23Aa-1
GROUP 23Aa
CONTENTS
GENERAL DESCRIPTION. . . . . . . . . 23Aa-3
SPECIAL TOOLS. . . . . . . . . . . . . . . . 23Aa-12
ON-VEHICLE SERVICE. . . . . . . . . . . 23Aa-13AUTOMATIC TRANSMISSION CONTROL COMPONENT LAYOUT . . . . . . . . . . . . . . . 23Aa-13ESSENTIAL SERVICE . . . . . . . . . . . . . . . . 23Aa-16A/T FLUID CHECK . . . . . . . . . . . . . . . . . . . 23Aa-16A/T FLUID REPLACEMENT . . . . . . . . . . . . 23Aa-17FLUSHING COOLERS AND TUBES . . . . . 23Aa-18OIL COOLER FLOW CHECK . . . . . . . . . . . 23Aa-20TP SENSOR ADJUSTMENT . . . . . . . . . . . 23Aa-20PARK/NEUTRAL POSITION SWITCH CONTINUITY CHECK. . . . . . . . . . . . . . . . . 23Aa-21PARK/NEUTRAL POSITION SWITCH AND CONTROL CABLE ADJUSTMENT. . . . . . . 23Aa-21HIGH RANGE/LOW RANGE DETECTION SWITCH CHECK <V4A51> . . . . . . . . . . . . 23Aa-22TRANSFER LOW DETECTION SWITCH CHECK <V4A51> . . . . . . . . . . . . . . . . . . . . 23Aa-22CENTER DIFFERENTIAL LOCK DETECTION SWITCH CHECK <V4A51> . . . . . . . . . . . . 23Aa-23
CENTER DIFFERENTIAL LOCK OPERATION DETECTION SWITCH CHECK <V4A51> . . 23Aa-23TRANSFER OIL CHECK <V4A51>. . . . . . . 23Aa-24TRANSFER OIL REPLACEMENT <V4A51> . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Aa-24SELECTOR LEVER OPERATION CHECK. 23Aa-24KEY INTERLOCK MECHANISM CHECK . . 23Aa-25SHIFT LOCK MECHANISM CHECK. . . . . . 23Aa-26AUTOMATIC TRANSMISSION CONTROL COMPONENT CHECK . . . . . . . . . . . . . . . . 23Aa-26CRANKSHAFT POSITION SENSOR CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Aa-26TP SENSOR CHECK . . . . . . . . . . . . . . . . . 23Aa-26A/T FLUID TEMPERATURE SENSOR CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Aa-27PARK/NEUTRAL POSITION SWITCH CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Aa-27STOPLIGHT SWITCH CHECK . . . . . . . . . . 23Aa-27VEHICLE SPEED SENSOR CHECK . . . . . 23Aa-27DUAL PRESSURE SWITCH CHECK . . . . . 23Aa-27A/T CONTROL RELAY CHECK . . . . . . . . . 23Aa-28SOLENOID VALVE CHECK . . . . . . . . . . . . 23Aa-28
Continued on next page
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING• Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to
personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and passenger (from rendering the SRS inoperative).
• Service or maintenance of any SRS component or SRS-related component must be performed only at an authorized MITSUBISHI dealer.
• MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related component.
NOTEThe SRS includes the following components: SRS air bag control unit, SRS warning light, front impact sensors, air bag module,clock spring, and interconnecting wiring. Other SRS-related components (that may have to be removed/installed in connectionwith SRS service or maintenance) are indicated in the table of contents by an asterisk (*).
23Aa-2
TRANSMISSION CONTROL . . . . . . . 23Aa-30REMOVAL AND INSTALLATION . . . . . . . . 23Aa-30INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 23Aa-33DISASSEMBLY AND ASSEMBLY . . . . . . . 23Aa-34
A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMS*. . . . . . . . . . . . 23Aa-36
REMOVAL AND INSTALLATION . . . . . . . . 23Aa-36
TRANSMISSION AND TRANSFER ASSEMBLY . . . . . . . . . . . . . . . . . . . . 23Aa-38
REMOVAL AND INSTALLATION . . . . . . . . 23Aa-38
OIL PAN . . . . . . . . . . . . . . . . . . . . . . . 23Aa-42REMOVAL AND INSTALLATION . . . . . . . . 23Aa-42
TRANSMISSION FLUID COOLER, HOSE, PIPE . . . . . . . . . . . . . . . . . . . . 23Aa-44
REMOVAL AND INSTALLATION . . . . . . . . 23Aa-44
POWERTRAIN CONTROL MODULE (PCM) . . . . . . . . . . . . . . . . . . . . . . . . . 23Aa-46
REMOVAL AND INSTALLATION . . . . . . . . 23Aa-46
4WD INDICATOR ECU. . . . . . . . . . . . 23Aa-47REMOVAL AND INSTALLATION . . . . . . . . 23Aa-47INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 23Aa-47
SPECIFICATIONS . . . . . . . . . . . . . . . 23Aa-48FASTENER TIGHTENING SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . 23Aa-48SERVICE SPECIFICATIONS . . . . . . . . . . . 23Aa-49LUBRICANTS . . . . . . . . . . . . . . . . . . . . . . . 23Aa-50SEALANT AND ADHESIVE . . . . . . . . . . . . 23Aa-50
GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION 23Aa-3
. GENERAL DESCRIPTIONM1231100100095
The automatic transmission comes in two models, R4A51 and V4A51.
TRANSMISSIONThe transmission is made up of the torque converter and the gear train. A 3-element, 1-step, 2-phase torque converter with built-in torque converter clutch is used. The gear train of the V4A51 transmission made up of three sets of multiple disc clutches, two sets of multiple disc brakes, one set of one-way clutch and two sets of planetary carriers..
ITEM SPECIFICATIONModel R4A51 V4A51Engine 6G72 (3.0L Engine), 6G74
(3.5L Engine)6G72 (3.0L Engine), 6G74 (3.5L Engine)
Torque converter type With torque converter clutch With torque converter clutchTransmission type Electronically controlled 4-
speed full automaticElectronically controlled 4-speed full automatic
Control elements Clutch Multiple disc type 3 sets Multiple disc type 3 setsBrake Multiple disc type 2 sets Multiple disc type 2 setsOne-way clutch Sprag type 1 set Sprag type 1 set
Gear ratio 1st gear 2.842 2.8422nd gear 1.495 1.4953rd gear 1.000 1.0004th gear 0.731 0.731Reverse gear 2.720 2.720
Oil pump type Gear type Gear typeOil cooling system Water-cooled type Water-cooled typeTransfer type − 2-speedShift ratio High − 1.000
Low − 1.900Speedometer gear ratio 26/8 (3.0L Engine), 25/8 (3.5L
Engine)29/9
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION23Aa-4
TRANSMISSION CONFIGURATION DRAWING
.
COMPONENTS AND FUNCTIONS
FUNCTION ELEMENT TABLE
ACX01823
OD REV OWC2ND UDLR
AB
COMPONENT FUNCTIONUnderdrive clutch UD connects the input shaft to the underdrive sun gear.Reverse clutch REV connects the input shaft to the reverse sun gear.Overdrive clutch OD connects the input shaft to the overdrive planetary carrier.Low-reverse brake LR holds the low-reverse annulus gear and the overdrive planetary
carrier.Second brake 2ND holds the reverse sun gear.One-way clutch OWC controls rotation direction of the low-reverse annulus gear.
OPERATING ELEMENT
ENGINE START
PARKING MECHANISM
UNDERDRIVE CLUTCH (UD)
REVERSE CLUTCH (REV)
OVERDRIVE CLUTCH (OD)
LOW-REVERSE BRAKE (LR)
SECOND BRAKE (2ND)
ONE-WAY CLUTCH (OWC-L)SELECTOR
LEVER POSITION
P Parking OK × − − − × − −R Reverse − − − × − × − −N Neutral OK − − − − × − −D 1st − − × − − ×* − ×D 2nd − − × − − − × −D 3rd − − × − × − − −D 4th − − − − × − × −3 1st − − × − − ×* − ×3 2nd − − × − − − × −3 3rd − − × − × − − −2 1st − − × − − ×* − ×2 2nd − − × − − − × −L 1st − − × − − × − ×
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION 23Aa-5
• ×: Function element• Item marked with an * operate only when stopped [approximately 10 km/h (6.2mph) or less].
SECTIONAL VIEW <R4A51>
AC005867
4 5 61 2 3 7 8 9 14 15
16
11 12 13
17
10
AB
1. TORQUE CONVERTER CLUTCH 2. TORQUE CONVERTER 3. OIL PUMP 4. OVERDRIVE CLUTCH 5. REVERSE CLUTCH 6. OVERDRIVE PLANETARY CARRIER 7. SECOND BRAKE 8. OUTPUT PLANETARY CARRIER 9. LOW-REVERSE BRAKE
10. ONE-WAY CLUTCH 11. CENTER SUPPORT 12. UNDERDRIVE CLUTCH 13. OUTPUT SHAFT SUPPORT 14. PARKING GEAR 15. OUTPUT SHAFT 16. VALVE BODY 17. INPUT SHAFT
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION23Aa-6
SECTIONAL VIEW <V4A51>
ELECTRONICALLY-CONTROLLED SYSTEM.
