Symptom Chart

WARNING: This page is about a different car, the 2003 Lincoln Town Car. 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 module - unable to carry out on-demand self-test on the lighting control module (LCM)	Lighting control module (LCM). Fuse. Circuitry.	REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES .
No communication with the module - restraint control module (RCM)	Restraint control module (RCM). Fuse Circuitry	REFER to AIR BAG RESTRAINT SYSTEMS .
The safety belt warning chime does not operate correctly	LF safety belt switch. Lighting control module (LCM). Circuitry.	REFER to AIR BAG RESTRAINT SYSTEMS .
The belt minder feature does not operate correctly	LF safety belt switch. RF safety belt switch. Lighting control module (LCM). Circuitry.	INSTALL a new LCM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . TEST the system for normal operation.
The key-in-ignition chime does not operate correctly	Lighting control module (LCM). Key warning switch. Driver door module (DDM). Driver door ajar switch. Circuitry.	GO to PINPOINT TEST A .
The door ajar chime does not operate correctly	Lighting control module (LCM). Driver door ajar switch. Passenger door ajar switches. Key warning switch. Circuitry. Driver door module (DDM).	GO to PINPOINT TEST B .
All the chimes/buzzers are inoperative	Lighting control module (LCM).	INSTALL a new LCM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . TEST the system for normal operation.
The headlamp on reminder chime does not operate correctly	Lighting control module (LCM). Door ajar switches. Circuitry.	GO to PINPOINT TEST C .
The chime sounds when the driver door is ajar (no key in ignition and headlamps OFF)	Lighting control module (LCM). Key warning switch. Circuitry.	GO to PINPOINT TEST D .
A chime does not operate correctly - air bag warning chime	Lighting control module (LCM). Circuitry. Restraint control module (RCM).	REFER to AIR BAG RESTRAINT SYSTEMS .
A chime does not operate correctly - decklid ajar tone	Lighting control module (LCM). Circuitry.	GO to PINPOINT TEST E .
A chime does not operate correctly - message center warning and/or switch depression tones	Lighting control module (LCM). Circuitry. Hybrid electronic cluster (HEC).	INSTALL a new LCM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . TEST the system for normal operation. If the problem is still present, INSTALL a new HEC. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
A chime does not operate correctly-turn signal warning tone	Circuitry. Lighting control module (LCM). Antilock brake (ABS) Module.	GO to PINPOINT TEST F .