Door Ajar Indicator Malfunction

Door Ajar Indicator Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.



Diagnostic Fault Information






Circuit/System Description

The door ajar switches supply a ground to the rear fuse block when the door is open. Once the door is closed the door ajar switch opens removing the ground to the rear fuse block. The rear fuse block sends a signal to the instrument panel cluster (IPC) to illuminate the door ajar indicator when a door is open.


Reference Information
Schematic Reference

Door Lock/Indicator Schematics (Door Lock/Indicator Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Door Ajar Indicator Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information


Circuit/System Verification

Ignition ON, observe the scan tool Driver Door Status, Passenger Door Status, Rear Left Door Status and Rear Right Door Status parameters while opening and closing each door. The parameters should change from Door Closed to Door Open while opening and closing the doors.


Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate door lock.
2. Test for less than 1 ohm between the ground circuit terminal listed below and ground:

* Driver door lock ground circuit terminal 7
* Passenger door lock ground circuit terminal 7
* Left rear door lock ground circuit terminal 4
* Right rear door lock ground circuit terminal 4


• If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify the scan tool Driver Door Status, Passenger Door Status, Rear Left Door Status and Rear Right Door Status parameters is Door Closed.

• If not the specified value, test the appropriate signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the rear fuse block.


* Driver door lock signal circuit terminal 6
* Passenger door lock signal circuit terminal 6
* Left rear door lock signal circuit terminal 5
* Right rear door lock signal circuit terminal 5

4. Install a 3A fused jumper wire between the signal circuit terminal listed below and ground:

* Driver door lock signal circuit terminal 6
* Passenger door lock signal circuit terminal 6
* Left rear door lock signal circuit terminal 5
* Right rear door lock signal circuit terminal 5

5. Verify the scan tool Driver Door Status, Passenger Door Status, Rear Left Door Status and Rear Right Door Status parameters are Door Open.

• If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the rear fuse block.

6. If all circuits test normal, test or replace the door lock.



Component Testing

1. Ignition OFF, disconnect the harness connector at the appropriate door lock.
2. Test for infinite resistance between the signal terminal and the ground terminal listed below with the door lock in the open position.

* Driver door lock signal terminal 6 and ground terminal 7
* Passenger door lock signal terminal 6 and ground terminal 7
* Left rear door lock signal terminal 5 and ground terminal 4
* Right rear door lock signal terminal 5 and ground terminal 4


• If not the specified value, replace the door lock.

3. Test for less than 2 ohms between the signal terminal and the ground terminal listed below with the door lock in the closed position.

* Driver door lock signal terminal 6 and ground terminal 7
* Passenger door lock signal terminal 6 and ground terminal 7
* Left rear door lock signal terminal 5 and ground terminal 4
* Right rear door lock signal terminal 5 and ground terminal 4


• If greater than the specified range, replace the door lock.




Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Front Side Door Lock Replacement (Front Side Door Lock Replacement)
* Rear Door Lock Replacement (Rear Door Lock Replacement)
* Control Module References (Programming and Relearning) for rear fuse block replacement, setup, and programming