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Old 02-10-2001, 09:09 PM
gdaley gdaley is offline
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Join Date: Feb 2001
Location: SE PA
Posts: 63
Educated guess

Not familiar with the specifics of your vehicle but, in general, rear defroster (and other high current) circuits use a relay to minimize the circuitry requiring heavy wire. If yours turns itself off, it almost certainly uses a relay. Sometimes the location can be found in the glovebox manual.
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