Pinpoint Test AP: The Headlamps On Warning Chime Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AP: 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 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 PARK or HEADLAMP ON position. The SJB (Smart Junction Box) communicates 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 concern

- Headlamp concern

- SJB (Smart Junction Box)

- IC (Instrument Cluster)

PINPOINT TEST AP : THE HEADLAMPS ON WARNING CHIME IS INOPERATIVE

AP1 CHECK THE EXTERIOR LAMPS OPERATION

- Ignition OFF.

- Place the headlamp switch in the PARK or HEADLAMP ON position.

Do the headlamps or parking lamps operate?

Yes
GO to AP2.

No
REFER to Lighting and Horns.

AP2 CHECK THE DOOR AJAR RECONFIGURABLE INDICATOR OPERATION

- Ignition ON.

- Open then close the LH front door while observing the door ajar message center indicator in the IC (Instrument Cluster) message center or the integrated display.

Does the door ajar message center indicator operate correctly?

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

If the concern remains, REINSTALL the original SJB (Smart Junction Box) and INSTALL a new IC (Instrument Cluster). REFER to Instrument Cluster (IC) . TEST the system for normal operation.

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