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Pinpoint Test F - Power Door Locks Do Not Function Properly

  1. Lock and unlock each door several times from each individual switch. If doors lock and unlock properly, go to step 12). If one or more locks do not work, go to the next step. If one door lock switch does not work, go to step 8). If no locks work, go to PINPOINT TEST B  .
  2. Turn ignition off. Disconnect inoperative lock actuator connector. Measure voltage on lock signal wire between actuator connector and ground, while pressing lock side of switch. Measure voltage on unlock signal wire between actuator connector and ground while pressing unlock side of switch. If voltage is more than 10 volts on lock and unlock wires, replace inoperative actuator. If voltage on lock wire is incorrect, go to next step. If voltage on unlock wire is incorrect, go to step 5).
    DOOR LOCK ACTUATOR WIRE COLORS

    Wire Color Function
    Green/Yellow Lock Left Front Door
    White/Red Unlock Left Front Door
    Green/Yellow Lock Right Front Door
    White/Red Unlock Right Front Door
    Green/Yellow Lock Side Door
    White/Red Unlock Side Door
    Green/Yellow Lock Liftgate
    White/Red Unlock Liftgate
  3. Turn ignition off. Disconnect all power lock actuator connectors. Disconnect 8-pin control module connector. Measure resistance on lock signal wires between 8-pin connector and ground. Measure resistance on lock signal wires between actuator connector and 8-pin connector. If resistance is more than 10,000 ohms between connector and ground, and less than 5 ohms between connectors, go to next step. If resistances are not correct, repair faulty lock signal wire.
  4. Reconnect 8-pin module connector. Measure voltage on Green/Yellow lock signal wire between 8-pin module connector and ground, while pressing lock side of switch. If voltage is more than 10 volts, go to step 7). If voltage is less than 10 volts, replace control module.
  5. Turn ignition off. Disconnect inoperative power lock actuator connector. Disconnect 8-pin module connector. Measure resistance of unlock signal wire between 8-pin connector and ground. Measure resistance of unlock signal wire between 8-pin module connector and actuator connector. If resistance is more than 10,000 ohms between connector and ground, and less than 5 ohms between connectors, go to next step. If resistances are incorrect, repair unlock signal wire.
  6. Reconnect 8-pin module connector. Measure voltage on unlock signal wire between 8-pin module connector and ground while pressing unlock side of door switch. If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, replace control module.
  7. With 8-pin module connector connected, measure voltage of wires listed in CONTROL MODULE VOLTAGE SPECIFICATIONS table between 8-pin control module connector and ground, while placing door lock switch in listed positions. If voltages are correct in all listed positions, actuator circuits and actuators are okay. Return to symptom chart. If any voltages are not correct, replace control module.
    CONTROL MODULE VOLTAGE SPECIFICATIONS

    Function Wire Color Volts
    Door Lock Switch in Neutral
    Lock All Doors Green/Yellow Zero
    Unlock Liftgate Green/Orange Zero
    Unlock Left Door White/Red Zero
    Unlock Right Door White/Red Zero
    Unlock Side Door White/Red Zero
    Door Lock Switch in Lock Position
    Lock All Doors Green/Yellow More Than 10
    Unlock Liftgate Green/Orange Zero
    Unlock Left Door White/Red Zero
    Unlock Right Door White/Red Zero
    Unlock Side Door White/Red Zero
    Door Lock Switch in Unlock Position
    Lock All Doors Green/Yellow Zero
    Unlock Liftgate Green/Orange More Than 10
    Unlock Left Door White/Red More Than 10
    Unlock Right Door White/Red More Than 10
    Unlock Side Door White/Red More Than 10
  8. Turn ignition off. Disconnect inoperative power lock switch connector. Measure resistance between Green/White and Black wire terminals of switch while pressing LOCK side of switch. Measure resistance between Green/Orange and Black wire terminals of switch while pressing UNLOCK side of switch. If resistance is less than 5 ohms in LOCK position, and more than 10,000 ohms in UNLOCK position, go to next step. If resistances are incorrect, replace lock switch.
  9. Turn ignition off. Disconnect inoperative power lock actuator connector. Disconnect 20-pin module connector. Measure resistance of Green/White wire between 20-pin connector and ground. Measure resistance of Green/White wire between 20-pin module connector and actuator connector. If resistance is more than 10,000 ohms between connector and ground and less than 5 ohms between connectors, go to next step. If resistances are incorrect, repair Green/White wire.
  10. Turn ignition off. Disconnect inoperative power lock actuator connector. Disconnect 20-pin module connector. Measure resistance of Green/Orange wire between 20-pin connector and ground. Measure resistance of Green/Orange wire between 20-pin module connector and actuator connector. If resistance is more than 10,000 ohms between connector and ground and less than 5 ohms between connectors, go to next step. If resistances are incorrect, repair Green/Orange wire.
  11. Turn ignition off. Disconnect inoperative lock switch connector. Measure resistance of Black wire between connector and ground. If resistance is less than 5 ohms, replace control module. If resistance is more than 5 ohms, repair Black wire.
  12. Unlock all doors using front door lock switch. Move driver's switch to LOCK position. Repeat procedure using driver's side key switch. If lock switch locks all doors, door lock circuit is okay. Return to symptom chart. If all locks do not lock, go to next step.
  13. Turn ignition off. Disconnect driver's door power lock actuator connector. Disconnect 20-pin module connector. Measure resistance of Green/Red wire between 20-pin connector and ground. Measure resistance of Green/Red wire between 20-pin module connector and actuator connector. If resistance is more than 10,000 ohms between connector and ground and less than 5 ohms between connectors, go to next step. If resistances are incorrect, repair Green/Red wire.
  14. Turn ignition off. Disconnect driver's door lock actuator connector. Measure resistance of Black wire between connector and ground. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair Black wire.
  15. Turn ignition off. Disconnect driver's door lock actuator connector. Move lock knob to LOCK position. Measure resistance between Green/Red wire terminal and Black wire terminal at actuator. Measure resistance again with switch in UNLOCK position. If resistance is less than 5 ohms in UNLOCK position and more than 10,000 ohms with switch in LOCK position, replace control module. If resistances are not correct, replace driver's door lock actuator.
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