INVECS-II• When in drive ("D" range), the new automatic transmission
employs an innovative shift schedule to provide a high level of comfort and "easy driving style" that matches all driving conditions as well as the driver's driving style.
AC005868
164 5 61 2 3 7 8 9 14 1511 12 1310 2018 1917 22
232426 25
21
AB
1. TORQUE CONVERTER CLUTCH 2. TORQUE CONVERTER 3. OIL PUMP 4. OVERDRIVE CLUTCH 5. REVERSE CLUTCH 6. OVERDRIVE PLANETARY CARRIER 7. SECOND BRAKE 8. OUTPUT PLANETARY CARRIER 9. LOW-REVERSE BRAKE 10. ONE-WAY CLUTCH 11. CENTER SUPPORT 12. UNDERDRIVE CLUTCH 13. OUTPUT SHAFT SUPPORT
14. PARKING GEAR 15. OUTPUT SHAFT 16. TRANSFER INPUT GEAR 17. H-L CLUTCH 18. LOW SPEED GEAR 19. 2-4WD SYNCHRONIZER SLEEVE 20. DRIVE SPROCKET 21. CHAIN 22. REAR OUTPUT SHAFT 23. FRONT OUTPUT SHAFT 24. TRANSFER COUNTER GEAR 25. VALVE BODY 26. INPUT SHAFT
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION 23Aa-7
• INVECS-II features "Optimum Shift Control," which provides shift timing the average driver perceives to be the optimum timing under any road conditions "Adaptive Shift Control" adjusts shift timing to match the driving habits and prefer-ences of individual drivers.
.
FEATURESOPTIMUM SHIFT CONTROL
1. The shift patterns found satisfying by the typical driver for all ranges of driving are stored in the computer's memory. The computer uses this data to analyze road conditions and the driver's style of operation, and then outputs the optimal shift patterns stored in its memory to best match the conditions.
2. We introduce the latest in control technologies with an inno-vative new algorithm called the "neural network" that works to imitate the decision-making processes of the human brain. The neural network links a wide variety of input data regarding road and operating conditions, and instantly makes accurate shift control decisions.
.
ADAPTIVE SHIFT CONTROL1. The computer learns the driving habits and pref-
erences of each individual driver by processing driving data on engine output, tire load, foot brake operation, etc. It then uses this data to adjust shift timing to best suit the driver's style.
2. If the computer determines from the driving pat-terns that the driver is one who enjoys a relaxed, unhurried style, it adjusts timing to execute up-shifts at a lower engine speed to provide a smooth, quiet ride. On the other hand, if the com-puter determines the driver to prefer a sporty ride, it adjusts timing to shift up at a higher engine speed to provide more powerful response.
AC000841AB
WITH INVECS-IIWITHOUTINVECS-II
OPTIMUM SELECTION OF GEARS
LEVEL ROAD
ALL DRIVING CONDITIONS
DRIVER'S HABITS ANDPREFERENCE
AC000842
ACCELERATORPOSITION
VEHICLE SPEED
FOOT BRAKE
OPTIMUMGEARSELECTION
MANUAL SHIFTOPERATIONDATA OF ANUMBERDRIVER'S
DECISION
ROADCONDITIONAND DRIVINGOPERATION
COMPUTER
OPTIMUM CONTROL
AB
AC000843
ACCELERATORPOSITION
VEHICLE SPEED
FOOT BRAKE
OPTIMUMGEARSELECTION
DATAPROCESSED
INTERRE-LATED
DECI-SION
COMPUTER
NEURAL NETWORK
AB
AC000844
DRIVER WHO PREFERSRELAXING RIDE
DRIVER WHO PREFERSSPORTIER RIDE
50 (31)
4TH3RD
100 (62)
VEHICLE SPEED [km/h (mph)]
ADAPTIVE SHIFT CONTROL DURING ACCELERATION
AB
4TH3RD
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION23Aa-8
3. If the computer determines that the driver tends to apply the brakes often on a descending road-way, it adjusts timing to downshift sooner so that engine braking is more effectively applied. Con-versely, if the computer determines that the driver does not brake much while driving downhill, it delays downshifting to minimize the effect of engine braking.
.
AC000845
DRIVER WHO PRESSESBRAKE PEDAL OFTEN
AVERAGE DRIVER 4TH
3RD
ADAPTIVE SHIFT CONTROL ON DOWNGRADES
AB
4TH3RD4TH
4TH
4TH
4TH
3RD
2ND
DRIVER WHO RARELYPRESSES THE BRAKE
CONVENTIONAL A/T (NO DOWN SHIFT)
NEW A/T WITHINVECS-II
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION 23Aa-9
SYSTEM CONSTRUCTION DIAGRAM
Ignition switch
Input shaft speed sensor
Output shaft speed sensor
Crankshaft position sensor
Throttle position sensor
A/T fluid temperature sensor
Park/Neutral position switch
Vehicle speed sensor
Dual pressure switch
Stoplight switch
Scan tool (MUT-II)
Serial communication
A/T control relay
Torque converter clutch solenoid valve
Low-reverse solenoid valve
Second solenoid valve
Underdrive solenoid valve
Overdrive solenoid valve
SENSE DECIDE ACT
AC101192
Transfer low detection switch <V4A51>
Cruise control unit (OD OFF Signal)
A/T fluid temperature warning light
Powertrain control module (PCM)
Fail-safe operation
Diagnosis trouble code output
AB
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION23Aa-10
SHIFT PATTERN CONTROL.
<3.0L Engine> UPSHIFT PATTERN
NOTE: Within 2 -to- 3 and 3 -to- 4 movement ranges, the PCM adjusts shift points according to the driving conditions by memorizing the accelerator pedal stroke and braking timing..
DOWNSHIFT PATTERN
.
AC103564
100
50
0
0 (0) 50 (31) 100 (62) 150 (93)
VEHICLE SPEED [km/h (mph)]
1,000 2,000 3,000 4,000 5,000 6,000 7,000OUTPUT SHAFT SPEED (r/min)
AC
THICK LINE: STANDARD SHIFT PATTERN
2 → 3MOVEMENTRANGE
3→4MOVEMENTRANGE
1 2 2 3 3 4
THROTTLE OPENING (%)
THROTTLE OPENINGVOLTAGE (V) 4.66
4.0
3.0
2.0
1.0
0.41
0 (0) 50 (31) 100 (62) 150 (93) 200 (124)
<VEHICLES WITH WIDE FENDER>
<VEHICLES WITHOUT WIDE FENDER>
AC103565
100
50
0
0 (0) 50 (31) 100 (62) 150 (93)
VEHICLE SPEED [km/h (mph)]
1,000 2,000 3,000 4,000 5,000 6,000 7,000OUTPUT SHAFT SPEED (r/min)
AB
1 2
2 3
THROTTLE OPENING (%)
THROTTLE OPENINGVOLTAGE (V) 4.66
4.0
3.0
2.0
1.0
0.41
0 (0) 50 (31) 100 (62) 150 (93) 200 (124)
<VEHICLES WITH WIDE FENDER>
<VEHICLES WITHOUT WIDE FENDER>
3 4
3 4 (L, 2, 3)2 3 (L, 2)
1 2 (L)
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GENERAL DESCRIPTIONAUTOMATIC TRANSMISSION 23Aa-11
<3.5L Engine> UPSHIFT PATTERN
NOTE: Within 2 -to- 3 and 3 -to- 4 movement ranges, the PCM adjusts shift points according to the driving conditions by memorizing the accelerator pedal stroke and braking timing..
