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Shift Interlock Systems: Other Mercury Mountaineer I рестайлинг

Automatic Trans 4 illustrations ~9924 words

ALL MODELS

System is a 2-function electro/mechanical system which prevents free movement of the shift lever. On models with column shift, a shift lock actuator is mounted on the steering column. On models with floor mounted shift lever, a shift lock actuator is mounted on the ignition switch end of the interlock cable. This actuator prevents the ignition switch from being turned to LOCK position unless shift lever is in "P" position. Shift lever may not be moved from "P" position if the ignition key is in the RUN position unless the brake pedal is depressed.

On Escort, Escort ZX2, Tracer and Villager, a cable system between ignition switch and shift lever prevents ignition key from being removed from switch unless shift lever is in "P" position.

An electronic shift lock actuator, mounted at the base of the shift lever, locks shift lever in "P" position until ignition switch is in RUN position and brake pedal is depressed.

Emergency Override Function (Contour, Cougar & Mystique)

Ensure shift lever is locked in Park. Use a screwdriver or similar item as an unlocking lever and push backward on actuator and hold in position. (Scheme 24) If shift lever is moved back into "P" position, it will re-lock.

Scheme 24

Scheme 24: Emergency Override Function (Contour, Cougar & Mystique)
Scheme 24: Emergency Override Function (Contour, Cougar & Mystique)

Emergency Override Function (Escort, Escort ZX2 & Tracer)

Ensure shift lever is locked in Park. Use a screwdriver to lift small access cover at upper right corner of shift bezel. Insert a screwdriver vertically into access hole and push downward to release lock lever. Ensure shift lever is released from Park.

ALL MODELS - EXCEPT ESCORT, ESCORT ZX2, TRACER & VILLAGER

Turn ignition switch to RUN position. Ensure shift lever is in "P" position. Ensure shift lever may only be moved to "R" position when brake pedal is depressed. Ensure ignition switch cannot be turned to LOCK position with shift lever in "R" position. Move shift lever to "P" position and ensure ignition switch may be turned to LOCK position and key removed.

CONTINENTAL

Verify customer complaint. Visually inspect the following components of the shift lock system

Mechanical Components

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition switch/interlock cable for damage or misadjustment.
  3. Switches and brackets for damaged.

Electrical Components

  1. Fuse No. 28 (10-amp) or fuse No. 32 (15-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Brakelight Operation Depress brake pedal. If brakelights illuminate, go to step 7 . If brakelights do not illuminate, go to next step.
  2. Check Fuse No. 32 (15-Amp) Check fuse No. 32 located in the interior fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is okay, go to step 4 . If fuse is blown, go to next step.
  3. Check Wire To BPP Switch For Short To Ground Turn ignition off. Disconnect BPP switch connector. Using DVOM, measure resistance of wire between BPP switch harness connector terminal (Light Green/Red wire) and ground. If resistance is more 10 k/ohms, go to next step. If resistance is less than 10 k/ohms, repair wire between fuse panel and BPP switch for short to ground. Reconnect all connectors and retest system.
  4. Check Wire To BPP Switch For Open Using DVOM, measure resistance of wire between fuse No. 32 output terminal and BPP switch harness connector terminal (Light Green/Red wire). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Light Green/Red wire between fuse panel and BPP switch. Reconnect all connectors and retest system.
  5. Check BPP Switch Using DVOM, measure resistance between both BPP switch terminals. Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and less than 5 ohms with brake pedal applied. If switch operates as specified, go to next step. If switch does not operate as specified, replace BPP switch and retest system.
  6. Check Wire To Shift Interlock Actuator For Short To Ground Disconnect shift lock actuator connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal (Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is less than 10 k/ohms, repair short in Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Wire To Shift Interlock Actuator For Open Using DVOM, measure resistance of Light Green wire between BPP switch connector and shift lock actuator connector. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  8. Check Voltage To Shift Interlock Actuator Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal (Purple/Orange wire on 5-passenger car and Light Green/Purple wire on 6-passenger car) and ground. If battery voltage is present, go to step 12 . If battery voltage is not present, go to next step.
  9. Check 10-Amp Fuse No. 28 Turn ignition off. Remove and check fuse No. 28. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is okay, go to step 11 . If fuse is blown, go to next step.
  10. Check Wire To Shift Interlock Actuator For Short To Ground Using DVOM, measure resistance between shift lock actuator harness connector terminal (Purple/Orange wire on 5-passenger car and Light Green/Purple wire on 6-passenger car) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is less than 10 k/ohms, repair open in Purple/Orange wire on 5-passenger car or Light Green/Purple wire on 6-passenger car, between fuse No. 28 and shift lock actuator harness connector. Reconnect all connectors and retest system.
  11. Check Wire To Shift Interlock For Open Using DVOM, measure resistance of Purple/Orange wire on 5-passenger car and Light Green/Purple wire on 6-passenger car, between fuse No. 28 output terminal and shift lock actuator connector terminal. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Purple/Orange wire on 5-passenger car and Light Green/Purple wire on 6-passenger car, between fuse No. 28 and shift lock actuator harness connector. Reconnect all connectors and retest system.
  12. Check Shift Interlock Actuator Ground For Open Ensure ignition is off. Using DVOM, measure resistance between shift lock actuator harness connector Black wire and ground. If resistance is less than 5 ohms, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

