1999 F -150/250 Workshop Manual 26

Glass, Frames and Mechanisms

Refer to Wiring Diagrams Cell 20, Starting System for schematic and connector information.

Refer to Wiring Diagrams Cell 59, Generic Electronic Module (GEM) for schematic and connector information.

Refer to Wiring Diagrams Cell 100, Power Windows for schematic and connector information.

Inspection and Verification

1. The power windows system is a generic electronic module (GEM) controlled system. For additional information regarding GEM diagnostic strategies, for additional information, REFER to Section 419-10.

2. Verify the customer concern by operating the power windows system.

3. Visually inspect for obvious signs of mechanical and electrical damage.

Visual Inspection Chart

4. If the concern remains after the inspection connect the New Generation STAR (NGS) Tester to the data link connector (DLC) located beneath the instrument panel and select the

vehicle to be tested from the NGS menu. If the NGS does not communicate with the vehicle:

� Check that the program card is correctly installed.

� Check the connections to the vehicle.

� Check the ignition switch position.

5. If the NGS still does not communicate with the vehicle, refer to the New Generation STAR Tester manual.

6. Carry out the DATA LINK DIAGNOSTIC TEST. If the NGS responds with:

� CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Section 418-00.

� NO RESP/NOT EQUIP for GEM, go to Pinpoint Test A.

� SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the generic electronic module (GEM).

7. If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index.

8. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart.

GEM Diagnostic Trouble Code (DTC) Index

GEM Diagnostic Trouble Code (DTC) Index

SECTION 501-11: Glass, Frames and Mechanisms 1999 F-150/250 Workshop Manual

DIAGNOSIS AND TESTING Procedure revision date: 02/03/1999

Special Tool(s)

New Generation STAR (NGS) Tester 418-F048 (007-00500) or equivalent

73 Digital Multimeter 105-R0051 or equivalent

Mechanical Electrical

� Window regulator electric drive � Window glass

� Central junction box (CJB) Fuse: � 6 (5A) � 8 (5A) � 15 (5A) � 20 (5A)

� Battery junction box (BJB) Fuse: � 103 (50A) � 110 (30A)

� Relay(s) � CJB � Window regulator control switch � Window regulator electric drive � GEM � Circuitry � Damaged wiring harness � Loose or corroded connector(s)

DTC Description Source Action

B1302 Accessory Delay Relay Coil Circuit Failure (Only Set if Battery Saver Relay Has No Faults)

GEM GO to Pinpoint Test B.

B1304 Accessory Delay Relay Coil Circuit Short to Battery GEM GO to Pinpoint Test B.

B1313 Battery Saver Relay Coil Circuit Failure GEM REFER to Section 417-02.

B1315 Battery Saver Relay Coil Circuit Short to Battery GEM REFER to Section 417-02.

261999 F-150/250 Workshop Manual

5/11/2011http://www.fordtechservice.dealerconnection.com/pubs/content/~WSX1/~MUS~LEN/19/S...

B1317 Battery Voltage High, Greater Than 18 Volts GEM REFER to Section 414-00.

B1318 Battery Voltage Low, Less Than 10 Volts GEM REFER to Section 414-00.

B1322 LF Door Open Warning Circuit Short to Ground, or Door Open GEM REFER to Section 417-02.

B1323 Door Ajar Lamp Circuit Failure GEM REFER to Section 413-01A.

B1325 Door Ajar Lamp Circuit Short to Battery GEM REFER to Section 413-01A.

B1330 RF Door Open Warning Circuit Short to Ground, or Door Open GEM REFER to Section 417-02.

B1340 Chime Request Input Circuit Short to Ground GEM REFER to Section 413-09.

B1342 ECU Is Defective, RAM/ROM Check Sum Failure GEM CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new GEM. REFER to Section 419-10.

B1352 Key-In-Ignition Circuit Failure GEM REFER to Section 413-09.

B1355 Ignition RUN Circuit Failure GEM REFER to Section 211-05.

B1359 Ignition RUN/ACC Circuit Failure GEM REFER to Section 211-05.

B1365 Ignition START Circuit Short to Battery GEM REFER to Section 211-05.

B1371 Interior Lamp Relay Coil Circuit Failure GEM REFER to Section 417-02.

B1373 Interior Lamp Relay Coil Short to Battery GEM REFER to Section 417-02.

B1398 LF One Touch Down Power Window Relay Coil Circuit Failure GEM GO to Pinpoint Test C.

B1400 LF One Touch Down Power Window Relay Coil Circuit Short to Battery GEM GO to Pinpoint Test C.

B1405 LF Power Window Switch Down Circuit Short to Battery GEM GO to Pinpoint Test C.

B1408 LF Power Window Switch Up Circuit Short to Power GEM GO to Pinpoint Test C.

B1410 LF Power Window Motor Excessive Current Draw GEM GO to Pinpoint Test C.

B1426 Seat Belt Lamp Circuit Short to Battery GEM REFER to Section 413-01A.

B1428 Seat Belt Lamp Circuit Failure GEM REFER to Section 413-01A.

B1431 Front Wiper RUN/PARK Relay Coil Circuit Failure GEM REFER to Section 501-16.

B1432 Front Wiper RUN/PARK Relay Coil Circuit Short to Battery GEM REFER to Section 501-16.