DOWNSHIFT PATTERN
AC103566
100
50
0
0 (0) 50 (31) 100 (62) 150 (93)
VEHICLE SPEED [km/h (mph)]
1,000 2,000 3,000 4,000 5,000 6,000 7,000OUTPUT SHAFT SPEED (r/min)
AB
THICK LINE: STANDARD SHIFT PATTERN
2 → 3MOVEMENTRANGE
3→4MOVEMENTRANGE
1 2 2 3 3 4
THROTTLE OPENING (%)
THROTTLE OPENINGVOLTAGE (V) 5.0
4.0
3.0
2.0
1.0
0.635
0 (0) 50 (31) 100 (62) 150 (93)
200 (124)<R4A51>
<V4A51>
AC103567
100
50
0
VEHICLE SPEED [km/h (mph)]
1,000 2,000 3,000 4,000 5,000 6,000 7,000OUTPUT SHAFT SPEED (r/min)
AB
1 2
2 3
THROTTLE OPENING (%)
THROTTLE OPENINGVOLTAGE (V) 5.0
4.0
3.0
2.0
1.00.635
3 4
3 4 (L, 2, 3)2 3 (L, 2)
1 2 (L)
0 (0) 50 (31) 100 (62) 150 (93)
0 (0) 50 (31) 100 (62) 150 (93)
200 (124)<R4A51>
<V4A51>
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SPECIAL TOOLSAUTOMATIC TRANSMISSION23Aa-12
SPECIAL TOOLSM1231100600120
TOOL TOOL NUMBER AND NAME
SUPERSESSION APPLICATION
MD998330 (Includes MD998331)Oil pressure gauge (3.0 MPa, 427 psi)
MD998330-01 Measurement of hydraulic pressure
MD998332Adapter
MD998332-01 Connection for oil pressure gauge
MD998478Test harness (3 pin, triangle)
MD998478-01 Inspection using an oscilloscope
MB991502Scan tool (MUT-II)
MB991496-OD Checking diagnostic trouble codes
MB991658Test harness set
Tool not available Inspection of throttle position sensor
MB991709Test harness set
Tool not available Inspection using an oscilloscope
B991502
MB991658
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-13
ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION CONTROL COMPONENT LAYOUT
M1231102000113
MD998900Adapter
MD998900-01 Connection for oil pressure gauge
MB995062Flushing tool
− Flushing cooler and tube
MD998727 Oil pan remover
MD998727-01 Removal of oil pan
TOOL TOOL NUMBER AND NAME
SUPERSESSION APPLICATION
D998727
NAME SYMBOL NAME SYMBOLA/T control relay K Output shaft speed sensor HA/T control solenoid valves I Park/Neutral position (PNP) switch EA/T fluid temperature sensor J Powertrain control module (PCM) LCrankshaft position sensor C Stoplight switch MData link connector (1), (2) N TP sensor ADual pressure switch B Transfer low detection switch <V4A51> GInput shaft speed sensor D Vehicle speed sensor F
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-14
AC101193
A
BCD E F
GHIJ
K
LMN
AB
AC002593
TP SENSOR
AH
A
AC002641
B
DUAL PRESSURESWITCH
AC
AC002599
CRANKSHAFTPOSITION SENSOR
AC
C
AC002609
D
AC
INPUT SHAFTSPEED SENSOR
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-15
AC004044AB
PARK/NEUTRAL POSITIONSWITCH
E
AC002608
F
AC
VEHICLE SPEED SENSOR
AC004021
G
AC
TRANSFER LOWDETECTIONSWITCH
AC002610AC
OUTPUT SHAFTSPEED SENSOR
H
AC004272AETORQUE CONVERTERCLUTCH SOLENOID VALVE
UNDERDRIVESOLENOID VALVE
LOW-REVERSESOLENOIDVALVE
OVERDRIVESOLENOIDVALVE
SECONDSOLENOIDVALVE
I
AC002605AC
A/T FLUIDTEMPERATURESENSOR
J
AC002590AF
A/T CONTROLRELAY
K
AC004020AC
POWERTRAINCONTROLMODULE (PCM)
L
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-16
ESSENTIAL SERVICE
A/T FLUID CHECKM1231101600134
1. Drive the vehicle until the A/T fluid temperature rises to the normal temperature [70 − 80°C (158 − 176°F)].NOTE: The A/T fluid temperature is measured with scan tool MB991502 (MUT-II).NOTE: If it takes some amount of time until the A/T fluid reaches its normal operating temperature [70 − 80°C (158 − 176°F)], check the A/T fluid level by referring to the left dia-gram.
2. Park the vehicle on a level surface.3. Move the selector lever through all positions to fill the torque
converter and the hydraulic circuits with fluid, and then move the selector lever to the "N" position.
4. After wiping off any dirt around the dipstick, remove the dipstick and check the condition of the A/T fluid.NOTE: If the A/T fluid smells as if it is burnt, it means that the A/T fluid has been contaminated by fine particles from the bushings and friction materials. A transmission overhaul and cooler line flushing may be necessary.
5. Check that the A/T fluid level is at the "HOT" mark on the dipstick. If the A/T fluid level is less than this, add DIAMOND ATF SP III or equivalent A/T fluid until the level reaches the "HOT" mark.NOTE: If the A/T fluid level is too low, the oil pump will draw in air along with the A/T fluid, which will cause bubbles to form. If the A/T fluid level is too high, rotating components inside the transmission will churn the fluid and air into a foamy liquid. Both conditions (level too low or too high) will cause the hydraulic pressure to drop, which will result in late shifting and slipping of the clutches and brakes.In either case, air bubbles can interfere with normal valve, clutch, and brake operation. Also, foaming can cause A/T fluid to escape from the transmission vents where it may be mistaken for a leak.
AC004042AD
STOPLIGHTSWITCH
M
AC002564
DATA LINK CONNECTOR (1)
AE
DATA LINK CONNECTOR (2)
N
ACX02008AC
FLUID LEVEL [mm (in)]
10 (0.4)
0 (0)
–10 (–0.4)
–20 (–0.8)
20 (0.8)
–30 (–1.2)
–40 (–1.6)40(104)
60(140)
80(176)
FLUID TEMPERATURE [˚C (˚F)]
DIPSTICK
AC000846AC
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-17
6. Securely insert the dipstick.NOTE: The A/T fluid should always be replaced under the following conditions:.
• When troubleshooting the transmission• When overhauling the transmission• When the A/T fluid is noticeably dirty or burnt (driving
under severe conditions)
A/T FLUID REPLACEMENTM1231101700131
If you have an A/T fluid changer, use it to replace the A/T fluid. If you do not have an A/T fluid changer, replace the A/T fluid by the following procedure.1. Disconnect the hose shown in the illustration which
connects the transmission and the oil cooler (inside the radiator). Place a container under the hose to collect the discharge.CAUTION
The engine should be stopped within one minute after it is started. If all the A/T fluid has drained out before then, the engine should be stopped at that point. 2. Start the engine and let the A/T fluid drain out.
(Running conditions: "N" range with engine idling.)
Discharge volume: Approximately 4.0 dm3 (4.2 quarts)3. Remove the drain plug from the bottom of the transmission
case to drain the A/T fluid.
Discharge volume: Approximately 2.0 dm3 (2.1 quarts)4. Install the drain plug with a new gasket, and tighten it to the
specified torque.Tightening torque: 39 N⋅m (29 ft-lb)
CAUTIONStop pouring if the full volume of A/T fluid can not be added.5. Add new A/T fluid (DIAMOND ATF SP III or equivalent)
through the oil filter tube.
Adding volume: Approximately 6.0 dm3 (6.3 quarts)6. Repeat the procedure in Step 2. (to pump out the rest of the
contaminated A/T fluid)7. Add new A/T fluid (DIAMOND ATF SP III or equivalent)
through the oil filler tube.
Adding volume: Approximately 4.0 dm3 (4.2 quarts)NOTE: Check for contamination or a burnt odor. If the A/T fluid is still contaminated or burnt, repeat Steps 6 and 7 before proceeding to Step 8.
AC004090AB
AC004089AB
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-18
8. Reconnect the hose which was disconnected in step 1 above, and firmly replace the dipstick.
9. Start the engine and run it at idle for one to two minutes.10.Move the selector lever through all positions, and then move
it to the "N" position.
11.Check that the A/T fluid level is at the "COLD" mark on the dipstick. If the level is less than this, add A/T fluid.
12.Drive the vehicle until the A/T fluid temperature rises to the normal operating temperature [70 − 80°C (158 − 176°F)], and then check the A/T fluid level again. The A/T fluid level must be at the "HOT" mark.NOTE: The A/T fluid temperature is measured with scan tool MB991502 (MUT-II).NOTE: The "COLD" level is for reference only; the "HOT" level should be regarded as the standard level.NOTE: If it takes some amount of time until the A/T fluid reaches its normal operating temperature [70 − 80 °C (158 − 176°F)], check the A/T fluid level by referring to the left dia-gram.
13.When the A/T fluid is less than the specified level, add A/T fluid.When the A/T fluid is greater than the specified level, drain the excess fluid through the drain plug to adjust the A/T fluid to the specified level.
14.Firmly insert the dipstick into the oil filler tube.
FLUSHING COOLERS AND TUBESM1231104800137
Required Special Tool:• MB995062: Flushing Tool
AC004090AB
AC000846AC
ACX02008AC
FLUID LEVEL [mm (in)]
10 (0.4)
0 (0)
–10 (–0.4)
–20 (–0.8)
20 (0.8)
–30 (–1.2)
–40 (–1.6)40(104)
60(140)
80(176)
FLUID TEMPERATURE [˚C (˚F)]
DIPSTICK
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-19
WARNING• Wear protective eyewear that meets the require-
ments of and ANSI Z87.1 − 1968 and OSHA. Wear standard industrial rubber gloves.
• Keep lighted cigarettes, sparks, flames, and other ignition sources away from the area to prevent the ignition of combustible liquids and gases. Keep a class B fire extinguisher in the area where the flushing tool will be used. Keep the area well venti-lated. Do not let flushing solvent come in contact with eyes or skin. If it does, flush with water for 15 to 20 seconds. Remove contaminated clothing and wash affected skin with soap and water. Seek med-ical attention.
