OK. When no exterior lights are turned on the brakes and turns signals work fine in the rear. However when I engage the parking lights (running lights) everything in the rear stops working (to include license plate lights). I looked to see if it was the fuse but all the fuses are good. The Hazards work with the lights on so I know it is not a bulb or circuit board issue either. I removed the trailer wiring harness from the circuit as well to ensure it was not the culprit.
Please help. I want to test the wiring harning that comes down the left frame rail but I am unsure of the color scheme and hwo to test with a multimeter (wiring looks like black, white, light blue and green).
Saturday, April 21st, 2012 AT 3:10 AM