HEATED WINDSHIELD DEFROSTER SYSTEM PROBLEM SYMPTOMS TABLE

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. Windshield Deicer System
Symptom	Suspected Area	Link
Heated windshield defroster system does not operate	HWD NO.1 fuse	-
	ECU-IG NO.3 fuse	-
	HTR-IG fuse	-
	Air conditioning system	Click here
	LIN communication system	Click here
	Perform Active Test	Click here
	HWD NO.1 relay	Click here
	Front window deicer switch	Click here
	Air conditioning control assembly	Click here
	Air conditioning amplifier assembly	Click here
	Windshield glass (heated windshield defroster)	-
	Harness or connector	-
One of heated windshield defrosters does not operate	HWD NO.2 fuse	-
	HWD NO.2 relay	Click here
	Harness or connector	-
	Windshield glass (heated windshield defroster)	-