1973 Firebird Rear Defroster Wiring Diagram

11+ 1973 Firebird Rear Defroster Wiring Diagram
Images. The thick orange wire that comes out of the defroster relay is the main power feed wire which connects to a batt 12v+ source. For this you'll need a schematic diagram, or considerable experience in troubleshooting wiring problems.

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My rear defroster will not come on. The pontiac firebird is an american automobile that was built and produced by pontiac from the 1967 to 2002 model years. Merged version with rear window defroster and ambulance fans original factory diagrams:

According to this wiring diagram, the switches are contacts on the slider (i believe).

I have read some previous threads that mention two different rear hatch glass defroster grids, one being a. Edc, electronically controlled fuel injection. Usa 1973 manual transmission caution: If they are open, there is no rear window heat but the mirrors should heat.