Right Doors Fail To Lock And Unlock - Quad Cab

RIGHT DOORS FAIL TO LOCK AND UNLOCK - QUAD CAB





For a complete wiring diagram,






1. DTC PRESENT
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool display any Door Lock related DTCs?

Yes

- Diagnose and repair the DTC(s).

No

- Go To 2

2. INSTRUMENT CLUSTER




1. Turn the ignition off.
2. Disconnect the Instrument Cluster C1 connector.
3. Connect a jumper wire between the (G778) Door Unlock Driver Right Doors circuit in the Instrument Cluster C1 connector and ground.
4. Momentarily connect a fused jumper wire between the Fused B+ circuit and the (P392) Door Lock Driver Right Doors circuit in the Instrument Cluster C1 connector.
5. Reverse the jumper wires to drive the motors in the opposite direction.

Did the Right Doors lock and unlock?

Yes

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

No

- Go To 3

3. (P392) DOOR LOCK DRIVER RIGHT DOORS WIRE OPEN




1. Disconnect the Right Front Door Latch connector.
2. Measure the resistance of the (P392) Door Lock Driver Right Doors circuit between the Instrument Cluster C1 connector and the Right Front Door Latch connector.

Is the resistance below 5.0 Ohms?

Yes

- Go To 4

No

- Repair the (P392) Door Lock Driver Right Doors wire for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. (G778) DOOR UNLOCK DRIVER RIGHT DOORS WIRE OPEN




1. Measure the resistance of the (G778) Door Unlock Driver Right Doors circuit between the Instrument Cluster C1 connector and the Right Front Door Latch connector.

Is the resistance below 5.0 Ohms?

Yes

- Replace the Door Latch.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (G778) Door Unlock Driver Right Doors wire for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.