I am beside myself with this one. The lighting for the parking, directional and fog lights, on the right side of the car, was crossed. The parking light blinked instead of the blinker light, the parking light came on as suppose to. The fog light didn't come on at all. All of the lights on the left are working correctly. I took the headdoor apart and checked out the circuits and the bulbs. the bulbs are fine but the circuit was messed up. I got the connections to where they are suppose to be. Everything worked properly except for the fog light. I checked the voltage and got 12+ for the connection. When I connected it to the fog light the voltage went to zero and the fog light did not work. I took the wire for the parking light and tested the fog light, which then worked. I don't understand how I can get 12+ volts from the fog light wire and then connect it and get zero. I have been tearing what little hair I have out trying to figure this out. Thank You.
Rolf
1966 230SL Auto
1992 300D
1991 FLHS