Diesel Data: Automotive Repair

Passenger Doors Fail To Unlock






PASSENGER DOORS FAIL TO UNLOCK





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





(P303) PASSENGER DOORS UNLOCK DRIVER CIRCUIT SHORT TO GROUND

NOTE: If only one motor fails to unlock when the door locks are actuated, disconnect that motor and retest to see if the other doors unlock properly. If they do, replace the defective motor.





1. Turn the ignition off.
2. Disconnect the Cluster C1 connector.
3. Measure the resistance between ground and the (P303) Passenger Doors Unlock Driver circuit.

Is the resistance below 1,000 ohms?

No

- Replace the Cluster.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

Yes

- Repair the (P303) Passenger Doors Unlock Driver circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.