Symptom Chart

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
No communication with the lighting control module (LCM)	Wiring, terminals or connectors LCM	REFER to MODULE COMMUNICATIONS NETWORK article.
The autolamps are inoperative	Wiring, terminals or connectors Light sensor LCM	Go to Pinpoint Test F .
The autolamps are on continuously	Wiring, terminals or connectors Light sensor Headlamp switch Windshield wiper motor LCM	Go to Pinpoint Test G .
The autolamp time delay is inoperative	LCM	INSTALL a new LCM. REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation.