Door Ajar Indicator Malfunction (Non Panel Van)

Door Ajar Indicator Malfunction (Non Panel Van)

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 body control module (BCM) provides voltage to each door jamb switch via the door ajar switch signal circuit. The door lamb switches are permanently grounded. The door ajar switches are normally open when the door is fully closed. When a door is opened, the door ajar switch contacts close providing a path to ground. The driver information center (DIC), illuminates the DOOR AJAR indicator when the BCM detects that one of the doors is open. The instrument panel cluster (IPC) receives a serial data message from the BCM indicating the door ajar status. If this message is displayed and the vehicle speed is greater than 5 km/h (3 mph), a chime will sound.


Reference Information
Schematic Reference

Interior Lights Schematics (Interior Lights Diagram)
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

1. Ignition ON, observe the scan tool Driver Door Ajar Sw parameter while opening and closing the driver door. The parameter should change between Door Closed and Door Ajar.

• If the parameter does not change, refer to Driver Door Ajar Malfunction.

2. With the passenger doors closed, observe the scan tool Door Ajar Switch parameter while opening and closing each door. The parameter should change between Door Closed and Door Ajar.

• If the parameter does not change, refer to Passenger Door Ajar Malfunction.




Circuit/System Testing


Driver Door Ajar Malfunction
1. Ignition OFF, disconnect the harness connector at the LF door jamb switch.
2. Test for less than 1 ohm between the ground circuit terminal B and ground.

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

3. Ignition ON, verify the scan tool Driver Door Ajar Sw parameter and is Door Closed.

• If not the specified value, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the BCM.

4. Install a 3A fused jumper wire between the signal circuit terminal A and the ground circuit terminal B. Verify the scan tool Driver Door Ajar Sw parameter is Door Ajar.

• 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 BCM.

5. If all circuits test normal, test or replace the LF door jamb switch.



Passenger Door Ajar Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate door jamb switch.
2. Test for less than 1.0 ohm between the ground circuit terminal B and ground.

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

3. Ignition ON, verify the scan tool Door Ajar Switch parameter is Door Closed.

• If not the specified parameter, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the BCM.

4. Install a 3A fused jumper wire between the signal circuit terminal A and the ground circuit terminal B. Verify the scan tool Door Ajar Switch parameter is Door Ajar.

• 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 BCM.

5. If all circuits test normal, test or replace the door jamb switch.



Component Testing

1. Ignition OFF, disconnect the harness connector at the appropriate door jamb switch.
2. Test for infinite resistance between the signal terminal A and the ground terminal B with the door jamb switch in the open position

• If not the specified value, replace the door jamb switch.

3. Test for less than 2.0 ohms between the signal terminal A and the ground terminal B with the door jamb switch in the closed position.

• If greater than the specified range, replace the door jamb switch.




Repair Instructions

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

* Front Side Door Jamb Switch Replacement (Front Side Door Jamb Switch Replacement)
* Rear Door Jamb Switch Replacement (Rear Door Jamb Switch Replacement)
* Control Module References (Programming and Relearning) for and BCM replacement, setup, and programming