WIPER AND WASHER SYSTEM 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
Symptom	Suspected Area	Link
Front wipers do not operate at all	ECU-IG1 NO. 4 fuse	-
	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	No. 1 integration relay	Click here
	Harness or connector	-
Front wipers do not operate in AUTO	Rain sensor tape	-
	Rain sensor	Click here
	Windshield wiper switch assembly	Click here
	Windshield wiper relay assembly	Click here
	Windshield wiper motor assembly	Click here
	Harness or connector	-
When the front wiper switch is in AUTO, the rain sensor sensitivity cannot be adjusted by the controlling sensitivity setting switch.	Windshield glass (Rain sensor sensing portion) is dirty	-
	Windshield wiper switch assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Front wipers do not operate in MIST	Windshield wiper switch assembly	Click here
Front wipers do not operate in MIST	Harness or connector	-
Front wipers do not operate in LO	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Front wipers do not operate in HI	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Front washer motor does not operate	WASHER 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	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
When the front wiper switch is off, the wiper blades do not stop (park) or stop (park) in the wrong position	Front wiper arm installation position	Click here
	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-

Rear Wiper and Washer (w/ Rear Wiper)
Symptom	Suspected Area	Link
Rear wiper does not operate at all	WIPER RR fuse	-
	Windshield wiper switch assembly	Click here
	Rear wiper motor assembly	Click here
	Harness or connector	-
Rear wiper does not operate in INT	Windshield wiper switch assembly	Click here
	Rear wiper motor assembly	Click here
	Harness or connector	-
Rear wiper does not operate in ON	Windshield wiper switch assembly	Click here
	Rear wiper motor assembly	Click here
	Harness or connector	-
Rear washer motor does not operate	WASHER 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	-
When the rear wiper switch is off, the wiper blade does not stop (park) or stops (parks) in the wrong position	Rear wiper arm installation position	Click here
	Windshield wiper switch assembly	Click here
	Rear wiper motor assembly	Click here
	Harness or connector	-

Headlight Cleaner System (w/ Headlight Cleaner System)
Symptom	Suspected Area	Link
Headlight cleaner system does not operate	Lighting system*1	Click here
	Check headlight cleaner washer nozzle cover	-
	Check headlight cleaner hose	-
	Proceed to "Headlight Cleaner Motor and Relay Circuit"	Click here

Washer Fluid Level Warning System (w/ Washer Fluid Warning System)
Symptom	Suspected Area	Link
Washer fluid level warning message on the multi-information display does not operate	Level warning switch assembly	Click here
	Meter and gauge system	Click here
	Harness or connector	-

*1: for LED Headlight