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)	Fuse Circuitry LCM	REFER to MULTIFUNCTION ELECTRONIC MODULES .
Unable to enter self-test	Lighting control module (LCM)	REFER to MULTIFUNCTION ELECTRONIC MODULES .
The ignition switch is inoperative	Ignition switch Circuitry	GO to PINPOINT TEST A .
No power in RUN/ACC position	Ignition switch Circuitry	GO to PINPOINT TEST B .
No power in RUN/START position	Ignition switch Circuitry	GO to PINPOINT TEST C .
The multi-function switch does not operate correctly	Multi-function switch	Refer to COMPONENT TESTING .
The multi-function switch does not operate correctly	Circuitry	GO to PINPOINT TEST D .
The ignition key is hard to turn	Ignition key Ignition lock cylinder Ignition switch	GO to PINPOINT TEST E .