. Is never ON when the ignitiGOTHROUGH CHECK TRAN

D. Is ON during 2 to 3 secondsNormal operation. No DTC CHECK

TRANS

821LW003

AUTOMATIC TRANSMI

DIAGNOSTIC CHECK

This test determines if the tinputs or outputs connectio



inputs or outputs connectio

IF you have a scan tool TEC

NO: Use the CHECK TRANS codes GOTO FLASHING CO

YES:

1. Connect the TECH2: GOTHRCONNECTION.

2. Turn on the ignition but not

3. Push “F2” on TECH2 to see

Code (DTC):

4. IF you have DTC? YES: write down all code nuCHECK NO: the DTC can not help yo(1) GOTHROUGH “CHECK T(2) IF it is flashing and the f

and 0.2 seconds OFF, th

have a DTC stored. PleasDIAGNOSTIC CHECK anproblem GOTO TCM ME

(3) IF the CHECK TRANS indGOTO WITHOUT DTC S

Normal

Abnormal

ON

OFF

IGN Key ON

3 Sec.(Lamp check)

ON

OFF

IGN Key ON

3 Sec.(Lamp check)

0.2 Sec.

(2.5 Hz)

3.2 Sec.

0.2 Sec.


“CHECK TRANS” CHECK

1. CASE it is ON during 2 to 3 when the engine is cranked



when the engine is crankedindicator is working normal

CHECK .2. CASE it is flashing and the f

and 0.2 seconds OFF alway(engine cranked or not). Thimalfunction. GOTO DIAGNO

3. CASE the CHECK TRANS indand the flash is 0.4 seconds(1) This means that the Tra

(TCM) is in flashing codeused for service. This mterminal 11 of data link cground. To go out of thi

(2) Check if terminal 11 of dis shorted to ground. (V

when there is a short to volts).

(3) Check if TCM terminal D(4) Remove the short circui

problems.(5) IF problem solved: GOT

INDICATOR.NO: GOTO TCM MEM-C

ON

OFF

IGN Key ON

3 Sec.(Lamp check)

ON

OFF

IGN Key ON

3 Sec.(Lamp check)

0.2 Sec.

(2.5 Hz)

3.2 Sec.

0.2 Sec.

Normal

Abnormal

826RV061

87654321

161514131211109

AUTOMATIC TRANSMI

4. CASE it is staying ON alway(1) This means that connect

and the TCM is shorted (2) V if if i t t



CHECK TRANSINDICATORCONTROL

DIAGNOSTICINPUT

CHECK TRANS(METER)

B-242

FUSECB-515A

FUSE BOX

H-26

7

D16(16) C-95

C10(10) C-95

YEL/BL

ORN/B

(2) Verify if instrument paneB-24 is shorted to groun

(3) Verify if the TCM connecshorted to ground.

(4) Verify that the instrumennector B-24 is connected

(5) IF problem solved: GOTOINDICATOR.NO: GOTO TCM MEM-C

5. CASE it is staying OFF wit

OFF).(1) This means that connect

and the TCM is shorted t(2) Verify if instrument pane

B-24 is shorted to batter(3) Verify if the TCM connec

shorted to battery or ope(4) Verify that the instrumen

connector B-24 is conne

check the fuses and the (5) IF problem solved: GOTO

INDICATOR.NO: GOTO TCM MEM-C


FLASHING CODES

1. ON BOARD DIAGNOSIS (SE(1) The Transmission Contr

ON

IGN Key ON



conducts a self-test of m

components in the systeturned ON. If a fault is da Diagnostic Trouble Conumber that correspond

(2) When the problem deteCHECK TRANS indicator0.2 seconds and OFF 0.2repaired and the TCM m

ON

OFF

3 Sec.(Lamp check)

ON

OFF

IGN Key ON

3 Sec.(Lamp check)

0.2 Sec.

(2.5 Hz)

3.2 Sec.

0.2 Sec.

Normal

Abnormal

2. DIAGNOSTIC TROUBLE CO(1) DTC can be displayed by

Control Module (TCM) bterminals 11 and 4 or 5 Diagnosis Connector (C-compartment.(This grounds the TCM p

826RV061

87654321

161514131211109

AUTOMATIC TRANSMI

(2) After this, the CHECK TRfor 3.2 second and then times.1 When there are m



ON

OFF

Diagnostic test start

0.4 Sec. 0.4 Sec.

3.2 Sec.

0.4 Sec.

0.4 Sec.

(1.25 Hz)

ON

OFF

The trouble code(s)Example: DTC 11 x 3

3.2 Sec.

0.4 Sec. 0.4 Sec. 0.4 Sec. 0.4 Sec.

0.4 Sec.1.2 Sec. 1.2 Sec. 0.4 Sec.

Diagnostic test start

Normal

Abnormal

1 When there are mmeans that the indic

OFF for 0.4 secondsthis case there is no • To find the proble

without DTC GOTO2 When there are les

see DTC of 2 digits rwhen all codes havedisplayed again begi

3 Do not care about tbefore “22” it does n4 Write down all codes

CHECK .(3) IF CHECK TRANS indica

“CHECK TRANS” CHECK


TECH2 CONNECTIONIn order to access Transmissiodata, use of the TECH2 scan tool

1 The electronic diagnosis eq



1. The electronic diagnosis eq

(1) TECH2 (3000094) hand-hcable (3000095).(2) SAE 16/19 adapter (3000

connector (3000112) (2),(3000117) (3).

901RW176

F07RW033

1

2

3

AUTOMATIC TRANSMI

1



2. Connecting the TECH2

NOTE:Always observe instructions in tSystem PCMCIA card.

5

3

2

Legend1. PCMCIA Card2. RS232 Loop Back Connector3. SAE 16/19 Adaper4. DLC Cable5. Tech2


5. Connect the TECH2 SAE 16/DLC.



87654321

161514131211109

826RV061

Press (ENTER) To Continue

060RW009

6. The vehicle ignition turns o

7. Verify the TECH2 power up

NOTE:The RS232 Loop back connectordiagnosis of TECH2 and refer to

AUTOMATIC TRANSMI

CLEAR DTC

Remark: If you clear the DTCCodes) you will not be able recorded during the last Tro



recorded during the last Tro

Remark: To be able to use tproblem you will need to reproblem. This may require aturning the ignition on (this the fault).

1. IF you have a TECH2:(1) Connect the TECH2 if it i

GOTHROUGH TECH2 CO

(2) Push “F4” and answer “ you really want to clear 1 When a malfunction

TECH2 displays “4L3CLEARED”. This meastill there or that the please GOTO DTC CH

2 When a malfunction the recovery is done

“4L30E CODES CLEA2. IF you have no TECH2:

(1) Short the Data Link Conto terminal 4 or 5 (groun1 IF it is flashing and t

and 0.4 second OFF wmeans that there is nalready cleared.

(2) IF a code is flashedflashing.(3) Push POWER SWITCH

1 If you continue tomeans that the prthe recovery was CHECK .

(4) IF you can not clear the1 GOTHROUGH TCM

2 Disconnect the TC3 Reconnect the TC

4 IF the DTC is not cCAL REPLACEMEN

87654321

161514131211109

826RV061


DTC CHECK

1 Diagnosis Trouble Codes (Dby TECH2 or FLASHING CO

2 You have written the list of



2. You have written the list of

malfunctions has no meanionly one or two malfunctiongiven problem.

3. Check directly the DTCs yousorted by number. See Char

DIAGNOSTIC TROUBLE COD

AUTOMATIC TRANSMI

F0: DATA LIST QUICK CHECK

TECH2 DISPLAY CONDITONS CORREC



BATTERY VOLTAGE Ignition ON 9 V ≤ voltag(V

FORCE MOTOR CUR. Engine at idle speed approx. 0.9

CALCULAT. PRESS. Parking brake on approx. 4.0Selector lever position ”D“

SOLENOID A Vehicle traveling at a speed of: approx. ACTIVE

50 km/h (32 mph) with selector lever inposition ”2“ or approx. 70 km/h (44 mph)with selector lever in position ”3“

SOLENOID B Vehicle traveling at a speed of: approx. ACTIVE 10 km/h (6 mph) with selector lever inposition ”L“ or approx. 30 km/h (18 mph)with selector lever in position ”2“

BAND APPLY SOL. Engine at idle speed approx. 99%

Selector lever position ”L“ TCC SOLENOID Vehicle traveling at a speed of approx. ON

80 km/h (50 mph)Selector lever position ”D“

TCC SLIP RPM Constant engine speed 0±10 RPMSelector lever position “D” TCC on

BRAKE SWITCH Ignition ON ACTIVE Brake pedal pressed

AT INPUT SPEED Engine speed ≤ 200 rpm Engine speOutput speed >1024 rpmSelector lever position ”D“, ”3“, ”2“, ”L“

AT OUTPUT SPEED Output speed ≤ 0 rpm Output speEngine speed >3000 rpm (RPM)Selector lever position ”D“, ”3“, ”2“, ”L“

BAROMETER Engine at idle speed 0.9 ~1.0 baSENSOR approx. 0.0

SELECTOR POS. Ignition ON DependentShift through all selector lever positions selector lev


F0: DATA LIST QUICK CHECK (continued)

TECH2 DISPLAY CONDITONS CORREC



SELECTOR PIN A Ignition ON ACTIVE Selector lever position:”P“, ”R“, ”3“ or ”2“

SELECTOR PIN B Ignition ON ACTIVE Selector lever position:”R“, ”N“,”D“ or ”3“

SELECTOR PIN C Ignition ON ACTIVE

Selector lever position:”D“, ”3“, ”2“ or ”L“

SELECTOR PIN P Ignition ON ACTIVE Selector lever position:”P“, ”N“, ”3“ or ”L“

TPS SIGNAL Ignition ON Throttle body in idle speed position 0.1 V to 0.9 Throttle body in full load position 4.9 V or les

KICK DOWN SWITCH Ignition ON ACTIVEDepress accelerator pedal to stop

A/C REQUEST Engine running. Air conditioning ON. ACTIVECompressor engaged.

TRANSM. OIL TEMP. Engine running 70 - 120°C/approx. 1.0

COOLANT TEMP SW. Ignition ON: Engine warm COLD (≤ 63WARM (>

POWER SWITCH Ignition ON ACTIVE

Press “POWER” switch

POWER LAMP Engine running ONPress “POWER” switch

AUTOMATIC TRANSMI

CHART 1

DIAGNOSIS CONNECTOR AND VOLTAGE SUPPLY



FUSEEB-1210A

RELFUSBO

FUSEEB-1420A

ECMMAINRELAY

A4(4) A7(7) A8(8) C-96

TO ECM

BATTERYINPUT

GROUND

IGNITIONINPUT

DIAGNOSTICINPUT

5 1 X-18

3 2 X-18

RED/GRN

GRN

SERIAL DATA

YEL YEL/BLK

C8(8)

D1(17)

C1(1)

C-95D16(32)

BLU/RED

RED/BLU

RED/BLU

YEL

BLK BLK


CHART 1

DIAGNOSIS CONNECTOR AND VOLTAGE SUPPLY



TECH2 REFERS TO CHART 1 WHEN THE EQUIPMENT IS CORRECTLY CONNECTED, BUT NO DATA (WFROM TECH2.

• PERFORM TECH2 SELF-TEST.IS TECH2 OK?

• IGNITION SWITCH OFF.• DISCONNECT TCM CONNECTOR C-95 AND C-96.• IGNITION SWITCH ON.• CONNECT VOLTMETER BETWEEN TERMINAL A4 AND

GROUND TERMINAL C1 OR D1 OF TCM CONNECTOR.• THEN CONNECT VOLTMETER BETWEEN TERMINAL A7

OR A8 AND GROUND TERMINAL C1 OR D1 OF TCMCONNECTOR.

DO BOTH DISPLAYS INDICATE BATTERY VOLTAGE?

• IGNITON SWITCH OFF.• CONNECT OHMMETER BETWEEN TERMINAL 11 OF 16-PIN

DATA LINK CONNECTOR C-102 AND TERMINAL D16 OF TCM CONNECTOR C-95.

• THEN CONNECT OHMMETER BETWEEN TERMINAL 4 OR 5OF 16-PIN DATA LINK CONNECTOR C-102 AND GROUND.

DO BOTH DISPLAYS INDICATE APPROXIMATELY 0 OHMS?

• CHECK FOR SHORT BETWEEN TERMINAL D16 ANDGROUND AND BETWEEN TERMINAL D16 AND B+.

IF OK, GOTO TCM MEM-CAL REPLACEMENT.

YES

YES

YES

NO

SEE TECH2 OPERATOR’S MA

NO

CHECK FUSE OR WIRE FOR O

NO

CHECK WIRE FOR OPEN.

AUTOMATIC TRANSMI

CHART 2: DIAGNOSTIC TROUBLE CODE (DTC)

DTC MALFUNCTION



11 OUTPUT SPEED FAILURE

13 ENGINE SPEED FAILURE

15 TRANSMISSION OIL TEMPERATURE SHORT TO PLUS OR OPEN

16 TRANSMISSION OIL TEMPERATURE SHORT TO GROUND

21 THROTTLE POSITION SENSOR SHORT TO PLUS

22 THROTTLE POSITION SENSOR SHORT TO GROUND OR OPEN

23 THROTTLE POSITION SENSOR CONNECTOR OPEN

25 SUPPLY VOLTAGE TOO LOW

26 SUPPLY VOLTAGE TOO HIGH

31 SOLENOID A SHORT TO GROUND OR OPEN

32 SOLENOID B SHORT TO GROUND OR OPEN

33 TCC HIGH SHORT TO PLUS OR OPEN

34 BAND APPLY SOLENOID SHORT TO GROUND OR OPEN

35 FORCE MOTOR OPEN OR SHORT TO PLUS OR GROUND

36 SHIFT HIGH SHORT TO GROUND OR OPEN37 TORQUE MANAGEMENT SERIAL LINE FAULTY

41 SOLENOID A SHORT TO PLUS

42 SOLENOID B SHORT TO PLUS

43 TCC HIGH SHORT TO GROUND

44 BAND APPLY SOLENOID SHORT TO PLUS

46 SHIFT HIGH SHORT TO PLUS

51 ENGINE COOLANT SWITCH SHORT TO GROUND, PLUS OR OPEN

52 KICK DOWN ALWAYS ON OR SHORT TO GROUND

53 MODE SWITCH IN P OR N OR R BAD POSITION

54 MODE SWITCH ILLEGAL POSITION

55 BRAKE SWITCH SHORT TO GROUND OR OPEN

56 BRAKE SWITCH SHORT TO PLUS

61 GEAR ERROR

62 DOWNSHIFT PROTECTION

63 EPROM CSUM FAILURE82 SHIFT OR BAND APPLY SOLENOIDS FAULTY DURING DRIVING


CHART 3: TRANSMISSION AND TCM IDENTIFICATION

Chart 3 contains a list of all important information concerning rear axle ratio, Tra(TCM), and transmission identification.

VEHICLE TCM TRANSM



VEHICLE TCM TRANSM

Type Engine ISUZU Parts No.Calibration

Isuzu PaCode

Isuzu/3.2L V6 4.555

TFR8-09350-909-0 G22 8-96018

Rr axleRatio

ABE

The idenification plate islocated on the left-hand sideof the transmission above themode switch.

AT Transmission identification onvehicle identification plate :

1. Model code

2. Calibration code

3. Production serial number

4. Production part number

TCM IDENTIFICATI

A. ISUZU part numbe

B. Model of carC. DELCO part numbeD. ApplicationE. Service TCM numbF. Broadcast code

G 22

96

0000 000

018 434PART No.

SERIAL No.SAL

HYDRAMATICSTRASBOURGMADE I N FRANCE

1

2 3 4

AUTOMATIC TRANSMI

CHART 5: F5: ACTUATOR TEST QUICK CHECK

Before carrying out the Actuator Test, the selector lever should be placed in select The ignition should be switched ON, engine not running.



TECH2 DISPLAY NOTES CORRECT RESULT

SOLENOID A Press arrow up (ON) “Click” heard fromPress arrow down (OFF) transmission

SOLENOID B Press arrow up (ON) “Click” heard fromPress arrow down (OFF) transmission

SHIFT SOLENOID Press arrow up (ON) “Click” heard from

Press arrow down (OFF) transmission

TCC SOLENOID Not used –

TCC HIGH (D) Press arrow up (ON) “Click” heard fromPress arrow down (OFF) transmission

POWER LAMP Press arrow up (ON) POWER lamp ONPress arrow down (OFF)

CHK. TRN. LAMP Press arrow up (ON) CHECK TRANS lampPress arrow down (OFF) ON

1 FOR DIAGNOSIS OF A DTC SEE CHART 2: DIAGNOSTIC TROUBLE CODES (DTC


DIAGNOSTIC TROUBLE CODE (DTC) 11

OUTPUT SPEED FAILURE

This DTC flashes the CHECK TRANS indicator andsets the BACKUP MODE.

Diagnostic Aids:

• This diagnostic is not a



Circuit Description: The transmission output speed sensor providesinformation on vehicle speed to the TransmissionControl Module (TCM). The speed sensor circuitconsists of a magnetic induction type sensor. Thesensor is mounted above a target wheel pressed onthe output shaft in the transmission extension. As

the output shaft turns, the target wheel teeth inducea variable voltage in the magnetic pickup. Thisalternating current (AC) signal is provided to the TCM. The voltage increases with the speed of thewheel but this is not used to define the speed of thevehicle. As the vehicle moves faster, the signalalternates faster between positive and negativevoltages. The Output speed information isproportional to the frequency of the signal.

This diagnostic is not a

the TCM but a test betw(“logic test”).

• Detection conditions:1 Output Speed <or =2 Engine Speed >3003 No Malfunction: Eng

Switch DTC54.4 Selector lever not in

5 The conditions need5 seconds.

• Action after the detectio1 CHECK TRANS Indic2 TCM in BACKUP MO

• Recovery conditions : T

CYCLE.

TRANSMISSIONCONTROLMODULE (TCM)

A12(12)

C-96

C-95

C1(1)

D1(17)

1

M-15

2

TRANSMISSION SPEEDSENSOR SHIELDS

+

—

OUTPUTSPEEDINPUT

H-23

10

11

9

PNK

B11(23)

B12(24)

GROUND

BLK BLK

7

H-25

PNK

BLU

BLK

BLU

AUTOMATIC TRANSMI


OUTPUT SPEED FAILURE

CAUTION: If wire to connector C-96 terminal B12 is short to voltage, Tra(TCM) will be damaged.



IF the DTC 53 is set:

GOTHROUGH DTC 53 firstand do a test drive.

Problem is intermittent.GOTO INTERMITTENT

CONDITIONS.

Check for faulty TCM connection.IF OK GOTO TCM MEM-CAL

REPLACEMENT.

YES

YES

YES

NO

NO

NO

IF you have a SCAN TOOL: TECH2?

• Raise drive wheels.• Connect the TECH2 GOTHROUGH TECH2

CONNECTION.

• Push “F0”: DATALIST: DISPLAY. Read “AT OUTPUTSPEED”.

IF: Output Speed different from 0 RPM when the wheelsare turning:

• Ignition switch OFF.• Disconnect TCM conne• Connect ohmmeter be

A12 and terminal B12.IF: display is approx. 3K o

• Connect ohmmeter between connectorC-96 terminal A12 and ground connectorC-95 terminal C1.

IF: display indicates an open circuit:

NO

YES

NO

YES

YES

• Discsen

• Contermsen

IF: disp

• WireC-96consho

( ) g


CONTINUED FROMPREVIOUS PAGE

A



NO YES

YES

• Connect voltmeteterminal A12 and terminal C1.

• Ignition switch ONIF: display indicates a

Check for faulty TCMconnectors.IF OK GOTO TCM

MEM-CAL

REPLACEMENT.

Repair.

AUTOMATIC TRANSMI

MEMO





ENGINE SPEED FAILURE

This DTC flashes the CHECK TRANS indicator andset the BACKUP MODE.

• Detection conditions:

1 Engine speed <or =



Circuit Description: The Engine Control Module (ECM) sends a signal tothe Transmission Control Module (TCM) thatindicates engine speed in RPM. When the vehicle isin neutral gear and the engine is at idle, the enginespeed should be approximately 800 RPM.

Diagnostic Aids:• This Diagnostic is not an electrical test done bythe TCM but a test between different information(“logic test”).

2 Output Speed >102

3 Acceleration >2 Km

4 No DTC: Output S

Protection DTC62

Position DTC54.

5 Selector Lever not i

6 The conditions need

0.5 second.• Action after the detectio• Recovery conditions: T

CYCLE

ENGINERPMINPUT


E

TACHOMETER ( METERC-95

D12(28)

ENGINERPMOUTPUT

B-24 3 )H-20

6 12 E-61

BLK/RED BLK/RED

H-6

16

AUTOMATIC TRANSMI


ENGINE SPEED FAILURE

Install scan tool.GOTHROUGH TECH2 CONNECTION.



• Engine running at idle.• Brake applied.• Selector lever position “N” or “P”.• Selector “F0: DATA LIST: AT INPUT

SPEED”.IF: TECH2 DISPLAY approximately 800

RPM:

This system is functioning correctly. The problem is probably intermittent.GOTOINTERMITTENT CONDITIONS.

IF: Tachometer displays engine speed?

• Check wire for open orvoltage between Tachoterminal 3 and engine connector E-61 terminaterminals and intermed16.

• Repair harness. If still Check Engine electricaIf still problem, replace(ECM).

YES NO

YES NO

• Check wire for open or short to ground or short tovoltage between Transmission Control Module (TCM)and connector C-95 & C-96, and connector C-95terminal D12 and engine control module (ECM)connector E-61 terminal 12, and check intermediateconnector H-20 terminal 6.

• Repair harness. If still not working: GOTO TCM MEM-

CAL REPLACEMENT.



TRANSMISSION OIL TEMPERATURE SHORT TO PLUS OR

This DTC does NOT flash the CHECK TRANSindicator and does NOT set the BACKUP MODE.

Table:

°C °F



Circuit Description:• The transmission oil temperature sensor is a

thermistor within the internal wiring harness of the transmission in the adaptor case oil pan. The Transmission Control Module (TCM) applies 5volts to the sensor connector M-6 terminal 3(C). The other side of the sensor is connected to

ground through the TCM terminal C14.When the transmission oil is cold, the sensorresistance is high and the TCM will sense highsignal voltage.

• As the transmission oil temperature warms tonormal transmission operating temperature of 80°C (176°F), the sensor resistance becomes lessand the voltage decreases at about 3.5 volts.Note, for more accuracy the measurement is

done differently for low temperature (less than45°C) and high temperature (more than 50°C).

• When DTC15 is set, the transmission will use awarm value for operation, but the scan tool willdisplay the actual oil temperature.

• Table shows thermistor resistance at differenttemperatures.

Diagnostic Aids:• This Diagnostic is an e

TCM.• Detection conditions:

1 Voltage between te

volts.

2 The condition need

20 seconds. Note:

the TCM reads the h

–40°C temperature.• Action after the detec

mission Oil Temperatur• Recovery conditions: T

or =to 4.74 volts after d

C F–40 –40

0 32

20 68

80 176

120 248

150 304

TRANSMISSIONOIL

TEMPERATURESENSORINPUT

M-6

M-63(C)

5(D)

C-96

TRANSMISSIONOIL

TEMPERATURESENSOR

H-38GRY

1

2

BLUC-95

B3(15)

C14(14)

GRY

BLU

AUTOMATIC TRANSMI


TRANSMISSION OIL TEMPERATURE SHORT TO PLUS OR

Install scan toolGOTHROUGH TECH2 CONNECTION.



• Connect voltmeter between connectorC-96 terminal B3 and connector C-95ground terminal C1.IF: If you have more thanapproximately 4.74 Volts:

• Check for a short to plus or open between connectorC-96 terminal B3 and connector C-95 terminal C14. This faulty connection can be at the connector M-6terminal 3 (C) or 5 (D). This faulty connection can beat the intermediate connector H-38 terminals.

• RepairIf not OK: Disconnect sensor.

• Connect ohmmeter between sensor terminals 3(C)

and 5(D).Refer to the table of the resistance function of thetemperature.If resistance not correct, replace the transmission oiltemperature sensor.

YES

YES

NO

NO

DTC 15 is GOTO INT

GOTO TCM

• Ignition switch ON. Engine not running.• Selector lever position “P”.• Select “F0: DATA LIST: Trans. Oil Temp”.IF: TECH2 DISPLAY more than 4.74 Volts:



TRANSMISSION OIL TEMPERATURE SHORT TO GROU


warm value for operatdisplay the actual oil tem

• Table shows thermist



Circuit Description:• The transmission oil temperature sensor is a

thermistor within the internal wiring harness of the transmission in the adaptor case oil pan. The Transmission Control Module (TCM) applies 5volts to the sensor connector M-6 terminal 3(C). The other side of the sensor is connected to

ground through the TCM terminal C14. When thetransmission oil is cold, the sensor resistance ishigh and the TCM will sense high signal voltage.

• As the transmission oil temperature warms tonormal transmission operating temperature of 80°C (176°F), the sensor resistance becomes lessand the voltage decreases at about 3.5 volts.Note, for more accuracy the measurement isdone differently for low temperature (less than

45°C) and high temperature (more than 50°C).• When DTC16 is set, the transmission will use a

Table shows thermisttemperatures.



1 Voltage between te

volts.2 The condition need

20 seconds. Note:

the TCM reads the

170°C temperature.• Action after the detec

mission Oil Temperatur• Recovery conditions: T

or =to 0.4 volts after de

TRANSMISSIONOIL

TEMPERATURESENSORINPUT

GROUND

M-6

M-63(C)

5(D)

C-96

TRANSMISSIONOIL

TEMPERATURESENSOR

H-38GRY

H-25

1

2

BLU

C1(1)

D1(17)

BLK

BLK

C-95

B3(15)

C14(14)

GRY

BLU

BLK

AUTOMATIC TRANSMI


TRANSMISSION OIL TEMPERATURE SHORT TO GROU

Install scan toolGOTHROUGH TECH2 CONNECTION.



• Ignition switch ON. Engine notrunning.

• Selector lever position “P”.• Select “F0: DATA LIST: Trans. Oil

Temp”.IF: TECH2 DISPLAY less than 0.4 Volts:

DTC 16 is inteGOTO INTERM

GOTO TCM M

YES

YES

NO

NO

• Check for a short to ground betweenconnector C-96 terminal B3 andconnector M-6 terminal 3 (C). Thisfaulty connection can be at theintermediate connector H-38 terminal2.

• RepairIf not OK: Disconnect sensor.

• Connect ohmmeter between sensorterminals 3(C) and 5(D).Refer to the table of the resistancefunction of the temperature (DTC 15).If resistance not correct, replacesensor.

• Connect voltmeter between connectorC-96 terminal B3 and connector C-95ground terminal C1.

IF: If you have less than approximately0.4 Volts:



THROTTLE POSITION SENSOR SHORT TO PLUS


• This TPS is an electricabe soaked in any liqu

damage may result.



Circuit Description:• The Throttle Position Sensor (TPS) provides a

voltage signal that changes relative to the throttleplate position. Signal voltage between connectorC-95 terminals C5 and C6 will vary from about 0.4at idle to about 4.6 volts at wide open throttle.

• The Engine Control Module (ECM) also receives

this signal. This TPS is a variable resistance withone side (connector E-68 terminal 1) connectedonly to the ECM connector to have the 5 voltssupply voltage. The other side (connector E-68terminal 3) is connected to the TransmissionControl Module (TCM) (floating ground) and theECM (ground). The “middle” (the wiper) (con-nector E-68 terminal 2) is connected to the TCMand the ECM.

• The ECM monitors output voltage from the TPSand determines fuel delivery based on throttlevalve angle (driver demand).

g y



1 Voltage between co

and C6 > 4.9 volt

when: The wiper iscan stall).


0.5 seconds. Note:

the TCM reads “100• Action after the detectio• Recovery conditions: T

or =to 4.9 volts and do

TPSINPUT

GROUND

TRANSMISSIONCONTROLMODULE(TCM)

C-95

C5(5) 5

H-25

3C6(6)

GRN

BLU

BLU

BLUBLU

GRN

27

5VOLTREFERENCE

TPSINPUT

GROUND

GRY

GRY GRY

ENGINECONTROL

26 39 E-61

AUTOMATIC TRANSMI


THROTTLE POSITION SENSOR SHORT TO PLUS

Check Engine Control Module (ECM)DTC.

IF: DTC on Throttle Position Sensor (TPS)i t



exists:

Check diagnosis of ECM and repair.

• Connect voltmeter between connectorC-95 terminal C5 and TPS groundterminal C6.

IF: If you have more than 4.9 volts:

DTGOCO

GOTO TCM MEM-CAL

REPLACEMENT.

• Check for a short to voltage or open circuit between connector C-95terminal C5 and connector E-68 terminal 2. This faulty connection can be at intermediate connector H-25terminal 5. The short to voltage only can be at the ECM connector E-61 terminal26.

• Repair.If not OK: Disconnect sensor.

• Connect ohmmeter between sensor terminals 2 wiper and 3 lowside.If resistance between TPS terminal 2 and 3 does not change when

YES NO

YES NO

NO YES

• Install scan tool GOTHROUGHCONNECTION.

• Ignition switch ON, engine not

running.• Selector lever position “P”.• Select F0: DATA LIST: “ TPS SIIF: TECH2 DISPLAY more than 4.9



THROTTLE POSITION SENSOR SHORT TO GROUND OR


Ci i i i

• This TPS is an electricabe soaked in any liqu

damage may result.







• The ECM monitors output voltage from the TPSand determines fuel delivery based on throttlevalve angle (driver demand)



1 This detects a TPS w

(except certain con

short to TPS low. Th

open.

2 Voltage between co

and C6 <0.2 volts.


0.5 seconds. Note:

the TCM reads “0%• Action after the detectio• Recovery conditions: T

or =to 0.2 volts and do

TPSINPUT

GROUND

TRANSMISSIONCONTROLMODULE(TCM)

C-95

C5(5) 5

H-25

3C6(6)

GRN

BLU

BLU

BLUBLU

GRN

27

5VOLTREFERENCE

TPSINPUT

GROUND

GRY

GRY GRY

ENGINECONTROL

26 39 E-61

AUTOMATIC TRANSMI


THROTTLE POSITION SENSOR SHORT TO GROUND OR


IF: DTC on Throttle Position Sensor (TPS)exists:



exists:

Check diagnosis of ECM and repair. • Install scan tool GOTHROUGHCONNECTION.


running.• Selector lever position “P”.• Select F0: DATA LIST: “ TPS SIIF: TECH2 DISPLAY less than 0.2 v

• Connect voltmeter between connectorC-95 terminal C5 and TPS groundterminal C6.

IF: If you have less than 0.2 volts:

DTGOCO

GOTO TCM MEM-CAL

REPLACEMENT.

• Check for a short to ground between connector C-95 terminal C5 andconnector E-68 terminal 2. This faulty connection can be at the intermediate connector H-25terminal 5.This faulty connection can be at the ECM connector E-61terminal 26.

• Repair.

If not OK: Ignition switch OFF. Disconnect sensor connector E-68.• Connect ohmmeter between connector C-95 terminal C5 and C6.• Check if the circuit is open.• Repair.

If not OK: Ignition switch OFF. Disconnect sensor connector E-68.

YES NO

YES NO

NO YES



THROTTLE POSITION SENSOR CONNECTOR OPEN


Circuit Description:

Diagnostic Aids:• This Diagnostic is not

the TCM but a test betw(“logic test”)







• The ECM monitors output voltage from the TPSand determines fuel delivery based on throttlevalve angle (driver demand).

• This TPS is an electrical component and must notbe soaked in any liquid cleaner or solvent, asdamage may result.

( logic test ).• Detection conditions:

1 This detects the term

the connector E-68 o

2 Throttle value open

3 Engine Speed <220

4 Vehicle Speed <3 Km

5 No DTC: Engine SpeDTC11. Downshift P

6 Only with Selector L

7 The detection is aut

seconds after ignitio

8 The conditions need

3 seconds.• Action after the detectio

• Recovery conditions: TCYCLE.

TPSINPUT

GROUND

TRANSMISSION

C-95

C5(5) 5

H-25

3C6(6)

GRN

BLU

BLU

BLUBLU

GRN

27

GRY

GRY GRY

26 39 E-61

AUTOMATIC TRANSMI


THROTTLE POSITION SENSOR CONNECTOR OPEN


IF: DTC on Throttle Position Sensor (TPS)exists:



exists:

Check diagnosis of ECM and repair. • Install scan tool GOTHROUGHCONNECTION.


running.• Selector lever position “P”.• Select F0: DATA LIST: “ TPS SIIF: TECH2 DISPLAY approx. 2.5 vowhatever the throttle valve positi

IF: TPS connector E-68on the engine is open:

Repair.

• Ignition switch OFF. Disconnect connectoConnect ohmmeter between connector CIf open circuit:

• Check for an open between connector C-E-68 terminal 2 with a simultaneous opeconnector E-68 terminal 3. This faulty connection can be at the inter

terminal 5 and 3.• Repair.

If not OK: Ignition switch OFF. Disconnec• Connect ohmmeter between sensor term

side.If resistance between TPS terminal 2 and

YES NO

YES

YES



SUPPLY VOLTAGE TOO LOW



Specification decrea

oil temperature:

–40°C (–40°F) =8.7 v90°C (194°F) =9 0 vo



Circuit Description: The ignition voltage of Transmission ControlModule (TCM) terminals A7 and A8 is monitored bythe TCM and when the voltage is too low (approx. 9volts) the DTC25 is stored and the BACKUP MODEis set.

Diagnostic Aids:• This Diagnostic is an electrical test done by the


1 Ignition voltage measured between TCM

terminal A7 or A8 and ground C1 is lower

than specification.

90 C (194 F) =9.0 vo

150°C (304°F) =9.2 v


1 second• Action after the detectio• Recovery conditions:

voltage must be higher

Specification decreasestemperature:

–40°C (–40°F) =9.2 v

90°C (194°F) =9.5 vo

150°C (304°F) =9.6 v

B

BATTERY

B

FUSE

EB-1210A

EB-1420A RELAY &

FUSE BOX

X-18 3

X-18 5

ECMMAINRELAY

—

+

RED/GRN

GRN

2

1

AUTOMATIC TRANSMI


SUPPLY VOLTAGE TOO LOW

• Ignition switch ON. Engine OFF.• Connect voltmeter between B+and B- terminals of

battery.IF: Display greater than 9 volts:



• Engine running.• Connect voltmeter between B+and B- terminals of

battery.

IF: display between 13 and 16 volts?

• Ignition switch OFF.• Disconnect Transmission Control Module (TCM)

connector C-95 and C-96.• Ignition switch ON. Engine OFF.

• Connect voltmeter between connector C-96 terminalA7 and connector C-95 terminal C1.

IF: Display greater than 9 volts:

Check for faulty connection and if OK.GOTO INTERMITTENT CONDITIONS.

Check fuse and wiopen circuit.

Check regulator.

Check battery.

