WINDOW DEFOGGER 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.
Inspect the fuses related to this system before inspecting the suspected areas below.

Window Defogger System
Symptom	Suspected Area	See page
Rear Window Defogger System does not Operate.	DEF relay	Click here
	Air conditioning system	Click here
	Wire harness or connector	Click here
	Air conditioning control assembly	Click here
	Air conditioning amplifier assembly	Click here
	Back door glass (rear window defogger wire)	Click here
	Radio setting condenser	Click here