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 body control module (BCM) monitors each door ajar circuit to indicate the status of the door. When the respective door is opened, the door ajar signal circuit is switched to ground by the door lock ajar indicator switch, the BCM detects the drop in voltage in the circuit and 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 when the transaxle is shifted out of PARK, the DIC will also send a serial data message to the radio to activate the door ajar audible warning.
Reference Information
Schematic Reference
Door Lock/Indicator Schematics (Door Lock/Indicator Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Power Door Locks 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 appropriate scan tool Door Ajar Switch parameter while opening and closing the appropriate door. The reading should change between Closed and Ajar.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the appropriate door lock.
2. Test for less than 1.0 ohm between the appropriate ground circuit terminal listed below and ground.
* Driver door lock terminal 8
* Front passenger door lock terminal 3
* LR door lock terminal 6
* RR door lock terminal 3
• 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 Closed.
• If not the specified value, test the appropriate signal circuit terminal listed below for a short to ground.
* Driver door lock terminal 6
* Front passenger door lock terminal 1
* LR door lock terminal 4
* RR door lock terminal 1
• If the circuit tests normal, replace the BCM.
4. Install a 3A fused jumper wire between the appropriate signal circuit terminal and the ground circuit terminal listed below.
* Driver door lock terminal 6 and 8
* Front passenger door lock terminal 1 and 3
* LR door lock terminal 4 and 6
* RR door lock terminal 1 and 3
5. Verify the scan tool Door Ajar Switch parameter is Ajar.
• If not the specified value, test the appropriate signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
6. If all circuits test normal, test or replace the appropriate 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 with the appropriate door lock in the open position listed below.
* Driver door lock terminal 6 and 8
* Front passenger door lock terminal 1 and 3
* LR door lock terminal 4 and 6
* RR door lock terminal 1 and 3
• If not the specified value, replace the appropriate door lock.
3. Test for less than 2.0 ohms between the signal terminal and the ground terminal with the appropriate door lock in the closed position listed below.
* Driver door lock terminal 6 and 8
* Front passenger door lock terminal 1 and 3
* LR door lock terminal 4 and 6
* RR door lock terminal 1 and 3
• If greater than the specified range, replace the appropriate 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 BCM replacement, setup, and programming