YES

YES NO

YES NO

NO



SUPPLY VOLTAGE TOO HIGH



• Detection conditions:

1 Ignition voltage m

terminal A7 or A8 than 15.5 volts.



C cu esc p o The ignition voltage of Transmission ControlModule (TCM) terminals A7 and A8 is monitored bythe TCM and when the voltage is too high (approx.16 volts) the DTC26 is stored and the BACKUPMODE is set.

Diagnostic Aids:• This Diagnostic is an electrical test done by the

TCM.

than 15.5 volts.


1 second.• Action after the detectio• Recovery conditions: T

<=15.5 volts.

B

BATTERY

B

FUSE

EB-1210A

EB-1420A RELAY &

FUSE BOX

X-18 3

X-18 5

ECMMAINRELAY

—

+

RED/GRN

GRN

H-25

2

1

RED/BLUBLK

AUTOMATIC TRANSMI


SUPPLY VOLTAGE TOO HIGH

• Ignition switch ON. Engine OFF.• Connect voltmeter between B+and B- terminals of

battery.IF: Display greater than 15.5 volts:



• Engine running.• Connect voltmeter between B+and B- te

battery.

IF: Display between 3 to 15.5 volts:

Check battery.

Check regulator.

Check regu

YES NO

YES NO

YES

• Ignition• Disconn

ModuleC-96.

• Ignition• Connec

connecconnect

IF: Display



SOLENOID A SHORT TO GROUND OR OPEN



• There are two tests of tis cranked (DTC82) a

turned ON (DTC31).• When the ignition is tu

i i k d th



SHIFTSOLENOIDA

SHIFTSOLENOIDB

M-73(D)

C-96 YEL/GRN H-23

13A2(2)GROUND

YEL/GRN

• The solenoid A is a simple ON/OFF solenoidlocated in the main case valve body. Thesolenoid is the normally closed-type. In second orthird gear the Transmission Control Module(TCM) energizes the solenoid to open a fluid inletport. When the port is open, fluid pressureactuates the shift valve.

• The solenoid is activated by a current. Thiscurrent is produced by applying a voltage to oneside (the High side) and a ground to the otherside (Low side).

• The High Side Driver (HSD) is a circuit of the TCMthat acts as a switch between the solenoids andthe supply voltage. The High side of the solenoidis permanently supplied with voltage, except in

BACKUP MODE or when ignition is OFF the HSDis turned OFF.• The TCM continually monitors the solenoid

connection to its Low Side Driver (LSD) for eitherlow or high voltage. The LSD is a circuit of the TCM that acts as a switch between the solenoidand ground. When the solenoid is commandedON the TCM is switching the solenoid to ground.

engine is cranked, thesolenoids (A, B and Bcircuits or open circuitsto 4th, 3rd, 1st, 1st witHSD. Each one of thsecond. If the engine is all tests, the remaining


TCM.• Detection conditions:1 The solenoid low

terminal A2 is short2 The test is only don3 Engine Speed < 48

Output Speed =0 R4 The conditions nee

1.03 second after ig• Action after the detectio• Recovery conditions: T

CYCLE.

• Ignition switch OFF.

• Disconnect Transmission Control Module (TCM)

connector C-95 and C-96.• Connect ohmmeter between connector C-95 terminal

C12 and connector C-96 terminal A2

AUTOMATIC TRANSMISS


SOLENOID A SHORT TO GROUND OR OPEN



C12 and connector C 96 terminal A2.

IF: Display between 17.5 and 18.5 ohms?

•

Check for faulty connector orwiring between terminal A2

and ground.

• Repair.

YES NO

YES

YES

YES

NO

• Connect ohmmeter between connector C-96terminal A2 and connector C-95 terminal C1

(TCM ground).

IF: Short circuit:

Check for an open circuit betw96 terminal A2 and connector

IF: Wiring problem?

The problem is intermittent.

GOTO INTERMITTENT

CONDITIONS.

The problems isintermittent.

GOTO INTERMITTENT

CONDITIONS.

Repair.

• Disconnect solenoid A con

• IF: Ohmmeter displays bet

ohms on the solenoid A te



SOLENOID B SHORT TO GROUND OR OPEN


Circuit Description:Th l id B i i l ON/OFF l id

• There are two tests of tis cranked (DTC82) a


engine is cranked the



• The solenoid B is a simple ON/OFF solenoidlocated in the main case valve body. Thesolenoid is the normally open-type. When theport is open, fluid pressure actuates the shiftvalve. In first or second gear the TransmissionControl Module (TCM) energizes the solenoid toclose a fluid inlet port.


• The High Side Driver (HSD) is a circuit of the TCMthat acts as a switch between the solenoids andthe supply voltage. The High side of the solenoidis permanently supplied with voltage, except in

BACKUP MODE or when ignition is OFF the HSDis turned OFF.• The TCM continually monitors the solenoid




TCM.• Detection conditions:1 The solenoid low


Output Speed =0 R4 The conditions nee


CYCLE.

SHIFT

SOLENOIDA

SHIFT

SOLENOIDB

M-71(A)

C-96BRN/BLK H-23

6A3(3)

SHIFT

GROUNDBRN/BLK

AUTOMATIC TRANSMISS


SOLENOID B SHORT TO GROUND OR OPEN


• Disconnect Transmission Control Module (TCM)

connector C-95 and C-96.• Connect ohmmeter between connector C-95 terminal

C12 and connector C-96 terminal A3.



YES

YES

NO

NO

YES

YES

IF: Display between 17.5 and 18.5 ohms?

•Connect ohmmeter between connector C-96terminal A3 and connector C-95 terminal C1

(TCM ground).

IF: Short circuit:

Check for an open circuit betw96 terminal A3 and connecto

IF: Wiring problem?


GOTO INTERMITTENT

CONDITIONS.

The problems isintermittent.

GOTO INTERMITTENT

CONDITIONS.

• Check for faulty connector or

wiring between terminal A3

and ground.

Repair.

• Disconnect solenoid B con

IF: Ohmmeter displays bet

ohms on the solenoid B te

Repair.



TCC HIGH SHORT TO PLUS OR OPEN

This DTC flashes the CHECK TRANS indicator anddoes NOT set the BACKUP MODE.

Circuit Description:• The Torque Converter Clutch (TCC) solenoid is a

to the ground of the MODE or when ignitio

High Side is turned OFF• The TCM continually

connection to its High



• The Torque Converter Clutch (TCC) solenoid is asimple ON/OFF solenoid connected to theadapter case valve body. When the solenoid isenergized by the Transmission Control Module(TCM), it opens a fluid port. When the port isopen, line pressure actuates the converter clutchcontrol valve which engages the torque converterclutch by exhausting the fluid. The TCM engagesthe torque converter clutch only when all of thefollowing conditions exist:1 The transmission is at operating temperature.2 The brake pedal is released.3 The transmission is operating in second, third

or fourth gear.4 The engine is warm (more than 70°C).

5 The shift pattern requests TCC apply.6 Shift finished.7 No malfunction which will disable the TCC:

DTC43, DTC55 (only short to ground).• The solenoid is activated by a current. This

current is produced by applying a voltage to oneside (the High side) and a ground to the otherside (Low side).

• The High Side Driver (HSD) is a circuit of the TCM

that acts as a switch between the solenoid andthe supply voltage. The High side of the TCCsolenoid is used to turn the TCC ON or OFFbecause the Low side is permanently connected

connection to its High or high voltage.

• There is only one test the engine is cranked a

• If this circuit is shortedis constantly commandIn 1st gear the TCC is h

the TCC solenoid positcar can be driven evenvoltage. The engine cobraking strongly, if thetransmission is still inapplied.Note: The 3-2 shifts are

Diagnostic Aids:• This diagnostic is an e

TCM.• Detection conditions:1 The solenoid high

terminal C7 is short2 The condition need

second.• Action after the detectio

1 TCC is turned OFF.2 CHECK TRANS indic• Recovery conditions: T

CYCLE.

TORQUECONVERTERCLUTCHSOLENOIDCONTROL

M-64(A)

C-95

TORQUE

H-23

12

RED/YEL

C7(7)

RED/YEL

AUTOMATIC TRANSMISS

IF you have a SCAN TOOL: TECH2?

YES


TCC HIGH SHORT TO PLUS OR OPEN



Without TECH2 yo

ACONTINUED ON

NEXT PAGE

YES YNO

SHORT TO PLUS?

• Ignition switch ON. Engine OFF.

• Connect a voltmeter betweenconnector C-95 terminal C7 and car

ground or with TCM groundterminal C1.IF: voltage found:

SHORT T

• Ignitio

• Conneconne

grounterminIF: voltag

CASE: SLIP >20 RPM with TCC =ON

The TCC is shorted to voltage.

• Check wire for a short to voltage betweenterminal C7 and solenoid.Note This short can be to another ire of the

CASE: SLIP =0+OR -10 RPMwith TCC =OFF at any TPS:

This means that the TCC valveis stuck ON or TCC solenoid isshorted to plus.

This means that the TCC valveis stuck OFF or the TCCsolenoid connections areOPEN.

GOTO TCM MEM-CAL

REPLACEMENT.

• Install scan tool: TECH2 GOTHROUGH TECH2 CONNECTION.

While driving the car in 2nd, 3rd or 4th gear check if the TCC isslipping or not when the TCC solenoid is commanded OFF or

ON by the TCM.

Push F0: DATA LIST:Read TCC state and SLIP value.

CASE: DTGOTO DT



TCC HIGH SHORT TO PLUS OR OPEN(CONTINUED)

CONTINUED FROM

PREVIOUS PAGEA



TCC: Torque Converter ClutchTCM: Transmission Control Module

YES

YES NO

NO YES

NO

• Wire between connector C-95 terminal C7 andadapter case connector is open or shorted toanother wire.

• Repair.

• Wire between adapter case connector andsolenoid is open.

• Or wire between transmission (ground) andsolenoid is open.

• Repair.

• Disconnect sol

• Connect ohmmterminals.

IF: Display is betw

• Disconnect transmission adapter case connector M-6.

• Connect ohmmeter between terminal 4(A) of female half of connector and transmission which is used as ground.

IF: Display between 17.5 and 18.5 ohms:

GOTO TCM MEM-CAL

REPLACEMENT.

Replace toclutch sole

OPEN?• Ignition switch OFF.• Disconnect TCM connector C-95 and C-96.• Connect ohmmeter between connector C-95 terminal

C7 and C1 (TCM ground).IF: Display is between 17.5 and 18.5 ohms.

AUTOMATIC TRANSMISS

MEMO





BAND APPLY SOLENOID SHORT TO GROUND OR OP


Circuit Description:• The band apply solenoid is a normally open

is turned OFF.• The TCM continually

connection to its Low Slow or high voltage. T TCM that acts as a sw

d d Wh th



solenoid which controls the flow of fluid for brakeband application. The Transmission ControlModule (TCM) uses Pulse Width Modulation(PWM) and changes the duty cycle to control thesolenoid. The TCM turns the solenoid ON(energized) and OFF (de-energized) at a constant

frequency. The length of time the solenoid isenergized during each ON/OFF cycle is called thepulse width. By varying or “modulating” thepulse width, the solenoid output pressure ischanged. Since the solenoid is normally closed,increasing the pulse width increases the dutycycle and decreases the output pressure. PWMcontrol provides smooth band application

without an accumulator. The band is only appliedin first and second gears.• In the event of an electrical failure (open), the

solenoid regulates at the maximum oil flow (0%duty cycle).


• The High Side Driver (HSD) is a circuit of the TCMthat acts as a switch between the solenoids andthe supply voltage. The High side of the solenoidis permanently supplied with voltage, except inBACKUP MODE or when Ignition is OFF the HSD

and ground. When theON the TCM is switchin

• There are two tests of is cranked (DTC82) aturned ON (DTC34).

• When the ignition is tu



TCM.• Detection conditions:1 The solenoid Low

terminal A9 is short2 The test is only don3 Engine Speed <480

Output Speed =0 R4 The condition need


CYCLE.

SHIFTSOLENOID

BANDAPPLY

M-7

2(B)

C-96 H-23

16

YEL/BLK

A9(9)

GROUND YEL/BLK

AUTOMATIC TRANSMISS

• Ignition switch off.• Disconnect Transmission Control Module (TCM)

connector C-95 and C-96• Connect ohmmeter between connector C-95 terminal

C12 and connector C-96 terminal A9.IF: Display is approx. 10 ohms:


BAND APPLY SOLENOID SHORT TO GROUND OR OP



p y pp

•

Connect ohmmeter between connector C-96 terminalA9 and connector C-95 terminal C1 (TCM ground)IF: Short circuit:

•

Check for an open circuit bterminal A9 and connectoIF: Wiring problem?

• Disconnect band aIF: Ohmmeter dispthe band apply so

The problem is intermGOTO INTERMITTEN

CONDITIONS.

The problem is intermittent.GOTO INTERMITTENT

CONDITIONS.

YES

YES

NO

YES NO

• Check for faultyconnector or wiringbetween terminal A9and ground.

• Repair.

Repair.

Replac

NO

YES NO



FORCE MOTOR OPEN OR SHORT TO PLUS OR GROU


Circuit Description:• The force motor solenoid is a device used to

regulate transmission line pressure The TCM


TCM.• Detection conditions:• The TCM monitors the

line When the return a



regulate transmission line pressure. The TCMuses TPS information and vehicle speed infor-mation to determine the line pressure appro-priate for a given load. The TCM will regulate thepressure by applying a varying amperage to theforce motor solenoid. The applied amperage can

vary from 0.1 to 1.1 amp. The TCM then monitorsthe amperage at the return line. If the returnamperage is more than 0.2 amp from thecommanded amperage, the DTC is stored.

• The line pressure can vary from less than 50psi tomore than 200 psi. The line pressure variesinversely to the amount of current. High currentcauses low pressure and low current causes highpressure.

line. When the return aamp from the commastored.

• Action after the detectio• Recovery conditions: T

CYCLE.

FORCEMOTORSOLENOID

CONTROL (+)

ECM MAIN RELAY

M-6

M-62(B)

1(E)

C-95

FORCEMOTORSOLENOID

FORCEMOTORSOLENOIDCONTROL (—)

RED/GRN RED/GRN

H-23

8

H-23

5

RED/BLK

BLK

BLK BLK H-25

C16(16)

C1(1)

C15(15)

GROUND

C-96RED/BLU RED/BLU

IGNITIONINPUT A7(7)

A

T

RED/BLK

AUTOMATIC TRANSMISS


connector C-95 and C-96• Connect ohmmeter between connector C-95

terminals C15 and C16.IF: Display is between 3.7 and 4.7 ohms:


FORCE MOTOR OPEN OR SHORT TO PLUS OR GROU



• Connect ohmmeter between connector C-95terminals C15 and C1 (TCM ground) then betweenterminal C15 and connecter C-96 terminal A7 (TCMignition) then between terminals C16 and C1 (TCMground) then between terminals C16 and A7 (TCMignition).

IF: Display indicates a short circuit:

• Disconnect automatic tranconnector M-6.

• Connect ohmmeter betweof female half of the conn

IF: Display between 3.7 and 4

Repair wires for open betweeterminals C15 or C16 and adacase connector.

Replac

Repair the short circuit. The problem isintermittent.GOTO INTERMITTENT

CONDITIONS. • Disconnect soleno• Connect ohmmete

terminals.IF: Display between 3

Repair wires for openbetween adapter caseconnector and solenoconnector.

YES NO

YES

NO YES

YES



SHIFT HIGH SHORT TO GROUND OR OPEN


Circuit Description:• The solenoids are activated by a current. This

current is produced by applying a voltage to one

solenoids (A, B and Bcircuits or open circuits

to 4th, 3rd, 1st, 1st witHSD. Each one of thseconds. If the engine of all tests, the remainin




• The High Side Driver (HSD) is a circuit of the Transmission Control Module (TCM) that acts asa switch between the solenoids and the supply

voltage. The High side of the solenoid ispermanently supplied with voltage, except inBACKUP MODE or when Ignition is OFF the HighSide Driver is turned OFF.

• The TCM continually monitors the solenoidconnection to its High Side Driver for either lowor high voltage.

• There are two tests of the HSD: when the engine

is cranked (DTC82) and when the ignition isturned ON (DTC36).• When the ignition is turned ON, and before the

engine is cranked, the TCM activates the shift

of all tests, the remainin



1 The solenoid Highterminal C12 is shor

2 The test is only don3 Engine Speed < 48



CYCLE.

SHIFTSOLENOIDA

SHIFTSOLENOIDB

M-7

3(D)

4(C)BRN/WHT

YEL/GRN1(A)

BRN/BLK

H-23

H-23

16

6

13

YEL/BLK YEL/BLK

2(B) M

C12(12) 14

A2(2)

A3(3)

A9(9)

C-96

C-95

GROUND

SHIFT &BAND APPLYSOLENOIDCONTROL

YEL/GRN

BRN/BLK

BRN/WHT

AUTOMATIC TRANSMISS


SHIFT HIGH SHORT TO GROUND OR OPEN


connectors C-95 and C-96.• Connect ohmmeter between connector C-95 terminal

C12 and connector C-96 terminal A2 and betweenC12 and A3 and between C12 and A9.

IF: Display is approx 10 ohms for the band apply and 18



• Connect ohmmeter between connector C-95 terminalC12 and C1 (TCM ground).

IF: Short circuit:

• Check for faulty connector orwiring between terminal C12and ground.

• Repair.

The problem is intermittent.GOTO INTERMITTENT CONDITIONS.

ThGOCO

YES

YES

NO

YES NO NO

IF: Display is approx. 10 ohms for the band apply and 18ohms for the other solenoids:

Repair.

• Check for an open circuit bterminal C12 and the othe

IF: Wiring problem?



