Symptom Chart - Wipers and Washers

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART - WIPERS AND WASHERS

Condition	Possible Sources	Action
The wipers are inoperative - windshield	Fuse(s) Multifunction switch Circuitry Windshield wiper motor	GO to PINPOINT TEST A .
The wipers are inoperative - rear window	Fuse(s) Multifunction switch Circuitry Rear window wiper motor	GO to PINPOINT TEST B .
The wipers stay on continuously - windshield	Windshield wiper motor Multifunction switch Circuitry	GO to PINPOINT TEST C .
The wipers only operate in the high-speed position - windshield	Circuitry Windshield wiper motor	CHECK windshield wiper motor C125-3, circuit GD123 (BK/GY) for an open. If not OK, REPAIR the circuit. TEST the system for normal operation. If OK, INSTALL a new windshield wiper motor. REFER to WIPER MOTOR - WINDSHIELD .
The wipers stay on continuously - rear window	Rear window wiper motor Multifunction switch Circuitry	GO to PINPOINT TEST D .
The high/low wiper speeds do not operate correctly - windshield	Multifunction switch Circuitry Windshield wiper motor	GO to PINPOINT TEST E .
The intermittent wiper speed does not operate correctly - rear window	Multifunction switch Circuitry Rear window wiper motor	GO to PINPOINT TEST F .
The intermittent wiper speed does not operate correctly - windshield	Multifunction switch Circuitry Windshield wiper motor	GO to PINPOINT TEST G .
The wash and wipe function is inoperative - windshield	Windshield wiper motor	If the washer pump is inoperative, GO to PINPOINT TEST H .
The wash and wipe function is inoperative - windshield	Multifunction switch Circuitry Washer pump Blocked washer hose	If the washer pump is operative, INSTALL a new windshield wiper motor. TEST the system for normal operation.
The wash and wipe function is inoperative - rear window	Multifunction switch	If the washer pump is inoperative, GO to PINPOINT TEST H .
The wash and wipe function is inoperative - rear window	Circuitry Washer pump Rear window wiper motor Blocked washer hose	If the washer pump is operative, INSTALL a new rear wiper motor. TEST the system for normal operation.
The washer pump is inoperative	Circuitry Windshield washer pump Multifunction switch Windshield wiper motor Rear window wiper motor Blocked washer hose	GO to PINPOINT TEST H .
The wipers will not park at the correct position - windshield	Linkage Windshield wiper motor	If the wipers immediately stop on the windshield as soon as they are turned off, INSTALL a new windshield wiper motor.
	Pivot arm adjustment	ADJUST pivot arm, REFER to WIPER BLADE AND PIVOT ARM ADJUSTMENT - WINDSHIELD .
The wipers will not park at the correct position - rear window	Pivot arm adjustment	ADJUST pivot arm, REFER to WIPER BLADE AND PIVOT ARM ADJUSTMENT - REAR .
The headlamps do not illuminate when the wipers are on	Circuitry Windshield wiper motor Smart Junction Box (SJB)	GO to PINPOINT TEST I .