Liftgate Door Ajar Circuit Short To Ground

*LIFTGATE DOOR AJAR CIRCUIT SHORT TO GROUND





For a complete wiring diagram refer to Diagrams/Electrical.





Diagnostic Test

1. LIFTGATE AJAR SWITCH SHORT TO GROUND





With the scan tool in Inputs/Outputs, read the LIFTGATE AJAR SW state.

Disconnect the Liftgate Latch connector.

With the scan tool in Inputs/Outputs, read the LIFTGATE AJAR SW state.

Did the Switch State change from CLOSED to OPEN when the switch was disconnected?

Yes

- Replace the Liftgate Latch Assembly.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 2

2. (G78) LIFTGATE AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND





Disconnect the BCM C3 harness connector.

Using a 12-volt Test Light connected to 12-volts, check the (G78) Liftgate Ajar Switch Sense circuit.

Does the Test Light illuminate brightly?

Yes

- Repair the (G78) Liftgate Ajar Switch Sense circuit for a short to ground.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Body Control Module.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test