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HoosierDaddy · 10-05-2009, 01:02 AM

Trying to get my front heat defrost working.I have 12V at the dash board control panel but the blower motors wont run. I found two Blue/White stripe wires in the center stack. I think they went to the switch labeled "aux defrost??"( Not sure ,,that area of the stack was bashed up by the vandals) If I jump 12V to one of those wires one of the blower motors runs. I get air out of 4 of the vents at the center windshield. Is there a "heater core" to bring engine heat to the defrost? A wiring schematic would help but I have not been able to find one.

10-05-2009, 01:02 AM	#1
HoosierDaddy Senior Member Join Date: Mar 2006 Location: Indiana Posts: 424	Defroster Q's Trying to get my front heat defrost working.I have 12V at the dash board control panel but the blower motors wont run. I found two Blue/White stripe wires in the center stack. I think they went to the switch labeled "aux defrost??"( Not sure ,,that area of the stack was bashed up by the vandals) If I jump 12V to one of those wires one of the blower motors runs. I get air out of 4 of the vents at the center windshield. Is there a "heater core" to bring engine heat to the defrost? A wiring schematic would help but I have not been able to find one. __________________ 1993 Newell 45'#316, 1976 Trans Am 455, 1967 GTO, 1953 Chevrolet 3105 (panel truck),1952 Chevrolet 3600,1969 Airstream Overlander. Always fixing something!