CONTOUR & MYSTIQUE

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition switch for damage or misadjustment.
  1. Open or shorted circuits.
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Fuse No. 23 (15-amp) or fuses No. 30 and 34 (7.5-amp).
  5. Faulty interface module.
  6. Faulty key removal inhibit solenoid.
  7. Faulty bulbs.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Fuse No. 23 (15-Amp) Check fuse No. 23 (15-amp), located in the interior fuse panel. If fuse is okay, go to next step. If fuse is not okay, replace fuse and recheck operation. If fuse blows again, check Violet/White wire for short to ground. Repair as necessary.
  2. Check Fuse No. 34 (7.5-Amp) Check fuse No. 34 (7.5-amp), located in the interior fuse panel. If fuse is okay, go to next step. If fuse is not okay, replace fuse and recheck operation. If fuse blows again, check Orange/Yellow wire for short to ground. Repair as necessary.
  3. Check Fuse No. 30 (7.5-Amp) Check fuse No. 30 (7.5-amp), located in the interior fuse panel. If fuse is okay, go to next step. If fuse is not okay, replace fuse and recheck operation. If fuse blows again, check Violet/Black wire between fuse panel and gearshift lever unit for short to ground. Repair as necessary.
  4. Check Voltage To Gearshift Lever Unit Remove gearshift lever unit and disconnect electrical connector. Turn ignition on. Using DVOM, measure voltage between gearshift lever unit wiring harness connector terminal No. 1 (Violet/White wire), terminal No. 3 (Orange/Yellow wire) and ground. If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair open in affected wire between fuse panel and gearshift lever unit.
  5. Check Circuit 31S For Open Turn ignition off. Disconnect 16-pin instrument interface module connector located below center console. Using DVOM, measure resistance of Black/White wire between gearshift lever unit wiring harness connector terminal No. 2 and instrument interface module harness connector terminal No. 8. (Scheme 25)and (Scheme 26). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Black/White wire. Reconnect all connectors and retest system.
  6. Check Circuit 29S For Open Using DVOM, measure resistance between gearshift lever unit wiring harness connector terminal No. 4 (Orange/Yellow wire) and instrument interface module harness connector terminal No. 9 (Orange/Blue wire). (Scheme 25)and (Scheme 26). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in affected wire. Reconnect all connectors and retest system.
  7. Check Circuit 31S For Short To Power Turn ignition on. Using DVOM, measure voltage between gearshift lever unit wiring harness connector terminal No. 2 (Black/White wire) and ground. (Scheme 25) If voltage is less than one volt, go to next step. If voltage is more than one volt, repair short to power in Black/White wire. Reconnect all connectors and retest system.
  8. Check Gearshift Lever Unit Operation Ensure ignition is off. Reconnect gearshift lever unit connector. Connect a jumper wire between instrument interface module harness connector terminal No. 8 (Black/White wire) and ground. Turn ignition on. Try to move gearshift lever from Park to Reverse. If gearshift lever moves, go to next step. If gearshift lever will not move, replace gearshift lever unit. Remove jumper wire and reconnect all connectors and retest system.
  9. Check Instrument Interface Module Ground Using DVOM, measure resistance between instrument interface module connector terminal No. 15 (Black/Green wire) and ground. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in wire. Reconnect all connectors and retest system.
  10. Check Power Supply To Instrument Interface Module Turn ignition on. Using DVOM, measure voltage between instrument interface module connector terminal No. 11 (Violet/Black wire) and ground. If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair open in Violet/Black wire between 7.5-amp fuse No. 30 and module. Reconnect all connectors and retest system.
  11. Check BPP Switch Operation Turn ignition off. Press down on brake pedal. If brakelights turn on, go to next step. If brakelights do not turn on, diagnose BPP switch. See EXTERIOR LIGHTS article in ACCESSORIES & EQUIPMENT.
  12. Check Circuit 29S For Open Disconnect PCM 104-pin connector. Install 104-pin breakout box leaving PCM disconnected. Using DVOM, measure resistance between breakout box terminal No. 92 and instrument interface module connector terminal No. 7 (Orange/Black wire). If resistance is less than 5 ohms, replace instrument interface module. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in affected wire. Remove breakout box, reconnect all connectors and retest system.