When a transmission failure has contaminated the A/T fluid, the oil cooler(s) must be flushed. The cooler by-pass valve in the transmission must also be replaced. The torque converter must also be replaced with an exchange unit. This will ensure that metal particles or sludged A/T fluid are not later transferred back into the reconditioned (or replaced) transmission. There are two different procedures for flushing coolers and lines. The recommended procedure is to use special tool MB995062 Flushing Tool. The other procedure is to use a hand suction gun and mineral spirits.1. Remove the cover plate filler plug on special tool
MB995062. Fill the reservoir 1/2 to 3/4 full with fresh flushing solution. Flushing solvents are petroleum based solutions generally used to clean transmission components. Do not use solvents containing acids, water, gasoline, or any other corrosive liquids.
2. Reinstall the filler plug on special tool MB995062.3. Verify that the pump power switch is turned "OFF." Connect
the red alligator clip to the positive battery terminal. Connect the black alligator clip to a good ground.
4. Disconnect the cooler lines at the transmission.NOTE: When flushing the transmission cooler and lines, always reverse flush.
5. Connect the BLUE pressure line to the OUTLET line (from cooler.) cooler line.
6. Connect the CLEAR return line to the INLET line (to cooler.) cooler line.
7. Turn the pump "ON" for two to three minutes to flush the cooler(s) and lines. Monitor the pressure readings. Clear the return lines. Pressure readings should stabilize below 138 kPa (20 psi) for vehicles equipped with a single cooler and 208 kPa (30 psi) for vehicles equipped with dual coolers. If flow is intermittent or exceeds these pressures, replace the cooler(s).
8. Turn the pump "OFF."
AC004075ABFROM COOLER
TO COOLER
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-20
9. Disconnect the CLEAR suction line from the reservoir at the cover plate. Disconnect the CLEAR return line at the cover plate, and place it in a drain pan.
10.Turn the pump "ON" for 30 seconds to purge flushing solution from the cooler(s) and lines. Turn the pump "OFF."
11.Place the CLEAR suction line into a one quart container of DIAMOND ATF SP III or equivalent A/T fluid.
12.Turn the pump "ON" until all A/T fluid is removed from the one quart container and lines. This purges any residual cleaning solvent from the transmission cooler(s) and lines. Turn the pump "OFF."
13.Disconnect the alligator clips from the battery. Reconnect the flusher lines to the cover plate, and remove the flushing adapters from the cooler lines. Reconnect the cooler lines.
OIL COOLER FLOW CHECKM1231104900123
After the new or repaired transmission has been installed, fill to the proper level with DIAMOND ATF SP III or equivalent A/T fluid. The flow should be checked using the following proce-dure:
CAUTIONWith the fluid set at the proper level, A/T fluid collection should not exceed one quart or internal damage to the transmission may occur.1. Disconnect the OUTLET line (from cooler) at the
transmission and place a collecting container under the disconnected line.
2. Run the engine at curb idle speed with the shift selector in neutral.
3. If A/T fluid flow is intermittent or it takes more than 20 seconds to collect one quart of A/T fluid, replace the cooler.
4. If flow is within acceptable limits, reconnect the cooler line. Then fill the transmission to the proper level, using DIAMOND ATF SP III or equivalent A/T fluid.
TP SENSOR ADJUSTMENTM1231109600075
Refer to GROUP 13A − On-vehicle Service P.13Aa-20.
AC004075ABFROM COOLER
TO COOLER
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-21
PARK/NEUTRAL POSITION SWITCH CONTINUITY CHECK
M1231101900135
PARK/NEUTRAL POSITION SWITCH AND CONTROL CABLE ADJUSTMENT
M12311097001021. Set the selector lever to the "N" position.2. Loosen the control cable to manual control lever coupling
nut to free the cable and lever.3. Set the manual control lever to the neutral position.4. Loosen the park/neutral position switch body mounting bolts
and turn the park/neutral position switch body so the hole in the end of the manual control lever and the hole (cross section A − A in the figure on the left) in the flange of the park/neutral position switch body flange are aligned.NOTE: The park/neutral position switch body can be aligned by inserting a 5-mm diameter steel bar into the end hole of the manual control lever and the flange hole of the park/neu-tral position switch body.
5. Tighten the park/neutral position switch body mounting bolts to the specified torque. Be careful at this time that the switch body does not move.
Tightening torque: 10 − 12 N⋅m (89 − 106 in-lb)6. Gently pull the transmission control cable in the direction of
the arrow, until the cable is taut. Tighten the adjusting nut.Tightening torque: 24 N⋅m (18 ft-lb)
7. Check that the selector lever is in the "N" position.
ITEM TERMINAL CONNECTION OF TESTER
SPECIFIED CONDITION
P 1 − 7, 9 − 10 Less than 2 ohms.
R 7 − 8
N 2 − 7, 9 − 10
D 3 − 7
3 4 − 7
2 5 − 7
L 6 − 7
AC004044
PARK/NEUTRAL POSITIONSWITCH
AC
AC004076
PR
ND32L
AB
AC004077
A
A
MANUAL CONTROL LEVER, UPPER
TRANSMISSIONCONTROL CABLE
NEUTRALPOSITION
MANUALCONTROLLEVER, LOWER
ADJUSTINGNUT
MOUNTING BOLTS
SECTION A - A
24 N·m18 ft-lb
10 - 12 N·m89 - 106 ft-lb
MANUAL CONTROLLEVER, LOWER
PARK/NEUTRALPOSITIONSWITCH BODY
HOLE IN FLANGE
HOLE IN END
AB
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-22
8. Check that each position of the manual control lever matches each position of the selector lever using scan tool MB991502.
HIGH RANGE/LOW RANGE DETECTION SWITCH CHECK <V4A51>
M1231121100034Check for continuity between the terminal of the milk white con-nector and the transfer case.
TRANSFER LOW DETECTION SWITCH CHECK <V4A51>
M1231121200031Check for continuity between the terminal of the milk white con-nector and the transfer case.
TRANSFER CONTROL LEVER POSITION CONTINUITY4H Less than 2
ohms
Between 4H and 4L Open circuit
4L Less than 2 ohms
AC103400AB
ACX02191AF
HARNESS CONNECTOR: HIGH RANGE/LOW RANGE DETECTION SWITCH CONNECTOR SIDE
TRANSFER CONTROL LEVER POSITION CONTINUITY4L Less than 2
ohms
Other than 4L Open circuit
AC103400AC
ACX02191AG
HARNESS CONNECTOR: TRANSFER LOW DETECTION SWITCH SIDE
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-23
CENTER DIFFERENTIAL LOCK DETECTION SWITCH CHECK <V4A51>
M1231121300038Check for continuity between the terminal of the brown connec-tor and the transfer case.
CENTER DIFFERENTIAL LOCK OPERATION DETECTION SWITCH CHECK <V4A51>
M1231121400035Check for continuity between the terminal of the brown connec-tor and the transfer case.
TRANSFER CONTROL LEVER POSITION CONTINUITYL Less than 2
ohms
AWD Open circuit
AC103400AD
ACX02191AH
HARNESS CONNECTOR: CENTER DIFFERENTIAL LOCK DETECTION SWITCH SIDE
TRANSFER CONTROL LEVER POSITION CONTINUITY4H, 4L Less than 2
ohms
AWD Open circuit
AC103400AE
ACX02191AI
HARNESS CONNECTOR: CENTER DIFFERENTIAL LOCKOPERATION DETECTION SWITCH SIDE
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-24
TRANSFER OIL CHECK <V4A51>M1231112400082
1. Remove the filler plug.2. Check that the oil level is up to the lower edge of the filler
plug hole.3. Check that the oil is not noticeably dirty.4. Tighten the filler plug to the specified torque.
Tightening torque: 29 − 34 N⋅m (21 − 25 ft-lb)
TRANSFER OIL REPLACEMENT <V4A51>M1231112500089
1. Remove the filler plug.2. Remove the drain plug and discharge the oil.3. Tighten the drain plug to the specified torque.
Tightening torque: 29 − 34 N⋅m (21 − 25 ft-lb)4. Fill in oil to the bottom of the filler plug hole.
Specified oil: Gear oil SAE 75W − 90 or 75W − 85W conforming to API classification GL-4Quantity: 2.5 dm3 (2.6 quarts)
5. Tighten the filler plug to the specified torque.Tightening torque: 29 − 34 N⋅m (21 − 25 ft-lb)
SELECTOR LEVER OPERATION CHECKM1231001300233
1. Apply the parking brake, and check that the selector lever moves smoothly and accurately to each position.
2. Check that the engine starts when the selector lever is in the "N" or "P" position, and that it does not start when the selector lever is in any other position.
3. Start the engine, release the parking brake, and check that the vehicle moves forward when the selector lever is moved from the "N" position to the "D", "3", "2" or "L" position, and that the vehicle reverses when the selector lever is moved to the "R" position.
4. Stop the engine.5. Turn the ignition switch to the "ON" position, and check that
the backup lamp illuminates when the selector lever is shifted from the "P" to the "R" position.NOTE: The A/T mis-operation prevention mechanism pre-vents movement of the selector lever from the "P" position if the ignition switch is in a position other than "LOCK" (OFF) and the brake pedal is not depressed.
