One Passenger Door Fails to Lock and Unlock

ONE PASSENGER DOOR FAILS TO LOCK AND UNLOCK

One Passenger Door Fails To Lock And Unlock:

POSSIBLE CAUSES
- (P33) door lock relay output wire open
- (P35) door unlock relay output wire open
- Door lock motor - open

DIAGNOSTIC TEST

1. CHECK DOOR LOCK MOTOR




Remove the inner door trim panel to gain access to the Door Lock Motor connector.
Disconnect the appropriate Door Lock Motor connector.
Turn ignition on.
Connect a test light between the (P33) Lock Relay Output and the (P35) Unlock Relay Output circuits in the door lock motor connector.
Press the door lock switch to the Lock and Unlock positions.

Q: Did the test light illuminate when the lock switch was pressed in both directions?

YES: Replace the Door Lock Motor.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 2

2. CHECK (P35) DOOR UNLOCK RELAY OUTPUT WIRE FOR AN OPEN




Using a 12-volt test light connected to ground, check the (P35) Door Unlock Relay Output circuit.
With the scan tool, actuate the Door Unlock Relay.

Q: Does the test light illuminate brightly when the relay is actuated?

YES: Go To 3
NO: Repair the (P35) Door Unlock Relay Output wire for an open.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

3. CHECK(P33) DOOR LOCK RELAY OUTPUT WIRE FOR AN OPEN




Turn ignition off.
Using a 12-volt test light connected to ground, check the (P33) Door Lock Relay Output circuit.
With the scan tool, actuate the Door Lock Relay.

Q: Does the test light illuminate brightly when the relay is actuated?

YES: Test Complete.
NO: Repair the (P33) Door Lock Relay Output wire for an open.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test