B1434 Front Wiper HI/LO Speed Relay Coil Circuit Failure GEM REFER to Section 501-16.

B1436 Front Wiper HI/LO Speed Relay Coil Circuit Short to Battery GEM REFER to Section 501-16.

B1438 Front Wiper Mode Select Switch Circuit Failure GEM REFER to Section 501-16.

B1441 Front Wiper Mode Select Switch Circuit Short to Ground GEM REFER to Section 501-16.

B1446 Front Wiper Motor PARK Sense Circuit Failure GEM REFER to Section 501-16.

B1450 Wiper Wash/Delay Switch Circuit Failure GEM REFER to Section 501-16.

B1453 Wiper Wash/Delay Switch Circuit Short to Ground GEM REFER to Section 501-16.

B1458 Washer Pump Motor Relay Coil Circuit Failure GEM REFER to Section 501-16.

B1460 Washer Pump Motor Relay Coil Circuit Short to Battery GEM REFER to Section 501-16.

B1462 Seat Belt Switch Circuit Open or Seat Belt Buckled GEM REFER to Section 413-09.

B1466 Wiper HI/LO Speed Not Switching GEM REFER to Section 501-16.

B1473 Wiper LO Speed Circuit Motor Failure (Wiper Energized and Park Sense Not Seen)

GEM REFER to Section 501-16.

B1476 Wiper HI Speed Circuit Motor Failure (Wiper Energized and Park Sense Not Seen)

GEM REFER to Section 501-16.

B1483 Brake Pedal Input Circuit Failure (No Brake Input Seen for 10 Ignition Cycles)

GEM REFER to Section 308-07A.

B1485 Brake Pedal Input Circuit Battery Short GEM REFER to Section 308-07A.

B1577 Headlamp/Parking Lamp Park Input Circuit Short to Battery GEM REFER to Section 413-09.

B1610 Illuminated Entry Input Short to Ground GEM REFER to Section 417-02.

B1840 Front Wiper Power Circuit Failure GEM REFER to Section 501-16.

P0500 Vehicle Speed Signal Not Detected GEM REFER to Section 310-03or Section 308-07Aor Section 501-16.

P1804 4-Wheel Drive HI Indicator Circuit Failure GEM REFER to Section 413-01A.

P1806 4-Wheel Drive HI Indicator Short to Battery GEM REFER to Section 413-01A.

P1812 4-Wheel Drive Mode Select Switch Circuit Failure GEM REFER to Section 308-07A.

P1815 4-Wheel Drive Mode Select Switch Short Circuit to Ground GEM REFER to Section 308-07A.

P1819 Neutral Safety Switch Short to Ground GEM REFER to Section 308-07A.

P1820 Transfer Case Clockwise Shift Relay (LO to HI) Coil Circuit Failure GEM REFER to Section 308-07A.

P1822 Transfer Case Clockwise Shift Relay (LO to HI) Coil Short to Battery GEM REFER to Section 308-07A.

P1824 4-Wheel Drive Electric Clutch Relay Circuit Failure GEM REFER to Section 308-07A.

P1826 4-Wheel Drive Electric Clutch Relay Circuit Short to Battery GEM REFER to Section 308-07A.

P1828 Transfer Case Counterclockwise Shift Relay (HI to LO) Coil Circuit Failure GEM REFER to Section 308-07A.

P1830 Transfer Case Counterclockwise Shift Relay (HI to LO) Coil Short to Battery


P1832 Front Axle 4-Wheel Drive Solenoid Circuit Failure (Differential Lock-Up Solenoid)


P1834 Front Axle 4-Wheel Drive (Differential Lock-Up Solenoid) Short to Battery GEM REFER to Section 308-07A.

P1838 Transfer Case Shift Motor Circuit Failure GEM REFER to Section 308-07A.

P1846 Transfer Case Contact Plate A Circuit Failure GEM REFER to Section 308-07A.

P1850 Transfer Case Contact Plate B Circuit Failure GEM REFER to Section 308-07A.

P1854 Transfer Case Contact Plate C Circuit Failure GEM REFER to Section 308-07A.

P1858 Transfer Case Contact Plate D Circuit Failure GEM REFER to Section 308-07A.

P1866 Transfer Case System Concern - Repair Required GEM REFER to Section 308-07A.

P1867 Transfer Case Contact Plate General Circuit Failure GEM REFER to Section 308-07A.

P1876 Transfer Case 2-Wheel Drive Solenoid Circuit Failure GEM REFER to Section 308-07A.



GEM Parameter Identification (PID) Index

GEM Parameter Identification (PID) Index

GEM Active Command Index

GEM Active Command Index

P1877 Transfer Case 2-Wheel Drive Solenoid Circuit Short to Battery GEM REFER to Section 308-07A.

P1891 Transfer Case Contact Plate Ground Return Open Circuit GEM REFER to Section 308-07A.