Scheme 25

Scheme 25
Scheme 25

Scheme 26

Scheme 26
Scheme 26

COUGAR

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Open or shorted circuits.
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Fuse No. 23 (15-amp) or fuses No. 30 and 34 (7.5-amp).
  5. Faulty interface module.
  6. Faulty key removal inhibit solenoid.
  7. Faulty bulbs.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Fuse No. 23 (15-Amp) Check fuse No. 23 (15-amp), located in the interior fuse panel. If fuse is okay, go to next step. If fuse is not okay, replace fuse and recheck operation. If fuse blows again, check Violet/White wire for short to ground. Repair as necessary.
  2. Check Fuse No. 34 (7.5-Amp) Check fuse No. 34 (7.5-amp), located in the interior fuse panel. If fuse is okay, go to next step. If fuse is not okay, replace fuse and recheck operation. If fuse blows again, check Orange/Yellow wire for short to ground. Repair as necessary.
  3. Check Fuse No. 30 (7.5-Amp) Check fuse No. 30 (7.5-amp), located in the interior fuse panel. If fuse is okay, go to next step. If fuse is not okay, replace fuse and recheck operation. If fuse blows again, check Violet/Black wire between fuse panel and gearshift lever unit for short to ground. Repair as necessary.
  4. Check Voltage To Gearshift Lever Unit Remove gearshift lever unit and disconnect 8-pin connector. Turn ignition on. Using DVOM, measure voltage between gearshift lever unit wiring harness connector terminal No. 1 (Violet/White wire), terminal No. 3 (Orange/Yellow wire) and ground. If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair open in affected wire between fuse panel and gearshift lever unit.
  5. Check Circuit 31S For Open Turn ignition off. Disconnect 16-pin instrument interface module connector, located below center console. Using DVOM, measure resistance of Black/White wire between gearshift lever unit harness connector terminal No. 2 and instrument interface module harness connector terminal No. 8. (Scheme 25)and (Scheme 26). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Black/White wire. Reconnect all connectors and retest system.
  6. Check Circuit 29S For Open Using DVOM, measure resistance between gearshift lever unit harness connector terminal No. 4 (Orange/Yellow wire) and instrument interface module harness connector terminal No. 9 (Orange/Blue wire). (Scheme 25)and (Scheme 26). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in affected wire. Reconnect all connectors and retest system.
  7. Check Circuit 31S For Short To Power Turn ignition on. Using DVOM, measure voltage between gearshift lever unit wiring harness connector terminal No. 2 (Black/White wire) and ground. (Scheme 25) If voltage is less than one volt, go to next step. If voltage is more than one volt, repair short to power in Black/White wire. Reconnect all connectors and retest system.
  8. Check Gearshift Lever Unit Operation Ensure ignition is off. Reconnect gearshift lever unit harness connector. Connect a jumper wire between instrument interface module harness connector terminal No. 8 (Black/White wire) and ground. Turn ignition on. Try to move gearshift lever from Park to Reverse. If gearshift lever moves, go to next step. If gearshift lever will not move, replace gearshift lever unit. Remove jumper wire and reconnect all connectors and retest system.
  9. Check Instrument Interface Module Ground Using DVOM, measure resistance between instrument interface module harness connector terminal No. 15 (Black/Green wire) and ground. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in affected wire. Reconnect all connectors and retest system.
  10. Check Power Supply To Instrument Interface Module Turn ignition on. Using DVOM, measure voltage between instrument interface module harness connector terminal No. 11 (Violet/Black wire) and ground. If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair open in Violet/Black wire between 7.5-amp fuse No. 30 and module. Reconnect all connectors and retest system.
  11. Check BPP Switch Operation Turn ignition off. Press down on brake pedal. If brakelights turn on, go to next step. If brakelights do not turn on, diagnose BPP switch. See EXTERIOR LIGHTS article in ACCESSORIES & EQUIPMENT.
  12. Check Circuit 29S For Open Disconnect PCM 104-pin connector. Install 104-pin breakout box leaving PCM disconnected. Using DVOM, measure resistance between breakout box terminal No. 92 and instrument interface module connector terminal No. 7 (Violet/Black wire). If resistance is less than 5 ohms, replace instrument interface module. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in affected wire. Remove breakout box, reconnect all connectors and retest system.

CROWN VICTORIA & GRAND MARQUIS

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly and cable for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Open or shorted circuits.
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Damaged shift lock actuator.
  5. Fuse(s) No. 1 or No. 5 (15-amp).

