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 (w/o Auto Wiper System)
Symptom	Suspected Area	See page
Front wipers do not operate at all	Wiper ECU power source circuit	Click here
	Front wiper motor circuit	Click here
	Windshield wiper switch assembly	Click here
Front wipers do not operate in LO	Front wiper motor circuit	Click here
Front wipers do not operate in LO	Windshield wiper switch assembly	Click here
Front wipers do not operate in HI	Front wiper motor circuit	Click here
Front wipers do not operate in HI	Windshield wiper switch assembly	Click here
Front wipers do not operate in INT	Front wiper motor circuit	Click here
Front wipers do not operate in INT	Windshield wiper switch assembly	Click here
Front washer motor does not operate	Washer motor circuit	Click here
Front washer motor does not operate	Windshield wiper switch assembly	Click here
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
	Windshield wiper switch assembly	Click here
When the front wiper switch is off, the wiper blades do not park or park in the wrong position	Front wiper arm installation position	Click here
	Windshield wiper motor assembly	Click here

Front Wiper and Washer (w/ Auto Wiper System)
Symptom	Suspected Area	See page
Front wipers do not operate at all	Wiper ECU power source circuit	Click here
	Front wiper motor circuit	Click here
	Windshield wiper switch assembly	Click here
Front wipers do not operate in AUTO	Rain sensor tape*1	-
	Rain sensor circuit	Click here
	Speed signal circuit	Click here
	Front wiper motor circuit	Click here
	Windshield wiper switch assembly	Click here
Front wipers do not operate in LO	Front wiper motor circuit	Click here
Front wipers do not operate in LO	Windshield wiper switch assembly	Click here
Front wipers do not operate in HI	Front wiper motor circuit	Click here
Front wipers do not operate in HI	Windshield wiper switch assembly	Click here
Front washer motor does not operate	Washer motor circuit	Click here
Front washer motor does not operate	Windshield wiper switch assembly	Click here
Washer fluid does not flow	Washer hose and nozzle	-
Front wipers do not operate when front washer switch is on	Front wiper motor circuit	Click here
Front wipers do not operate when front washer switch is on	Windshield wiper switch assembly	Click here
When the front wiper switch is off, the wiper blades do not park or park in the wrong position	Front wiper arm installation position	Click here
	Windshield wiper motor assembly	Click here

Rear Wiper and Washer
Symptom	Suspected Area	See page
Rear wiper does not operate	RR WIP fuse	-
	Rear wiper motor and bracket assembly	Click here
	Windshield wiper switch assembly	Click here
	Harness or connector	-
Rear washer motor does not operate	RR WASH fuse	-
	Rear washer motor assembly	Click here
	Windshield wiper switch assembly	Click here
	Harness or connector	-
Washer fluid does not flow	Washer hose and nozzle	-
When the rear wiper switch is off, the wiper blade does not park or parks in the wrong position	Rear wiper arm installation position	Click here
	Rear wiper motor assembly	Click here

Headlight Cleaner System
Symptom	Suspected Area	See page
Headlight cleaner system does not operate when the headlight cleaner switch is operated	IG power source circuit	Click here
	Headlight cleaner switch circuit	Click here
	Headlight signal circuit	Click here
	Headlight cleaner motor and relay circuit	Click here
	Headlight cleaner control relay	Click here
	Main body ECU (Multiplex network body ECU)	Click here
Headlight cleaner system does not operate when the front washer switch is operated*2	IG power source circuit	Click here
	Headlight signal circuit	Click here
	Washer signal circuit	Click here
	Headlight cleaner motor and relay circuit	Click here
	Headlight cleaner control relay	Click here
	Main body ECU (Multiplex network body ECU)	Click here

Washer Fluid Level Warning System
Symptom	Suspected Area	See page
Washer fluid level warning system does not operate	Washer fluid level warning switch circuit	Click here
Washer fluid level warning system does not operate	Combination meter assembly	Click here

Tech Tips

*1: Before inspecting the rain sensor, first check if the rain sensor tape is correctly installed.
*2: The headlight cleaner system operates when the front washer switch is first operated with the low beam headlights on.