Camaro V8-305 5.0L VIN E (1992)
Heated Glass Element: Description and Operation
CIRCUIT OPERATION
With the Ignition Switch in RUN, voltage is applied to the Defogger Control. When the Defogger Control Switch is pressed ON, voltage is applied to
the Defogger Timer-Relay. The contacts of the relay close, and provide voltage from the PWR ACC Circuit Breaker (hot at all times) to the ON
Indicator and the Defogger. The rear window will become warm to remove condensation from the surface of the window.
The contact in the Defogger Control will stay closed until the Defogger Control Switch is turned off~ or the timer cycle is completed.
The first time the Defogger Control Switch is pushed in, the Timer-Relay will allow the Defogger to operate 10 minutes. Thereafter, each time the
Defogger Control Switch is pushed in, the Timer-Relay will allow the Defogger to operate for a maximum of 5 minutes. The Timer-Relay will reset to 10
minutes when the Ignition Switch is turned OFF and then back to the RUN position or when the Defogger Control is turned off manually.