PID Description Expected Values

ACCDLY Accessory Delay Relay Coil Circuit ON---, OFF---, ON-B-, OFFO-G

AXL_DIS 4WD Center Axle Disconnect ON---, OFF---, ON-B-, OFFO-G

AXLSTAT 4WD Center Axle Disconnect ON, OFF

BATSAV Battery Saver Relay Circuit ON---, OFF---, ON-B-, OFFO-G

BOO_GEM Brake Pedal Position (BPP) Switch Input ACTIVE, notACT

CHIMERQ External Chime Request ON, OFF

CLTCHSW Clutch Pedal Position Switch ACTIVE, notACT

DD_HAND Driver's Door Handle ACTIVE, notACT

D_DN_SW Window Regulator Control Down Switch State OFF, DOWN

D_PWRLY One Touch Down Relay Coil Circuit Status OFF, ON

D_PWAMP Window Regulator Electric Drive Current 0.25 amp increments

D_PWPK Window Regulator Electric Drive Current 0.25 amp increments

DRAJR_L Door Ajar Indicator Circuit ON---, OFF---, ON-B-, OFFO-G

D_DR_SW LH Door Open Warning Lamp Switch CLOSED, AJAR

D_SBLT LH Safety Belt IN, OUT

HALLPWR Hall Effect Speed Sensor Power ON---, OFF---, ON-B-, OFFO-G

ILLE_SW Illuminated Entry Input (From RAP Module) ON, OFF

IGN_GEM Ignition Switch Status START, RUN, OFF, ACCY

IGN_KEY Ignition-Key-In/Out IN, OUT

INTLMP Interior Lamp Relay Circuit ON---, OFF---, ON-B-, OFFO-G

MTR_CCW HI to LO Shift Relay Status ON---, OFF---, ON-B-, OFFO-G

MTR_CW LO to HI Shift Relay Status ON---, OFF---, ON-B-, OFFO-G

NTRL_SW Transmission Range Sensor Input NTRL, notNTRL

OTD_SW One Touch Down Window State OFF, DOWN

P_DR_SW RH Door Open Warning Lamp Switch CLOSED, AJAR

PARK_SW Headlamp Control Input Switch ON, OFF

PLATE_A Transfer Case Contact Plate Switch A OPEN, CLOSED

PLATE_B Transfer Case Contact Plate Switch B OPEN, CLOSED

PLATE_C Transfer Case Contact Plate Switch C OPEN, CLOSED

PLATE_D Transfer Case Contact Plate Switch D OPEN, CLOSED

PLATEPW Contact Plate Ground Output ON, OFF

SBLTMP Seat Belt Warning Indicator ON---, OFF---, ON-B-, OFFO-G

SPEEDWP Speed Dependent Wiper Function ACTIVE, notACT

VBATGEM Battery 0.1 Volt DC per count

VSS_GEM Vehicle Speed Sensor 0-255 KPH

WASHRLY Washer Pump Relay Circuit ON---, OFF---, ON-B-, OFFO-G

WASH_SW Front Washer Relay Output ON---, OFF---, ON-B-, OFFO-G

WPHISP Front Wiper HI/LO Relay Status ON---, OFF---, ON-B-, OFFO-G

WPMODE Front Wiper/Washer Switch Status WASH, OPEN, INVLD, OFF, INTVL 1-7, LOW, HIGH, PULSE

WPPK_PK Front Wiper Park-to-Park Time 0-65 ms

WPPRKSW Front Wiper Motor Switch Status PARKED, notPRK

WPRUN Front Wiper Run/Park Relay Status ON---, OFF---, ON-B-, OFFO-G

2WDSOL 2WD Solenoid Status ON---, OFF---, ON-B-, OFFO-G, OPEN

4WDCLST Four Wheel Drive Clutch Relay Control ON---, OFF---, ON-B-, OFFO-G

4WDHIGH 4WD High Indicator Status ON---, OFF---, ON-B-, OFFO-G

4WDSGEM 4WD Mode 2WD, 4WDLOW, 4WDHIGH, OFFO-G, OPEN

4WDSOL 4WD Solenoid Status ON---, OFF---, ON-B-, OFFO-G, OPEN

Active command Display Action

4-WHEEL ELECTRONIC SHIFT AXLE DSCN ON, OFF

4-WHEEL ELECTRONIC SHIFT AXLE ENGG ON, OFF

4-WHEEL ELECTRONIC SHIFT CW/CCW ON, OFF

4-WHEEL ELECTRONIC SHIFT HIGH LAMP ON, OFF

4-WHEEL ELECTRONIC SHIFT PLATE PWR ON, OFF

4-WHEEL ELECTRONIC SHIFT SHFT CLCH ON, OFF



Symptom Chart

NOTE: Refer to the wiring diagrams for connector numbers stated in the pinpoint tests.

Pinpoint Tests

CAUTION: Disconnect the battery before removing and installing the generic electronic module (GEM) or its connectors. Failure to follow this caution will result in the GEM storing many erroneous DTCs and it may exhibit erratic operation after installation.

CAUTION: Be careful when probing the CJB, battery junction box, or any connectors. Damage will result to the connector receptacle if the probe being used is too large.

NOTE: If continuous diagnostic trouble codes (DTCs) are retrieved and the symptom is not present when carrying out the pinpoint tests, an intermittent concern may be the cause. Always check for loose or corroded connections.

NOTE: Complete the entire pinpoint test related to the symptom before installing the GEM.

