WIPER AND WASHER SYSTEM

Note:

If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.

Click here

Tip:

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.

Table 1. Front Wiper and Washer
Symptom	Suspected Area	Link
Front wipers do not operate at all	Proceed to "Wiper and Washer Switch Circuit"	Click here
Front wipers do not operate at all	Windshield wiper motor assembly	Click here
Front wipers do not operate in AUTO	Check that the driver side and passenger side doors are closed	-
	Rain sensor tape (Check for air bubbles)	-
	Proceed to "Wiper and Washer Switch Circuit"	Click here
	Rain sensor	Click here
Front wipers do not operate in LO	Proceed to "Wiper and Washer Switch Circuit"	Click here
Front wipers do not operate in HI	Proceed to "Wiper and Washer Switch Circuit"	Click here
Front wipers do not operate in MIST	Proceed to "Wiper and Washer Switch Circuit"	Click here
When the front wipers are operating in AUTO, the rain sensor sensitivity cannot be adjusted by the windshield wiper switch assembly (adjustment switch) (wiping interval does not change)	Proceed to "Wiper and Washer Switch Circuit"	Click here
	Windshield wiper motor assembly	Click here
When the front wipers operate in AUTO, the wiper interval does not change according to changes in the vehicle speed	Rain sensor	Click here
	Windshield wiper motor assembly	Click here
Front wipers do not operate in INT*	Windshield wiper motor assembly	Click here
When the front wipers are operating in INT, the front wiper intermittent operation interval cannot be adjusted by the windshield wiper switch assembly (adjustment switch) (wiping interval does not change)*	Proceed to "Wiper and Washer Switch Circuit"	Click here
	Windshield wiper motor assembly	Click here
When the front wipers are operating in INT, the front wiper intermittent operation interval does not change according to changes in the vehicle speed*	Windshield wiper motor assembly	Click here
Front wipers continuously operate in AUTO	Proceed to "Wiper and Washer Switch Circuit"	Click here
Front wipers continuously operate in LO	Proceed to "Wiper and Washer Switch Circuit"	Click here
Front wipers continuously operate in HI	Proceed to "Wiper and Washer Switch Circuit"	Click here
Front wipers continuously operate in INT*	Windshield wiper motor assembly	Click here
When the front wipers are operating in AUTO, the front wipers do not stop operating when the driver door or front passenger door is opened	Proceed to "Door Courtesy Switch Circuit"	Click here
	Main body ECU (Multiplex network body ECU)	Click here
	Windshield wiper motor assembly	Click here
"Wiper System Malfunction Visit Your Dealer" is displayed on the multi-information display	Windshield wiper motor assembly	Click here
	Main body ECU (Multiplex network body ECU)	Click here
Front wipers do not move to the service position (wiper operation is normal)	Main body ECU (Multiplex network body ECU)	Click here
When the setting of the customize setting "Auto Wiper" is changed, the operation of the wiper system does not change.	Rain sensor	Click here
Washer motor and pump assembly does not operate	Proceed to "Washer Motor Circuit"	Click here
Washer motor and pump assembly does not operate	Proceed to "Wiper and Washer Switch Circuit"	Click here
Washer fluid does not flow (Washer motor and pump assembly is normal)	Washer fluid	-
	Washer hose and nozzle	-
Front wipers do not operate when the windshield wiper switch assembly (washer switch) is on	Windshield wiper motor assembly	Click here
When the front wiper switch is turned off, the front wipers do not move to the park position or stop in the wrong position	Check the automatic stop (park) position	Click here
	Main body ECU (Multiplex network body ECU)	Click here
The wiper(s) may not operate	Check history of reason for operation	Click here

*: When the customize setting "Auto Wiper" is set to "Not Avl".

Table 2. Headlight Cleaner System
Symptom	Suspected Area	Link
Headlight cleaner system does not operate	Proceed to "Headlight Cleaner Motor and Relay Circuit"	Click here

Table 3. Washer Fluid Level Warning System
Symptom	Suspected Area	Link
Washer fluid level warning message on the multi-information display does not operate	Washer fluid	-
	Proceed to "Washer Fluid Level Warning Switch Circuit"	Click here

WIPER AND WASHER SYSTEM PROBLEM SYMPTOMS TABLE