Left Rear Door Ajar Circuit Open

LEFT REAR DOOR AJAR CIRCUIT OPEN












1. OPEN LEFT REAR DOOR AJAR SWITCH




1. Disconnect the Left Rear Door Latch connector.
2. Connect a jumper wire between the (G77) Sense circuit and the Ground circuit.
3. With the scan tool in Inputs/Outputs, read the L R DOOR AJAR SW state.

Does the scan tool display CLOSED?

Yes

- Replace the Left Rear Door Latch.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 2

2. OPEN (Z79/Z917) LEFT REAR DOOR AJAR SWITCH GROUND CIRCUIT




1. Using a 12-volt Test Light connected to 12-volts, test the (Z79/Z917) Ground circuit in the Door Latch connector.

Does the test light illuminate brightly?

Yes

- Go To 3

No

- Repair the (Z79/Z917) Left Rear Door Ajar Switch Ground circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

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




1. Turn the ignition off.
2. Disconnect the Instrument Cluster C3 harness connector.
3. Measure the resistance of the (G77) Left Rear Door Ajar Switch Sense circuit between the Instrument Cluster connector and the Door Latch connector.

Is the resistance below 5.0 Ohms?

Yes

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

No

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