Symptom Chart - Wipers and Washers

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. 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 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 - windshield	Circuitry Multifunction switch Windshield wiper motor	GO to PINPOINT TEST F .
The intermittent wiper speed does not operate correctly - rear window	Multifunction switch Circuitry Rear window wiper motor	GO to PINPOINT TEST G .
The wash and wipe function is inoperative - windshield	Washer pump Windshield wiper motor	If the washer pump is inoperative, GO to PINPOINT TEST H . 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	Washer pump Multifunction switch	If the washer pump is inoperative, GO to PINPOINT TEST H .
The wash and wipe function is inoperative - rear window	Rear window wiper motor	If the washer pump is operative, INSTALL a new rear wiper motor. TEST the system for normal operation.
The washer pump is inoperative	Circuitry Washer pump motor Multifunction switch Windshield wiper motor Rear window wiper motor Blocked washer hose	GO to PINPOINT TEST H .
The washer pump activates for 10 seconds whenever the ignition is turned on - front	Circuitry	CARRY OUT the Multifunction Switch Component Test. Refer to COMPONENT TESTING for component testing.
	Multifunction switch	CHECK circuit CRW17 (GY/BN) for a short to ground.
	Windshield wiper motor	INSTALL a new windshield wiper motor. REFER to WIPER MOTOR - WINDSHIELD .
The washer pump activates for 10 seconds whenever the ignition is turned on - rear	Circuitry	CARRY OUT the Multifunction Switch Component Test. Refer to COMPONENT TESTING for component testing.
	Multifunction switch	CHECK circuit CRW20 (GY/YE) for a short to ground.
	Rear wiper motor	INSTALL a new rear wiper motor. REFER to WIPER MOTOR - REAR WINDOW .
The speed dependent interval mode does not operate correctly	Circuitry Windshield wiper motor PCM	GO to PINPOINT TEST I .
The wipers will not park at the correct position	Damaged wiper mounting arm and pivot shaft	REPLACE the wiper mounting arm and pivot shaft. REFER to WIPER MOUNTING ARM AND PIVOT SHAFT .
	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 WINDOW .
The headlamps do not illuminate when the wipers are on	Circuitry Windshield wiper motor Smart Junction Box (SJB)	GO to PINPOINT TEST J .
Washer fluid level concerns	Wiring, terminals or connectors Washer fluid level switch Instrument Cluster (IC)	GO to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .