Symptom Chart

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 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)	Circuitry LCM	REFER to MULTIFUNCTION ELECTRONIC MODULES .
The turn signal lamps are inoperative	Fuse Circuitry Multifunction switch LCM	GO to PINPOINT TEST K .
The turn signal lamps are always on	Multifunction switch	INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.
One turn signal lamp is inoperative/always on	Circuitry Multifunction switch	GO to PINPOINT TEST L .
The cornering lamp(s) is/are inoperative	Circuitry Multifunction switch	GO to PINPOINT TEST M .
The cornering lamp(s) is/are always on	Circuitry Multifunction switch	GO to PINPOINT TEST N .
The hazard lamps are inoperative	Fuse Circuitry Multifunction switch	GO to PINPOINT TEST O .
The hazard lamps are always on	Multifunction switch	INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.