FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Mercury
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1994
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Grand Marquis V8-281 4.6L SOHC
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Windows and Glass
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Heated Glass Control Module
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Description and Operation
Heated Glass Control Module: Description and Operation
PURPOSE
The Rear Window Defrost Control is a momentary contact, solid state, time delay switch that sends current to the rear window defrost grid.