PINPOINT TEST A: NO COMMUNICATION WITH THE GENERIC ELECTRONIC MODULE

BATTERY SAVER BATT SAVR ON, OFF

FRONT WINDSHIELD WIPER SPEED RLY ON, OFF

FRONT WINDSHIELD WIPER WASH RLY ON, OFF

FRONT WINDSHIELD WIPER WIPER RLY ON, OFF

INTERIOR COURTESY LAMPS INT LAMPS ON, OFF

MODULE SLEEP — —

ONE TOUCH DOWN AND ACCESSORY DELAY ACCY RLY ON, OFF

ONE TOUCH DOWN AND ACCESSORY DELAY ONE TOUCH ON, OFF

PID LATCH PID LATCH ON, OFF

WARNING LAMPS AND CHIME AJAR LAMP ON, OFF

WARNING LAMPS AND CHIME CHIME ON, OFF

WARNING LAMPS AND CHIME SBLT LAMP ON, OFF

Symptom Chart

Condition Possible Sources Action

� No communication with the generic electronic module � CJB Fuse 6 (5A), 8 (5A), 15 (5A), and 20 (5A). � Circuitry. � GEM.

� GO to Pinpoint Test A.

� All power windows are inoperative � CJB Fuse 6 (5A), 8 (5A), 15 (5A), and 20 (5A). � BJB Fuse 103 (50A), and 110 (30A). � Circuitry. � Battery saver relay. � CJB. � Accessory delay relay. � LH window regulator control switch (14529). � GEM.

� GO to Pinpoint Test B.

� A single power window is inoperative — LH � Circuitry. � CJB. � One touch down relay. � LH window regulator control switch. � LH window regulator electric drive (23394). � GEM.

� GO to Pinpoint Test C.

� A single power window is inoperative — RH � Circuitry. � LH window regulator control switch. � RH window regulator control switch. � RH window regulator electric drive.

� GO to Pinpoint Test D.

� The one touch down feature is inoperative � Circuitry. � LH window regulator control switch. � CJB. � GEM.

� GO to Pinpoint Test C.

� The delayed accessory does not turn off � Circuitry. � Delayed accessory relay.

� GO to Pinpoint Test E.

� The delayed accessory is inoperative/does not operate correctly � Circuitry. � Delayed accessory relay. � CJB.

� GO to Pinpoint Test B.

CONDITIONS DETAILS/RESULTS/ACTIONS

A1 CHECK THE IGNITION STATES — MONITOR THE GEM PID IGN_ GEM

NGS

NOTE: If the vehicle is equipped with a manual transmission, depress the clutch pedal when turning the ignition



switch to START.

Monitor the GEM PID IGN_GEM while turning the ignition switch through the START, RUN, OFF, and ACC positions.

� Do the GEM PID values agree with the ignition switch positions?

Yes GO to A2.

No REPAIR the ignition circuit (RUN/ACC: Circuit 297 [BK/LG], RUN: Circuit 1040 [RD/LB], START: Circuit 32 [RD/LB] or Circuit 481 [GY/YE]) in question. CLEAR the DTCs. REPEAT the self-test.

A2 CHECK CIRCUIT 1052 (TN/BK) FOR VOLTAGE

CJB C243

Measure the voltage between CJB C243 Pin 11, Circuit 1052 (TN/BK), harness side and ground.

� Is the voltage greater than 10 volts?

Yes GO to A3.

No REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

A3 CHECK CJB FOR VOLTAGE

GEM C267

CJB C243

Measure the voltage between GEM C267 Pin 4 (component side), and ground; and between GEM C267 Pin 16 (component side), and ground.

� Are the voltages greater than 10 volts?

Yes GO to A4.

No INSTALL a new CJB. CLEAR the DTCs. REPEAT the self-test.

A4 CHECK THE CJB

CJB C243

Measure the resistance between CJB C243 Pin 11 (component side), and GEM C267 Pin 4 (component side);



PINPOINT TEST B: ALL POWER WINDOWS ARE INOPERATIVE

and between CJB C243 pin (component side), and GEM C267 Pin 16 (component side).

� Are the resistances less than 5 ohms?

Yes GO to A5.


A5 CHECK CIRCUIT 875 (BK/LB) FOR CONTINUITY TO GROUND

GEM/CTM C239

Measure the resistance between GEM/CTM C239 Pin 26, Circuit 875 (BK/LB), harness side and ground.

� Is the resistance less than 5 ohms?

Yes GO to A6.


A6 CHECK CIRCUIT 875 (BK/LB) FOR OPEN

Measure the resistance between GEM/CTM C239 Pin 14, Circuit 875 (BK/LB), harness side and ground.


Yes REFER to Section 418-00.



B1 CHECK THE IGNITION STATES — MONITOR THE GEM PID IGN_GEM

NGS

NOTE: If the vehicle is equipped with a manual transmission, depress the clutch pedal when turning the ignition switch (11572) to START.

Monitor the GEM PID IGN_GEM while turning the ignition switch through the START, RUN, OFF, and ACC



positions.

� Do the PID values agree with the ignition switch positions?

Yes GO to B2.

No REPAIR the ignition circuit (RUN/ACC: Circuit 297 [BK/LG], RUN: Circuit 1040 [RD/LB], START: Circuit 32 [RD/LB] or Circuit 481 [GY/YE]) in question. CLEAR the DTCs. REPEAT the self-test.