AC102278AK
FILLER PLUGTRANSFEROIL
FILLER PLUGHOLE
ACX01200AB
DRAIN PLUG
FILLER PLUG
AC004516
PUSHBUTTON
AD
THE SELECTOR LEVER MOVES WHEN THE BRAKE PEDAL IS DEPRESSED AND THE BUTTON IS PUSHED IN WITH THE IGNITION KEY IN ANY POSITION OTHER THAN THE "LOCK" (OFF) POSITION.
THE SELECTOR LEVER MOVES WITHOUT PUSHING THE BUTTON.
THE SELECTOR LEVER MOVES WHEN THE BUTTON IS PUSHED.
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-25
KEY INTERLOCK MECHANISM CHECKM1232000900224
1. Perform the following inspection.
2. When any of the above key interlock checks fail the inspection procedure, adjust the key interlock cable using the following procedure.(1) Remove the floor console. (Refer to GROUP 52A − Floor
Console P.52A-35.)(2) Shift the selector lever to the "P" position.(3) Turn the ignition key to the "LOCK" (OFF) position.(4) Disconnect the key interlock cable from the shift lock
cable retaining shaft on the lock cam.Loosen the lock nut on the key interlock cable housing mounting bracket.
Tightening torque: 12 N⋅m (106 in-lb)(5) Push the key interlock cable gently into the key interlock
cable housing until the cable movement stops and the cable end eye is aligned with the lock camshaft. Tighten the lock nut. Snap the cable end eye onto the lock cam shaft.
(6) After adjusting, recheck the key interlock cable operation. Replace the key interlock cable if it does not operate properly. (Refer to P.23Aa-36.)
(7) Install the floor console.
INSPECTION PROCEDURE
INSPECTION REQUIREMENT
INSPECTION ITEM (NORMAL CONDITION)
1 Brake pedal: Depressed
Ignition key position: "LOCK" (OFF) or removed
Unable to push in the selector lever push button and move the lever out of the "P" position.
2 Ignition key position: "ACC"
Able to push in the selector lever push button, move the lever out of the "P" position, and shift to any position.
3 Brake pedal: Not depressed
Selector lever: Other than "P" position
Unable to turn the ignition key to the "LOCK" (OFF) position.
4 Selector lever: "P" position Able to turn the ignition key to the "LOCK" (OFF) position.
AC004517AC
JAM NUT
LOCK CAM
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-26
SHIFT LOCK MECHANISM CHECKM1232001000213
1. Perform the following inspections.
2. When any of the above shift lock inspection procedures fail, adjust the shift lock cable as follows:(1) Remove the floor console. (Refer to GROUP 52A − Floor
Console P.52A-35.)(2) Shift the selector lever to the "P" position.(3) Loosen the lock nut on the shift lock cable.(4) Adjust the cable so that the end of the shift lock cable is
above the red line on the lock cam and tighten the locknut.
Tightening torque: 12 N⋅m (106 in-lb)(5) After adjusting, retest the shift lock cable operation.
Replace the shift lock cable if it does not operate properly. (Refer to P.23Aa-36.)
(6) Install the floor console.
AUTOMATIC TRANSMISSION CONTROL COMPONENT CHECK
CRANKSHAFT POSITION SENSOR CHECKM1231102700101
Refer to GROUP 13A, Diagnosis − Check Procedure with OscilloscopeP.13Ab-49.
TP SENSOR CHECKM1231102500129
Refer to GROUP 13A, On-vehicle Service − Throttle Position Sensor Check P.13Aa-20.
INSPECTION PROCEDURE
CHECK CONTENTS CHECK ITEM (NORMAL CONDITION)
1 Brake pedal: Not depressed
Ignition key position: "ACC"
When the selector lever push button is depressed, the selector lever can not be shifted out of the "P" position.
2 Brake pedal: Depressed
When the selector lever push button is depressed, the selector lever can be shifted smoothly to other positions.
3 Brake pedal: Not depressed
When the selector lever push button is depressed, the selector lever can be shifted smoothly from the "R" position to the "P position.
AC004518
JAM NUTLOCK CAM
SHIFT LOCKCABLE
AC
MARKING (RED)
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-27
A/T FLUID TEMPERATURE SENSOR CHECKM1231104500136
1. Remove the A/T fluid temperature sensor.2. Measure the resistance between terminals No.1 and No.2 of
the A/T fluid temperature sensor connector.Standard value:
3. If the A/T fluid temperature sensor resistance is outside the specified range and the "A/T TEMP" indicator light is illuminating, replace the A/T fluid temperature sensor.NOTE: The "A/T TEMP" indicator light on the combination meter illuminating when the temperature reaches approxi-mately 125°C (257°F) or greater, and then stops flashing when the temperature drops below approximately 115°C (238°F).
PARK/NEUTRAL POSITION SWITCH CHECKM1231112600086
Refer to P.23Aa-21.
STOPLIGHT SWITCH CHECKM1231103000105
Refer to GROUP 35A, On-vehicle Service − Stoplight Switch Check P.35A-20.
VEHICLE SPEED SENSOR CHECKM1231109800091
Refer to GROUP 54, Combination Meters Assembly and Vehi-cle Speed Sensor P.54-108.
DUAL PRESSURE SWITCH CHECKM1231109900098
Refer to GROUP 55A, On-vehicle Service − Dual Pressure Switch Check P.55-22.
A/T FLUID TEMPERATURE
RESISTANCE
0°C (32°F) 16.7 − 20.5 kΩ
20°C (68°F) 7.3 − 8.9 kΩ
40°C (104°F) 3.4 − 4.2 kΩ
60°C (140°F) 1.9 − 2.2 kΩ
80°C (176°F) 1.0 − 1.2 kΩ
100°C (212°F) 0.57 − 0.69 kΩ
AC100601AB
ATF
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION23Aa-28
A/T CONTROL RELAY CHECKM1231110300090
1. Remove the A/T control relay.
2. Use jumper wires to connect the A/T control relay terminal 2 to the negative battery terminal and terminal 4 to the positive battery terminal.
3. Check for continuity between A/T control relay terminals 1 and terminal 3 when the jumper wires are connected to and disconnected from the battery.
4. If there is any problem with the A/T control relay, replace it.
SOLENOID VALVE CHECKM1231110400097
1. Use scan tool MB991502 to measure the A/T fluid temperature. The desired temperature setting for performing the solenoid valve check is 20°C (68°F).
2. Remove the solenoid valve harness and A/T fluid temperature sensor connector.
3. Measure the resistance between the solenoid valve terminals.
4. The measured resistance of the solenoid valve when the A/T fluid temperature is 20°C (68°F) should match the specified resistance on the chart below.
Standard value:
JUMPER WIRE CONTINUITY BETWEEN TERMINALS NO.1 AND NO.3
Connected Less than 2 ohms
Disconnected Open circuit
AC002590AD
A/T CONTROLRELAY
AC100555
1 23 4
AC
TERMINAL NO.
ITEM RESISTANCE
7 - 10 Torque converter clutch solenoid valve
2.7 − 3.4 Ω [at 20°C (68°F)]
6 - 10 Low-reverse solenoid valve
4 - 9 Second solenoid valve
3 - 9 Underdrive solenoid valve
5 - 9 Overdrive solenoid valve
AC103397
7 10531 2 4 6
98
SOLENOID VALVEHARNESS AND A/T FLUIDTEMPERATURE SENSORCONNECTOR
AB
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ON-VEHICLE SERVICEAUTOMATIC TRANSMISSION 23Aa-29
5. If the solenoid valve resistance is within the specified range, check the power supply and the ground circuits.
6. If the solenoid valve resistance is not within the specified range, drain the A/T fluid and remove the valve body cover.
7. Disconnect the connector of any solenoid valves that are not within the specified range.
8. Measure the resistance between terminals 1 and 2 of any solenoid valve that was not within the specified range.
Specified resistance:2.7 − 3.4 Ω [at 20°C (68°F)]
9. If the resistance is not within the specified range, replace the solenoid valve.
10.If the resistance is within the specified range, check the wiring harness between the affected A/T control solenoid valve assembly and the solenoid valve. If a problem is not found in the above steps, check the solenoid valve O-rings and replace them if necessary.
AC100378
12
AB
ACX01206AC
TORQUE CONVERTER CLUTCH SOLENOID VALVE UNDERDRIVE
SOLENOID VALVE
LOW-REVERSE SOLENOID VALVE
OVERDRIVE SOLENOID VALVE
SECOND SOLENOID VALVE
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TRANSMISSION CONTROLAUTOMATIC TRANSMISSION23Aa-30
TRANSMISSION CONTROLREMOVAL AND INSTALLATION
M1231117900082
Pre-removal and Post-installation Operation Floor Console Removal and Installation (Refer to GROUP 52A, Floor Console P.52A-35.)