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check BPP Switch Operation Turn ignition off. Press down on brake pedal. If brakelights turn on, go to step 7 . If brakelights do not turn on, go to next step.
  2. Check Fuse No. 1 (15-Amp) Check fuse No. 1 (15-amp), located in the interior fuse junction block. If fuse is okay, go to step 4 . If fuse is not okay, go to next step.
  3. Check Circuit For Short To Ground Turn ignition off. Remove fuse No. 1. Disconnect BPP harness connector. Using DVOM, measure resistance between BPP switch harness connector terminal (Light Green/Red wire) and ground. If resistance is more than 10 k/ohms, reinstall fuse and go to next step. If resistance is 10 k/ohms or less, repair short to ground in Light Green/Red wire. Reconnect all connectors and retest system.
  4. Check Circuit For Open Using DVOM, measure resistance between output side of 15-amp fuse No. 1 and BPP switch harness connector terminal (Light Green/Red wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Green/Red wire. Reconnect all connectors and retest system.
  5. Check BPP Switch Disconnect BPP switch connector. Using DVOM, measure resistance between BPP switch terminals while open (OFF) and closed (ON). Resistance should be more than 10 k/ohms while open (OFF) and 5 ohms or less while closed (ON). If resistance is as specified, go to next step. If resistance is not as specified, replace BPP switch. Reconnect all connectors and retest system.
  6. Check Circuit No. 511 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Light Green wire between BPP switch and shift lock actuator. Reconnect all connectors and retest system.
  7. Check Circuit No. 511 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Light Green wire) and BPP switch harness connector terminal No.2 (Light Green wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Green wire between shift lock actuator and BPP switch. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . Reconnect all connectors and retest system.
  8. Check Supply Voltage To Shift Lock Actuator Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (Purple/Orange wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 12 .
  9. Check Fuse No. 5 (15-Amp) Check fuse No. 5 (15-amp), located in the interior fuse junction block. If fuse is not okay, go to next step. If fuse is okay, go to step 11 .
  10. Check Circuit No. 298 For Short To Ground Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 3 (Purple/Orange wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Purple/Orange wire between shift lock actuator and fuse No. 5. Reconnect all connectors and retest system.
  11. Check Circuit No. 298 For Open Using DVOM, measure resistance between output side of 15-amp fuse No. 5 and shift lock actuator harness connector terminal No. 3 (Purple/Orange wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Purple/Orange wire. Reconnect all connectors and retest system.
  12. Check Circuit No. 57 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. If resistance is more than 5 ohms, repair open in Black wire. Reconnect all connectors and retest system.

"E" SERIES

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever or lock actuator assembly for damage or misadjustment.
  2. Ignition switch for damage or misadjustment.
  3. Switches and brackets for damaged.
  1. Fuse No. 6 (10-amp) or fuse No. 11 (15-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Brakelight Operation Depress brake pedal. If brakelights illuminate, go to step 7 . If brakelights do not illuminate, go to next step.
  2. Check Fuse No. 11 (15-Amp) Check fuse No. 11 (15-amp), in fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is okay, go to step 4 . If fuse is blown, go to next step.
  3. Check Circuit No. 10 For Short To Ground Turn ignition off. Disconnect BPP switch connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 1 (Light Green/Red wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Light Green/Red wire between fuse No.11 and BPP switch. Reconnect all connectors and retest system.
  4. Check Circuit No. 10 For Open Using DVOM, measure resistance between fuse No. 11 output side terminal and BPP switch harness connector terminal No. 1 (Light Green/Red wire). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Light Green/Red wire between fuse No. 11 and BPP switch. Reconnect all connectors and retest system.
  5. Check BPP Switch Using DVOM, measure and record resistance between both BPP switch connector terminals. Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and 5 ohms or less with brake pedal applied. If resistance is as specified, go to next step. If resistance is not as specified, replace BPP switch and retest system.
  6. Check CircuitNo. 511 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Circuit No. 511 For Open Using DVOM, measure resistance of Light/Green wire between BPP switch harness connector terminal No. 2 and shift lock actuator harness connector terminal No. 1. If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  8. Check Voltage To Shift Interlock Actuator Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (Purple/Orange wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 12 .
  9. Check Fuse No. 6 (10-Amp) Turn ignition off. Remove and check fuse No. 6 (10-amp). See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is blown, go to next step. If fuse is okay, go to step 11 .
  10. Check Circuit No. 298 For Short To Ground Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 3 (Purple/Orange wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair open in Purple/Orange wire between fuse No. 6 and shift lock actuator connector. Reconnect all connectors and retest system.
  11. Check Circuit No. 298 For Open Using DVOM, measure resistance between fuse No. 6 output terminal and shift lock actuator harness connector terminal No. 3 (Purple/Orange wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Purple/Orange wire between fuse No. 6 and shift lock actuator connector. Reconnect all connectors and retest system.
  12. Check Circuit No. 57 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