B2 RETRIEVE THE RECORDED DTC(S) RESULTS FROM BOTH CONTINUOUS AND ON-DEMAND SELF-TESTS — GEM

Use the recorded GEM DTCs from the continuous and on-demand self-tests.

� Are any GEM DTCs recorded?

Yes If DTC B1302, GO to B9 . If DTC B1304, GO to B9 . If DTC B1313, GO to B3 . If DTC B1315, GO to B3 . If DTC B1342, INSTALL a new GEM; for additional information, REFER to Section 419-10. CLEAR the DTCs. REPEAT the self-test.

No GO to B3.

B3 CHECK THE BATTERY SAVER RELAY COIL CIRCUIT — MONITOR THE GEM PID BATSAV

Monitor the GEM PID BATSAV while triggering the GEM active command BATTERY SAVER ON and OFF.

� Does the GEM PID BATSAV value agree with the command mode?

Yes GO to B12.

No If the GEM PID BATSAV displays OFFO-G, GO to B4 . If the GEM PID BATSAV displays ON-B-, GO to B7 .

B4 CHECK THE VOLTAGE TO THE BATTERY SAVER RELAY COIL

Battery Saver Relay

Measure the voltage between the battery saver relay connector Pin 1, and ground.


Yes GO to B5.


B5 CHECK THE BATTERY SAVER RELAY

Carry out the Battery Saver Rrelay Component Test; for additional information, refer to Wiring Diagrams Cell 149, Component Testing.

� Is the battery saver relay OK?

Yes GO to B6.

No



INSTALL a new battery saver relay. CLEAR the DTCs. REPEAT the self-test.

B6 CHECK THE CJB BETWEEN THE BATTERY SAVER RELAY AND THE GEM

GEM C267

Measure the resistance between the battery saver relay connector Pin 2, and GEM C267 Pin 1 (component side).


Yes INSTALL a new GEM; for additional information, REFER to Section 419-10. CLEAR the DTCs. REPEAT the self-test.



Battery Saver Relay

Carry out the battery saver relay component test; for additional information, refer to Wiring Diagrams Cell 149, Component Testing.


Yes GO to B8.

No INSTALL a new battery saver relay. CLEAR the DTCs. REPEAT the self-test.

B8 CHECK THE BATTERY SAVER RELAY COIL CIRCUIT FOR SHORT TO POWER

GEM C267

Measure the voltage between battery saver relay connector Pin 2, and ground.

� Is any voltage indicated?

Yes INSTALL a new CJB. CLEAR the DTCs. REPEAT the self-test.

No INSTALL a new GEM; for additional information, REFER to Section 419-10. CLEAR the DTCs. REPEAT the self-test.

B9 CHECK THE ACCESSORY DELAY RELAY COIL CIRCUIT — MONITOR THE GEM PID ACCDLY



Monitor the GEM PID ACCDLY while triggering the GEM active command DELAYED ACCESSORY ON and OFF.

� Does the GEM PID ACCDLY value agree with the command mode?

Yes GO to B15.

No If the GEM PID ACCDLY displays OFFO-G, GO to B10 . If the GEM PID ACCDLY displays ON-B-, GO to B13 .

B10 CHECK THE VOLTAGE TO THE ACCESSORY DELAY RELAY COIL

Accessory Delay Relay

Measure the voltage between accessory delay relay connector Pin 86, and ground.


Yes GO to B11.

No GO to B22.

B11 CHECK THE ACCESSORY DELAY RELAY

Carry out the Accessory Delay Relay Component Test; for additional information, refer to Wiring Diagrams Cell 149, Component Testing.

� Is the accessory delay relay OK?

Yes GO to B12.

No INSTALL a new accessory delay relay. CLEAR the DTCs. REPEAT the self-test.

B12 CHECK THE CJB BETWEEN THE GEM AND THE ACCESSORY DELAY RELAY

GEM C267

Measure the resistance between the accessory delay relay connector Pin 85 and GEM C267 Pin 11 (component side).








Carry out the Accessory Delay Relay Component Test; for additional information, refer to Wiring Diagrams Cell 149, Components Testing.


Yes GO to B14.


B14 CHECK THE ACCESSORY DELAY RELAY COIL CIRCUIT FOR SHORT TO POWER

GEM C267





B15 CHECK THE ACCESSORY DELAY RELAY SWITCHING CIRCUIT

One Touch Down Relay

Trigger the GEM active command DELAYED ACCESSORY to ON.

Measure the voltage between one touch down relay connector Pin 85, and ground.




Yes RECONNECT the one touch down relay. GO to B19 .

No GO to B16.

B16 CHECK THE VOLTAGE TO THE ACCESSORY DELAY RELAY


Measure the voltage between accessory delay relay connector pin 30, and ground.


Yes GO to B18.

No GO to B17.

B17 CHECK THE VOLTAGE TO THE CJB — CIRCUIT 170 (RD/LB)

CJB C242

Measure the voltage between CJB C242 Pin 25, Circuit 170 (RD/LB), harness side and ground.







Carry out the Accessory Delay Relay Component Test; for additional information, refer to Wiring Diagrams Cell 149, Component Testing.




B19 CHECK THE VOLTAGE TO THE LH POWER WINDOW SWITCH — CIRCUIT 400 (LB/BK)

C509


Measure the voltage between LH power window switch C509 Pin 4, Circuit 400 (LB/BK), harness side and ground.