TORQUE MANAGEMENT SERIAL LINE FAULTY


Circuit Description:• Torque Management is a function that decreases

the engine torque during transmission shifts. To


CYCLE.NOTE:1 When connecting th

connector be sure



g q gdo so the Transmission Control Module (TCM)exchanges information on a wire with the EngineControl Module (ECM) that governs the Engine. This wire is the Data Link Connector which is alsoused by the Scan tool to communicate with the

TCM and the ECM.

Diagnostic Aids:• This Diagnostic is not an electrical test done by

the TCM but a test between different information(“logic test”).

• Detection conditions:1 Torque control failure detected2 Each time a shift occurs with the Torque

Management active, the TCM sends amessage to the ECM. If the ECM does notacknowledge this message, the DTC is stored.

connector, be sure switch.

2 Since the torque information betweenall times, the DTC37the following conditioHowever, this is not a• When the engine

then it is restarted• When the batte

excessively and tagain.

When DTC37 is dconditions, turn off t

the abnormal conditcode.

SERIAL DATA


ENGCONTMOD

(ECM

C-95

C8(8)

E-61

35C2 YEL YEL

Y E L

C-102C-102C-102

C-102

91116

4

DATA LINKBLK

YEL/BLK

GRN

FUSE (EB-12)

D16(32)

DIAGNOSISINPUT

C-102

5

AUTOMATIC TRANSMISS

YES NO


TORQUE MANAGEMENT SERIAL LINE FAULTY

• Peform TECH2 SELF-TEST GOTHROUGH TECH2

CONNECTION.

IF: TECH2 OK:



YES NO

YES NO

YES NO

YES NO


• Disconnect TECH2.• Connect ohmmeter between connector C-102 terminal

4 or 5 and ground.

IF: Display approx. 0 ohms :

• Ignition switch ON.• Connect voltmeter between connector C-102 terminal

16 and 4 or 5.

IF: Display battery voltage:

• Ignition switch OFF.• Connect ohmmeter between connector C-102 terminal

9 and ECM connector E-61 terminal 35.

• Then connect ohmmeter between TCM connector C-95terminal C8 and ECM connector E-61 terminal 35.

IF: Display approx. 0 ohms:

• Check for short between connector C-102 terminal 9

and ground and between connector C-102 terminal 9and B+.IF OK, GOTO TCM MEM-CAL REPLACEMENT.

See TECH2 OPERATOR’S MA

Check wire for open.

Check Engine Control Moduland wire to ECM and wire to and data link connector C-102

Check wire for open.



SOLENOID A SHORT TO PLUS


Circuit Description:• The solenoid A is a simple ON/OFF solenoid

located in the main case valve body. The

• There are two tests of is cranked (DTC82) a


engine is cranked, thesolenoids (A, B and Bi i i i



solenoid is the normally closed-type. In second orthird gear the Transmission Control Module(TCM) energizes the solenoid to open a fluid inletport. When the port is open, fluid pressureactuates the shift valve.


• The High Side Driver (HSD) is a circuit of the TCMthat acts as a switch between the solenoids andthe supply voltage. The High side of the solenoidis permanently supplied with voltage, except inBACKUP MODE or when ignition is OFF the HSDis turned OFF.

• The TCM continually monitors the solenoidconnection to its Low Side Driver (LSD) for eitherlow or high voltage. The LSD is a circuit of the TCM that acts as a switch between the solenoidand ground. When the solenoid is commandedON the TCM is switching the solenoid to ground.

circuits or open circuitsto 4th, 3rd, 1st, 1st witHSD. Each one of thsecond. If the engine is all tests, the remaining



1 The solenoid Low

terminal A2 is short

2 The test is only don

3 Engine Speed < 48

Output Speed =0 R



CYCLE.

SHIFT SHIFT

3(D)

YEL/GRN YEL/GRN1(A)

BRN/BLK

H-23 YEL/BLK YEL/BLK

2(B) M-A2(2)

A3(3)

A9(9)

13

6

16

RED/BLU RED/BLU

GRN

A7(7)

A4(4)BATTERY

ECM MAIN RELAY

BATTERYINPUT

IGNITIONINPUT

C-96

GROUNDBRN/BLK

AUTOMATIC TRANSMISS


SOLENOID A SHORT TO PLUS

• Ignition switch OFF.• Disconnect Transmission Control Module (TCM)

connectors C-95 and C-96.

• Connect ohmmeter between connector C-96terminals A2 and A7 (TCM ignition) then between A2and A4 (TCM battery) then between A2 and C12.

IF: Short circuit:



YES

• Check for faulty connector or wiring betweenterminal A2 and the shorted terminal.

• Repair.

The prGOTO

COND

NO

Repair.

YES

• Connect ohmmeter betweA2 and A9.

IF: Short circuit:

NO



SOLENOID B SHORT TO PLUS


Circuit Description:• The solenoid B is a simple ON/OFF solenoid

located in the main case valve body. Thesolenoid is the normally open type When the

• There are two tests of is cranked (DTC82) a

turned ON (DTC42).• When the ignition is tuengine is cranked, thesolenoids (A, B and Bcircuits or open circuits



solenoid is the normally open-type. When theport is open, fluid pressure actuates the shiftvalve. In first or second gear the TransmissionControl Module (TCM) energizes the solenoid toclose a fluid inlet port.


• The High Side Driver (HSD) is a circuit of the TCMthat acts as a switch between the solenoids andthe supply voltage. The High side of the solenoidis permanently supplied with voltage, except inBACKUP MODE or when ignition is OFF the HSD

is turned OFF.• The TCM continually monitors the solenoid


circuits or open circuitsto 4th, 3rd, 1st, 1st witHSD. Each one of thsecond. If the engine is all tests, the remaining


TCM.• Detection conditions:1 The solenoid Low

terminal A3 shorted2 The test is only don3 Engine Speed < 48



CYCLE.

3(D)

YEL/GRN YEL/GRN1(A)

BRN/BLK


2(B) MA2(2)

A3(3)

A9(9)

13

6

16

RED/BLU RED/BLU

GRN

A7(7)

A4(4)BATTERY

ECM MAIN RELAY

BATTERYINPUT

IGNITIONINPUT

C-96

GROUNDBRN/BLK

AUTOMATIC TRANSMISS


SOLENOID B SHORT TO PLUS


• Disconnect Transmission Control Module (TCM)connectors C-95 and C-96.


IF: Short circuit:



YES


• Repair.

• Connect ohmmeter betweA3 and A9.

IF: Short circuit:

YES

Repair. The proble

GOTO INTCONDITIO

NO

NO



TCC HIGHSHORT TO GROUND


Circuit Description:• The Torque Converter Clutch (TCC) solenoid is a

simple ON/OFF solenoid connected to theadapter case valve body When the solenoid is

• The High Side Driver (Hthat acts as a switch b

the supply voltage. Tsolenoid is used to tbecause the Low side to the ground of the MODE or when ignition



adapter case valve body. When the solenoid isenergized by the Transmission Control Module(TCM), it opens a fluid port. When the port isopen, line pressure actuates the converter clutchcontrol valve which engages the torque converter

clutch by exhausting the fluid. The TCM engagesthe torque converter clutch only when all of thefollowing conditions exist:

1 The transmission is at operating temperature.2 The brake pedal is released.3 The transmission is operating in second, third

or fourth gear.4 The engine is warm (more than 70°C).5 The shift pattern requests TCC apply.6 Shift finished.7 No malfunction which will disable the TCC:

DTC33, DTC55 (only short to ground).• The solenoid is activated by a current. This


MODE or when ignitionturned OFF.

• The TCM continuallyconnection of to its Hlow or high voltage.

• There is only one test the engine is cranked a



1 The solenoid High

terminal C7 is short

2 The condition needseconds after ignitio

• Action after the detecOFF.

• Recovery conditions: TCYCLE.

TORQUECONVERTERCLUTCHSOLENOIDCONTROL

A T

M-64(A)

C-95

TORQUECONVERTERCLUTCHSOLENOID

H-23

12

RED/YEL

C7(7)

RED/YEL

AUTOMATIC TRANSMISS


TCC HIGHSHORT TO GROUND

YES

• Install scan tool: TECH2 GOTHROUGH TECH2 CONNECTION.

IF you have a SCAN TOOL: TECH2 ?

Without TECH2 yo



SHORT TO GROUND?

• Ignition switch OFF. Engine OFF.• Disconnect Transmission Control Module (TCM)

connectors C-95 and C-96.

• Connect a ohmmeter between connector C-95terminal C7 and car ground or with TCM groundterminal C1.

IF: Short circuit:

YES

While driving the car in 2nd, 3rd or 4th gear check if the TCC isslipping or not when the TCC solenoid is commanded ON bythe TCM.

Push F0: DATA LIST:Read TCC state and SLIP value.

y

CASE: DTC 33GOTO DTC33.

The problem is intermittent.GOTO INTERMITTENT CONDITIONS.

The TCC is shorted to ground.

• Check wiring between

CASE: SLIP >20 RPM with TCC =ON

This means that the TCC valveis stuck OFF or the TCCsolenoid connections areshorted to ground.

NO



BAND APPLY SOLENOID SHORT TO PLUS


Circuit Description:• The band apply solenoid is a normally open

solenoid which controls the flow of fluid for brakeband application. The Transmission Control

is turned OFF.• The TCM continually

connection to its Low Slow or high voltage. T TCM that acts as a swand ground. When theON the TCM is switchin



ppModule (TCM) uses Pulse Width Modulation(PWM) and changes the duty cycle to control thesolenoid. The TCM turns the solenoid ON(energized) and OFF (de-energized) at a constant

frequency. The length of time the solenoid isenergized during each ON/OFF cycle is called thepulse width. By varying or “modulating” thepulse width, the solenoid output pressure ischanged. Since the solenoid is normally closed,increasing the pulse width increases the dutycycle and decreases the output pressure. PWMcontrol provides smooth band applicationwithout an accumulator. The band is only applied

in first and second gears.• In the event of an electrical failure (open), the

solenoid regulates at the maximum oil flow (0%duty cycle).


•

The High Side Driver (HSD) is a circuit of the TCMthat acts as a switch between the solenoids andthe supply voltage. The High side of the solenoidis permanently supplied with voltage, except inBACKUP MODE or when ignition is OFF the HSD

• There are two tests of is cranked (DTC82) aturned ON (DTC44).

• When the ignition is tu


Diagnostic Aids:

• This diagnostic is an e TCM.

• Detection conditions:1 The solenoid Low




CYCLE.


A9(9) 16

RED/BLU RED/BLU

GRN

A7(7)

A4(4)

BATTERY

ECM MAIN RELAY

BATTERY

INPUTIGNITIONINPUT

C-96

AUTOMATIC TRANSMISS


BAND APPLY SOLENOID SHORT TO PLUS




IF: Short circuit:



YES


Repair.

NO

• Connect ohmmeter betwebetween A9 and A3.

IF: Short circuit:

YES NO

Repair. Th

GOCO



SHIFT HIGH SHORT TO PLUS


Circuit Description:• The solenoids are activated by a current. This

current is produced by applying a voltage to oneside (the High side) and a ground to the other

solenoids (A, B and Bcircuits or open circuitsto 4th, 3rd, 1st, 1st witHSD. Each one of thsecond. If the engine is all tests, the remaining

Diagnostic Aids:



side (Low side).• The High Side Driver (HSD) is a circuit of the

Transmission Control Module (TCM) that acts asa switch between the solenoids and the supply

voltage. The High side of the solenoid is per-manently supplied with voltage, except inBACKUP MODE or when ignition is OFF the HighSide Driver is turned OFF.

• The TCM continually monitors the solenoidconnection to its High Side Driver for either lowor high voltage.

• There are two tests of the HSD: when the engineis cranked (DTC82) and when the ignition is

turned ON (DTC46).• When the ignition is turned ON, and before the

engine is cranked, the TCM activates the shift


TCM.• Detection conditions:1

The solenoid Highterminal C12 is shor2 The test is only don3 Engine Speed < 48



CYCLE.

SHIFT

SOLENOIDA

SHIFT

SOLENOIDB

3(D)

YEL/GRN YEL/GRN1(A)

BRN/BLK


2(B) MA2(2)

A3(3)

A9(9)

13

6

16

SHIFT &

RED/BLU RED/BLU

GRN

A7(7)

A4(4)BATTERY

ECM MAIN RELAY

BATTERYINPUT

IGNITIONINPUT

C-96

GROUNDBRN/BLK

AUTOMATIC TRANSMISS



• Connect ohmmeter between connector C-95 terminalC12 and connector C-96 terminal A7 (TCM ignition)then between C12 and A4 (TCM battery).

IF: Short circuit:


SHIFT HIGH SHORT TO PLUS



YES

• Check for faulty connector or wiring between

terminal C12 and the shorted terminal.Repair.

NO


GOTO INTERMITTENT COND



ENGINE COOLANT SWITCH SHORT TO GROUND, PLUS O


Circuit Description:• The Engine Coolant Temperature is measured by

a sensor in the coolant system. This informationis used by the Engine Control Module (ECM) forth i Th ECM id th i f ti


the TCM but a test betw(“logic test”).• Detection conditions of 1 Engine seen as cold

open.2 Transmission Oil Te



the engine. The ECM provides the information:Engine Warm to the Transmission ControlModule (TCM) when the ECM measures atemperature higher than 70°C (158°F).

• The information is provided using a wirebetween the ECM terminal 10 and the TCMterminal D14. When the engine is warm the ECMconnects its terminal 10 to ground using a LowSide Driver. When the engine is Cold the ECMlets this wire open and the TCM pulls it up to 5volts.

• When Ignition is ON and Engine is OFF: the ECMalways sends the information “engine cold” even

if the engine is warm. The information is validonly when the engine is ON.

2 Transmission Oil Teor more than 20 mcycle.

3 Detection conditions

least 25 seconds.• Detection conditions of 1 Engine seen as war2 Transmission Oil Te3 Without problem

perature sensor th Temperature senso

4 Detection conditionsleast 6 seconds.


Temperature change present for more than 6

ENGINECOOLANT

TEMPERATUREINPUT

TRANSMISSION

C-95

ENGINECOOLANT

TEMPERATUOUTPUT

ENGINE

10

E-61

6

H-25

BRN BRN

H-25BLK BLK

BLK

7

C1(1)

D1(17)

GROUND

D14(30)

AUTOMATIC TRANSMISS


ENGINE COOLANT SWITCH SHORT TO GROUND, PLUS O

• This DTC can be set when there is no problem atall. This is due to the fact that when the enginestalls the ignition is still ON then Engine ControlModule (ECM) provides a false information:engine cold. The Transmission Control Module(TCM), knowing that the last ignition cyclehappened more than 20 minutes ago, then setsDTC51

• Using the Scan Tool yoF0: ENG. TEMP. SW engine is cold or whe TECH2 should show: Cwarm the TECH2 should

• This DTC is not very imit would not allow the (TCC) to be applied



IF: You see a problem:

DTC51. (TCC) to be applied. economy.

YES

• Check voltage between connector C-95 terminal D14and connector C-95 terminal C1 (TCM ground).

• Ignition switch ON. Engine ON.

Engine warm.IF: Voltage higher than 5 volts:

NO

There is not currently a probGOTO INTERMITTENT COND

YES

• There is a short circuit to voltage.• Repair.

NO

IF: Voltage approx. 5 volts:

YES

• This is an open circuit or the ECMis not sending the correctinformation. See also ECMinformation, Section 6E.

• Repair.

NO

•

•

IF: vol



KICK DOWN ALWAYS ON OR SHORT TO GROUND


Circuit Description:• When the driver presses the accelerator pedal

down fully, the kick down switch closes, sendinga ground signal to the Transmission ControlModule (TCM)

• Detection conditions:1 Kick down switch O

TPS <70%.2 No malfunction: T

ground (DTC21 and 3 The conditions need

1 second.• Action after the det



Module (TCM).• This information is used to do shifts with a high

Engine Speed RPM.• When the kick down switch is closed the Throttle

Position Sensor (TPS) is already at 100%.

Diagnostic Aids:• This diagnostic is not an electrical test done by


Action after the detinformation not taken in

• Recovery conditions: needs to be seen as OF

KICK DOWNSWITCHINPUT


C-96

KICSW

C-94

1

2

C-94

BLU

BLK BLK

BLK

7

H-25C1(1)

C-95

D1(17)

GROUND

BLK

B5(17)

AUTOMATIC TRANSMISS


KICK DOWN ALWAYS ON OR SHORT TO GROUND

IF: DTC 23 Throttle Position Sensor (TPS) connectoropen too:

YES

GOTO DTC 23.

NO

• Ignition switch ON. Engine OFF.



• Accelerator pedal not depressed.

• Connect a voltmeter between connectterminal B5 and connector C-95 termiground).

IF: Display approx. 0 volts:

YES

• Check the wires and connectorand the switch to detect theshort to ground.

• Repair.



MODE SWITCH IN P OR N OR R BAD POSITION


Circuit Description:• The mode switch supplies the Transmission

Control Module (TCM) with information regard-ing the selector lever position: P, R, N, D, 3, 2 orL. The selector lever position is indicated by the


• Detection conditions of1 A/T Input Speed <302 TPS >20%3 Mode Switch =P or 4 No malfunction: T

ground (DTC 21,



state of four ON/OFF contacts. The mode switchis located on one side of the transmission. It is onthe transmission manual shaft and is fixed to themain case.

• The mode switch is also used to provide theinformation P or N to the engine crank wiring. The engine can be cranked only if connector M-25terminal 4(H) is connected to terminal 1(E), whichis connected to ground.

• The mode switch is also used to provide the backup lamp power in reverse. This is the reason whythe mode switch is supplied through a 15A fuse(CB-11). This fuse can burn due to short circuit inthe back up lamp.

