Symptom Chart

WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
No communication with generic electronic module (GEM)	GEM. Circuitry.	REFER to MULTIFUNCTION ELECTRONIC MODULE .
All door locks are inoperative from one switch	Circuitry. Central junction box (CJB) fuse 222 (20A). Door lock control switches. CJB. Generic electronic module (GEM).	Go To PINPOINT TEST A .
A single door lock is inoperative-passenger	Circuitry. Door lock actuators.	Go To PINPOINT TEST B .
A single door lock is inoperative - driver	Circuitry. Door lock actuator. Central junction box (CJB). Generic electronic module (GEM).	Go To PINPOINT TEST C .
The luggage compartment lid is inoperative - from release switch	Luggage compartment release switch. Circuitry. Luggage compartment lock actuator. Luggage compartment release relay. Generic electronic module (GEM).	Go To PINPOINT TEST D .
The doors do not lock or unlock using the remote transmitter	Remote transmitter. Remote transmitter battery. Remote transmitter programming. Aftermarket system. High power devices. TV/radio transmission towers. Generic electronic module (GEM).	Go To PINPOINT TEST E .
The luggage compartment lid is inoperative using the remote transmitter	Remote transmitter. Generic electronic module (GEM). Circuitry.	Go To PINPOINT TEST F .
The doors do not lock or unlock using the keyless entry keypad	Keyless entry keypad. Circuitry. Generic electronic module (GEM).	Go To PINPOINT TEST G .
Panic feature is inoperative/does not operate correctly	Remote transmitter. Generic electronic module (GEM).	Go To PINPOINT TEST H .