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
The wipers are inoperative	Central junction box (CJB) fuse: 16 (30A) Circuitry. GEM. Multifunction switch. Wiper run/park relay. Wiper HI/LO relay. Wiper motor.	GO to PINPOINT TEST A .
The wipers stay on continuously	Circuitry. GEM. Multifunction switch. Wiper run/park relay. Wiper HI/LO relay. Wiper motor.	GO to PINPOINT TEST B .
The high/low wiper speeds do not operate properly	Circuitry. GEM. Multifunction switch. Wiper HI/LO relay. Wiper motor.	GO to PINPOINT TEST C .
The intermittent wiper mode does not operate correctly	Circuitry. GEM. Multifunction switch. Wiper motor.	GO to PINPOINT TEST D .
The washer pump is inoperative	Circuitry. GEM. Multifunction switch. Washer pump relay. Washer pump.	GO to PINPOINT TEST E .
The speed dependent interval mode does not operate correctly	Circuitry. GEM. 4WABS control module (if equipped). Rear anti-lock brake sensor (if RABS equipped). Module configuration.	GO to PINPOINT TEST F . REFER to the diagnostic tool help screen on the configuration card to verify correct tire size and axle ratio.
The low wiper speed does not operate correctly	Circuitry. Multifunction switch. Wiper HI/LO relay. Wiper motor. GEM.	GO to PINPOINT TEST G .
No communication with the module - generic electronic module (GEM)	Fuse(s): CJB 10 (7.5A) CJB 26 (10A) Circuitry. GEM.	GO to MULTIFUNCTION ELECTRONIC CONTROL MODULES .