Left Rear Door Ajar Circuit Open

*LEFT REAR DOOR AJAR CIRCUIT OPEN





For a complete wiring diagram Consult Diagrams/Electrical





Diagnostic Test

1. BCM NOT RESPONDING TO INPUT
Open the left rear door.
With the scan tool in Inputs/Outputs, read the LR DOOR AJAR SW state.
Does the scan tool display CLOSED?

Yes

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

No

- Go To 2

2. (G983) GROUND CIRCUIT OPEN




Disconnect the Driver Rear Door Lock Motor/Ajar Switch harness connector.
Using a 12-volt Test Light connected to 12-volts, check the (G983) Ground circuit.
Does the test light illuminate brightly?

Yes

- Go To 3

No

- Repair the (G983) Ground circuit for an open to the Driver Door Module C1 connector.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

3. LEFT REAR DOOR LOCK MOTOR/AJAR SWITCH OPEN




Connect a jumper wire between the (G77) Left Rear Door Ajar Switch Sense circuit and the (G983) Ground circuit.
With the scan tool in Inputs/Outputs, read the LR DOOR AJAR SW state.
Does the scan tool display CLOSED?

Yes

- Replace the Left Rear Door Lock Motor/Ajar Switch .
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

No

- Go To 4

4. (G77) LEFT REAR DOOR AJAR SWITCH SENSE CIRCUIT OPEN




Turn the ignition off.
Disconnect the BCM C2 connector.
Turn the ignition on.
Measure the resistance of the (G77) Left Rear Door Ajar Switch Sense circuit between the BCM C2 connector to the Driver Rear Door Lock Motor/Ajar Switch connector.
Is the resistance below 5.0 ohms?

Yes

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

No

- Repair the (G77) Left Rear Door Ajar Switch Sense circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.