Yes GO to B21.

No GO to B20.

B20 CHECK CIRCUIT 400 (LB/BK) FOR OPEN

CJB C242

Measure the resistance between CJB C242 Pin 10, Circuit 400 (LB/BK), harness side and LH power window switch C509 Pin 4, Circuit 400 (LB/BK), harness side.




B21 CHECK THE GROUND TO THE LH POWER WINDOW SWITCH — CIRCUIT 57 (BK)



PINPOINT TEST C: A SINGLE POWER WINDOW IS INOPERATIVE — LH

LH Power Window Switch C510

Measure the resistance between LH power window switch C510 Pin 5, Circuit 57 (BK), harness side and ground.


Yes INSTALL a new LH power window switch; for additional information, REFER to Switch—Window Regulator Control. CLEAR the DTCs. REPEAT the self-test.



Carry out the Battery Saver Relay Component Test; for additional information, refer to Wiring Diagrams Cell 149, Components Testing.



No INSTALL a new battery saver relay. CLEAR the DTCs. REPEAT the self-test.


C1 RETRIEVE THE RECORDED DTC(S) RESULTS FROM BOTH CONTINUOUS AND ON-DEMAND SELF-TESTS — GEM

Use the recorded GEM DTCs from the continuous and on-demand self-tests.

� Are any GEM DTCs recorded?

Yes If DTC B1398, GO to C2 . If DTC B1400, GO to C2 . If DTC B1405, GO to C8 . If DTC B1342, INSTALL a new GEM; for additional information, REFER to Section 419-10. CLEAR the DTCs. REPEAT the self-test.

No GO to C2.

C2 CHECK THE ONE TOUCH DOWN RELAY COIL CIRCUIT — MONITOR THE GEM PID D_PWRLY


Monitor the GEM PID D_PWRLY while triggering the GEM active command ONE TOUCH DOWN ON and OFF.

� Does the GEM PID D_PWRLY value agree with the command mode?



Yes GO to C8.

No If the GEM PID D_PWRLY displays OFFO-G, GO to C3 . If the GEM PID P_PWRLY displays ON-B-, GO to C6 .

C3 CHECK THE ONE TOUCH DOWN RELAY


Carry out the One Touch Down Relay Component Test; for additional information, refer to Wiring Diagrams Cell 149, Component Testing.

� Is the one touch down relay OK?

Yes GO to C4.

No INSTALL a new one touch down relay. CLEAR the DTCs. REPEAT the self-test.

C4 CHECK THE CJB BETWEEN THE ACCESSORY DELAY RELAY AND THE ONE TOUCH DOWN RELAY


Measure the resistance between accessory delay relay connector Pin 87 and one touch down relay connector Pin 85.


Yes GO to C5.


C5 CHECK THE CJB BETWEEN THE ONE TOUCH DOWN RELAY COIL SIDE AND THE GEM

GEM C267

Measure the resistance between the one touch down relay connector Pin 86 and GEM C267 Pin 2 (component side); and between one touch down relay connector Pin 86 and ground.

� Is the resistance less than 5 ohms between one touch down relay and CJB, and greater than 10,000

ohms between the one touch down relay and ground?



C6 CHECK THE ONE TOUCH DOWN RELAY




Carry out the one touch down relay component test; for additional information, refer to Wiring Diagrams Cell 149, Component Testing.

� Is the one touch down relay OK?

Yes GO to C7.

No INSTALL a new one touch down relay. CLEAR the DTCs. REPEAT the self-test.

C7 CHECK THE ONE TOUCH DOWN RELAY COIL CIRCUIT FOR SHORT TO POWER

GEM C267

Measure the voltage between one touch down relay connector Pin 86, and ground.




C8 CHECK THE LH WINDOW UP AND DOWN INPUTS — MONITOR THE GEM PIDS D_DN_SW AND D_UP_SW

Monitor the GEM PIDs D_UP_SW, D_DN_SW and OTD_SW while pressing the up, down and AUTO positions on the LH window regulator control switch.

Compare the GEM PIDs with the LH Window Regulator Control Switch Inputs Table. For additional information, REFER to Description and Operation, Switch — Window Regulator Control.

� Do the PIDs agree with the switch positions and the LH Window Regulator Control Switch Inputs

Table?

Yes GO to C16.

No GO to C9.

C9 CHECK THE VOLTAGE TO THE LH POWER WINDOW SWITCH — CIRCUIT 400 (LB/BK)





Measure the voltage between LH power window switch C509 Pin 4, Circuit 400 (LB/BK), harness side and ground.


Yes GO to C10.


C10 CHECK THE LH POWER WINDOW SWITCH

Monitor the GEM PIDs D_DN_SW, and OTD_SW.

Connect a fused (10A) jumper wire (one at a time) between LH power window switch C509 Pins as follows:

LH Window Regulator Control Switch Circuit

C509 Pin 4 and C509 Pin 1 400 (LB/BK) and 995 (GY)

C509 Pin 4 and C509 Pin 3 400 (LB/BK) and 991 (TN/LB)

� Do the GEM PIDs D_DN_SW and OTD_SW indicate DOWN?

