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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Body Diagnostic Procedures) >> Diagnostic Information And Procedure >> Power Door Locks/RKE >> Symptom: *One Door Fails To Lock And Unlock From Any Switch >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
ONE DOOR FAILS TO LOCK AND UNLOCK FROM ANY SWITCH - DIAGNOSTIC PROCEDURE

TEST ACTION
1 Turn the ignition off.
Disconnect the Door Lock Motor connector.
Using a 12-volt test light, connect one end to the Door Unlock Relay Output circuit and the other to the Door Lock Relay Output circuit in the Door Lock Motor connector.
With the DRBIII(R), actuate the Door Lock Relay and then the Door Unlock Relay
Did the test light illuminate brightly when the door lock was actuated in both directions?
  1. Yes --> Replace the Door Lock Motor.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 2
2 Turn the ignition off.
Disconnect the Central Timer Module C2 connector.
Disconnect the Door Lock Motor connector.
Measure the resistance between Ground and the Door Unlock Relay Output circuit.
Is the resistance below 100.0 ohm?
  1. Yes --> Repair the Door Unlock Relay Output circuit for a short to ground.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 3
3 Turn the ignition off.
Disconnect the Central Timer Module C2 connector.
Disconnect the Door Lock Motor connector.
Measure the resistance between Ground and the Door Lock Relay Output circuit.
Is the resistance below 100.0 ohms?
  1. Yes --> Repair the Door Lock Relay Output circuit for a short to ground.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 4
4 Turn the ignition off.
Disconnect the Central Timer Module C2 connector.
Disconnect the Door Lock Motor connector.
Measure the resistance of the Door Unlock Relay Output circuit between the CTM C2 connector and the Door Lock Motor connector.
Is the resistance below 5.0 ohm?
  1. Yes --> Go To 5
  2. No --> Repair the Door Unlock Relay Output circuit for an open.

    Perform BODY VERIFICATION TEST - VER 1  .
5 Turn the ignition off.
Disconnect the Central Timer Module C2 connector.
Disconnect the Door Lock Motor connector.
Measure the resistance of the Door Lock Relay Output circuit between the CTM C2 connector and the Door Lock Motor connector.
Is the resistance below 5.0 ohm?
  1. Yes --> Test Complete.
  2. No --> Repair the Door Lock Relay Output circuit for an open.

    Perform BODY VERIFICATION TEST - VER 1  .
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