ESCORT, ESCORT ZX2 & TRACER

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switches for damage or misadjustment.
  3. Switches and brackets for damaged.
  1. METER and ROOM fuses (10-amp) or STOP Fuse (15-amp) on Escort/Tracer Sedan/Wagon.
  2. METER (10-amp), HORN (15-amp) or STOP fuse (20-amp) on Escort And Tracer Coupe.
  3. Loose or damaged connections.
  4. Brake Pedal Position (BPP) switch connections.
  5. Faulty park sense switch.
  6. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Fuse(s) Check METER, ROOM, HORN and STOP fuses, located in the interior fuse junction block. If fuses are okay, go to step 4 . If fuses are not okay, go to next step.
  2. Check Electrical System With ignition off, replace blown fuse(s). Turn ignition on. If the fuse blows again, go to next step. If the fuse does not blow again, go to step 4 .
  3. Check For Short To Ground Turn ignition off. Remove METER, ROOM, HORN or STOP fuse(s). Locate and disconnect shift lock actuator connector. Using DVOM, measure and record resistance between each METER, ROOM or HORN and STOP fuse output terminals and ground. If each resistance is more than 10 k/ohms, reinstall fuses and go to next step. If any resistance is less than 10 k/ohms, repair short in appropriate circuit. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . Reconnect all connectors and retest system.
  4. Check Supply Voltage To Shift Lock Actuator Turn ignition off. Disconnect shift lock actuator 4-pin connector. Turn ignition on. Using DVOM, measure voltage between shift lock actuator wiring harness connector terminals No. 4 (Green/Yellow wire), No. 3 (Black/Yellow wire) and ground. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair open in affected wire. Reconnect all connectors and retest system.
  5. Check Voltage From BPP Switch To Shift Lock Actuator Turn ignition off. Connect DVOM leads between shift lock actuator harness connector terminal No. 1 (Green wire) and ground. While monitoring DVOM, press brake pedal. If voltage is less than 10 volts, go to next step. If voltage is 10 volts or more, go to step 8 .
  6. Check Circuit No. 351 For Short To Ground Disconnect BPP switch 2-pin connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 2 (Green wire) and ground. If resistance is 10 k/ohms or more, go to next step. If resistance is less than 10 k/ohms, repair short to ground in Green wire between BPP switch and shift lock actuator.
  7. Check Circuit No. 351 For Open Using DVOM, measure resistance between BPP switch harness connector terminal No. 2 (Green wire) and shift lock actuator harness connector terminal No. 1 (Green wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Green wire between BPP switch and shift lock actuator.
  8. Check Park Sense Switch Ground For Open Disconnect park sense switch 2-pin connector. Using DVOM, measure resistance between park sense switch harness connector terminal No. 2 (Black wire) and ground. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Black wire. Reconnect all connectors and retest system.
  9. Check Park Sense Switch Using DVOM, measure resistance between park sense switch connector terminals. Resistance should be less than 5 ohms with gearshift lever release button released and more than 10 k/ohms with gearshift lever release button pressed or gearshift lever in any position other than Park. If resistance is not as specified, replace gearshift lever and park sense switch. If resistance is as specified, replace shift lock actuator. Reconnect all connectors and retest system.

EXPLORER, MOUNTAINEER & RANGER

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. MINI fuses No. 9 and 10 (7.5-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

Scheme 27

Scheme 27
Scheme 27
  1. Check Brakelight Operation Depress brake pedal. If brakelights illuminate, go to step 7. If brakelights do not illuminate, go to next step.
  2. Check MINI Fuse No. 9 (7.5-Amp) Check MINI fuse No. 9 (7.5-amp), located in fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000). If fuse is blown, go to next step. If fuse is okay, go to step 4.
  3. Check Circuit No. 276 For Short To Ground Turn ignition off. Disconnect BPP switch 5-pin connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 3 (Brown wire) and ground. (Scheme 27) If resistance is more 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Brown wire between fuse No. 9 and BPP switch. Reconnect all connectors and retest system.
  4. Check Circuit No. 276 For Open Using DVOM, measure resistance between fuse No. 9 output terminal and BPP switch harness connector terminal No. 3 (Brown wire). (Scheme 27) If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Brown wire between fuse No. 9 and BPP switch. Reconnect all connectors and retest system.
  5. Check BPP Switch Using DVOM, measure and record resistance between BPP switch connector terminals No. 2 and 3. (Scheme 27) Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and 5 ohms or less with brake pedal applied. If switch resistance is as specified, go to next step. If switch resistance is not as specified, replace BPP switch and retest system.
  6. Check Circuit No. 810 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Red/Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is less than 10 k/ohms, repair short to ground in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Circuit No. 810 For Open Using DVOM, measure resistance of wire between BPP switch harness connector terminal No. 2 (Red/Light Green wire) and shift lock actuator harness connector terminal No. 1 (Red/Light Green wire). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  8. Check Circuit No. 1003 For Voltage Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 12.
  9. Check Fuse No. 10 (7.5-Amp) Turn ignition off. Remove and check fuse No. 10 (7.5-amp). See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000). If fuse is blown, go to next step. If fuse is okay, go to step 11.
  10. Check Circuit No. 1003 For Short To Ground Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair open in Gray/Yellow wire between fuse No. 10 and shift lock actuator connector. Reconnect all connectors and retest system.
  11. Check Circuit No. 1003 For Open Using DVOM, measure resistance between fuse No. 10 output terminal and shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Gray/Yellow wire between fuse No. 10 and shift lock actuator connector. Reconnect all connectors and retest system.
  12. Check Circuit No. 57 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

