No marker lights on trailer

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Apr 17, 2017 | 07:08 PM

Hummer2008

Thread Starter

Junior Member

Joined: Mar 2017

Posts: 3

No marker lights on trailer

I hooked up my trailer today and I have no marker lights. I have a 2008 hummer h3, alpha. Brake and signal lights work. Anyone know if this is an easy fix? If it's a fuse, which number? I looked at a few today and none were blown. I tried to find 55 but couldn't see it. Please help, thx

Apr 18, 2017 | 04:19 AM

TAINTER

Senior Member

Joined: Sep 2008

Posts: 6,126

From: SE Michigan

Did you check the 7 pin connector on the H3 for marker light power (#3)?

If your rig is has power at the connector #3 position and the lights are not working on the trailer. It's the wiring of the trailer that is at fault. Any bulbs or fixtures damaged on the trailer?

You can also feed #3 power and #1 ground to see if the trailers lights work. If they work, it's the rigs wiring.

Last edited by TAINTER; Apr 18, 2017 at 04:30 AM.