Passenger Door Unlatch Inoperative

PASSENGER DOOR UNLATCH INOPERATIVE





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams






1. DTC PRESENT
1. With the scan tool, read the DTCs.

Does the scan tool display any Door Lock related trouble codes?

Yes

- Perform the appropriate diagnostic procedure. Body Control System.

No

- Go To 2

2. LATCH MOTOR




1. Disconnect the Latch Motor connector.
2. Connect a 12-volt test light between the (P126) Passenger Door Unlatch Driver circuit and the (P128) Passenger Door Unlatch Return circuit.
3. With the scan tool, actuate the UNLATCH PASS DOOR and then actuate RETURN LATCH.

Did the test light illuminate brightly when the door was actuated?

Yes

- Replace the Latch Motor.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. PASSENGER DOOR UNLATCH DRIVER CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the Body Control Module C2 connector.
3. Measure the resistance of the (P126) Passenger Door Unlatch Driver circuit between the BCM C2 connector and the Latch Motor connector.

Is the resistance below 2.0 ohms?

Yes

- Go To 4

No

- Repair the (P126) Passenger Door Unlatch Driver circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. (P128) PASSENGER DOOR UNLATCH RETURN CIRCUIT OPEN




1. Measure the resistance of the (P128) Passenger Door Unlatch Return circuit between the BCM C2 connector and the Latch Motor connector.

Is the resistance below 2.0 ohms?

Yes

- Replace the Body Control Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the Passenger Door Unlatch Return circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.