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Home >> Jeep >> 2002 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> System Tests >> Chime >> Key In Ignition And Driver's Door Open Chime Inoperative
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Key In Ignition And Driver's Door Open Chime Inoperative

Possible Causes:

Testing

  1. Turn the ignition on. With the DRBIII(R), read BCM DTC'S. Does the DRBIII(R) display any Cluster Wake Up Output or Communication DTC's? If yes, refer to symptom list for the appropriate symptom. See SYMPTOM IDENTIFICATION  table. Perform BODY VERIFICATION TEST  . If no, go to next step.
    2. NOTE: Ensure that the Key is still in the Ignition Switch.
  2. The driver's door ajar switch must be operational for the result of this test to be valid. With the DRBIII(R) enter Body Computer then Input/Output and read the Key-In Ignition Switch status. Does the DRBIII(R) display: KEY-IN IGNITION: CLOSED? If yes, replace the Body Control Module. Perform BODY VERIFICATION TEST  . If no, go to next step.
  3. Turn the ignition on. Disconnect the Ignition Switch harness connector. Connect a jumper between the Key-In Ignition Switch Sense circuit and the Ground circuit. With the DRBIII(R), enter Body Computer then Input/Output and observe the Key-In Ignition Switch status. Does the DRBIII(R) display: KEY-IN IGNITION: CLOSED? If yes, replace the Ignition Switch. Perform BODY VERIFICATION TEST  . If no, go to next step.
  4. Turn the ignition off. Disconnect the Ignition Switch harness connector. Turn all lights off. Measure the resistance between ground and the ground circuit in the ignition switch connector. Is the resistance below 5.0 ohms? If yes, go to next step. If no, repair the ground circuit for an open. Perform BODY VERIFICATION TEST  .
  5. Turn the ignition off. Disconnect the Ignition Switch harness connector. Disconnect the Body Control Module C1 harness connector. Measure the resistance of the Key-In Ignition Switch Sense circuit between the ignition switch connector and the BCM harness C1 connector. Is the resistance below 5.0 ohms? If yes, go to next step. If no, repair the Key-In Ignition Switch Sense circuit for an open. Perform BODY VERIFICATION TEST  .
  6. If there are no possible causes remaining, replace the Body Control Module. See BODY CONTROL MODULE  . Perform BODY VERIFICATION TEST  .
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