Driver Door Lock Switch Inoperative

DRIVER DOOR LOCK SWITCH INOPERATIVE





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






NOTE: This test is only for vehicles that have the Base (not express up) Power Window System.

1. (G775) LEFT DOOR LOCK SWITCH RETURN CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the Driver Window/Door Lock Switch C2 connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to 12-volts, check the (G775) Left Door Lock Switch Return circuit

Does the Test Light illuminate brightly?

Yes

- Go To 2

No

- NOTE: The (G775) Left Door Lock Switch Return circuit passes through the Door Module to ground.
- Repair the (G775) Left Door Lock Switch Return circuit for an open.
- Perform the BODY VERIFICATION TEST.Body Verification Test ,

2. DOOR LOCK SWITCH SHORTED




1. Measure the voltage of the (G161) Left Door Lock Switch Mux circuit.

Is the voltage approximately 5.0 volts?

Yes

- Replace the Driver Window/Door Lock Switch.
- Perform the BODY VERIFICATION TEST.Body Verification Test ,

No

- Go To 3

3. (G161) LEFT DOOR LOCK SWITCH MUX CIRCUIT SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Door Module C2 connector.
3. Measure the resistance between ground and the (G161) Left Door Lock Switch Mux circuit.

Is the resistance below 10,000 ohms?

Yes

- Repair the (G161) Left Door Lock Switch Mux circuit for a short to ground.
- Perform the BODY VERIFICATION TEST.Body Verification Test ,

No

- Go To 4

4. (G161) LEFT DOOR LOCK SWITCH MUX CIRCUIT OPEN




1. Measure the resistance of the (G161) Left Door Lock Switch Mux circuit between the Door Module C2 connector and the Driver Window/Door Lock Switch C2 connector.

Is the resistance below 5.0 ohms?

No

- Repair the (G161) Left Door Lock Switch Mux circuit for an open.
- Perform the BODY VERIFICATION TEST.Body Verification Test ,

Yes

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