Yes INSTALL a new LH window regulator control switch; for additional information, REFER to Switch—Window Regulator Control. CLEAR the DTCs. REPEAT the self-test.

No If the GEM PID D_DN_SW, or OTD_SW indicated OFF when UP or DOWN was expected in C8 and C10, GO to C11 . If the GEM PID D_DN_SW, or OTD_SW indicated UP or DOWN when OFF was expected in C8 and C10, GO to C12 .

C11 CHECK CIRCUITS 991 (TN/LB), AND 995 (GY) FOR AN OPEN AND SHORT TO GROUND

CJB C243

Measure the resistance between LH power window switch C509 Pin 3, Circuit 991 (TN/LB), harness side and CJB C243 Pin 10, Circuit 991 (TN/LB), harness side; and between LH power window switch C509 Pin 3, Circuit 991 (TN/LB), harness side and ground.

Measure the resistance between LH power window switch C509 Pin 1, Circuit 995 (GY), harness side and CJB C243 Pin 28, Circuit 995 (GY), harness side; and between the LH power window switch C509 Pin 1, Circuit 995 (GY), harness side and ground.



� Are the resistances less than 5 ohms between the CJB and the LH power window switch, and greater

than 10,000 ohms between the LH power window switch, and ground?

Yes GO to C13.

No REPAIR Circuit 991 (TN/LB), and Circuit 995 (GY) as necessary. CLEAR the DTCs. REPEAT the self-test.

C12 CHECK CIRCUITS 991 (TN/LB), AND 995 (GY) FOR SHORT TO POWER

CJB C243

Measure the voltage between LH power window switch C509 Pin 3, Circuit 991 (TN/LB), harness side and ground.

Measure the voltage between LH power window switch C509 Pin 1, Circuit 995 (GY), harness side and ground.

� Are any voltages indicated?

Yes REPAIR Circuit 991 (TN/LB), and Circuit 995 (GY) as necessary. CLEAR the DTCs. REPEAT the self-test.

No GO to C15.

C13 CHECK THE CIRCUIT BETWEEN THE CJB AND THE GEM FOR OPEN

GEM C267

Measure the resistance between CJB C243 Pin 10 (component side) and GEM C267 Pin 8 (component side).



Measure the resistance between CJB C243 Pin 28 (component side) and GEM C267 Pin 9 (component side).

� Are the resistances 5 ohms or less?

Yes GO to C14.


C14 CHECK THE CIRCUIT BETWEEN THE CJB AND THE GEM FOR SHORT TO GROUND

Measure the resistance between GEM C267 Pin 8 (component side) and ground.

Measure the resistance between GEM C267 Pin 9 (component side) and ground.

� Are the resistances greater than 10,000 ohms?

Yes INSTALL a new GEM; for additional information, REFER to Section 419-10. REPEAT the self-test.


C15 CHECK THE CIRCUIT BETWEEN THE CJB AND THE GEM FOR SHORT TO POWER

Measure the voltage between GEM C267 Pin 8 (component side) and ground.



Measure the voltage between GEM C267 Pin 9 (component side) and ground.




C16 CHECK THE VOLTAGE TO LH POWER WINDOW MOTOR DRIVE DOWN — CIRCUIT 996 (OG/WH)

LH Power Window Motor C506

Trigger the GEM active command ONE TOUCH DOWN to ON.


Measure the voltage between LH power window motor C506, Circuit 996 (OG/WH), harness side and ground.


Yes GO to C20.

No EXIT the GEM active command mode. GO to C17 .

C17 CHECK THE DOWN CIRCUIT 996 (OG/WH) TO THE LH WINDOW REGULATOR ELECTRIC DRIVE FOR OPEN


Measure the resistance between one touch down relay connector Pin 30, and LH power window motor C506,



Circuit 996 (OG/WH), harness side.


Yes GO to C19.

No GO to C18.

C18 CHECK CIRCUIT 996 (OG/WH) FOR OPEN

CJB C242

Measure the resistance between CJB C242 Pin 24, Circuit 996 (OG/WH), harness side and LH power window motor C506, Circuit 996 (OG/WH), harness side.




C19 CHECK THE ONE TOUCH DOWN RELAY SWITCHING CIRCUIT


Measure the resistance between one touch down relay connector Pin 87 and accessory delay relay connector Pin 87.


Yes INSTALL a new one touch down relay. CLEAR the DTCs. REPEAT the self-test.


C20 CHECK THE GROUND TO THE LH POWER WINDOW MOTOR

Trigger the GEM active command ONE TOUCH DOWN to OFF.



Measure the resistance between LH power window motor C506, Circuit 996 (OG/WH), harness side and ground.


Yes GO to C23.

No GO to C21.

C21 CHECK THE GROUND TO THE ONE TOUCH DOWN RELAY


Measure the resistance between one touch down relay connector Pin 87A and ground.


Yes INSTALL a new one touch down relay. CLEAR the DTCs. REPEAT the self-test.

No GO to C22.

C22 CHECK CIRCUIT 57 (BK) FOR OPEN

CJB C243

Measure the resistance between CJB C243 Pin 24, Circuit 57 (BK), harness side and ground.




