WIPER AND WASHER SYSTEM(w/ Rain Sensor) PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Front Wiper and Washer System
Symptom	Suspected Area	Link
Front wiper does not operate	WIP FR fuse	-
	Power source circuit	Click here
	Front wiper motor circuit	Click here
	Wiper and washer switch circuit	Click here
	Windshield wiper relay assembly	Click here
Front wipers do not operate in AUTO	Rain sensor tape	-
	Rain sensor circuit	Click here
	Power source circuit	Click here
	Speed signal circuit	Click here
	Front wiper motor circuit	Click here
	Wiper and washer switch circuit	Click here
	Windshield wiper relay assembly	Click here
When the front wiper switch is in AUTO, the rain sensor sensitivity cannot be adjusted by the windshield wiper switch adjusting ring	Windshield glass (Rain sensor sensing portion) is dirty	-
	Windshield wiper switch assembly	Click here
	Harness or connector	-
	Windshield wiper relay assembly	Click here
Front wipers do not operate in LO or HI	Front wiper motor circuit	Click here
	Wiper and washer switch circuit	Click here
	Harness or connector	-
	Windshield wiper relay assembly	Click here
Only front washer does not operate	WSH fuse	-
	Windshield washer motor and pump assembly	Click here
	Windshield wiper switch assembly	Click here
	Harness or connector	-
Washer fluid does not flow	Washer fluid	-
Washer fluid does not flow	Washer hose and nozzle	-
Front wipers do not operate when the front washer switch is on	Front wiper motor circuit	Click here
	Wiper and washer switch circuit	Click here
	Windshield wiper relay assembly	Click here
Front wiper arms do not return to their original positions when wiper switch is turned off	Front wiper arm installation position	Click here
	Windshield wiper motor assembly	Click here

Rear Wiper and Washer System
Symptom	Suspected Area	Link
Rear wiper does not operate	WIP RR fuse	-
	Rear wiper motor assembly	Click here
	Windshield wiper switch assembly	Click here
	Harness or connector	-
Rear wiper does not operate in ON or INT	Rear wiper motor assembly	Click here
	Windshield wiper switch assembly	Click here
	Harness or connector	-
Only rear washer does not operate	WSH fuse	-
	Windshield washer motor and pump assembly	Click here
	Windshield wiper switch assembly	Click here
	Harness or connector	-
Washer fluid does not flow	Washer fluid	-
Washer fluid does not flow	Washer hose and nozzle	-
Rear wiper arm does not return to its original position when wiper switch is turned off	Rear wiper arm installation position	Click here
	Rear wiper motor assembly	Click here

Headlight Cleaner System (w/ Headlight Cleaner System)
Symptom	Suspected Area	Link
Headlight cleaner system does not operate when the front washer switch is operated	H-LP CLN fuse	-
	Power source circuit	Click here
	Washer signal circuit	Click here
	Headlight signal circuit	Click here
	Headlight cleaner motor and relay circuit	Click here
	Headlight cleaner control relay	Click here