Why does the brake light not work on a trailer?

Why does the brake light not work on a trailer?

It’s always a bit strange when just the turn signal (or just the brake light) doesn’t work on a trailer since the brake and turn signal light circuits are sent along the same wire. You mentioned running a new ground – was this for the main trailer harness or the light assemblies themselves?

Where are the brake lights and left side turn signals?

Your brake lights and turn signals for each side are on one circuit. The left side turn signal and brake light is generally the yellow wire going into your trailer connector. The first thing to do is check the fuses on your tow vehicle. Next, inspect and test the connector at the rear of your tow vehicle with a circuit tester, like # 40376.

Where is the right side turn signal on a trailer?

If you haven’t already, check the light assembly itself on the right side of the trailer. The light will either ground with a dedicated wire or through its mounting hardware – in either case, make sure it’s connected to a clean, corrosion-free piece of metal.

Why is the right side brake light not working?

The right side light does not work – no brake light or turn signal. We have changed the bulb but still nothing. Any suggestions? Sounds like you are not getting any voltage to the right side.

How to tell if a Kenworth low beam lamp is not working?

An expert that has 1 follower. Re: Low beam lamp (s) fault detected 2014 kenworth no low… Turn headlight switch on- headlights come on, then go off= “Low beam fault code detected” displays on dash while marker lights remain on. High beams will still function if switch remains on regardless of low beams not working.

Why is my right side turn signal not working?

If you find any loose connections, broken or frayed wires, those will need to be repaired as well. My issue is similar. All lights work on trailer. Marker, brake, left turn and right turn signal work. Except right turn will work when taillights are off.