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Heated Glass Element: Description and Operation

Circuit Description

The ETACM (Electric Time and Alarm Control Module) controls the operation of the rear window defogger and outside mirror defogger through defogger relay coil control.

When the defogger switch in the NC control module is depressed (ON), the defogger relay coil is energized through the ETACM. Battery voltage is supplied to the rear window defogger and the outside mirror defogger through the closed defogger relay contact.