Pinpoint Test U: The Door Ajar Warning Indicator Is Never/Always On

Instrumentation and Warning Chimes

Pinpoint Tests

Pinpoint Test U: The Door Ajar Warning Indicator Is Never/Always On

Normal Operation

The door ajar indicator informs the driver if any of the doors or the hood is not completely closed or ajar. The door ajar information is sent from the Generic Electronic Module (GEM) to the Instrument Cluster (IC) over the communication network.

If the door ajar data is missing for less than 5 seconds, the door ajar warning indicator remains in the last indication mode (on or off), based upon the last known good data message. If the door ajar data is missing for more than 5 seconds, the IC defaults the door ajar warning indicator off.

This pinpoint test is intended to diagnose the following:

- Interior lamps concern
- Wiring, terminals or connectors
- Hood ajar switch
- GEM
- IC



PINPOINT TEST U: THE DOOR AJAR WARNING INDICATOR IS NEVER/ALWAYS ON

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U1 CHECK THE OPERATION OF THE INTERIOR LAMPS


- Open and close each door while monitoring the interior lamps.
- Do the interior lamps operate correctly?

Yes
GO to U2.

No
REFER to Lighting and Horns.

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U2 CARRY OUT THE IC WARNING LAMPS AND CHIME ACTIVE COMMAND USING THE SCAN TOOL


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC door ajar warning lamp (DRAJARLMP) active command. Command the door ajar warning lamp on and off. Observe the door ajar warning indicator.
- Does the door ajar warning indicator illuminate when commanded on, and turn off when commanded off?

Yes
GO to U3.

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Service and Repair. TEST the system for normal operation.

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U3 CHECK THE HOOD AJAR INPUT TO THE GEM


- Enter the following diagnostic mode on the scan tool: GEM DataLogger.
- Select the GEM hood ajar PID (HOOD_SW). Monitor the hood ajar PID with the hood closed and with the hood open.
- Does the hood ajar PID match the hood position?

Yes
INSTALL a new GEM. REFER to Body Control Systems. TEST the system for normal operation.

No
REFER to Antitheft and Alarm Systems to diagnose the alarm does not activate with hood ajar/open.

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