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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Front Wiper and Washer System
Symptom	Suspected Area	See page
Front wiper and washer systems do not operate at all	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Only front wiper system does not operate	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Front wiper system does not operate (LO, INT)	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Front wiper system does not operate (HI)	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Front wiper system does not stop	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Only front washer system does not operate	Windshield wiper switch assembly	Click here
	Windshield wiper motor assembly	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
Washer fluid does not flow	Washer fluid	-
Washer fluid does not flow	Washer hose and nozzle	-
Front wiper arm does not return to its original position when wiper switch is turned off	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 System
Symptom	Suspected Area	See page
Rear wiper and washer system does not operate	Windshield wiper switch assembly	Click here
	Rear wiper motor assembly	Click here
	Rear washer motor assembly	Click here
	Harness or connector	-
Only rear wiper system does not operate	Windshield wiper switch assembly	Click here
	Rear wiper motor assembly	Click here
	Harness or connector	-
Only rear washer system does not operate	Windshield wiper switch assembly	Click here
	Rear washer motor 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	Front wiper arm installation position	Click here
	Windshield wiper switch assembly	Click here
	Rear wiper motor assembly	Click here
	Harness or connector	-

Auto Wiper System
Symptom	Suspected Area	See page
Auto wiper system does not operate (manual operation is normal)	LIN communication system	Click here
	Windshield wiper switch assembly	Click here
	Rain sensor tape (Make sure there are no air bubbles.)	-
	Rain sensor	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-
When the auto wiper system is on, the rain sensor sensitivity and wiper operation timing could not be adjusted by the auto sensitivity adjustment	Windshield wiper switch assembly	Click here
	Rain sensor tape (Make sure there are no air bubbles.)	-
	Rain sensor	Click here
	Windshield wiper relay assembly	Click here
	Harness or connector	-

Headlight Cleaner System (w/ Headlight Cleaner System)
Symptom	Suspected Area	See page
Headlight cleaner system does not operate when headlight cleaner switch is operated	Headlight cleaner switch assembly	Click here
	Headlight cleaner motor and pump assembly	Click here
	Headlight cleaner control relay (w/ Headlight Auto Leveling)	Click here
	Headlight cleaner control relay (w/o Headlight Auto Leveling)	Click here
	Headlight leveling ECU (w/ Headlight Auto Leveling, for LHD)	Click here
	Headlight leveling ECU (w/ Headlight Auto Leveling, for RHD)	Click here
	Main body ECU (for LHD)	Click here
	Main body ECU (for RHD)	Click here
	Harness or connector	-
Headlight cleaner system does not operate when the front washer switch is first operated* (w/ Headlight Auto Leveling)	Windshield wiper switch assembly	Click here
	Headlight cleaner motor and pump assembly	Click here
	Headlight cleaner control relay	Click here
	Headlight leveling ECU (for LHD)	Click here
	Headlight leveling ECU (for RHD)	Click here
	Main body ECU (for LHD)	Click here
	Main body ECU (for RHD)	Click here
	Harness or connector	-

Tech Tips

*: The headlight cleaner system operates when the front washer switch is first operated with the low beam headlights on after the engine switch is turned to on (IG).

Washer Nozzle Heater System (w/ Washer Nozzle Heater System)
Symptom	Suspected Area	See page
Washer nozzle heater does not operate	Washer nozzle heater circuit	Click here

Other
Symptom	Suspected Area	See page
Washer fluid level warning system does not operate	Washer level warning switch assembly	Click here
Washer fluid level warning system does not operate	Harness or connector	-