• When this fuse is open, the mode switch doesnot work and DTC54 is set.

• The mode position is defined by the shift linkagewhich is a link between the shift lever and themode switch. A bad adjustment of the shift link-age can create a mode switch problem (DTC53).


(DTC13).5 The conditions need

4 seconds.• Action after the detect

assumed for pressurpattern =always in D.

• Recovery Conditions: Tospeed higher than 300than 20% when the mo

• Detection conditions of 1 A/T Output Speed >32 Mode Switch =R3 No malfunction:

Downshift Protectio4 The conditions need

4 seconds.• Action after the detect

assumed for pressurpattern =always in D.

• Recovery conditions: Tospeed higher than 32switch is not R.

AUTOMATIC TRANSMISSIONMODE

SWITCH

CB-1115A

FUSE BOX

M-255(D)

P1P1P1P

WHT

AUTOMATIC TRANSMISS


MODE SWITCH IN P OR N OR R BAD POSITION

IF: DTC 23 Throttle Position Sensor (TPS) connectoropen or DTC 13 Engine speed, DTC 54 Mode switchillegal position exists:

YES NO



GOTO DTC13orDTC23or DTC 54 first.

• Install scan tool GOTHROUGH TECH2 CONNECTION.

• Ignition switch ON. Engine running.

• Selector lever position “P”.• Select F0: DATALIST: “ TOP SIGNAL” or F0: DATA LIST: “AT INP

IF: Display does not change with engine speed or TPS:

YES

DTC 23 or DTC 13 not detectedbut are the reason for thisDTC 53.

GOTO DTC13or DTC23.

NO

• Ignition switch ON• Select F0: DATALIS• Move shift selector

and compare resulIF: all selector pin disp

NO YES

The problem isintermittent. GOTOINTERMITTENT

CONDITIONS.

• Check automatic tradjustment. GOTHSETTING PROCEDU

• Repair.

Table 1

SHIFT SELECTOR POSITION

TECH1 DISPLAY P R N D 3 2 L

SELECTOR PIN A X X X XSELECTOR PIN B X X X X

SELECTOR PIN C X X X X

SELECTOR PIN P X X X X



MODE SWITCH ILLEGAL POSITION


Circuit Description:• The mode switch supplies the Transmission

Control Module (TCM) with information re-garding the selector lever position: P, R, N, D, 3, 2or L. The selector lever position is indicated by

• When this fuse is openot work and DTC54 is s

• The mode position is d

which is a link betweemode switch. A bad linkage can create a(DTC53).

Diagnostic Aids:



the state of four ON/OFF contacts. The modeswitch is located on one side of the transmission.It is on the transmission manual shaft and is fixed

to the main case.• The mode switch is also used to provide the

information P or N to the engine crank wiring. The engine can be cranked only if connector M-25terminal 4(H) is connected to terminal 1(E), whichis connected to ground.

• The mode switch is also used to provide the backup lamp power in reverse. This is the reason whythe mode switch is supplied through a 15A fuse

(CB-11). This fuse can burn due to short circuit inthe back up lamp.


TCM.• Detection conditions:1 Selector Pin A and

active: no position i2 Based upon Table

position the code isshorted to ground.

3 The conditions need5 seconds.

• Action after the detectio•

Recovery conditions: TCYCLE.


MODESWITCH

PIN C

CB-1115A

7(B)2(F) 6(C)

FUSE BOX

M-255(D)

3(G)

4123

8(A)

1

2

D3N

R

P1

2

D3N

R

P1

2

D3N

R

P1

2

D3N

R

P

PIN B PIN A PIN G

WHT

BLU/WHTRED/YEL

BLU/RED BLU BLU/B

PIN F

BACK UPLAMP

AUTOMATIC TRANSMISS


MODE SWITCH ILLEGAL POSITION


• Ignition switch ON. Engine OFF.• Selector F0: DATALIST: “SELECTOR POS”.

• Move shift selector lever through all positions andcompare results with Table 1.

IF: all selector pin displays correct:

YES NO



Table 1

YES NO

The problem is

intermittent.GOTO INTERMITTENT

CONDITIONS.

IF: all selector pin displays

incorrect:

YES NO

• Check fuse and wire to connector M-25terminal 5 (D) for opens.GOTHROUGH MODE SWITCH SETTINGPROCEDURE (PAGE: 7A1-147).If problem not solved, replace modeswitch.

• Disconne25.

• Connect o5(D) and rmode sw

• Move shifpositions Table 1.IF: One se

NO YES

• Check the wire and connector.• Repair.

• Check wi Transmis

• Repair.



BRAKE SWITCH SHORT TO GROUND OR OPEN


Circuit Description:• The brake switch is a switch on the brake pedal

that is used to provide the information: brakesare applied. This is used by different features:cruise control, stop light and TransmissionControl Module (TCM)



• Detection conditions:1 Brake seen as appl

from less than 10 Kwithin 6 seconds.

2 After this accelerati



Control Module (TCM).• The TCM uses the information (brakes applied)

mainly to release the Torque Converter Clutch

(TCC).• The brake switch input is constantly connected to

battery when the pedal is pressed. TCM terminalD9 is connected to Voltage.

• The brake switch input is opened when the pedalis released. TCM terminal D9 is grounded.

2 After this acceleratihigher than 60 Kseconds.

3 No Malfunction: Downshift Protectio4 The conditions need

5 times during an ig• Action after the detecti

the brake is seen as aapplied.

• Recovery conditions: Toreleased.

BRAKE SWINPUT


C-95

H-25BLK BLK

BLK

7

C1(1)

D1(17)

GROUND

D9(25)

RED RED GRNC-44

2

C-44

1STOP LAMP SW

AUTOMATIC TRANSMISS


BRAKE SWITCH SHORT TO GROUND OR OPEN


• Ignition switch ON. Engine ON.• Select F0: DATA LIST: “BRAKE SWITCH”.

• Apply brake.IF: Display is “NOT ACTIVE”:

YES NO



• Check the short circuitto ground or open.

•

Repair.

The problem isintermittent.

GOTO INTERMITTENTCONDITIONS.



BRAKE SWITCH SHORT TO PLUS


Circuit Description:• The brake switch is a switch on the brake pedal

that is used to provide the information: brakesare applied. This is used by different features:cruise control, stop light and TransmissionControl Module (TCM).


the TCM but a test betw

(“logic test”).• Detection conditions:1 Brake seen as relea

from more than 60 within 6 seconds.

2 Before this decelera



Control Module (TCM).• The TCM uses the information (brakes applied)

mainly to release the Torque Converter Clutch

(TCC).• The brake switch input is constantly connected tobattery when the pedal is pressed. TCM terminalD9 is connected to Voltage.

• The brake switch input is opened when the pedalis released. TCM terminal D9 is grounded.

2

was higher than 6seconds.

3 No Malfunction: Downshift Protectio

4 The conditions need5 times during an ig

• Action after the detectithe brake is seen as reeven when the brake is

• Recovery conditions: Toreleased.

BRAKE SWINPUT


C-95

H-25BLK BLK

BLK

7

C1(1)

D1(17)

GROUND

D9(25)

RED RED GRNC-44

2

C-44

1

STOP LAMP SW

AUTOMATIC TRANSMISS


• Ignition switch ON. Engine ON.• Select F0: DATA LIST: “BRAKE SWITCH”.

• Do not touch brake.IF: Display is “NOT ACTIVE”:

YES


BRAKE SWITCH SHORT TO PLUS

NO



The problem isintermittent.

GOTO INTERMITTENTCONDITIONS.

• Check the short circuitto voltage.

•

Repair.



GEAR ERROR


Circuit Description:• The Transmission Control Module (TCM) is

calculating the slippage of the Converter andtransmission based upon the Engine Speed, theOutput Speed and the current gear ratio.

• The slippage of the converter at a high enoughi d i l Th th t i i

3 No malfunction: EOutput Speed (DTC(DTC 62).

4 The last change ofthan 3 seconds ago

5 The conditions need5.5 seconds.




engine speed is low. Then the transmissionshould not slip more than a given value whenthere is no shift.



• Detection conditions:1 Engine Speed >3500 RPM2 Using the ratio of the current gear the

Converter Slippage is calculated based uponthe engine speed and the output speed. Thisslippage must be more than:528 RPM in 4th gear536 RPM in 3rd gear556 RPM in 2nd gear595 RPM in 1st gear

CYCLE.

NOTE:

The TCC slip data is a calaccurate one.This value should be usengaged or not.

AUTOMATIC TRANSMISS


GEAR ERROR

IF the car has been in BACKUP MODE when the problemoccurred:

YES

IF there is another DTC which causes Backup Mode(DTC20, DTC21, DTC22, DTC23, DTC25, DTC26, DTC31,DTC32 DTC34 DTC35 DTC36 DTC37 DTC41 DTC42

NO

IF there is other DTC:



DTC32, DTC34, DTC35, DTC36, DTC37, DTC41, DTC42,DTC44, DTC46, DTC54, DTC63, DTC82):

YES

Verify this other diagnosis first (because,in backup mode the DTC61 is detected inManual 2 at high engine speed thoughthere is no problem). GOTO next DTCs.

YES

Do a test drive to reproproblem using the DR

INFORMATION.

NO GOTO next DTCs.

IF reproduced withoutMode:GOTO TCM MEM-CAL

REPLACEMENT.



DOWNSHIFT PROTECTION


Circuit Description:• The output speed information is used to

determine if the transmission has to upshift ordownshift.

• If this information suddenly changes due to anopen circuit or some electrical interference the

voltage in the magnetcurrent (AC) signal is voltage increases with t

this is not used to definAs the vehicle moves fafaster between positiv The Output speed infothe frequency of the sig

Diagnostic Aids:



transmission would downshift.• To avoid this the Transmission Control Module

(TCM) is constantly checking the variations of theOutput Speed. If this variation is too great (toomuch decrease or increase) DTC62 is set. Thisvariation is taken into amount only when theoutput speed is more than 2900 RPM (approx. 90KPH).

• The transmission output speed sensor providesinformation on vehicle speed to the TCM. Thespeed sensor circuit consists of a magnetic

induction type sensor. The sensor is mountedabove a target wheel pressed on the output shaftin the transmission extension. As the output shaftturns, the target wheel teeth induce a variable



(“logic test”).• Detection conditions:1 Variation of Output

16 KPH)/0.025s.2 Ignition ON more th3 Mode Switch not in 4 Last Output Speed >5 The conditions need

0.1 second.• Action after the detectio• Recovery conditions: T

CYCLE.

A12(12)

C-96

C 95

1

M-15

2

TRANSMISSION SPEEDSENSOR SHIELDS

+

—

OUTPUTSPEEDINPUT

H-23

10

11

9

PNK

B11(23)

B12(24)

PNK

BLUBLU

AUTOMATIC TRANSMISS


DOWNSHIFT PROTECTION

If the DTC 53 is set:

CAUTION: If wire to connector C-96terminal B12 is short to voltage,Transmission Control Module (TCM) will be damaged.

YES

GOTHROUGH DTC53first and do a test drive

NO

If you have a SCAN TOOL: TECH2?



GOTHROUGH DTC53first and do a test drive. If you have a SCAN TOOL: TECH2?

YES

• Raise drive wheels.

• Connect the TECH2 GOTHROUGH TECH2

CONNECTION.

• Push F0: DATA LIST: DISPLAY. Read “ATOUTPUT SPEED”.

IF: Output speed different from 0 RPM when thewheels are turning:

NO

YES NO

Problem is intermittent.GOTO INTERMITTENT

CONDITIONS.

GOTO DTC 11: OUTPUFAILURE:Diagnostic Aids.


• Disconnect TCM connector C-95 and C-96.• Connect ohmmeter between connector C-96 terminals AIF: Display is approx. 3K ohms:

NO

• Disconnect transmiconnector M-15.

• Connect ohmmeter 2 f th d

• Connect ohmmeter between connector C-96 terminalA12 and ground connector C-95 terminal C1.

IF: Display indicates an open circuit:

YES


CONTINUED FROMPREVIOUS PAGE

A


DOWNSHIFT PROTECTION(CONTINUED)

HINT:• The wire between connector C-96 terminal B12 and

speed sensor connector M-15 terminal 2 can beshorted to ground or open without creating aproblem because the TCM B12 pin is connected tothe TCM ground iternally and the signal is detected



the TCM ground iternally and the signal is detectedonly on the A12 input.

• Check wire for a short to ground between terminal

A12 and sensor connector M -15 terminal 1.IF: Display indicates a short circuit:

YES

Repair.

NO

• Connect voltmeter between connector C-96terminal A12 and ground connector C-95

terminal C1.• Ignition switch ON.IF: Display indicates approximately 0 volt:

YES NO

• Check for faulty TCMconnectors. If OK GOTOTCM MEM-CAL

REPLACEMENT.

• Check wire foto voltage beterminal A12 sensor conne

AUTOMATIC TRANSMISS


EPROM CSUM FAILURE


Circuit Description:• The Erasable Programmable Read Only Memory

(EPROM) is an electronic circuit that contains thecommands that control the Transmission ControlModule (TCM).

• The EPROM content is checked automaticallyapprox each second by the TCM This is called



(“logic test”).• Detection conditions:1 Bad EPROM Check S2 The condition needs

approx. 1 second.• Action after the detectio• Recovery conditions: To



approx. each second by the TCM. This is calledCheck Sum (CSUM) calculation. If this CSUM isfalse this means that one command is altered.

• This can be due to a circuit failure or a badcontact between the EPROM and the TCM andthe DTC63 will be set.

• If all EPROM connections are bad, the TCM doesnot work. The CSUM can not be calculated anddetected. Nothing works, not even the CHECK TRANS indicator.

Recovery conditions: ToCYCLE.

To Solve the Problem• Check the EPROM MEM• If condition still exists, r



SHIFT OR BAND APPLY SOLENOIDS FAULTY DURING DR


Circuit Description:• The shift solenoids are simple ON/OFF solenoids

located in the main case valve body. Thesolenoids are normally closed or open-type.Depending on gear the Transmission ControlModule (TCM) controls the solenoids to open orclose a fluid inlet port When the port is open

The TCM continually connection to its Low SSide Driver for either lo

• DTC82 is activated wDriver or one of thesenses a short circuit engine is cranked, theDTC82 can be set activating the solenocircuit.



close a fluid inlet port. When the port is open,fluid pressure actuates the shift valve.


• The High Side Driver (HSD) is a circuit of the TCMthat acts as a switch between the solenoids andthe supply voltage. The High side of the solenoidis permanently supplied with voltage, except inBACKUP MODE or when Ignition is OFF the High

Side Driver is turned OFF.• The Low Side Driver (LSD) is a circuit of the TCM

that acts as a switch between the solenoid andground. When the solenoid is commanded ONthe TCM is switching the solenoid to ground.

• To know where theIGNITION CYCLE to us

solenoids when EngiIgnition ON.


TCM.• Detection conditions:1 HSD or LSD is impro2 The condition need

0.15 second.• Action after the detectio• Recovery conditions:

IGNITION CYCLE.

AUTOMATIC TRANSMISS


SHIFT OR BAND APPLY SOLENOIDS FAULTY DURING DR

This DTC is set when the car is driven (Engine ON) butthe diagnostic is not specific. To correctly identify the problem, do an IGNITION

CYCLE.

If you have not already done an IGNITION CYCLE:

• Turn ignition switch OFF. Turn ignition switch ONand wait 3 seconds to have the specific diagnosticdone.Th h i ON



• Then you can turn the engine ON or not.

Check on Scan Tool or Flashing Code what other DTC isprovided. It should be one of the following:DTC31 or DTC32 or DTC34 or DTC36 or DTC41 or DTC42or DTC44 or DTC46.

GOTO this DTC.


WITHOUT DTC SET

1. If you have already checked the Diagnostic Trouble Code (DTC) and the scan tool TECH2does not provide any DTC, and you havereproduced the problem and no DTC wasstored:

This means that you have to check the problemby comparing the way it should work to theway it works now that the problem exits.

2. To find the problem, perform the followingtests:• Transmission Operating Mode Test



AUTOMATIC TRANSMISS

TRANSMISSION OPERATING MODE TEST


The Transmission Control Module (TCM) cancontrols 4L30-E operation in two modes: Powermode, and Normal mode. The driver determines

the transmission operating mode through thePower/Normal mode switch. The Power mode provides better part-throttle ac-celeration by providing earlier part-throttle upshifts.



METER

BLK

FUSE BOXCB-515A

B-242 H-268

POWERMODEINDICATOR

B8(20)

POWER MODEINDICATORCONTROL

POWER MODEENABLE INPUT

B9(21) C-9

C-9

2 C-9

1 C-98

HOT IN ON OR START

RED/WHT

GRN

B-23

RED/WHT

6


TRANSMISSION OPERATING MODE TEST

IF: When you operated the Power Switch the indicatorturned ON:

YES NO

No Problem. • Install scan tool GOTHROUGH TECH2

• Ignition switch ON.

• Select F0: DATA LIST: POWER SWITCDoes TECH2 display “INACTIVE”?



YES NO

• Check wire for short to ground betwe Transmission Control Module (TCM) terminal B8 and the Power Switch.

IF OK, replace the Power Switch.

• Press and hold down the Power Switch.Does TECH2 display “ACTIVE”?

YES

• Check wire for open between TCM connector C-96terminal B8 and the Power Switch.

IF OK, replace the Powe Switch.

NO

The Power Switch isworking normally.

• Selector lever in Park.Does Power mode indicator stayon all the time?

YES NO

• Check wire for short to groundbetween TCM connector andindicator (SEE SCHEMATIC).