EXPEDITION, F-150/250 LIGHT DUTY & NAVIGATOR

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Fuses No. 6 and No. 15 (5-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Brakelight Operation Depress brake pedal. If brakelights illuminate, go to step 7. If brakelights do not illuminate, go to next step.
  2. Check Fuse No. 15 (5-Amp) Check fuse No. 15 (5-amp), located in fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000). If fuse is blown, go to next step. If fuse is okay, go to step 4.
  3. Check Circuit No. 1001 For Short To Ground Turn ignition off. Disconnect BPP switch 5-pin connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 3 (White/Yellow wire) and ground. (Scheme 27) If resistance is more 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in White/Yellow wire between fuse No. 15 and BPP switch. Reconnect all connectors and retest system.
  4. Check Wire To BPP Switch For Open Using DVOM, measure resistance between fuse No. 15 output terminal and BPP switch harness connector terminal No. 3 (White/Yellow wire). (Scheme 27) If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in White/Yellow wire between fuse No. 15 and BPP switch. Reconnect all connectors and retest system.
  5. Check BPP Switch Using DVOM, measure and record resistance between BPP switch connector terminals No. 2 and 3. (Scheme 27) Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and 5 ohms or less with brake pedal applied. If switch resistance is as specified, go to next step. If switch resistance is not as specified, replace BPP switch and retest system.
  6. Check Circuit No. 810 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Red/Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is less than 10 k/ohms, repair short to ground in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Circuit No. 810 For Open Using DVOM, measure resistance of wire between BPP switch harness connector terminal No. 2 (Red/Light Green wire) and shift lock actuator harness connector terminal No. 1 (Red/Light Green wire). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  8. Check For Voltage To Shift Interlock Actuator Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 12.
  9. Check Fuse No. 6 (5-Amp) Turn ignition off. Remove and check fuse No. 6. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000). If fuse is blown, go to next step. If fuse is okay, go to step 11.
  10. Check Circuit No. 1003 For Short To Ground Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair open in Gray/Yellow wire between fuse No. 6 and shift lock actuator connector. Reconnect all connectors and retest system.
  11. Check Circuit No. 1003 For Open Using DVOM, measure resistance between fuse No. 6 output terminal and shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open Gray/Yellow wire between fuse No. 6 and shift lock actuator connector. Reconnect all connectors and retest system.
  12. Check Circuit No. 57 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

F-250/550 SUPER DUTY

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Fuse No. 15 (5-amp) or fuse No. 28 (10-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Brakelight Operation Depress brake pedal. If brakelights do not illuminate, go to next step. If brakelights illuminate, go to step 7.
  2. Check Fuse No. 15 (5-Amp) Check fuse No. 15 (5-amp), located in fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000). If fuse is blown, go to next step. If fuse is okay, go to step 4.
  3. Check Circuit No. 22 For Short To Ground Turn ignition off. Disconnect BPP switch 5-pin connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 3 (Light Blue/Black wire). (Scheme 27) If resistance is more 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Light Blue/Black wire between fuse No. 15 and BPP switch. Reconnect all connectors and retest system.
  4. Check Circuit No. 22 For Open Using DVOM, measure resistance between fuse No. 15 output terminal and BPP switch harness connector terminal No. 3 (Light Blue/Black wire). (Scheme 27) If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Blue/Black wire between fuse No. 15 and BPP switch. Reconnect all connectors and retest system.
  5. Check BPP Switch Using DVOM, measure resistance between BPP harness connector terminals No. 2 and 3. (Scheme 27) Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and 5 ohms or less with brake pedal applied. If switch resistance is as specified, go to next step. If switch resistance is not as specified, replace BPP switch and retest system.
  6. Check Circuit No. 810 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Red/Light Green wire) and ground. If resistance is 10 k/ohms or less, go to next step. If resistance is more than 10 k/ohms, repair short to ground in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Circuit No. 810 For Open Using DVOM, measure resistance between BPP switch harness connector terminal No. 2 (Red/Light Green wire) and shift lock actuator harness connector terminal No. 1 (Red/Light Green wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  8. Check Voltage To Shift Interlock Actuator Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 1 (Red/Light Green wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 12.
  9. Check 10-Amp Fuse No. 28 Turn ignition off. Remove and check fuse No. 28. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000). If fuse is blown, go to next step. If fuse is okay, go to step 11.
  10. Check Circuit No. 295 For Short To Ground Using DVOM, measure resistance between shift lock actuator connector terminal No. 3 (Light Blue/Pink wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair open in Light Blue/Pink wire between fuse No. 28 and shift lock actuator connector. Reconnect all connectors and retest system.
  11. Check Circuit No. 295 For Open Using DVOM, measure resistance between fuse No. 28 output terminal and shift lock actuator harness connector terminal No. 3 (Light Blue/Pink wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Blue/Pink wire between fuse No. 28 and shift lock actuator connector. Reconnect all connectors and retest system.
  12. Check Shift Interlock Actuator Ground For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

MUSTANG

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly and cable for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Fuses No. 17 or No. 35 (15-amp).
  2. Open or shorted circuits.
  3. Loose or damaged connections.
  4. Brake Pedal Position (BPP) switch connections.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Brakelight Operation Depress brake pedal. If brakelights turn on, go to next step. If brakelights do not turn on, diagnose BPP switch. See EXTERIOR LIGHTS article in ACCESSORIES & EQUIPMENT.
  2. Check Circuit No. 511 For Open Disconnect shift lock actuator 3-pin connector. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 1 (Light Green wire) and ground. Battery voltage should be present with brake pedal depressed and no voltage present with brake pedal released. If voltage is as specified, go to next step. If voltage is not as specified, repair open in Light Green wire. Reconnect all connectors and retest system.
  3. Check Circuit No. 294 For Open Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (White/Light Blue wire) and ground. If battery voltage is present, go to next step. If battery voltage is not present, repair open in White/Light Blue wire. Reconnect all connectors and retest system.
  4. Check Circuit No. 1205 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is less than 5 ohms, replace shift lock actuator. If resistance is 5 ohms or more, repair open in Black wire. Reconnect all connectors and retest system.

