Window Defogger System - How To Proceed With Troubleshooting
If the voltage is below 11 V, recharge or replace the battery before proceeding.
Window Defogger System - System Description
The defogger system's thin heater wires are attached to the inside of the rear window and defog the window surface quickly. The indicator light illuminates while the system is operating. The system automatically turns off after approximately 15 minutes.
Window Defogger System - System Diagram
Lexus IS250 IS220d GSE20 ALE20 WINDSHIELD / WINDOWGLASS
Window Defogger System - Parts Location
Lexus IS250 IS220d GSE20 ALE20 WINDSHIELD / WINDOWGLASS
Window Defogger System - Precaution
Lexus IS250 IS220d GSE20 ALE20 WINDSHIELD / WINDOWGLASS
Windshield Deicer System - Windshield Deicer Does Not Operate
Pressing the windshield deicer switch with the engine switch on (IG) causes the indicator to come on and the system to be activated. After approximately 15 minutes, the system automatically stops and the indicator goes off.
Windshield Deicer System - Problem Symptoms Table
Lexus IS250 IS220d GSE20 ALE20 WINDSHIELD / WINDOWGLASS
Windshield Deicer System - System Description
The defogger system's thin heater wires are attached to the inside of the front window and defog the window surface quickly. The indicator light illuminates while the system is operating. The system automatically turns off after approximately 15 minutes.
Windshield Deicer System - System Diagram
Lexus IS250 IS220d GSE20 ALE20 WINDSHIELD / WINDOWGLASS
Windshield Deicer System - Parts Location
Lexus IS250 IS220d GSE20 ALE20 WINDSHIELD / WINDOWGLASS