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No Left Stop/Turn Signal Light On Trailer


my left turn signal and brake light do not come on the light comes on but no turn signal or brake light all other lights are working


Expert Reply:

If you are just having an issue with the left side brake/turn signal light on your trailer then the first thing I would do is test the pin responsible for this signal on the vehicle side trailer connector. If the pin does not have power then most likely you have a blown fuse or bad relay. If you do have power then it could be a few different things on the trailer. If you trace this wire (usually yellow) back to the light assembly from the trailer connector that should then help you rule out a wire short. If there are no shorts then the issue is going to be either a blown bulb inside the taillight assembly or the taillight has lost its ground.

If you can provide more information on the trailer/vehicle then I may have better advice for you but the above will be a good start.

expert reply by:
Conner L

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