TAURUS & SABLE

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Fuse No. 5 (5-amp) or fuse No. 28 (15-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Fuse No. 28 (15-Amp) Check fuse No. 28 (15-amp), located in fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is blown, go to next step. If fuse is okay, go to step 3 .
  2. Check Circuit No. 10 For Short To Ground Disconnect BPP switch 2-pin connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 1 (Light Green/Red wire) and ground. If resistance is more 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair wire between fuse No. 28 and BPP switch for short to ground. Reconnect all connectors and retest system.
  3. Check Circuit No. 10 For Open Using DVOM, measure resistance between fuse No. 28 output terminal and BPP switch harness connector terminal No. 1 (Light Green/Red wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Green/Red wire between fuse No. 28 and BPP switch. Reconnect all connectors and retest system.
  4. Check BPP Switch Using DVOM, measure and record resistance between both BPP switch connector terminals. Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and 5 ohms or less with brake pedal applied. If switch resistance is as specified, go to next step. If switch resistance is not as specified, replace BPP switch and retest system.
  5. Check Circuit No. 810 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Red/Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  6. Check Circuit No. 810 For Open Using DVOM, measure resistance between BPP switch harness connector terminal No. 2 (Red/Light Green wire) and shift lock actuator harness connector terminal No. 1 (Red/Light Green wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Circuit No. 1003 For Voltage Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 11 .
  8. Check Fuse No. 5 (5-Amp) Turn ignition off. Remove and check fuse No. 5 (5-amp). See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is blown, go to next step. If fuse is okay, go to step 10 .
  9. Check Circuit No. 1003 For Short To Ground Using DVOM, measure resistance between shift lock actuator connector terminal No. 3 (Gray/Yellow wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Gray/Yellow wire between fuse No. 5 and shift lock actuator connector. Reconnect all connectors and retest system.
  10. Check Circuit No. 1003 For Open Using DVOM, measure resistance between fuse No. 5 output terminal and shift lock actuator harness connector terminal No. 3 (Gray/Yellow wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Gray/Yellow wire between fuse No. 5 and shift lock actuator connector. Reconnect all connectors and retest system.
  11. Check Circuit No. 57 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

TOWN CAR

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Fuse No. 20 (7.5-amp), fuse No. 8 (10-amp) or fuse No. 10 (20-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Brakelight Operation Depress brake pedal. If brakelights do not illuminate, go to next step. If brakelights illuminate, go to step 7 .
  2. Check Fuse No. 10 (20-Amp) Check fuse No. 10 (20-amp), in fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is blown, go to next step. If fuse is okay, go to step 4 .
  3. Check Circuit No. 10 For Short To Ground Turn ignition off. Disconnect BPP switch 2-pin connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 1 (Light Green/Red wire) and ground. If resistance is more 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Light Green/Red wire between fuse No. 10 and BPP switch. Reconnect all connectors and retest system.
  4. Check Circuit No. 10 For Open Using DVOM, measure resistance between fuse No. 10 output terminal and BPP switch harness connector terminal No. 1 (Light Green/Red wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Green/Red wire between fuse No. 10 and BPP switch. Reconnect all connectors and retest system.
  5. Check BPP Switch Using DVOM, measure and record resistance between both BPP switch connector terminals. Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and 5 ohms or less with brake pedal applied. If switch resistance is as specified, go to next step. If switch resistance is not as specified, replace BPP switch and retest system.
  6. Check Circuit No. 810 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Red/Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Circuit No. 810 For Open Using DVOM, measure resistance between BPP switch harness connector terminal (Red/Light Green wire) and shift lock actuator harness connector terminal No. 1 (Red/Light Green wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  8. Check Voltage To Shift Interlock Actuator Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (White/Purple wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 12 .
  9. Check Fuse No. 8 (10-Amp) Turn ignition off. Remove and check fuse No. 8. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is blown, go to next step. If fuse is okay, go to step 11 .
  10. Check Circuit No. 296 For Short To Ground Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 3 (White/Purple wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair open in White/Purple wire between fuse No. 8 and shift lock actuator connector. Reconnect all connectors and retest system.
  11. Check Circuit No. 296 For Open Using DVOM, measure resistance between fuse No. 8 output terminal and shift lock actuator harness connector terminal No. 3 (White/Purple wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in White/Purple wire between fuse No. 8 and shift lock actuator connector. Reconnect all connectors and retest system.
  12. Check Circuit No. 57 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