C23 CHECK THE VOLTAGE TO THE LH POWER WINDOW MOTOR — CIRCUIT 992 (WH/BK)



PINPOINT TEST D: A SINGLE POWER WINDOW IS INOPERATIVE — RH

Measure the voltage between LH power window motor C506, Circuit 992 (WH/BK), harness side and ground, while depressing the UP position on the LH power window switch.


Yes GO to C24.


C24 CHECK CIRCUIT 992 (WH/BK) FOR OPEN

Measure the resistance between LH power window motor C506, Circuit 992 (WH/BK), harness side and ground.


Yes INSTALL a new LH power window motor; for additional information, REFER to Window Regulator. CLEAR the DTCs. REPEAT the self-test.

No INSTALL a new LH power window switch; for additional information, REFER to Switch—Window Regulator Control. CLEAR the DTCs. REPEAT the self-test.


D1 CHECK OPERATION OF RH POWER WINDOW

Operate the RH power window from both window regulator control switches.

� Does the RH window operate from either switch in any direction?

Yes If the RH window operates in both directions from the RH window regulator control switch and is inoperative in one or both directions for the LH window regulator control switch, INSTALL a new LH regulator control switch. CLEAR the DTCs. REPEAT the self-test. If the RH window operates in both directions from the LH window regulator control switch and is inoperative in one direction from the RH window regulator control switch, INSTALL a new RH window regulator control switch. CLEAR the DTCs. REPEAT the self-test. If the RH window operates in both directions from the LH window regulator control switch and is inoperative in both directions from the RH window regulator control switch, GO to D2 . If the RH window operates in only one direction from the RH window regulator control switch and is inoperative in both directions from the LH window regulator control switch, GO to D3 .

No If the RH window is inoperative from both window regulator control switches, GO to D5 .



If unable to confirm operation of RH window, GO to D4 .

D2 CHECK THE VOLTAGE TO THE RH POWER WINDOW SWITCH — CIRCUIT 400 (LB/BK)

RH Window Regulator Control Switch C609

Measure the voltage between RH power window switch C609 Pin 4, Circuit 400 (LB/BK), harness side and ground.


Yes INSTALL a new RH window regulator control switch; for additional information, REFER to Switch—Window Regulator Control. REPEAT the self-test.


D3 CHECK CIRCUITS 313 (WH/YE) AND 314 (TN/LB) FOR OPEN — RH WINDOW INOPERATIVE FROM LH POWER WINDOW SWITCH


Measure the resistance between LH power window switch C510 Pin 1, Circuit 313 (WH/YE), harness side and RH power window switch C609 Pin 2, Circuit 313 (WH/YE), harness side.

Measure the resistance between LH power window switch C510 Pin 2, Circuit 314 (TN/LB), harness side and RH power window switch C609 Pin 7, Circuit 314 (TN/LB), harness side.


Yes INSTALL a new LH window regulator control switch; for additional information, REFER to Switch—Window Regulator Control. CLEAR the DTCs. REPEAT the self-test.

No REPAIR Circuit 313 (WH/YE) and Circuit 314 (TN/LB) as necessary. CLEAR the DTCs. REPEAT the self-test.



D4 CHECK CIRCUITS 313 (WH/YE) AND 314 (TN/LB) FOR OPEN — UNABLE TO CONFIRM OPERATION OF RH WINDOW


Measure the resistance between LH power window switch C510 Pin 1, Circuit 313 (WH/YE), harness side and RH power window switch C609 Pin 2, Circuit 313 (WH/YE), harness side.

Measure the resistance between LH window regulator control switch C510 Pin 2, Circuit 314 (TN/LB), harness side and RH window regulator control switch C609 Pin 7, Circuit 314 (TN/LB), harness side.


Yes GO to D5.

No REPAIR Circuit 313 (WH/YE) and Circuit 314 (TN/LB) as necessary. CLEAR the DTCs. REPEAT the self-test.

D5 CHECK CIRCUITS 333 (YE/RD) AND 334 (RD/YE) FOR OPEN

RH Power Window Motor C606

Measure the resistance between RH power window switch C609 Pin 6, Circuit 334 (RD/YE), harness side and RH power window motor C606, Circuit 334 (RD/YE), harness side.

Measure the resistance between RH power window switch C609 Pin 3, Circuit 333 (YE/RD), harness side and RH power window motor C606, Circuit 333 (YE/RD), harness side.




PINPOINT TEST E: THE DELAYED ACCESSORY DOES NOT TURN OFF

Yes INSTALL a new RH power window motor; for additional information, REFER to Window Regulator. CLEAR the DTCs. REPEAT the self-test.

No REPAIR Circuit 333 (YE/RD) and Circuit 334 (RD/YE) as necessary. CLEAR the DTCs. REPEAT the self-test.


E1 CHECK THE ACCESSORY DELAY RELAY FOR SHORT TO POWER — PIN 87




Yes GO to E2.

No GO to Pinpoint Test B.

E2 CHECK CJB FOR SHORT TO POWER

CJB C242



Yes GO to E3.

No REPAIR Circuit 400 (LB/BK). CLEAR the DTCs. REPEAT the self-test.



E3 CHECK CJB FOR SHORT TO POWER — GEM REMOVED

GEM C267







Date post:	11-Feb-2022
Category:	Documents
Upload:	others
View:	3 times
Download:	0 times

1999 F -150/250 Workshop Manual 26

Documents