Symptom Chart

WARNING: This page is about a different car, the 2002 Ford Ranger. 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 Generic Electronic Module (GEM)	GEM Central Junction Box (CJB) Fuse 26 (10A) Circuitry	GO to MULTIFUNCTION ELECTRONIC CONTROL MODULES .
The Courtesy Lamps Are Inoperative	Fuse(s) Circuitry GEM Battery Saver Relay Interior Lamp Relay	Go To PINPOINT TEST A: THE COURTESY LAMPS ARE INOPERATIVE .
The Courtesy Lamps Do Not Turn On With One Door Open	Circuitry GEM Door Ajar Switch	Go To PINPOINT TEST B: THE COURTESY LAMPS DO NOT TURN ON WITH ONE DOOR OPEN .
The Courtesy Lamps Stay On Continuously	Circuitry GEM Ignition Switch Interior Lamp Relay Dimmer Module Door Ajar Switch	Go To PINPOINT TEST C: THE COURTESY LAMPS STAY ON CONTINUOUSLY .
The Illuminated Entry Is Inoperative When Using The Remote Transmitter	Circuitry GEM Remote Anti-Theft Personality (Central Security Module)	Go To PINPOINT TEST D: THE ILLUMINATED ENTRY IS INOPERATIVE WHEN USING THE REMOTE TRANSMITTER .
The Battery Saver Does Not Deactivate After Timeout	Circuitry Ignition Switch GEM Battery Saver Relay	Go To PINPOINT TEST E: THE BATTERY SAVER DOES NOT DEACTIVATE AFTER TIMEOUT .