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Symptom: *LEFT REAR DOOR FAILS TO LOCK & UNLOCK POSSIBLE CAUSES OPEN DOOR LOCK MOTOR OPEN DOOR LOCK DRIVER WIRE OPEN DOOR UNLOCK DRIVER WIRE TEST ACTION APPLICABILITY 1 Remove the inner door trim panel to gain access to the Door Lock Motor/Ajar Switch 9C19 connector is connected. Connect a test light between the Door Lock Driver and the Door Unlock Driver 9Pas Lock Relay9 and then the 9Pas Unlock Relay9 and observe the test light. All Yes → Replace the Door Lock Motor. No → 2 Remove the inner door trim panel to gain access to the Door Lock Motor/Ajar Switch 9C19 connector. Measure the resistance of the Door Lock Driver circuit between the PDM C1 All Yes → No → Repair the open Door Lock Driver wire. 3 Remove the inner door trim panel to gain access to the Door Lock Motor/Ajar Switch 9C19 connector. Measure the resistance of the Door Unlock Driver circuit between the PDM connector All Yes → Test Complete. No → Repair the open Door Unlock Driver wire. 479 POWER DOOR LOCKS/RKE |