Defogger Relay - On-Vehicle Inspection
Measure the resistance of the DEFOG relay.
Windshield Deicer Relay - On-Vehicle Inspection
Measure the resistance of the windshield deicer relay.
Windshield Deicer Switch - Inspection
Disconnect the windshield deicer switch connector.
Window Defogger System - Rear Window Defogger System Does Not Operate
Select the DTC check on the intelligent tester to check for communication errors.
Window Defogger System - Repair
Clean the broken wire tips with a grease, wax and silicone remover.
Window Defogger System - On-Vehicle Inspection
When the engine switch is turned on (IG) and the defogger switch is pressed, check that the rear window defogger operates.
Window Defogger System - Data List / Active Test
Connect the intelligent tester (with CAN VIM) to the DLC3.
Window Defogger System - Diagnosis System
The defogger system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs.
Window Defogger System - Terminals Of Ecu
Measure the voltage and resistance of each terminal of the connectors.
Window Defogger System - Problem Symptoms Table
Lexus IS250 IS220d GSE20 ALE20 WINDSHIELD / WINDOWGLASS