IF OK, GOTO TCM MEM-CAL

REPLACEMENT.

• Select F5: ACTUATOR TEST:CHECK POWER LAMP?”

• Press YES.Does Power Mode Indicator light?

YES NO

AUTOMATIC TRANSMISS

TCMPRECAUTONS

The TCM can be damaged by:(1) The Electrostatic discharge(2) The short circuit of some terminals to voltage

or to ground.

Electrostatic Discharge Damage Description:(1) Electronic components used to control systemsare often designed to carry very low voltage,and are very susceptible to damage caused byelectrostatic discharge. It is possible for lessthan 100 volts of static electricity to causedamage to some electronic components. Bycomparison it takes as much as 4000 volts for

(2) The TCM must be mbelow 185°F (85°C) essential if the vehicbaking process. Thoperative if its tem(185°F). Therefore, it TCM be removed or be placed around thevehicle is in a patemperature process

(3) The TCM is designeinputs and then r



comparison, it takes as much as 4000 volts fora person to even feel the zap of a static

discharge.(2) There are several ways for a person to become

statically charged. The most common methodsof charging are by friction and induction. Anexample of charging by friction is a personsliding across a car seat, in which a charge of as much as 25,000 volts can build up.Charging by induction occurs when a personwith well insulated shoes stands near a highly

charged object and momentarily touchesground. Charges for the same polarity aredrained off, leaving the person highly chargedwith the opposite polarity. Static charges of either type can cause damage, therefore, it isimportant to use care when handling andtesting electronic components.

NOTICE: To prevent possible Electrostatic

Discharge damage:(1) Do not touch the TCM connector pins or

soldered components on the TCM circuitboard.

(2) When handling a Mem-Cal (PROM), do nottouch the component leads, and do notremove integrated circuit from carrier.

(3) Be sure to follow the guidelines listed below if servicing any of these electronic components:

(4) Do not open the replacement part packageuntil it is time to install the part.

(5) Avoid touching electrical terminals of the part.

pappropriate electrica

mission upshift, dotorque converter clut(4) The TCM constant

from the various sesystems that affect performance. By anlems, the TCM is ablfunction by displaytechnician in making

PROM/MEM-CAL:(1) Information for a spe

programmed using aa Programmable ReIt is also called a brator). This allows obe used for many diffis located inside the

on the engine, transWhile one TCM partmany vehicle lines, and must be used onFor this reason, it isthe latest parts boinformation for the creplacing a PROM.


INTERMITTENT CONDITIONS

If the TECH2 displays a diagnostic trouble code asintermittent, or if after a test drive a DTC does notreappear though the detection conditions for thisDTC are present: the problem is most likely a faultyelectrical connection or loose wiring. Terminals andgrounds should always be the prime suspect.Intermittents rarely occur inside sophisticatedelectronic components such as the TCM.

Use the DTC information to understand which wiresand sensors are involved.

When an intermittent problem is encountered,check suspect circuits for:

Use the F3: SNAPSHOT misolate the cause of asnapshot mode will recoafter the problem occu“trigger” on the suspect reported symptom durinsnapshot manually.(1) NOTE: When TECH2

always done at the means that if you doyou will notice firm s

After the snapshot has b



check suspect circuits for:(1) Poor terminal to wire connection.(2) Terminals not fully seated in the connector

body (backed out).(3) Improperly formed or damaged terminals.(4) Loose, dirty, or corroded ground connections:

HINT: Any time you have an intermittent inmore than one circuit, check whether the circuitsshare a common ground connection.

(5) Pinched or damaged wires.

(6) Electro-Magnetic Interference (EMI):HINT: Check that all wires are properly routedaway from spark plug wires, distributor wires,coil, and generator. Also check for improperlyinstalled electrical options, such as lights, 2-wayradios, etc.

After the snapshot has bthe TECH2 to play back

from each of the variointermittent fault in a sunexplainable jump in normal range.

CASE: problem still not CAL REPLACEMENT.

AUTOMATIC TRANSMISS

TCM MEM-CAL REPLACEM(TCM: Transmission Control Mod

1. MEM-CAL (Memory and CaInformation for specific tranprogrammed using an integMEM-CAL.

This allows one model of comany different vehicles. The MEM-CAL is located insinformation on the transmisseveral others.

2. MEM-CAL ReplacementIf the diagnostic procedures



g preplacement, the MEM-CAL

the following procedures.NOTE:The ignition must be “OFF”reconnecting the TCM conndamage to the TCM.

NOTE:To prevent possible Electrosto the TCM, do not touch th

soldered components on th

MEM-CAL Replacement Procedu1. Remove TCM from pass

(1) Disconnect negative (2) Remove connectors (3) Remove TCM from p(4) Remove MEM-CAL a

NOTE:Do not remove any of the o

TCMAccesscover

('96&'97)


3. Check new MEM-CAL• Check the part numb

to make sure it is the

4. Install new MEM-CAL(1) Small notches in the

aligned with small n

socket.

MEM-CAL MEM-CAL SOCKET



(2) Gently press down oCAL until the clips arclick.

5. Install TCM to passenge

(1) Install MEM-CAL acc(2) Install TCM to passe(3) Connect TCM conne

(4) Connect negative (–)(5) Do an IGNITION CYCCHECK TRANS indic

PRESS DOWN

AUTOMATIC TRANSMISS

MEMO




WIRING DIAGRAM

P-1

P-5

5 B

3 0 B

+

_

B2

OFF

IG2

ACC

STARTER SW

B1

ST

IG1

1

33B/R

3B/Y

3B/R

3R/G

3B/YP-11

8B/R

EB-16100A MAIN

3W

3W/B

EB-1740AIGN B-2

EB-1540AIGN B-1

P-10 P-8 P-7

5B

ENG BODY FRAME

EB-1010A STOP LIGHT

EB-1420A ECM

EB-1210A TCM

2W

0.5G

H-7

6

4

C-41

C-41 H-7

C-41

8

6

C-41



D A T A L I N K

C O N N E C T O

R ( 1 6 )

S T O P L I G H T S W

S T O P L A M P

0 . 5

R

0 . 5

R

T C M

E-61E-61

ECM

E-61

0 . 5

G

C-96

0.8

0.

0.

27263935

0 . 5

R / W

C-96

6

B-23

P O W E R

A4 B9

0 . 3

R / W

C-95

0 . 5

B / R

E C M ( B 1 2

)

D12

H-20

0 . 5

B / R

6

T A C H O M E T E R

H-6

16 0 . 5

B / R

C-95

D14

E C M ( B 1 0

)

0 . 5

B R

C-95

C1

0 . 5

B

C-95

D1

H-25

0 . 8

5 B

7

L I N K C O N N E C

T O R

C-102

11

F U S E S T O P

C-102

9

C-102

4

C-102

5

E-61

C-95

C8

0 . 5

Y

0.5Y

0 . 5

Y

8

1

3217128 30

8

214 25

H-26

C-102

16

C-95

0 . 5

Y / B

D16

1

B-44

C-44

2

C-95

D9

H-25

H-25

6

AUTOMATIC TRANSMISS

0.85W 0.85W 0.75W

2

H-6

8

H-22



M-25

5

0 . 7

5 R / L

0 . 8

5 R / Y

0 . 8

5 R / Y

0 . 8

5 R / Y

1 . 2

5 B R / L

0 . 5

B R / L

M -25 M -25

2

24 23 22

8 7

C-95 C-95

0 . 5

L / R

0 . 5 L / R

0 . 5

L

0

. 5 L

MODE

C-95

R E L A Y : A / C C

O M P R E S S O R ( 4 )

B A C K L A M P

M-25

D8 D7 D6

C-96

0 . 5 G

/ Y R E L A Y ; T A I L ( 4 )

B8 B6

H-2

C-96

H-23

C-95

14

H-23

13

H-23

16

R / B/ W

/G/ B

C-96C-96

H-23

0 . 5

R / B

0 . 5

Y / B

0 . 5

Y / G

0 . 5

B R / W

0 . 5

B R / B

8

/ B

C-95

H-23

0 . 8

5 R / G

5

/ G

C-95

H-38

2

C-96

H-38

1

C-95

H-23

0 . 5

R / Y

0 . 5

L

0 . 5

G R

12

/ Y L R

C-95

C7 C14 B3 C16 C15 A9 A2 C12 A3

C-94

1

N S W

17 20 7 14 15 16 15 9 2 12

C-96

0 . 5

L

B5

H-22

12

H-6

12

H-15

4

H-17

1

H-23

1

H-23

2


CONNECTOR LOCATION



RELAY & FUSE BOX(X-18)

H-26

P-11

C-2

C-41

E-60E-61 C-36

H-20H-25

C-98

M-6

M-7

M-25H-15

E-74E-72

E-68

C-94

C-102

H-17

H-6H-7

B-23B-24

C-95C-96

H-22H-23H-38

AUTOMATIC TRANSMISS

CONNECTOR LIST

No. Connector face No. Conn

B-23

B-24

E-61

C-68

16151413121110987654321

987654321 16151413121110

2 4 6 8 10121416182022242628303234363840

1 3 5 7 9111315171921232527293133353739

1 2 3



C-41

C-44

C-94

C-95

C-96

C-98

E-69

H-6

H-7

H-20

H-22

H-23

1 2 3 4

5 6 7 8

1 2

1

2

C1 C2C3C4C5C6C7 C8 C9C10C11C12C13C14C15C16

D1 D2 D3 D4 D5 D6D7D8D9D10D11D12D13D14D15D16

A1

B1

A2

B2

A3

B3

A4

B4

A5

B5

A6

B6

A7

B7

A8

B8

A9

B9

A10

B10

A11

B11

A12

B12

1 2

1234

56781 2

1 2 3 4 5

1112131415

6 7 8 910

181920212216 17

1

3 4 5 6

2

1 2 3 4

5 6 7 8

9 10 11 12

13 14 15 16

1 2 3 4

5 6 7 8

9 10 11 12

1 2 3 4

5 6 7 8


CONNECTOR LIST

No. Connector face No. Conn

H-38

M-6

12

1

3

5

2

4

1 2



M-7

M-15

M-25

X-18

2 1

4 3

1 2

2 3

6 75 8

1 4

1

2

3 4 5

AUTOMATIC TRANSMIS

SELECTOR LEVER

INSPECTION

1) Make sure that when the sshifted from “P” to “L”, a “each shift position. Make scorresponds to that of the

2) Check to see if the shifter lshown.

ON-VEHICLE SERVICE



2. Selector Lever Assembly1) Disconnect shift lock ca

assembly side.2) Disconnect wiring harn3) Disconnect shift contro

lever assembly side.

Shift lock cable

4) Remove selector lever

REMOVAL

Preparation:Disconnect negative (–) ba

1. Front ConsoleDisconnect wiring harness

745LW001

256RV012

7A1 – 146 AUTOMATIC TRANSMISSION (4L30-E)

INSTALLATION

To install, follow the removal snoting the following points;

Adjustment of select lever a

(1) Place the vehicle on a leveNOTE:If the vehicle is not on a lecable set positions will vathe engine. To prevent pocable, the vehicle must be

(2) Install the shift control rodselect lever (2), and then p

3

4

2



select lever (2), and then p

position.(3) Set select lever in the “N” (4) Push select lever forward

rubber band (3), etc.) so thwith the wall of detent plat

(5) Install the shift control rodarm (4).

Nut Torque

32 (3.3

NOTE:Do not apply to threaded

(6) After adjustment, make suoperates normally, and thaproperly indicated. (The rewindow.)

12

Adjustment of shift lock c1) Set IGN key in “LOCK”

in “P” position.2) Adjust cable screw cap

provide a gap (slack fobetween rod on steerinAdjust cap as follows:1 Pull screw cap in ar

inner cable slack.

5 m m

2

31

256RW014

256RW015

AUTOMATIC TRANSMIS

2 With cable kept as1(1) and bracket to 5

3 Lock inner cable byholding nut (1) in p

Lock Nut Torque

4 (39 /

NOTE:Clean the rod threads and

3) Check the shift lock op1 Selector lever shall

position with ignitio2 Selector lever can b



2 Selector lever can b

position with ignitioonly when brake pe

3 Ignition key can beonly when selector(key can be pulled o

If1 and3 fail, readjusconnector wiring and b

MODE SWITCHREMOVAL

Preparation:• Disconnect negative (–) ba1. Place selector lever in neu2. Disconnect battery ground3. Remove mode switch cove

4. Disconnect selector lever (5 Disconnect transmission hswitch connector (3).

6 Remove bracket with modthe transmission case.

7. Remove mode switch conn(4).

8. Remove two mode switch mode switch(5).

34

2

51

210RW008


INSTALLATION


1. Mode Switch Bolt Torque

13 (130 /

Selector Lever Nut Torque

23 (2.3

2. Mode switch setting procePerform either of the followprocedures:Procedure1



a. Place selector lever in b. Remove selector lever c. Remove the mode swid. Loosen the two 10 mme. Rotate the mode switc

switch housing aligns wbushing, and insert a 3punch (1) into the slot.

f. Tighten the screws to g. After completing adjus

switch cover into placeh. Reinstall the selector leProcedure2a. Place selector lever in b. Disconnect transmissio

mode switch connectoc. Remove mode switch

from the transmission d. Connect multimeter (reterminals 1(E) and 4(Hconnector.

e. Loosen two mounting f. Rotate mode switch sl

determine the range (aelectrical contact.

g. Position mode switch i

h. Tighten two mountingI. Remove multimeter an

harness connector with

1

249RW001

Mode switch connector

5 (D) 8 (A)

6 (C)

3 (G)4 (H)

7 (B)

2 (F)1 (E)

F07RW003

AUTOMATIC TRANSMIS

4

3

12

TRANSMISSION



13

6

8

10

9

7

5

7A1– 150 AUTOMATIC TRANSMISSION (4L30-E)

REMOVAL

Preparation:• Remove engine hood.• Disconnect negative (–)

1. Exhaust Pipe

1) Remove catalytic convfront pipe.

2) Disconnect O2 sensor ctransmission harness c

2. Rear Propeller Shaft1) Disconnect shift contro

lever assembly side.



2) Disconnect rear propel

3. Fuel PipeDisconnect two fuel pipe ctransmission case eight si

256LW004

401LW001

AUTOMATIC TRANSMIS

5. Heat Protector

6. Harness Connector1) Disconnect transmissio

transmission side conn

815LW001



2) Disconnect harness claside.

7. Starter

8. Flywheel Under CoverRemove flywheel under cotransmission case.

9. Flywheel – Torque ConverRemove flywheel torque cpieces) by turning cranksh

210LW001


INSTALLATION


13. Transmission AssemblySlowly raise transmission

transmission is aligned wi12. Engine-Transmission Bolt

Tighten engine-transmissitorque (see next page).

11. 3rd Crossmember

3rd Crossmember Bolt Tor

50 (5.1



10 Rear Mount Nut

Rear Mount Nut Torque

41 (4.2

9. Flywheel-Torque Converte1) Align the flywheel-torq

the starter portion of th

turning torque convert2) Install new flywheel-topieces) by turning cran

NOTE:Do not reuse the flywheel

Flywheel-Torque ConverteBolt Torque

55 (5.6

8. Flywheel Under Cover

Flywheel Under CoverBolt Torque

8 (80 /

7. StarterStarter Bolt Torque

40 (4.1

210LW002

AUTOMATIC TRANSMIS

Clip;breather hose

45

50

21 27 2.5

76(7.76(7.7/56)

76(7.7/56)Cylinder block

T/M case

21 27 1.2

45

Cylinder blockT/M case

21 27

Engine-Transmission Bolt Torque



(6places)


Bracket;fuel pipe


Under cove

Crank case

8(0.8/68(0.8/69lb in)

8(0.8/69lb in)40(4.1/30)

76(7.7/56)

70

32 20

40

50

10Cy

25 3

Crank caseT/M case

25 20

T/M case

0.9 20

Under cover

10

T/M case

0.9 20

Under cover

10

0.9 11


5. Heat Protector

Heater Protector Bolt Torq

6 (60 /

4. ATF Oil Cooler Pipe1) Install ATF oil cooler p

ATF Oil Cooler Pipe Nut To

815LW001



54 (5.5

2) Install oil pipe clamp bcase.

3) Tighten oil pipe clamp

3. Fuel PipeConnect fuel pipe bracket

2. Rear Propeller ShaftConnect shift control rod to

Propeller Shaft Bolt Torqu

63 (6.4

1. Exhaust Pipe

Exhaust Pipe Bolt Torque

253LW002

141LW001

AUTOMATIC TRANSMIS

SOLENOID VALVE(MAIN CASE VALVE BODY

REMOVAL

Preparation:

• Disconnect negative (–) • Drain fluid.

Refer to “SERVICING” oINFORMATION (Section

• Remove exhaust pipe ansensor connector.

• Support transmission cathird crossmember.

1 MainCaseOilPan



1. Main Case Oil PanRemove sixteen 10 mm scmagnet, and gasket.

2. Oil FilterRemove three 13 mm scre

3. Wiring HarnessDisconnect wiring harnesssolenoid, shift solenoids. Pon wiring harness.

4. Spring PinRemove spring pin for shifB, and band control solenosuitable pliers taking care

210RW010


INSTALLATION


5. SolenoidsInstall 1shift solenoid A, sh

solenoid with new gasketsrespectively.

4. Spring PinCarefully install spring pindamage to valve body etc.

3. Wiring HarnessConnect wiring harness to

2. Oil Filter

Install oil filter with new ga



Install oil filter with new gaOil Filter Bolt Torque

20 (2.0

1. Main Case Oil PanInstall magnet, main case sixteen 10 mm screws

Main Case Oil Pan Bolt To

11 (110

• Install third crossmemb

Rear Mount Nut Torque

41 (4.2

Third Crossmember Bolt T

50 (5.1 • Install exhaust pipe and

connector.

