Liftgate Door Ajar Circuit Short To Ground

*LIFTGATE DOOR AJAR CIRCUIT SHORT TO GROUND





For a complete wiring diagram Consult 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.