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

Table 1. Windshield Deicer System
Symptom	Suspected Area	Link
Window deicer switch is turned on but does not operate (Indicator on)	Air conditioning amplifier assembly	Click here
	Windshield glass (Windshield deicer wire)	-
	Harness or connector	-
Window deicer switch is turned on but does not operate (Indicator off)	Display and navigation module display*1	Click here Click here
	Heater control switch board*2	Click here
	Air conditioning control assembly*2	Click here Click here
	Air conditioning amplifier assembly	Click here
	Windshield glass (Windshield deicer wire)	-
	Harness or connector	-