All Door Locks Inoperative

*ALL DOOR LOCKS INOPERATIVE





For a complete wiring diagram refer to Diagrams/Electrical.





Diagnostic Test

1. DTC PRESENT

Turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display any Door Lock or Cluster related DTC's?

Yes

- Refer to repair the DTC's.

No

- Go To 2

2. FUSE #20 OPEN





With the fuse installed, test both sides of fuse #20 in the IPM.

Is there 12 volts on both sides of the fuse?

Yes

- Go To 3

No

- Replace the fuse if open and retry the system. If the fuse blows, locate and repair a short to the Instrument Cluster. The 12 volt supply to the fuse is a bus bar in the IPM.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

3. (A924) FUSED B+ CIRCUIT OPEN





Turn the ignition off.

Disconnect the Cluster C1 connector.

Using a 12-volt test light connected to ground, check both (A924) Fused B+ circuits in the Cluster connector.

Does the test light illuminate brightly at both terminals?

Yes

- Go To 4

No

- Repair the Fused B+ circuits for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

4. (Z946) GROUND CIRCUIT OPEN





Using a 12-volt test light connected to 12-volts, check the (Z946) Ground circuit in the Cluster connector.

Does the test light illuminate brightly?

Yes

- Replace the Instrument Cluster.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Repair the (Z946) Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test