AC004519
TRANSFER CONTROL LEVERMOUNTING BOLT
APPLY SEALANT TOCONTACT SURFACEWITH TRANSFERCONTROL LEVER
APPLY SEALANTTO BOTH SIDES
SEALANT: 3M™ AAD PART NO.8663 OR EQUIVALENT
SEALANT: 3M™ AAD PART NO.8730 OR EQUIVALENT
SEALANT: 3M™ AAD PART NO.8663 OR EQUIVALENT
5 N·m44 in-lb 12 N·m
106 in-lb
12 N·m106 in-lb
12 N·m106 in-lb
24 N·m18 ft-lb
24 N·m18 ft-lb
12 N·m106 in-lb
19 N·m15 ft-lb
13
12
17
16151413
10
1
11
5
7
3
9
4
8
16 15
N
N
AC
2
N
6
SELECTOR LEVER ASSEMBLY REMOVAL STEPS
>>D<< 1. KEY INTERLOCK CABLE CONNECTION
>>C<< 2. SHIFT LOCK CABLE CONNECTION
3. TRANSMISSION CONTROL CABLE ASSEMBLY CONNECTION (SELECTOR LEVER ASSEMBLY SIDE)
4. SELECTOR LEVER
TRANSMISSION CONTROL CABLE ASSEMBLY REMOVAL STEPS
3. TRANSMISSION CONTROL CABLE ASSEMBLY CONNECTION (SELECTOR LEVER ASSEMBLY SIDE)
5. TRANSMISSION CONTROL UPPER LEVER
6. TRANSMISSION CONTROL CABLE ASSEMBLY CONNECTION (TRANSMISSION SIDE)
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TRANSMISSION CONTROLAUTOMATIC TRANSMISSION 23Aa-31
INSTALLATION SERVICE POINTS.
>>A<< DUST COVER INSTALLATIONInstall the dust cover so that it faces as shown in the illustration.
.
>>B<< TRANSMISSION CONTROL CABLE ASSEMBLY INSTALLATION1. Shift the selector lever to the "N" position.2. Place the transmission side lever in the "N" position.3. Connect the transmission control cable to the selector lever.4. Connect the upper lever to the transmission control cable.
7. CABLE END BRACKET8. CABLE BRACKET <V4A51>
>>B<< 9. TRANSMISSION CONTROL CABLE ASSEMBLY
TRANSFER CONTROL LEVER ASSEMBLY REMOVAL STEPS
10. RETAINER>>A<< 11. DUST COVER
12. TRANSFER CONTROL LEVER ASSEMBLY
13. GASKET14. STOPPER PLATE15. GASKET16. SPRING COVER SUPPORT17. TRANSFER CONTROL LEVER
TRANSMISSION CONTROL CABLE ASSEMBLY REMOVAL STEPS (Continued)
AC004520
FRONT
AB
AC004521AC
L23DN
RP
PARK/NEUTRALPOSITION SWITCH
MANUALCONTROLLEVER
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TRANSMISSION CONTROLAUTOMATIC TRANSMISSION23Aa-32
5. Temporarily tighten the nut while pressing the transmission control upper lever lightly in the direction of the arrow.
6. Tighten the nut with the specified torque.Tightening torque: 24 N⋅m (18 ft-lb)
.
>>C<< SHIFT LOCK CABLE (SELECTOR LEVER SIDE) INSTALLATION1. Shift the selector lever to the "P" position.2. Fasten the shift lock cable at the position where the end of
the shift lock cable is above the red line on the lock cam.3. Tighten the nut with the specified torque.
Tightening torque: 12 N⋅m (106 in-lb)4. Check that the shift lock mechanism operates normally.
(Refer to P.23Aa-26.)
.
>>D<< KEY INTERLOCK CABLE (SELECTOR LEVER SIDE) INSTALLATION1. Shift the selector lever to the "P" position.2. Turn the ignition switch to the "LOCK" (OFF) position.3. Slide the washer and spring toward the lock cam, insert the
cable into the stand off bracket and release the spring.4. Lightly push the key interlock cable into the key interlock
cable housing until the cable movement stops and the cable end eye is aligned with the shaft on the lock cam. Tighten the lock nut. Snap the cable end eye onto the shaft of the lock cam.
Tightening torque: 12 N⋅m (106 in-lb)5. Check that the key interlock mechanism operates normally.
(Refer to P.23Aa-25.)
AC004522
TRANSMISSIONCONTROL UPPER LEVER
24 N·m18 ft-lb
AB
AC004518
JAM NUTLOCK CAM
SHIFT LOCKCABLE
AC
MARKING (RED)
AC004517AC
JAM NUT
LOCK CAM
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TRANSMISSION CONTROLAUTOMATIC TRANSMISSION 23Aa-33
INSPECTIONM1231118000082
Move the connector in the direction of the arrow and remove it from the bracket.POSITION INDICATOR LIGHT CHECK
TESTER CONNECTION SPECIFIED CONDITION1 − 2 Less than 2 ohms
AC004523 AB
BRACKET
CONNECTOR
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TRANSMISSION CONTROLAUTOMATIC TRANSMISSION23Aa-34
DISASSEMBLY AND ASSEMBLYM1231006800211
AC004524
2.0 N·m18 in-lb
1.5 N·m13 in-lb
12 N·m106 in-lb
12 N·m106 in-lb
17
7
5
4
61513
16
14
8
9
12
10
1110
2 31
AC
1.5 N·m13 in-lb
DISASSEMBLY STEPS1. SHIFT KNOB2. BUTTON3. SPRING4. INDICATOR PANEL ASSEMBLY5. POSITION INDICATOR SOCKET
ASSEMBLY6. BULB7. LOCK CAM
>>A<< 8. SLEEVE
9. LEVER ASSEMBLY10. SHIFT BUSHING11. INNER PIPE12. COLLAR13. PIN14. SPRING15. BALL SUPPORT16. BALL17. BRACKET
DISASSEMBLY STEPS
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TRANSMISSION CONTROLAUTOMATIC TRANSMISSION 23Aa-35
INSTALLATION SERVICE POINT.
>>A<< SLEEVE INSTALLATIONShift the selector lever to the "N" position, then turn the sleeve so that the clearance between the sleeve and lever assembly end is within the standard value.
Standard value: 16.0 − 16.8 mm (0.62 − 0.66 inch)
AC004525AC
SLEEVE
LEVERASSEMBLY
16.0 - 16.8 mm(0.62 - 0.66 inch)
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A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMSAUTOMATIC TRANSMISSION23Aa-36
A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMSREMOVAL AND INSTALLATION
M1232001200239
CAUTIONWhen removing and installing the transmission control cable and shift lock cable unit, be careful not to hit the SRS-ECU.
Pre-removal and Post-installation Operation Floor Console Removal and Installation (Refer to GROUP 52A, Floor Console P.52A-35.)
AC004527
12 N·m106 in-lb
12 N·m106 in-lb
1
34
5
6
7
8
9N
AB
2
KEY INTERLOCK CABLE REMOVAL STEPS
1. KNEE PROTECTOR ASSEMBLY2. LOWER COLUMN COVER
ASSEMBLY>>C<< 3. KEY INTERLOCK CABLE
CONNECTION (SELECTOR LEVER SIDE)
4. COVER>>B<< 5. KEY INTERLOCK CABLE
CONNECTION (STEERING LOCK CYLINDER SIDE)
6. KEY INTERLOCK CABLE
SHIFT LOCK CABLE REMOVAL STEPS
>>A<< 7. SHIFT LOCK CABLE CONNECTION (SELECTOR LEVER SIDE)
8. SHIFT LOCK CABLE CONNECTION (BRAKE PEDAL SIDE)
9. SHIFT LOCK CABLE
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A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMSAUTOMATIC TRANSMISSION 23Aa-37
INSTALLATION SERVICE POINTS.
>>A<< SHIFT LOCK CABLE (SELECTOR LEVER SIDE) INSTALLATION1. Shift the selector lever to the "P" position.2. Fasten the shift lock cable at the position where the end of
the shift lock cable is above the red line on the lock cam.3. Tighten the nut with the specified torque.
Tightening torque: 12 N⋅m (106 in-lb)4. Check that the shift lock mechanism operates normally.
(Refer to P.23Aa-26.)
.
>>B<< KEY INTERLOCK CABLE (STEERING LOCK CYLINDER SIDE) INSTALLATIONTurn the ignition switch to "LOCK" position, and then install the key interlock cable..
>>C<< KEY INTERLOCK CABLE (SELECTOR LEVER SIDE) INSTALLATION1. Shift the selector lever to the "P" position.2. Turn the ignition switch to the "LOCK" (OFF) position.3. Slide the washer and spring toward the lock cam, insert the
cable into the stand off bracket and release the spring.4. Lightly push the key interlock cable into the key interlock
cable housing until the cable movement stops and the cable end eye is aligned with the shaft on the lock cam. Tighten the lock nut. Snap the cable end eye onto the shaft of the lock cam.
Tightening torque: 12 N⋅m (106 in-lb)5. Check that the key interlock mechanism operates normally.
(Refer to P.23Aa-25.)
AC004518
JAM NUTLOCK CAM
SHIFT LOCKCABLE
AC
MARKING (RED)
AC004517AC
JAM NUT
LOCK CAM
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TRANSMISSION AND TRANSFER ASSEMBLYAUTOMATIC TRANSMISSION23Aa-38
TRANSMISSION AND TRANSFER ASSEMBLYREMOVAL AND INSTALLATION
M1231117600081
<R4A51>Pre-removal Operation• Under Cover Removal (Refer to GROUP 42, Under Cover
P.42-164.)• Transmission Fluid Draining
(Refer to GROUP 00, Maintenance Service - Automatic Transmission Fluid P.00-48.)
