*LEFT REAR DOOR AJAR CIRCUIT SHORT TO GROUND
For a complete wiring diagram Refer to Section 8W.
Theory of Operation
The scan tool will display the door state NOT the switch state. It will display as True/False. True states that the door is ajar (open). False states that the door is NOT ajar (closed).
| Possible Causes |
| (G77) LEFT REAR DOOR AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND |
| DOOR LOCK MOTOR/AJAR SWITCH |
| BODY CONTROL MODULE |
Diagnostic Test
1.CHECK FOR SHORTED DOOR AJAR SWITCH
Does the scan tool display LEFT REAR DOOR AJAR SW: FALSE?
Yes
- Replace the Door Lock Motor/Ajar Switch.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To2
2.
Is the resistance below 1000.0 ohms?
No
- Replace the Body Control Module in accordance with service information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
Yes
- Repair the (G77) Left Rear Door Ajar Switch Sense circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)