Exhaust Pipe Flange Bolt T

43 (4.4

• Refill the transmission wRefer to “SERVICING” o

INFORMATION (Section • Connect negative (–) ba

243RW004

AUTOMATIC TRANSMIS

SOLENOID VALVE(ADAPTER CASE VALVE B

REMOVAL

Preparation:

• Disconnect negative (–) • Drain fluid.


• Remove exhaust pipe ansensor connector.

1. Adapter Case Oil Pan

Remove twelve 10 mm scrand gasket



Remove twelve 10 mm scrand gasket.

2. Wiring HarnessDisconnect wiring harnessconverter clutch solenoid. not on wiring harness.

3. Solenoid• Remove 11 mm bolt and

with two O-rings.

• Remove 11 mm bolt, retsolenoid.

210RW011

210RW009


2) Install converter clutch3) Tighten 11 mm conver

adapter case valve bod

Converter Clutch Solenoid

Bolt Torque

10 (100

2. Wiring HarnessConnect wiring harness as

1. Adapter Case Oil PanInstall adapter case oil pan10 mm screws.

Adapter Case Oil Pan

Bolt Torque

(



11 (110

• Install exhaust pipe andconnector.

Exhaust Pipe Flange Bolt T

43 (4.4

• Refill the transmission w


• Connect negative (–) ba

AUTOMATIC TRANSMIS

UNIT REPAIR

TRANSMISSION (4L30-E)

2. O-ring

1. Torque converter



6. Adapter casevalve body

5. Wiring harness

4. Adapter caseil

12.Main case valve body


DISASSEMBLY

During the disassembly and recomponents, perform the follo• Wash each part thoroughl

each oil passage and groo•

Seal rings, roll pins and gawith new parts.• When assembling the com

III Automatic transmissionpart and sliding part.

• Do not dip those parts havplate for clutch or brake, init with solvent.Also, always wash it with n

after cleaning with solvent



g

1. Torque Converter1) Drain fluid from torque2) Attach holding fixture

it on holding fixture ba

Holding fixture: 5-8840Fixture base: 5-8840-00

NOTE:Do not overtighten the tooresult.

2. O-RingRemove O-ring from turbi

3. Mode Switch1) Remove two 10mm sc

switch.

4. Adapter Case Oil Pan1) Remove twelve 10mm

and gasket.

5. Wiring Harness1) Disconnect electrical co

Pull on connectors only

6. Adapter Case Valve Body1) Remove seven 13mm s

body assembly transfe

5-8840-0003-05-8840-2278-0

420RW019

AUTOMATIC TRANSMIS

10. Wiring Harness1) Disconnect harness as

solenoid, shift solenoidconnector.

2) Remove 4 pin connecto

11. Servo Cover

Remove four 13mm screw12. Main Case Valve Body and

1) Remove seven 13mm v2) Remove ground wire f3) Remove main valve bo

valve link and transfer

NOTE:Note the position of link, w

short end, into range selec3) R k t t f



g3) Remove gasket transfe4) Remove two check bal

13. Servo Piston1) Turn transmission to v

fluid. Return back to hodrained.

2) Install servo piston spr

to the rear of case.3) Compress servo piston4) Remove servo piston r5) Slowly release servo p6) Remove tool.7) Remove servo piston a

and servo apply rod.

Servo piston spring co

14. Speed Sensor1) Rotate transmission to

side down.2) Remove one 10mm sc

O-ring.

15. Extension Housing and Fla1) Remove seven 8mm h

15.Wheel parking lock

Seal ring


16. Converter Housing and Oi1) Rotate transmission to

housing up.2) Loosen, but not remov

if oil pump disassembl3) Remove seven outer sc

4) Remove converter houassembly.5) Remove gasket.6) Remove selective thru



17. Fourth Clutch RetainerRemove fourth clutch reta

18. Turbine Shaft and Clutch Grasp turbine shaft and lifhousing assembly and fou

19. Thrust Bearing Assembly

Remove thrust bearing as20. Overdrive Internal Gear

Remove overdrive interna

21. Thrust WasherRemove thrust washer.

AUTOMATIC TRANSMIS




23. Fourth Clutch Spring Reta1) Compress the fourth c

springs.2) Release snap ring from3) Remove clutch compre4) Remove retainer and s

Compressor: 5-8840-05-8840-2

24. Fourth Clutch Piston1) Insert two converter ho

hold adapter case whilpiston.

2) Remove fourth clutch 3) Remove converter hou

25. Second and Third Clutch A1) Grasp intermediate sh

d d thi d l t



second and third clutcreverse clutch plates wshaft.

2) Separate 2nd and 3rd c3) Remove thrust washer4) Remove reverse clutch

pressure plate.

26. Planetary Carrier Assembl1) Remove bearing and w2) Remove planetary carr3) Remove thrust bearing

27. Reaction Sun Gear1) Remove reaction sun g2) Remove needle bearin

28. Brake DrumRemove brake drum.

29. Brake Band1) Remove brake band.2) Remove thrust bearing

30. Parking Lock and Selector1) Rotate case to horizont

facing up.2) Remove spring pin, us

NOTE:Insert wire in the center ofit from collapsing during r

AUTOMATIC TRANSMIS

REASSEMBLY

30. Parking Lock and Selector1) Inspect selector shaft s

NOTE:Use a seal installer when r

2) Install selector shaft.

NOTE:Spring pin groove must becase.

3) Install spring pin. Be sumove freely.Do not push the pin fluLeave enough height fo

4) Install actuator assemb5) Install parking lock and



5) Install parking lock andnew 17 mm nut.

Selector Lever Nut Torque

22 (2.2 /




AUTOMATIC TRANSMIS

3) Install thrust bearing.

NOTE:The case bushing acts as abearing.

28. Brake DrumInstall brake drum.

27. Reaction Sun Gear1) Install reaction sun gea2) Install needle bearing.

26. Planetary Carrier Assembl1) Inspect planetary carrie

damage, if necessary r2) Measure pinion end pl

feeler gage.

Planetary Carrier Pinion En



Standard

If clearance is outside splanetary carrier assem

3) Install the thrust bearin

NOTE:Use petroleum jelly to hold

place.

4) Align planetary pinionsmarked with double potooth space and exactlypoint to indicate the mon the planetary carriewhich are to be lined-uon two opposite pinion

lined-up with the singlepinions.

5) After all four pinions aclutch assembly. Rotatmark alignment. Considtooth between the doupinion is tooth number that the single points oare between teeth 23 a

that the ring gear toothpoints of the opposite If it i t


25. Second and Third Clutch A1) Carefully align second 2) Install thrust washer, ta

locating tang positionehub.

NOTE:

Use petroleum jelly to hold3) Install third clutch and

assembly into the seco4) Install second and third

main case. Twist outpuassemblies to insure p

5) Install pressure plate wvalve body face.

6) Install reverse clutch pplate and alternate wit

7) I t ll d l t h l



7) Install waved clutch plabody side.

5-8840-2262-0

Second clutch end play m1) Install the gaging tool

against the intermedia2) Position the inner shaf

the thrust surface of th3) Tighten thumb screw. 4) Fit the spacer ring on t5) Measure gap (“G”). Se

washer as the chart sp

Selective washer gaging to

247RW007

AUTOMATIC TRANSMIS

17. Fourth clutch retainer

18. Fourth clutch plates

18. Turbine shaft and overrun clutch

Turbine shaft

Turbine shaft oil seal ringOverrun c

Ratainer andball assembly



2. O-ring

Overrun clutch relasespring retainer

Roller clutch

Snap ringSun gear

Clutch plate

Backing plate

Snap ring

ODcarrier assembly

20.

Diaphragm spring

Overrun roller clutch cam

24. Fourth clutch piston

19. Thbe


24. Fourth Clutch Piston1) Inspect piston seals an2) Lubricate fitter and ins3) Install fourth clutch pis4) Remove fitter.

Fourth clutch piston fit



23. Fourth Clutch Spring Reta1) Install retainer and spr2) Install snap ring in ada3) Install compressor.4) Compress retainer and5) Seat snap ring in groo

6) Remove compressor.Fourth clutch spring comp(J -23327) and 5-8840-2263

22. Adapter Case and Center 1) Install selective washe2) Install two O-ring seals

case/main case seal rin3) Install guide pins.

4) Install adapter case coGuide pin: 5-8840-2268-0 (

AUTOMATIC TRANSMIS

21. Thrust WasherInstall thrust washer into apointing downwards.

20. Overdrive Internal Gear

19. Thrust Bearing Assembly

18. Turbine Shaft and Fourth

1) Preassemble overdrivebearing assembly ontoassembly complete.

NOTEInstall bearing assembly, bpetroleum jelly to keep as

2) Complete overdrive caassembly into adapter

3) Install fourth clutch plaSteel, Lined, Steel, Ste

i ith h t t f



go in with short tang fasurface.

17. Fourth Clutch RetainerInstall fourth clutch retaineNotch facing up and positisurface.


OD clutch end play measu

1) Install the tool on the aagainst the input shaft

2) Position the inner shafthrust surface of the ov

3) Tighten thumb screw. 4) Measure gap “G”. Seleas the chart specifies.

5) Set selective thrust wa

Selective washer gaging to



Selective Thrust Washer

DIM. “G” mm(in) Color

1.53 - 1.63 (0.060 - 0.064) YELLOW1.72 - 1.82 (0.068 - 0.072) RED

1.91 - 2.01 (0.075 - 0.079) BLACK 2.10 - 2.20 (0.083 - 0.087) NATURAL2.29 - 2.39 (0.090 - 0.094) GREEN2.48 - 2.58 (0.098 - 0.102) BLUE

FOLLOWING THE PROCEDURE SHOULDRESULT IN FINAL END-PLAY FROM0.1 mm TO 0.8 mm (0.004” TO 0.03”)

AUTOMATIC TRANSMIS

16. Converter Housing and Oi1) Install outer seal ring a2) Install selective washe

NOTEUse petroleum jelly to hold

3) Install complete conve

assembly to adapter ca4) Fit and tighten seven o

Converter Housing Outer

Screw Torque

39 (4.0 /

5) Ensure free rotation of

Pump rotation tool: 5-8



Overdrive end play measu

1) Fit puller on turbine sh2) Position axial play chec

housing mating face.3) Pull turbine shaft upwa

resistance is met.(Due to weight of overdMaintain shaft in this p

zero.4) Pull turbine shaft furth

Read end play shown o

Overdrive End Play

Standa

0.1 – 0.8 (0.00

5) Remove axial play che

NOTE:Ifendplay isnotcorrect, r


15. Extension Housing and Fla1)Inspect extension hous

bearing.Replace if neceExtension housing oil seal

2)Rotate transmission to

valve body side down.3) Inspect parking wheel necessary.

4) Install wheel parking lo5) Install speed wheel and

NOTE:Use extra long nose pliers

6)Install gasket onto exte

thin coating of oil.7) Install extension housiparking pawl shaft.

15.Wheel parking lock

Seal ring

15.Speed wheel15.Retaining ring

15.Extension housing

15.Flange15.Flange nut

14.Speed sensor

241LW001



8)Install actuator assembassembly.

9) Install seven 8 mm hex

Extension Housing Bolt To

32 (3.3

10) Install flange and O-rin11) Install flange nut.

Flange Nut Torque

103 (10.5

14. Speed Sensor1) Inspect speed sensor O2) Install speed sensor as

Speed Sensor Bolt Torque

9 (90 /

Main case end play measu

1) Attach axial play checkhousing and set indica

2) Manually push output

Main Case End Play

Stand

AUTOMATIC TRANSMIS

13. Servo Piston1) Inspect piston seal ring2) Ensure brake band is c

output shaft if necessa3) Install servo piston fitte4) Install apply rod, round

spring and piston asse5) Install the tool with off6) Compress servo piston

tightening the tool scre7) Install servo piston reta8) Remove tool.9) Adjust the brake band

adjusting screw to 4.5 torque. Be certain the l

off the screw five turnswith wrench and tighte(1.9 kg·m / 14 lb·ft) torq



adjusting screw does n

Servo spring compressor: Servo piston fitter: 5-8840-


2. O-ring

1. Torque converter



6. Adapter casevalve body

5. Wiring harness

4. Adapter caseoil pan

12.Main case valve body

AUTOMATIC TRANSMIS

12. Main Case Valve Body and1) Install two check balls.2) Inspect electrical conne

necessary.3) Install electrical 4 pin c

wiring harness.4) Install two guide pins i

Guide pin: 5-8840-0022-0 (J

5) Install valve body comvalve link.

NOTE:Valve must be extended avalve link is connected to tLong end of link goes into

6) Install seven 13 mm sc



7) Pass ground wire of adassembly through the area and main case flu

8) Assemble 8.5 mm connthe head of this valve b

Main Case Valve BodyBolt Torque

20 (2.0 /

9) Remove two guide pin

11. Servo CoverInstall servo cover gasket,

screws.Servo Cover Bolt Torque

25 (2.5 /

10. Wiring HarnessConnect harness to band c

9. Manual DetentInstall roller and spring ass

Install two 13 mm screws.Manual Detent Screw Torq

Earth harness

244RV001


7. Main Case Oil PanInstall oil pan gasket, magscrews.

Main Case Oil Pan Bolt To

11 (110

6. Adapter Case Valve Body1) Inspect electrical conne

necessary.Install electrical five pinassembly in bottom of Install gasket, transfer

2) Install adapter case vaseven 13 mm screws.

Adapter Case Valve BodyBolt Torque

20 (2.0



5. Wiring Harness1) Connect harness assem

solenoid, and force mo

4. Adapter Case Oil Pan1) Install oil pan gasket, o

screws.

Adapter Case Oil PanBolt Torque

11 (110

2) Rotate transmission, wdown.

3. Mode Switch1) Install mode switch, sh

screws.2) Adjust using setting to

Refer to “MODE SWITC

Selector Shaft Nut Torque

23 (2.3 /

Mode Switch Screw Torqu

13 (130 /

2. O-RingInstall O-ring on turbine sh

1. Torque Converter

1) The converter assemblany of the following coa. Evidence of damagb M t l ti l

AUTOMATIC TRANSMIS



b. Metal particles are cooler lines

c. External leaks in hud. Converter Pilot bro

into crankshafte. Converter hub scor

f. Internal failure in stg. Contamination fromh. Excess end play

2) Install converter assemRotate transmission, bconverter to insure pro

3) Fill transmission throuDEXRON®-III ATF.


421

6

CONVERTER HOUSING AND OIL PUMP ASSEMBLY



DISASSEMBLY

1. Converter HousingRemove five bolts from co

2. Outer Seal Ring

3. Gasket

4. Wear Plate

5. Oil Pump Assembly

6. Oil Seal Ring

Disassembly Steps

1. Converter housing2. Outer seal ring3. Gasket4. Wear Plate5. Oil pump assembly6. Oil seal ring

Reassembly Step

To reassemble, foin the reverse ord

AUTOMATIC TRANSMIS

REASSEMBLY

6. Oil Seal RingInstall oil seal ring using in

Oil Seal Ring Bolt Torque

3 (30 /

5. Oil Pump Assembly

4. Wear PlateInstall wear plate onto oil p

3. Gasket

2. Outer Seal Ring

1. Converter Housing1) Install converter housin

assembly. Align with twouter bolt holes.2) Loosely install five 13m3) Center converter housi



3) Center converter housi4) Tighten five inner 13m

pattern.

Converter Housing Bolt To

20 (2.0 /

Guide pin: 5-8840-2268-0 (JCentering tool: 5-8840-227


14

1516

17

1112

13

1 2

10

6

5

4

OIL PUMP



DISASSEMBLY

1. Oil Pump Drive Gear

2. Oil Pump Driven Gear

3. Pin

4. Plug5. Spring

Disassembly Steps

1. Oil pump drive gear2. Oil pump driven gear

3. Pin4. Plug5. Spring6. Converter clutch control valve7. Snap ring8. Spring seat9. Spring

10. Throttle signal accumulator piston

11. Sleeve pin12. Sleeve13. Boost valve

14. Spring seat15. Valve spring16. Spring seat17. Pressure regu

Reassembly Step

To reassemble, foin the reverse ord

AUTOMATIC TRANSMIS

INSPECTION AND REPAIR

Visual check If any damage, deformation or snap ring, spring, spring retainreplace it.

