Parking, Instrument, and Marker Light Problem
Thread Starter
6th Gear
Joined: Feb 2015
Posts: 6
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From: Elbert CO
Parking, Instrument, and Marker Light Problem
Newby here with my first Corvette and I need help with electrics. I have restored two vehicles before but both older and much simpler. I just acquired a very nice '77 C3 and I'm in the process of "de-bugging" it. Next major issue - no tail, parking, side marker, or instrument lights. I have 12 volts across the tail light fuse, but no voltage across the instrument light fuse, and both fuses are good. Headlights work fine as do the turn signals, brake lights, dome light, courtesy lights, and backup lights. Is there a fuse link or circuit breaker somewhere? Could this be a bad (headlight) light switch?
Le Mans Master
Joined: Aug 2006
Posts: 7,426
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From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
77 schematic:
https://docs.google.com/viewer?a=v&p...TUxMDNiMTY3Nzk
Do you have power to the TAN wire at the headlamp switch?
https://docs.google.com/viewer?a=v&p...TUxMDNiMTY3Nzk
Do you have power to the TAN wire at the headlamp switch?
