trailer lights

[jodeye]

I have installed new lights on my trailer now when my truck lights are turned on no trailer lights work when truck lights turned off the trailer lights work, any ideas?

 

[Pony]

Re: trailer lights

I would make sure all your grounds are good and clean (One at the tongue and then one at each light on the trailer.) Remember you wont get a good ground through rust or paint......the 2 or 3 times I have replaced all my lights and wiring, making good grunds was difficult because of that.<br /><br />I would check that first and then proceed from there.

 

[Bondo]

Re: trailer lights

Pony is Right on the Money,........<br /><br />Just for a Test,....<br />Attach 1 end of your Jumper Cables to to your Tow unit Frame,...... And the other end to the Trailer Frame,......<br />Make SURE it's a Metal to Metal connection......<br /><br />I'll Bet'ca your lights will Work,........ Perfectly............ <br /><br />Good luck......

 

[Silvertip]

Re: trailer lights

If you turn OFF the truck lights, how can the trailer lights turn ON? No power -- no lights. If you are talking about BRAKE lights, that would be possible and is likely a ground problem as point out. The white wire from the trailer plug must be firmly attached to the trailer frame. Each trailer light must also have a good solid/clean ground to the trailer frame. The bolts that hold the light to the trailer make that connection.

 

[tommays]

Re: trailer lights

<br /><br />look out for that white ground wire it causes a lot of problems<br /><br />tommays