Reversion Diode

[aaronlwag]

So after replacing the alternator with a new "used" one the problem was still there. I then began looking at removing fuses to see which circuit was energized. I removed fuse 4 and that solved the problem. There appears to be no negative effects as everything appears to be working as it should. Can anyone tell me what fuse 4 does and what I may be missing? Very strange.

[spider2081]

My wire diagram for a 1981 Spider shows fuse 4 is for the right hand headlight high beam. The fuse closest to the steering wheel is fuse 1. Maybe some previous owner modified your wiring.

[aaronlwag]

That is what mine wiring diagram showed as well. Are the lights supposed to work when the car is off? If so, maybe there is a back feed from the lights which would get a constant 12V. The right front headlight still works, weird, huh?

[spider2081]

Do both the high and low beam work???? If they do then I think someone has changed the wiring from its original state. Do you know if you have headlight relays in the car ???