Pinpoint Test AJ: The Headlamps On Warning Chime Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AJ: The Headlamps On Warning Chime Is Inoperative

Normal Operation

The Body Control Module (BCM) uses hardwired circuitry to receive the headlamp switch status from the headlamp switch and the LH front door ajar status from the LH front door ajar switch. The headlamps on warning chime sounds when the LH front door is opened with the ignition in the OFF state, the key is not in the ignition lock cylinder (without IA (Intelligent Access)), and the headlamp switch in the PARK or HEADLAMP ON position. The BCM (Body Control Module) communicates the headlamp on chime request to the Instrument Panel Cluster (IPC) based on headlamp or parking lamp and driver door inputs.

This pinpoint test is intended to diagnose the following:

- Door ajar indication

- BCM (Body Control Module)

- IPC (Instrument Panel Cluster)

PINPOINT TEST AJ : THE HEADLAMPS ON WARNING CHIME IS INOPERATIVE

AJ1 CHECK THE SAFETY BELT WARNING CHIME OPERATION

- Ignition OFF.

- Ignition ON.

- Monitor the safety belt warning chime when the ignition switch is transitioned from OFF to RUN.

Does the safety belt warning chime operate for approximately 6 seconds?

Yes
GO to AJ2.

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

AJ2 CHECK THE INTERIOR LAMPS OPERATION

- On vehicles without IA (Intelligent Access), remove the key from the ignition lock cylinder.

- On vehicles with IA (Intelligent Access), place the ignition in the OFF state.

- Open and close the driver door.

- Observe the interior lamps.

Do the interior lamps operate correctly from the driver door?

Yes
GO to AJ3.

No
REFER to Lighting and Horns.

AJ3 RETRIEVE THE RECORDED DTCs FROM THE IPC (Instrument Panel Cluster) SELF-TEST

- Check for recorded IPC (Instrument Panel Cluster) DTCs from the self-test.

Are any DTCs recorded?

Yes
For DTC U0140:00, GO to Pinpoint Test AQ Pinpoint Test AQ: DTC U0140:00.

For all other DTCs, REFER to DTC Chart Instrumentation, Message Center and Warning Chimes.

No
GO to AJ4.

AJ4 RETRIEVE THE RECORDED DTCs FROM THE BCM (Body Control Module) SELF-TEST

- Check for recorded BCM (Body Control Module) DTCs from the self-test.

Are any DTCs recorded?

Yes
REFER to Body Control Systems for correct navigation of the DTC.

No
INSTALL a new BCM (Body Control Module). TEST the system for normal operation.