• Propeller Shaft Removal (Refer to GROUP 25, Propeller Shaft P.25-6.)
• Catalytic Converter and Front Exhaust Pipe Removal (Refer to GROUP 15, Exhaust Pipe and Main Muffler P.15-14.)
Post-installation Operation• Catalytic Converter and Front Exhaust Pipe Installation
(Refer to GROUP 15, Exhaust Pipe and Main Muffler P.15-14.)
• Propeller Shaft Installation (Refer to GROUP 25, Propeller Shaft P.25-6.)
• Transmission Fluid Supplying (Refer to GROUP 00, Maintenance Service - Automatic Transmission Fluid P.00-48.)
• Under Cover Installation (Refer to GROUP 42, Under Cover P.42-164.)
• Selector Lever Operation Check (Refer to P.23Aa-24.)
AC004528
44 N·m32 ft-lb 74 N·m
55 ft-lb
24 N·m18 ft-lb
35 N·m26 ft-lb
22 N·m16 ft-lb
88 N·m65 ft-lb
64 N·m47 ft-lb
20 - 24 N·m15 - 18 ft-lb
39 - 44 N·m29 - 32 ft-lb
45 - 52 N·m33 - 38 ft-lb
10
1
176 2
1112
13 14
15
18
4
5
8
3
16
N
N
AC
24 N·m18 ft-lb
31 N·m23 ft-lb
N
7
9
REMOVAL STEPS1. FILLER TUBE ASSEMBLY2. DUST SHIELD COVER
>>B<< 3. TRANSMISSION CONTROL CABLE CONNECTION
4. GROUND CABLE5. SPEED SENSOR CONNECTION6. PARK/NEUTRAL POSITION
SWITCH CONNECTION7. SOLENOID VALVE
CONNECTION
8. OUTPUT SHAFT SPEED SENSOR CONNECTION
9. INPUT SHAFT SPEED SENSOR CONNECTION
10. OIL COOLER TUBE11. STARTER COVER
<<A>> 12. STARTER MOTOR13. EXHAUST PIPE BRACKET14. TRANSMISSION STAY <3.0L>
REMOVAL STEPS (Continued)
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TRANSMISSION AND TRANSFER ASSEMBLYAUTOMATIC TRANSMISSION 23Aa-39
<V4A51>
<<B>> 15. TORQUE CONVERTER AND DRIVE PLATE CONNECTION BOLTS
• SUPPORT THE TRANSMISSION WITH A TRANSMISSION JACK
16. NO.2 CROSSMEMBER17. AIR BREATHER PIPE
ASSEMBLY>>A<< 18. TRANSMISSION ASSEMBLY
REMOVAL STEPS (Continued)
Pre-removal Operation• Transfer Case Protector and Under Cover Removal
(Refer to GROUP 42, Under Cover P.42-164.)• Transmission Fluid Draining
(Refer to GROUP 00, Maintenance Service - Automatic Transmission Fluid P.00-48.)
• Propeller Shaft Removal (Refer to GROUP 25, Propeller Shaft P.25-6.)
• Catalytic Converter and Front Exhaust Pipe Removal (Refer to GROUP 15, Exhaust Pipe and Main Muffler P.15-14.)
Post-installation Operation• Catalytic Converter and Front Exhaust Pipe Installation
(Refer to GROUP 15, Exhaust Pipe and Main Muffler P.15-14.)
• Propeller Shaft Installation (Refer to GROUP 25, Propeller Shaft P.25-6.)
• Transmission Fluid Supplying (Refer to GROUP 00, Maintenance Service - Automatic Transmission Fluid P.00-48.)
• Transfer Case Protector and Under Cover Installation (Refer to GROUP 42, Under Cover P.42-164.)
• Selector Lever Operation Check (Refer to P.23Aa-24.)
AC004531AC004531
24 N·m18 ft-lb
35 N·m26 ft-lb
44 N·m32 ft-lb
24 N·m18 ft-lb
31 N·m23 ft-lb
1 2
3
4
59
11
1213
14
15
N
AC
68
7N
39 - 44 N·m29 - 32 ft-lb
N
10
12 N·m106 in-lb
REMOVAL STEPS1. FILLER TUBE ASSEMBLY2. DUST SHIELD COVER
>>B<< 3. TRANSMISSION CONTROL CABLE CONNECTION
4. GROUND CABLE CONNECTION5. SPEED SENSOR CONNECTION
6. HIGH/LOW DETECTION SWITCH CONNECTION
7. PARK/NEUTRAL POSITION SWITCH CONNECTION
8. SOLENOID VALVE CONNECTION
REMOVAL STEPS (Continued)
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TRANSMISSION AND TRANSFER ASSEMBLYAUTOMATIC TRANSMISSION23Aa-40
9. OUTPUT SHAFT SPEED SENSOR CONNECTION
10. INPUT SHAFT SPEED SENSOR CONNECTION
11. OIL COOLER TUBE12. STARTER COVER
<<A>> 13. STARTER MOTOR14. EXHAUST PIPE BRACKET15. TRANSMISSION STAY <3.0L>
REMOVAL STEPS (Continued)
AC004532
45 - 52 N·m33 - 38 ft-lb
88 N·m65 ft-lb
64 N·m47 ft-lb
49 N·m36 ft-lb
44 N·m33 ft-lb
64 N·m47 ft-lb
35 N·m26 ft-lb
74 N·m55 ft-lb
16
17
20
19
18
AC
<<B>> 16. TORQUE CONVERTER AND DRIVE PLATE CONNECTION BOLTS
17. DYNAMIC DAMPER ASSEMBLY• SUPPORT THE TRANSMISSION
WITH A TRANSMISSION JACK
18. NO.2 CROSSMEMBER19. REAR ENGINE MOUNT
BRACKET>>A<< 20. TRANSMISSION ASSEMBLY
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TRANSMISSION AND TRANSFER ASSEMBLYAUTOMATIC TRANSMISSION 23Aa-41
REMOVAL SERVICE POINTS.
<<A>> STARTER MOTOR REMOVALRemove the starter motor with the starter motor harness still connected, and secure it inside the engine compartment..
<<B>> TORQUE CONVERTER AND DRIVE PLATE CONNECTION BOLT REMOVAL1. Remove the six connection bolts while turning the
crankshaft.2. Press in the torque converter to the transmission side so
that the torque converter does not remain inserted in the engine side of the drive plate.
INSTALLATION SERVICE POINTS.
>>A<< TRANSMISSION ASSEMBLY INSTALLATION1. Press the torque converter into the transmission properly,
and then assembly into the engine.Reference value: 20.9 mm (0.8 inch)
2. The size of the mounting bolts are different. So be sure not to confuse them.
.
>>B<< TRANSMISSION CONTROL CABLE INSTALLATIONCAUTION
Clamp the control cable socket into the transmission bracket securely.
BOLT DIAMETER × LENGTH mm (inch)A 12 × 40 (0.5 × 1.6)
B 12 × 55 (0.5 × 2.2)
AC004836AD
20.9 mm (0.8 in)
AC004529 AB
A A
B B
AC004530
BRACKET
SOCKET
AB
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OIL PANAUTOMATIC TRANSMISSION23Aa-42
OIL PANREMOVAL AND INSTALLATION
M1231120700107
Required Special Tool: • MD998727: Oil Pan Remover
Pre-removal and Post-installation Operation• Transmission Fluid Draining (Refer to GROUP 00, Maintenance Service - Automatic Transmission Fluid P.00-
48.)• Under Cover Removal and Installation.
AA000041AC
11 N·m98 in-lb
49 N·m36 ft-lb
64 N·m47 ft-lb
64 N·m47 ft-lb
64 N·m47 ft-lb
20 - 24 N·m15 - 18 ft-lb
22 N·m16 ft-lb
2
2
3
N
1
<R4A51>
<V4A51>
22 N·m16 ft-lb
44 N·m32 ft-lb
REMOVAL STEPS1. OIL LEVEL GAUGE ASSEMBLY• SUPPORT THE TRANSMISSION
WITH A TRANSMISSION JACK
2. NO.2 CROSSMEMBER<<A>> >>A<< 3. OIL PAN
REMOVAL STEPS (Continued)
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OIL PANAUTOMATIC TRANSMISSION 23Aa-43
REMOVAL SERVICE POINT.
<<A>> OIL PAN REMOVALAfter removing the oil pan mounting bolts, remove the oil pan with special tool MD998727 and a brass bar.
INSTALLATION SERVICE POINT.
>>A<< OIL PAN INSTALLATION1. Remove sealant from the oil pan and transmission case
mating surfaces.2. Degrease the sealant-coated surface and the transmission
mating surface.3. Clean the magnet and install it in the hollow of the oil pan
base.NOTE: If the oil pan is replaced, reuse the cleaned magnet.
