Left Rear Door and Liftgate Unlock Only

LEFT DOORS AND LIFTGATE UNLOCK ONLY






POSSIBLE CAUSES
- (P393) Door lock driver left doors circuit short to ground
- Cluster

NOTE: If the P393 circuit is shorted, the fuse may blow after one attempt to operate the locks.

Theory of operation
The Door Lock Driver Right Doors circuit and the Door Lock Driver Left Doors circuits are connected together inside the module. Therefore any circuit that is connected to either one can set this code.

Diagnostic Test

1. CHECK FOR ACTIVE DTC's

Turn the ignition on.
With the scan tool, read active DTC's.

Q: Does the scan tool display any Door Lock related DTC's?

NO: Go To 2
YES: Refer to the symptom list for problems related to Power Door Locks. Diagnose and repair the DTC's

2. CHECK (P393) DOOR LOCK DRIVER LEFT DOORS CIRCUIT FOR A SHORT TO GROUND




Turn the ignition off.
Disconnect the Cluster C1 connector.
Measure the resistance between ground and the (P393) Door Lock Driver Left Doors circuit.

Q: Is the resistance below 1000.0 ohms?

NO: Replace the Cluster. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
YES: Repair the (P393) Door Lock Driver Left Doors circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test