VILLAGER

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Deactivator switch for damage or misadjustment.
  1. Fuse No. 37 (10-Amp).
  2. Loose or damaged connections.
  3. Deactivator switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Shift Lock Actuator Ground Turn ignition off. Disconnect shift lock actuator 2-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Black wire between shift lock actuator and ground. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) .
  2. Check Supply Voltage To Shift Lock Actuator Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 1 (White wire) and ground. Voltage should be more than 10 volts with brake pedal released and less than one volt with brake pedal depressed. If voltage is as specified, replace shift lock actuator. If voltage is not as specified, go to next step.
  3. Check Circuit SL04 For Open Turn ignition off. Disconnect Deactivator switch 2-pin connector. Using DVOM, measure resistance between Deactivator switch harness connector terminal No. 2 (White wire) and shift lock actuator harness connector terminal No. 1 (White wire). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in White wire between Deactivator switch and shift lock actuator.
  4. Check Deactivator Switch Input Turn ignition on. Using DVOM, measure voltage between Deactivator switch harness connector terminal No. 1 (Blue wire) and ground. If voltage is more than 10 volts, replace Deactivator switch and retest system. If voltage is 10 volts or less, repair open or short to ground in Blue wire between Deactivator switch and fuse No. 37 in fuse junction panel.

WINDSTAR

Verify customer complaint. Visually inspect the following components of the shift lock system

  1. Shift lever assembly for damage or misadjustment.
  2. Ignition or Brake Pedal Position (BPP) switch for damage or misadjustment.
  1. Fuses No. 10 or 11 (10-amp).
  2. Loose or damaged connections.
  3. Brake Pedal Position (BPP) switch connections.
  4. Wiring harness.

Note. See appropriate wiring diagram to diagnose electrical circuits and identify fuses and circuit numbers. See WIRING DIAGRAMS .

  1. Check Brakelight Operation Depress brake pedal. If brakelights illuminate, go to step 7 . If brakelights do not illuminate, go to next step.
  2. Check Fuse No. 11 (10-Amp) Check fuse No. 11 (10-amp), located in fuse panel. See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is blown, go to next step. If fuse is okay, go to step 4 .
  3. Check Circuit No. 10 For Short To Ground Disconnect BPP switch 2-pin connector. Using DVOM, measure resistance between BPP switch harness connector terminal No. 1 (Light Green/Red wire) and ground. If resistance is more 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair Light Green/Red wire between fuse No. 11 and BPP switch for short to ground. Reconnect all connectors and retest system.
  4. Check Circuit No. 10 For Open Using DVOM, measure resistance between fuse No. 11 output terminal and BPP switch harness connector terminal No. 1 (Light Green/Red wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Light Green/Red wire between fuse No. 11 and BPP switch. Reconnect all connectors and retest system.
  5. Check BPP Switch Using DVOM, measure and record resistance between BPP switch connector terminals. Apply brakes and recheck resistance. Resistance should be more than 10 k/ohms without brake pedal applied and 5 ohms or less with brake pedal applied. If switch resistance is as specified, go to next step. If switch resistance is not as specified, replace BPP switch and retest system.
  6. Check Circuit No. 810 For Short To Ground Disconnect shift lock actuator 3-pin connector. Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 1 (Red/Light Green wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  7. Check Circuit No. 810 For Open Using DVOM, measure resistance between BPP switch harness connector terminal No. 2 (Red/Light Green wire) and shift lock actuator harness connector terminal No. 1 (Red/Light Green wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Red/Light Green wire between BPP switch connector and shift lock actuator connector. Reconnect all connectors and retest system.
  8. Check Circuit No. 1040 For Voltage Turn ignition on. Using DVOM, measure voltage between shift lock actuator harness connector terminal No. 3 (Red/Black wire) and ground. If battery voltage is not present, go to next step. If battery voltage is present, go to step 12 .
  9. Check Fuse No. 10 (10-Amp) Turn ignition off. Remove and check fuse No. 10 (10-amp). See «WIRING DIAGRAMS»(ref-12278-S28752055532000121600000) . If fuse is blown, go to next step. If fuse is okay, go to step 11 .
  10. Check Circuit No. 1040 For Short To Ground Using DVOM, measure resistance between shift lock actuator connector terminal No. 3 (Red/Black wire) and ground. If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Red/Black wire between fuse No. 10 and shift lock actuator connector. Reconnect all connectors and retest system.
  11. Check Circuit No. 1040 For Open Using DVOM, measure resistance between fuse No. 10 output terminal and shift lock actuator harness connector terminal No. 3 (Red/Black wire). If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Red/Black wire between fuse No. 10 and shift lock actuator connector. Reconnect all connectors and retest system.
  12. Check Circuit No. 57 For Open Using DVOM, measure resistance between shift lock actuator harness connector terminal No. 2 (Black wire) and ground. If resistance is 5 ohms or less, replace shift lock actuator. Reconnect all connectors and retest system. If resistance is more than 5 ohms, repair open in Black wire between shift lock actuator connector and ground.

SHIFT INTERLOCK CABLE

Note. Procedures for removal and installation of shift lock cable is given in GEARSHIFT LEVER ASSEMBLY for all other models.

SHIFT INTERLOCK ACTUATOR

Note. For all other models, the shift lock actuator is part of the shift lock cable. See SHIFT INTERLOCK CABLE or GEARSHIFT LEVER ASSEMBLY procedures to remove actuator.

More articles — Shift Interlock Systems