Heated Glass Element: Description and Operation

With the Ignition Switch in RUN, voltage is supplied to the Rear Defogger Control. When the Rear Defogger Control Switch is moved to the ON position, the contact closes, which provides voltage to the ON Indicator and the Rear Defogger. The rear window will become warm to remove fog from the surface of the window.
The contact in the Rear Defogger will stay closed until the Rear Defogger Control Switch is turned off or the timer cycle is complete.
The Timer also shuts off anytime the Rear Defogger Control ON-OFF Switch is depressed to OFF.