Heated Glass Element: Description and Operation
CIRCUIT DESCRIPTIONBattery voltage is supplied to the defogger relay coils and contacts at all times from fuse 9 and battery voltage is also supplied from the generator to the ETACM when the engine is running. The rear defogger switch on (depressing) signal is provided to the ETACM and then ETACM provide ground to the defogger relay coil.
Fuse 9 supply battery voltage to the rear window defogger and Left/Right power outside mirror defogger through defogger relay contacts. The ETACM will turn the rear defogger off after approximately 20 minutes. Depressing the rear defogger switch when the rear defogger is on causes the ETACM to turn the rear defogger off.