Door Ajar Indicator Malfunction (Without RPO AXC/AXE)
Door Ajar Indicator Malfunction (Without RPO AXC/AXE)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) receives a discrete input from the respective jamb switch to indicate the status of the door. The BCM then communicates this status to the instrument panel cluster (IPC) via a serial data message. The IPC, upon receipt of this serial data message, will illuminate the appropriate ajar message in the driver information center (DIC) and also send a serial data massage to the radio to activate the door ajar audible warning when the transmission is removed from PARK and the vehicle speed is greater then 8 km/h (5 mph).
The door ajar switches supply a ground to the BCM when the door is open. Once the door is closed the door ajar switch opens removing the ground to the BCM. The BCM sends a signal to the IPC to turn on the door ajar light when a door is open.
Reference Information
Schematic Reference
Door Lock/Indicator Schematics (AXE) Door Lock/Indicator Schematics (AXE)Door Lock/Indicator Schematics (Except AXE) Door Lock/Indicator Schematics (Except AXE)
Connector End View Reference
Component Connector End Views A/C Compressor Clutch
Description and Operation
Door Ajar Indicator Description and Operation Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Programming and Relearning for scan tool information
Circuit/System Verification
Ignition ON, with all doors closed, observe the scan tool Driver Door Ajar Sw., Passenger Door Ajar Sw., Left Rear Door Ajar Sw. and Right Rear Door Ajar Sw. parameters while opening and closing each door. The parameters should change between Door Closed and Door Ajar.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the appropriate door latch.
2. Test for less than 1.0 ohm between ground circuit terminal listed below and ground:
* Driver door latch terminal 8
* Left rear door latch terminal 6
* Passenger door latch terminal 3
* Right rear door latch terminal 3
• If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the appropriate scan tool Door Ajar Sw. parameter is Door Closed.
• If not the specified value, test the signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the BCM.
* Driver door latch terminal 6
* Left rear door latch terminal 4
* Passenger door latch terminal 1
* Right rear door latch terminal 1
4. Install a 3A fused jumper wire between the signal circuit terminal and the ground circuit terminal listed below. Verify the scan tool Door Ajar Sw. parameter is Door Ajar.
* Driver door latch terminal 6 and terminal 8
* Left rear door latch terminal 4 and terminal 6
* Passenger door latch terminal 1 and terminal 3
* Right rear door latch terminal 1 and terminal 3
• 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 latch.
Component Testing
1. Ignition OFF, disconnect the harness connector at the appropriate door latch.
2. With the switch in the open position, test for infinite resistance between the signal terminal and the ground terminal listed below:
* Driver door latch terminal 6 and terminal 8.
* Left rear door latch terminal 4 and terminal 6.
* Passenger door latch terminal 1 and terminal 3.
* Right rear door latch terminal 1 and terminal 3.
• If not the specified value, replace the door latch.
3. With the switch in the closed position, test for less than 2.0 ohms between the signal and the ground terminals listed below:
* Driver door latch terminal 6 and terminal 8.
* Left rear door latch terminal 4 and terminal 6.
* Passenger door latch terminal 1 and terminal 3.
* Right rear door latch terminal 1 and terminal 3.
• If not the specified value, replace the door latch.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Front Side Door Latch Replacement Service and Repair
* Rear Side Door Latch Replacement Service and Repair
* Control Module References Programming and Relearning for BCM replacement, setup, and programming