Registered
Join Date: Jul 2001
Location: Woodbine, Maryland USA
Posts: 251
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Greg
On cars of your vintage, often the defroster wires on the glass deteriorate to the point where breaks develop. Check for 12 volts at the spade connector on the rear glass. If you have power there, you've got breaks in the defroster wires. If you don't have power there, work from the switch back checking for voltage. There is a two-stage relay in the engine compartment of my car (72). Yours may be there too. This could also be the culprit.
Good luck.
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John
1972 911T Coupe
PCA- Potomac Region
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