XL-7 2WD V6-3.6L (2007)
Door/Trunk Ajar Indicator/Lamp: Testing and Inspection
Door Ajar Indicator Malfunction
Door Ajar Indicator Malfunction
Diagnostic Instructions
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Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure. See: Testing and
Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle Diagnostic Information
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Review [Strategy Based Diagnosis] for an overview of the diagnostic approach. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Strategy Based Diagnosis
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[Diagnostic Procedure Instructions - Vehicle Diagnostic Information] provides an overview of each diagnostic category. See: Testing and
Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure Instructions - Vehicle Diagnostic Information
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).
Diagnostic Aids
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 canceling 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.
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
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If the parameter does not change, refer to Driver Door Ajar Malfunction.
2. With the passenger doors closed, observe the scan tool Passenger Door Ajar Sw. parameter while opening and closing each door. The parameter
should change between Door Closed and Door Ajar.
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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 driver door latch.
2. Test for less than 1 ohm between the ground circuit terminal 6 and ground.
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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.
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If not the specified value, test the signal circuit terminal 4 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 6 and the ground circuit terminal 4. Verify the scan tool Driver Door Ajar Sw
parameter is Door Ajar.
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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 driver door latch.
Passenger Door Ajar Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate door latch.
2. Test for less than 1 ohm between the ground circuit terminal listed below and ground:
