Passenger Door Ajar Circuit Open

Possible Causes:

• Passenger Door Ajar Switch Ground Circuit Open
• Passenger Door Ajar Switch
• Passenger Door Ajar Switch Sense Circuit Open
• Body Control Module Internal Malfunction

Testing

1. Disconnect the Passenger Door Ajar switch connector. Using a 12-volt Test Light connected to 12-volts, probe the Ground circuit and test for continuity. Does the light illuminate? If yes, go to next step. If no, repair the Passenger Door Ajar Switch Ground circuit for an open. Perform BODY VERIFICATION TEST  .
2. Disconnect the Passenger Door Ajar Switch connector. Connect a jumper wire between the Sense circuit and the Ground circuit. With the DRBIII(R) in Inputs/Outputs, read the PASS DOOR AJAR SW state. Does the DRBIII(R) display CLOSED? If yes, replace the Passenger Door Lock Motor/Ajar Switch. Perform BODY VERIFICATION TEST  . If no, go to next step.
3. Disconnect the Passenger Door Ajar Switch harness connector. Disconnect the BCM C1 harness connector. Measure the resistance of the Sense circuit between the BCM C1 connector and the Door Ajar Switch connector. Is the resistance below 5.0 ohms? If yes, replace the Body Control Module. Perform BODY VERIFICATION TEST  . If no, repair the Passenger Door Ajar Switch Sense circuit for an open. Perform BODY VERIFICATION TEST  .