Trailer Wiring Issue
I have running lights, brake lights, right and left turn signals working. Only problem I have is when I have the running lights on, only the left turn signal does not work. Turn the running lights off...
Forum Discussion
Nope, bad ground on that bulb. What you think is the left turn signal working is actually the running light filament. The power comes to the positive side of the turn/brake light, but the ground is not there, so it exits out the running light filament.
You can prove this by looking at the actual lightbulb with the red lens cover off. The heavy filaments are the brake/turn, and the thinner filament is the running light.
Clean up the ground by using emery on the sides of the bulb socket and the bulb itself, and see if this helps. Sometimes it is actually the connection to the socket itself.
You can prove this by looking at the actual lightbulb with the red lens cover off. The heavy filaments are the brake/turn, and the thinner filament is the running light.
Clean up the ground by using emery on the sides of the bulb socket and the bulb itself, and see if this helps. Sometimes it is actually the connection to the socket itself.