4. Apply MITSUBISHI GENUINE PART number MD166584 or equivalent around the gasket surface of the oil pan as specified in the illustration.NOTE: The sealant should be applied in a continuous bead approximately 3 mm (0.1 inch) in diameter.
5. Tighten the mounting bolts to the specified torque.Tightening torque: 11 N⋅m (98 in-lb)
ACX00366
MD998727 MD998727
AB
AA000042AB
MAGNET
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TRANSMISSION FLUID COOLER, HOSE, PIPEAUTOMATIC TRANSMISSION23Aa-44
TRANSMISSION FLUID COOLER, HOSE, PIPEREMOVAL AND INSTALLATION
M1231118400079
Pre-removal and Post-installation Operations• Transmission Fluid Draining and Refilling (Refer to P.23Aa-17.)• Skid Plate and Under Cover Removal and Installation• Radiator Grille Removal and Installation (Refer to Group 51 − Grill, Molding and Garnish Removal and Installation
P.51-6.)
AC004533 AB
39 - 44 N·m29 - 33 ft-lb
39 - 44 N·m29 - 33 ft-lb
<3.0L ENGINE>
<3.5L ENGINE>
1 1
11
2
4
35
3
2
4
5
NN
NN
REMOVAL STEPS>>B<< 1. EYE BOLT>>B<< 2. RETURN TUBE>>B<< 3. FEED TUBE
>>A<< 4. RETURN HOSE>>A<< 5. FEED HOSE
REMOVAL STEPS (Continued)
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TRANSMISSION FLUID COOLER, HOSE, PIPEAUTOMATIC TRANSMISSION 23Aa-45
INSTALLATION SERVICE POINTS.
>>A<< FEED HOSE/RETURN HOSE INSTALLATION1. Insert the hoses up to bulge A in the illustration on the
nipples and tubes.2. Attach the hose clips at the positions shown in the
illustration being sure that they are not on top of bulge B shown in the illustration.
.
>>B<< FEED TUBE/RETURN TUBE/EYE BOLT INSTALLATIONFit the eye bolts to the transmission and transfer assembly loosely, locate the tubes with clamps, and then tighten the eye bolts to the specified torque. Tighten the clamps in order of their location, the closest to the transmission and transfer assembly first.
AC004534
RADIATOR SIDE
A
A
B
B
RETURN TUBE OR FEED TUBE SIDE
MARKHOSE CLIP
HOSE
HOSE CLIPMARK
HOSE 3 mm (0.12 in)
3 mm (0.12 in)
AB
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POWERTRAIN CONTROL MODULE (PCM)AUTOMATIC TRANSMISSION23Aa-46
POWERTRAIN CONTROL MODULE (PCM)REMOVAL AND INSTALLATION
M1231121600040
Pre-removal and Post-installation Operation• Glove Box Assembly Removal and Installation (Refer to GROUP 54A, Instrument Panel Assembly P.52A-32.)• Cowl Side Trim Removal and Installation (Refer to GROUP 54A, Trims P.52A-36.)
AC103796AC
2
1
5 N·m44 in-lb
5 N·m44 in-lb
9 N·m80 in-lb
1. POWERTRAIN CONTROL MODULE (PCM)
2. POWERTRAIN CONTROL MODULE (PCM) BRACKET
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4WD INDICATOR ECUAUTOMATIC TRANSMISSION 23Aa-47
4WD INDICATOR ECUREMOVAL AND INSTALLATION
M1231010900073
INSPECTIONM1231119600043
4WD INDICATOR-ECU1. Measure the voltage with the control unit and harness still
connected.2. Ground terminal (8) and then measure the terminal voltage.
AC004536
12
3
AB
REMOVAL STEPS1. FRONT SCUFF PLATE
ATTACHING SCREW2. COWL SIDE TRIM3. 4WD INDICATOR-ECU
REMOVAL STEPS (Continued)
AC004538 AB
A
VIEW A
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SPECIFICATIONSAUTOMATIC TRANSMISSION23Aa-48
SPECIFICATIONSFASTENER TIGHTENING SPECIFICATIONS
M1231104700107
ITEM SPECIFICATIONPark/neutral position switch body mounting bolts 10 − 12N⋅m (89 − 106 in-lb)A/T key interlock and shift lock mechanismsKey interlock cable 12 N⋅m (106 in-lb)Shift lock cable 12 N⋅m (106 in-lb)Oil panNo.2 crossmember 64 N⋅m (47 ft-lb)Oil pan 11 N⋅m (98 in-lb)Transmission assembly to No.2 crossmember <R4A51> 22 N⋅m (16 ft-lb)Transmission assembly to No.2 crossmember <V4A51> 49 N⋅m (36 ft-lb)Powertrain control module (PCM)Powertrain control module (PCM) M6 5 N⋅m (44 in-lb)
Ground 9 N⋅m (80 in-lb)Powertrain control module (PCM) bracket 5 N⋅m (44 in-lb)Transmission assemblyAir breather pipe assembly 74 N⋅m (55 ft-lb)Dynamic damper <V4A51> 35 N⋅m (26 ft-lb)Eye bolt 39 − 44 N⋅m (29 − 32 ft-lb)Filler tube assembly (engine side) 24 N⋅m (18 ft-lb)Filler tube assembly (transmission side) 44 N⋅m (32 ft-lb)No.2 crossmember 64 N⋅m (47 ft-lb)Rear engine mount bracket 44 N⋅m (33 ft-lb)Rear engine support insulator 20 − 24 N⋅m (15 − 18 ft-lb)Starter 31 N⋅m (23 ft-lb)Torque converter and drive plate connection bolt 45 − 52 N⋅m (33 − 38 ft-lb)Transmission assembly (engine to transmission) 88 N⋅m (65 ft-lb)Transmission assembly (transmission to engine) 74 N⋅m (55 ft-lb)Transmission assembly to No.2 crossmember <R4A51> 22 N⋅m (16 ft-lb)Transmission assembly to No.2 crossmember <V4A51> 49 N⋅m (36 ft-lb)Transmission control cable connection nut 24 N⋅m (18 ft-lb)Transmission stay 35 N⋅m (26 ft-lb)
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SPECIFICATIONSAUTOMATIC TRANSMISSION 23Aa-49
SERVICE SPECIFICATIONSM1231100300088
Transmission controlCable bracket 12 N⋅m (106 in-lb)Cable end bracket 24 N⋅m (18 ft-lb)Indicator assembly 1.5 N⋅m (13 in-lb)Key interlock cable 12 N⋅m (106 in-lb)Retainer 5 N⋅m (44 in-lb)Selector lever assembly 12 N⋅m (106 in-lb)Selector lever to bracket 12 N⋅m (106 in-lb)Shift lock cable 12 N⋅m (106 in-lb)Stopper plate 19 N⋅m (15 ft-lb)Shift knob attaching screw 2.0 N⋅m (18 in-lb)Transmission control upper lever 24 N⋅m (18 ft-lb)Transmission oil coolerEye bolt 39 − 44 N⋅m (29 − 32 ft-lb)
ITEM SPECIFICATION
ITEM STANDARD VALUEClearance between the sleeve and lever assembly end mm (in) 16.0 − 16.8 (0.62 − 0.66)Clearance between the detent plate and pin mm (in) 0.1 − 0.9 mm (0.004 −
0.040)Line pressure kPa (psi) 1,010 − 1,050 (147 − 152)A/T fluid temperature sensor kΩ at 0°C (32°F) 16.7 − 20.5
at 20°C (68°F) 7.3 − 8.9at 40°C (104°F) 3.4 − 4.2at 60°C (140°F) 1.9 − 2.2at 80°C (176°F) 1.0 − 1.2at 100°C (212°F) 0.57 − 0.69
Resistance of torque converter clutch control solenoid valve coil [at 20°C (68°F)] Ω
2.7 − 3.4
Resistance of low-reverse solenoid valve coil [at 20°C (68°F)] Ω 2.7 − 3.4Resistance of second solenoid valve coil [at 20°C (68°F)] Ω 2.7 − 3.4Resistance of underdrive solenoid valve coil [at 20°C (68°F)] Ω 2.7 − 3.4Resistance of overdrive solenoid valve coil [at 20°C (68°F)] Ω 2.7 − 3.4Stall speed r/min 3.0L Engine 2,000 − 2,600
3.5L Engine 2,300 − 2,900
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SPECIFICATIONSAUTOMATIC TRANSMISSION23Aa-50
LUBRICANTSM1231100400104
SEALANT AND ADHESIVEM1231100500093
ITEM SPECIFIED LUBRICANT SPECIFICATION
Automatic transmission fluid dm3 (qt) DIAMOND ATF SP III or equivalent 9.3 (9.8)
Transfer oil dm3 (qt) Gear oil SAE 75W-90 or 75W-85W conforming to API classification GL-4
2.8 (3.0)
ITEM SPECIFIED SEALANT AND ADHESIVEOil panOil pan MITSUBISHI GENUINE Part No. MR166584 or equivalentTransmission controlGasket 3M AAD part No.8663 or equivalentStopper plateTransfer control lever mounting bolt 3M AAD part No.8730 or equivalent
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