Pinpoint Test AO: The Headlamps On Warning Chime Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AO: The Headlamps On Warning Chime Is Inoperative

Normal Operation

The Smart Junction Box (SJB) receives the headlamp switch status from the headlamp switch and the LH front door ajar status from the LH front door ajar switch through hardwired circuitry. The headlamps on warning chime sounds when the LH front door is opened with the ignition switch in the OFF position, the key is not in the ignition lock cylinder, and the headlamp switch is in the PARKING LAMPS or HEADLAMP ON position. The SJB (Smart Junction Box) communicates the headlamp on chime request to the Instrument Cluster (IC) when the headlamps or parking lamps are on and the driver door is opened. The autolamps feature must not be selected for the headlamps on warning chime to operate.

This pinpoint test is intended to diagnose the following:

- Door ajar indication

- SJB (Smart Junction Box)

- IC (Instrument Cluster)

PINPOINT TEST AO : THE HEADLAMPS ON WARNING CHIME IS INOPERATIVE

AO1 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 for 6 seconds.

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

Yes
GO to AO2.

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

AO2 CHECK THE EXTERIOR LAMPS OPERATION

- Ignition OFF.

- Place the headlamp switch in the PARKING LAMPS or HEADLAMP ON position.

Do the headlamps or parking lamps operate?

Yes
GO to AO3.

No
REFER to Lighting and Horns.

AO3 CHECK THE DOOR AJAR WARNING INDICATOR OPERATION

- Ignition ON.

- Open then close the LH front door while observing the door ajar warning indicator.

Does the door ajar warning indicator operate correctly?

Yes
INSTALL a new SJB (Smart Junction Box). TEST the system for normal operation.

No
GO to Pinpoint Test N Pinpoint Test N: The Door Ajar Warning Indicator Is Never/Always On.