REASSEMBLY

17. Pressure Regulator Valve

16. Spring SeatLubricate and preinstall prseat on valve, with the flat

15. Valve Spring

14. Spring Seat

13. Boost Valve



13. Boost Valve

12. Sleeve

11. Sleeve Pin

10. Throttle Signal Accumulat

9. Spring

8. Spring SeatInstall throttle signal accumspring seat, with the flat siand snap ring.

7. Snap Ring

6. Converter Clutch Control V

5. Spring

4. Plug

3. Pin

2. Oil Pump Driven Gear

1. Oil Pump Drive Gear


1

8

13

271097

6

2625

23

24

4

53

MAIN CASE VALVE BODY



1514

1211

1918

1617

4

Disassembly Steps

1. Gaskets and transfer plate

2. Manual valve3. Band control solenoid4. Pin5. Waved washer6. Spring pin7. Solenoid A8. Retainer9. 1-2/3-4 shift valve

10. Spring

11. Spring pin12. Solenoid B13 R t i

21. Plug22. Band control23. Spring pin

24. Plug25. 1-2 accumula26. 1-2 accumula27. Check ball

Reassembly Step

To reassemble, fo

in the reverse ord

AUTOMATIC TRANSMIS

DISASSEMBLY

1. Gaskets and Transfer PlateRemove two 11mm bolts f

2. Manual Valve

3. Band Control Solenoid

4. Pin

5. Waved Washer

6. Spring Pin

7. Solenoid ARemove solenoids by grasgrasp the connector housi

8. Retainer

9. 1-2/3-4 Shift Valve

10. Spring11. Spring Pin

12. Solenoid BRemove solenoids by gras



Remove solenoids by grasgrasp the connector housi

13. Retainer

14. 2-3 Shift Valve

15. Spring

16. Spring Pin17. Plug

18. Spring

19. Low Pressure Control Valv

20. Spring Pin

21. Plug

22. Band Control Screen Asse

23. Spring Pin24. Plug

25. 1-2 Accumulator Valve

26. 1-2 Accumulator Control V

27. Check BallRemove 1 check ball from

INSPECTION AND REPAIRInspect for the following and re


REASSEMBLY

27. Check BallInstall 1 check ball to valve

26. 1-2 Accumulator Control V

25. 1-2 Accumulator Valve

24. Plug

23. Spring Pin

22. Band Control Screen Asse

21. Plug

20. Spring Pin

19. Low Pressure Control Valv

18. Spring

17. Plug

16. Spring Pin15. Spring

14. 2-3 Shift Valve

13 R t i



13. Retainer

12. Solenoid B

11. Spring Pin

10. Spring

9. 1-2/3-4 Shift Valve8. Retainer

7. Solenoid A

6. Spring Pin

5. Waved Washer

4. Pin

3. Band Control Solenoid

2. Manual Valve

1. Gaskets and Transfer Plat1) Install gasket (valve bo

transfer plate, using tw2) Install two 11mm bolts

Valve Body Bolt Torque

13 (130 /

3) Install gasket (transfer

Guide pins: 5-8840-227

AUTOMATIC TRANSMIS

2

6

8

10

7

4

5

9

3

ADAPTER CASE VALVE BODY



13

1

14

1211

DISASSEMBLY

Disassembly Steps

1. Converter clutch solenoid2. Retainer3. Force motor solenoid4. Retainer5. Plug6. 3/4 accumulator valve7. 3/4 accumulator control valve8. Spring9. Retaining ring

10. Feed limit valve

11. Plug retainer12. O-ring13. Plug14. Force motor s15. Adapter case

Reassembly Step

To reassemble, foin the reverse orde


8. Spring

9. Retaining Ring

10. Feed Limit Valve

11. Plug Retainer

12. O-ring

13. Plug

14. Force Motor Screen AssemUse 5mm bolt to pull plug


Inspect for the following and reworn parts:

•

Damage or wear to each v• Damage in oil passeges.• Cracks or damage to valve• Valve operations.

Spring fatigue



• Spring fatigue

REASSEMBLY

14. Force Motor Screen Assem13. Plug

12. O-ring

11. Plug Retainer

10. Feed Limit Valve

9. Retaining Ring

8. Spring

7. 3/4 Accumulator Control V

6. 3/4 Accumulator Valve

5. Plug

4. Retainer

3. Force Motor Solenoid

2. Retainer1) Place solenoid termina

face.

2) Install retainer and bolRetainer Bolt Torque

AUTOMATIC TRANSMIS

6 7

54312

THIRD CLUTCH AND SPRAG UNIT



DISASSEMBLY

1. Retaining Ring1) Place the third clutch h

shaft assembly upright

internal gear as a supp2) Locate the end of the s

Disassembly Steps

1. Retaining ring2. Input sun gear assembly3. Retaining washer4. Bearing5. Thrust washer6. Clutch plates

7. Third clutch drum

Reassembly Step



2. Input Sun Gear AssemblyPull the input sun gear assretaining ring clears the ri

3. Retaining Washer

4. Bearing

5. Thrust Washer

6. Clutch Plates7. Third Clutch Drum


Visual check If any damage, deformation or bearing, thrust washer, clutch p

replace it.

REASSEMBLY



7. Third Clutch Drum

6. Clutch Plates1) Place third clutch hous

assembly upright, usingear as a support.

2) Install third clutch spridown.

3) Install third clutch platStart with the steel clutlined plates.

5. Thrust Washer

4. Bearing

3. Retaining Washer2. Input Sun Gear Assembly

1. Retaining Ring1) Fully engage the sprag

the third clutch inner taSimultaneously rotate engage into the third c

2) Install a tool blade at e

retaining ring.3) Compress the retaining

it th t l bl d

AUTOMATIC TRANSMIS

Disassembly Steps1. Retaining ring2. Spring seat3. Springs

Reassembly Step To reassemble, foin the reverse orde;Repairkit

THIRD CLUTCH



3. Springs4. Piston

; Repair kit

DISASSEMBLY

1. Retaining Ring1) Compress spring seat u

NOTE:Do not over-stress the sprcause damage to the sprin

2) Remove retaining ring3) Release the spring sea

NOTE:Do not let the spring seat

Spring compressor: 5-8840Adapter: 5-8840-2259-0 (J -

2. Spring Seat


REASSEMBLY

4. Piston1) The lip of the seals mu

the transmission. Lubrtransmission fluid.

2) Install piston assemblyUse installer to protectinstallation.

Third clutch piston inst

3 S i



3. Springs

2. Spring Seat

1. Retaining Ring1) Place retaining ring on

2) Compress the piston sspring compressor.

NOTE:Do not over-stress the sprthe spring seat catch in thcause damage to the sprin

3)Install spring seat retai4)Remove the piston spr

Spring compressor: 5-8Adapter: 5-8840-2259-0

AUTOMATIC TRANSMIS

SPRAG UNIT

DISASSEMBLY

1. Sprag Outer Race

2. Sprag AssemblyRemove sprag outer race a

third clutch hub and sun g3. Sun Gear Assembly


Visual check If any damage, deformation or gear, sprag assembly or sprag o



REASSEMBLY

3. Sun Gear Assembly

2. Sprag AssemblyInstall sprag assembly ont

NOTE:Flared shoulder of the spraThis procedure must be fothat the sprag assembly is

1. Sprag Outer Race1) Install outer sprag race

cage assembly.2) Place third clutch hub a

flat surface, sun gear farace and sprag assembassembly, push down acounterclockwise at the

NOTE:Check correct rotation by

your left hand and turningsprag race should turn fre


11 10 9 8 7

SECOND CLUTCH



Disassembly Steps

1. Retaining ring2. Ring gear3. Retaining ring4. Spacer5. Clutch plates6. Waved washer

7. Retaining ring8. Spring seat

9. Springs10. Piston11. Second clutc

Removal Steps

To reassemble, fo

in the reverse ord

5 4 3 2

DISASSEMBLY

1. Retaining Ring

2. Ring Gear

3. Retaining Ring

4 Spacer

AUTOMATIC TRANSMIS

8. Spring Seat

9. Springs

10. Piston

11. Second Clutch Drum


Visual check If any damage, deformation or retaining ring, ring gear, spaceseals, return spring or spring se

Operation check Shake piston and listen for checMovement indicates proper che

piston if check ball is missing o

REASSEMBLY

11 S d Cl hD



11. Second Clutch Drum

10. PistonInstall piston assembly intLubricate the lip seal with

transmission fluid. Use theouter piston lip seal.

NOTE:Lip of the seals point towa

Second clutch piston insta

9. Springs

8. Spring Seat

7. Retaining Ring1) Install twenty-two pisto


4. SpacerInstall spacer, with the flutplates.

3. Retaining Ring

2. Ring gear

1. Retaining Ring

3-4 ACCUMULATOR PISTON

DISASSEMBLY

Disassembly steps1. Snap ring2. Cover3. Spring4. Piston

Reassembly steps To reassemble, follow thereverse order.



Repair kit

1. Snap RingInstall cover compressor oCompress piston cover. Re

Compressor: 5-8840-2277-5-8840-2277-1

Adapter case

Piston cover

AUTOMATIC TRANSMIS

2. Cover

Install cover remover to ceUse slide hammer to remo

Cover remove: 5-8840-240Adapter: 5-8840-2266-0 (J -Slide hammer: 5-8840-001

3. Spring

4. Piston


Visual Check If any damage, deformation or spring, piston or piston cover, r

5-8840-0019-0

5-8840-2266-0 5-8840-2403-0

242LW001



REASSEMBLY

4. PistonPlace the fitter into adaptointo position, using suitab

Piston fitter: 5-8840-2264-0

3. Spring


REVERSE CLUTCH PISTON AND CENTER SUPPORT

5-8840-2277-1Adapter case

Piston cover

2. CoverInstall cover, using compr

Compressor: 5-8840-2277-

1. Snap ringInstall snap ring in groove



AUTOMATIC TRANSMIS

DISASSEMBLY

1. Retaining Ring1) Install the tool on sprin

2) Compress the spring sCompressor: 5-8840-01

NOTE:Do not over-stress the sprcause damage to the sprin

2. Spring Seat

3. Springs

4. Piston5. Center Support

Remove 8 bolts from centesupport from adapter case

6. Gasket



6. Gasket

7. Transfer Plate

8. Gasket

9. Restrictor

10. Retainer Plate

11. Plug

12. Spring

13. Overrun Lock Out Valve


Visual check If any damage, deformation or retaining ring, return spring, spcenter support, replace it.

REASSEMBLY

13. Overrun Lock Out Valve

12. SpringInstall overrun lock out val


9. RestrictorPlace in the lube overdrivecase housing.

8. Gasket

7. Transfer Plate

6. Gasket

5. Center SupportInstall center support with

Center Support Bolt Torqu

25 (2.5

4 Pi t



4. Piston

3. Springs

2. Spring Seat

1. Retaining Ring1) Install twenty four spri

retaining ring.2) Install the tool.3) Compress retaining rin4) Seat snap ring in groo

Compressor: 5-8840-01

AUTOMATIC TRANSMIS

415 14 13

12 11 10 9 8 3

7

6 5 2 1

OVERRUN CLUTCH AND TURBINE SHAFT



Disassembly Steps

1. Snap ring2. Overdrive carrier assembly3. Sun gear4. Turbine shaft

5. Snap ring6. Backing plate7. Clutch plates8. Snap ring9. Overrun roller clutch cam

10. Roller clutch assembly11. Overrun clutch release spring

retainer12. Diaphragm spring

13. Piston14 Overrun clutch drum

Reassembly Step



DISASSEMBLY

1. Snap Ring1) Position overrun clutch

the overdrive internal g2) Remove snap ring.

2. Overdrive Carrier Assemb

3 S G



3. Sun Gear

4. Turbine Shaft

5. Snap Ring

6. Backing Plate7. Clutch Plates

8. Snap RingCompress piston return sp

Compressor: 5-8840-2275-

9 O R ll Cl t h C

AUTOMATIC TRANSMIS


Overdrive carrier check

Check pinion end play with a fe

Overdrive Carrier Pinion End Pl

Standa

0.24 – 0.64 (0.00

If clearance is outside specifiedcarrier assemlby

Visual check If any damage, deformation or snap ring, diaphragm spring, ol t h bl t bi h ft



REASSEMBLY

clutch assembly, turbine shaft, replace it.

15. Turbine Shaft Seal RingsInstall seals with grease (p


13. Piston1) Install the inner instal2) Pre-install piston into o3) Install overrun clutch p

outer installer while pu

Installer: 5-8840-2269-0



12. Diaphragm Spring

11. Overrun Clutch Release Sp

10. Roller Clutch Assembly9. Overrun Roller Clutch Cam

8. Snap Ring1) Place snap ring loosely2) Hold the compressor in

return spring with com3) Set snap ring in ring g

Compressor: 5-8840-22

7. Clutch PlatesInstall clutch plates, start walternate with lined plates

AUTOMATIC TRANSMIS

4L30-E PARTS LISTCASE AND ASSOCIATED PARTS

123 5

68

910

1112

27 2829

4

7

2830 31

812

32

1314

15



23

6768

69

71

7273

104

15

70

84

85

86

87

88

33

105

TRANSMISSION

1918

1716 43

3536

37

39 38

6

34

89

85

59

58

20

70

82

42

54

5557


1 Torque converter2 Screw, seal ring assembly3 Seal ring assembly, converter

housing4 Screw, converter housing/main

case5 Screw, converter housing/oil pump6 Housing, converter7 Plug, converter housing8 Seal, O-ring9 Wear plate, oil pump body10 Pump assembly, oil11 Gasket12 Washer, thrust selective13 Ring, snap14 Cover, 3-4 accumulator piston15 Seal, O-ring, 3-4 accumulator

16 Spring, 3-4 accumulator piston17 Pin, 3-4 accumulator piston18 Piston, 3-4 accumulator19 Ring, 3-4, accumulator piston20 Case, adapter22 Connector, electrical/adapter case

36 Case, main37 Breather, pipe38 Seal, O-ring39 Reservoir

42 Gasket, extension case43 Extension assembly44 Seal, O-ring/speed sensor45 Sensor assembly, speed46 Screw, speed sensor47 Nut, output shaft/drive flange48 Seal, O-ring/drive flange49 Flange, drive50 Seal, extension assembly51 Bearing, needle/extension52 Screw, extension/main case

53 Spring, parking pawl lock54 Pawl, parking lock55 Connector, electrical/main case56 Actuator assembly, parking lock57 Nut, parking lock lever58 Link, manual valve59 Pin, spring

72 G73 P74 P75 G76 G77 S78 M79 F80 H81 E82 R

d

84 V85 B86 G87 P

88 G89 S90 S91 C92 G93 R94 C

CASE AND ASSOCIATED PARTS



27 Restrictor, oil28 Gasket, Transfer plate/adapter29 Plate, transfer adapter/center

support30 Support assembly, center31 Screw, center support32 Ring, oil seal33 Seal, O-ring main case34 Fitting, cooler35 Fitting assembly, cooler

60 Lever, parking lock & rangeselelector

61 Shaft, selector

62 Seal, selector shaft63 Mode switch assembly64 Screw & conical washer assembly65 Shield, mode switch

67 Pan, Bottom/Adapter case68 Gasket, bottom pan/adapter case69 Harness assembly, adapter case70 Screw, valve body71 Valve body assembly, adapter case

95 N96 S97 P

98 S99 S100 S101 S102 R103 S104 G105 T106 S

PUMP ASSEMBLY

206

207206

208

209

AUTOMATIC TRANSMIS

VALVE BODY ASSEMBLIES

318320

309

321

306

317

312

310

308

302

303

304

305

317

301

307

305317

311



403

402

406404

301 Body, valve main case302 Pin, spring

303 Solenoid assembly, on/off N.C.304 Valve, 1-2 & 3-4 shift305 Spring, 1-2 & 3-4 (2-3) shift306 Retainer, valve307 Solenoid assembly, ON/OFF N.O.308 Valve, 2-3 shift309 Pin, spring310 Plug, valve bore311 Spring, valve low pressure control312 Valve, low pressure control317 Ball, check

318 Valve, 1-2 accumulato320 Valve, 1-2 accumulato

321 Washer, waved PWM 322 Pin, solenoid PWM323 Solenoid assembly, b324 Screen assembly, PW325 Plug, screen326 Valve, manual

302

310

401 Bod

402 Scre403 Reta404 S l


OVERDRIVE INTERNAL COMPONENTS

501

502503

504 505

514 515

516 517

518 519

521520

522523

524

5255

506

508510



530531

532

533534

AUTOMATIC TRANSMIS

INTERNAL COMPONENTS




608 Seal, reverse clutch piston (inner)609 Seal, reverse clutch piston (outer)610 Piston, reverse clutch611 Spring, piston clutch612 Seat, spring/reverse clutch613 Ring, Retaining614 Plate, waved/reverse clutch615 Plate, reverse clutch (steel)616 Plate assembly, reverse clutch (lined)617 Plate, reverse clutch pressure/selective618 Drum assembly, 2nd clutch620 Seal, 2nd clutch piston (Inner)621 Seal, 2nd clutch piston (Outer)622 Piston, 2nd clutch623 Seat, spring/2nd clutch625 Plate, waved/2nd clutch626 Plate, 2nd clutch (Steel)

627 Plate assembly, 2nd clutch (Lined)628 Spacer, 2nd clutch629 Ring, retaining630 Gear, ring631 Washer, thrust/2nd clutch/3rd clutch632 Thrust washer, clutch hub634 Drum assembly, 3rd clutch635 Seal 3rd clutch piston (Inner)

638 Piston 3rd clutch639 Seat, spring/3rd clutc640 Ring, retaining641 Plate, spring cushion/642 Plate, 3rd clutch (Stee643 Plate assembly, 3rd c644 Washer, thrust/input s645 Bearing, input shaft/g646 Gear assembly, input647 Race assembly, sprag648 Ring, retaining/sprag649 Ring, retaining650 Cage assembly, sprag651 Bearing, output shaft652 Washer, output shaft/653 Carrier assembly, pla658 Gear, reaction sun

659 Drum, reaction sun664 Band assembly, brake667 Seal, ring/wheel park668 Wheel, parking lock

672 Wheel, speedo673 Ring, retaining

INTERNAL COMPONENTS



635 Seal, 3rd clutch piston (Inner)636 Washer, retaining637 Seal, 3rd clutch piston (Outer)

675 Bearing, thrust assem

CENTER SUPPORT ASSEMBLY

702703

704

705

TF4L3-WE-889AR

You are requested to order this manual using themanual number that is shown above.



This manual is applicable for vehicles in theAustralia.

All rights reserved. This manual may not bereproduced in whole or in part, without thepermission in writing of ISUZU MOTORS LIMITED.

Issued by



No.TF4L3-WE-889AR PRINTED IN J APAN

Date post:	19-Feb-2018
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Chevrolet Automatic Transmission 4L30-E Isuzu (TF4L3-WE-889AR) Service and Repair Manual

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