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Message started by gully on 09/01/13 at 11:19:01

Title: Trailer Lights
Post by gully on 09/01/13 at 11:19:01

Decided to replace the trailer lights on my old utility trailer with LED's.

The lights worked when removed.

Installed new lights and replaced ALL trailer wires with a wiring kit.

Turn and Stop work fine when driving lights are OFF however when I turn on signal lights while driving lights on I get a pulsing effect from trailer lights.

I have not tried Brake lights with driving lights on.

Looking for a solution via Google there was a suggestion that tow vehicle ground might be bad. Cleaned and reconnected.

I have not replaced tow vehicle trailer light harness.

Any suggestions what may be cause and cure???

I have a tow to London and back this week and want good lights. There is no guarantee that whole trip will be in day light hours. I curse all those I see with bad trailer lights so I don't want to be one that others are cursing

Pete g

Title: Re: Trailer Lights
Post by 2000 Impreza on 09/17/13 at 15:48:42

I had a similar problem and it ended up being a bad ground on the trailer.

Title: Re: Trailer Lights
Post by rosswood on 09/18/13 at 04:55:40

Trailer light problems indeed are often a problem with grounding.

Does the car have separate bulbs for brake and turn signals? If so, you need to buy a module that combines them for the trailer - available at CTC or any trailer shop.

I can bring a nifty test light with me tomorrow, if you like.

Title: Re: Trailer Lights
Post by gully on 09/18/13 at 15:19:10

I have since solved the problem. Just left the lights on for about an hour.

Was suggested that they either burnt a ground in or Car computer found the trailer lights. All I know is thankfully they work. Next step was to just run a ground from all lights and forget the trailer frame existed

Pete g