Problem with Interior Trailer Lights

[ishoot308]

Originally Posted by DC Pointer

Hi Everyone, not sure if this is posted in the right section, but I was hoping someone could help. I have a 2009 Chevy Tahoe with a full trailer package and 7 pin wiring harness. Also have an enclosed Thule Snowmobile Trailer. Everything (exterior lights, electric brakes) works great when I hook it up to the truck, but the interior lights are not firing up. It's almost like they are receiving no power at all. Is there a fuse I need to add somewhere? The manual is not very helpful. Seems like there should be a simple fix. Any help would be appreciated. Thanks!

The light fixture inside these trailers are not very well made. I have had this same issue on more than one trailer I own. If you have checked the obvious with a test light(light bulb, power to wire, etc, etc), the switch itself in the light fixture may be the problem. The slide style switch was the issue in my Sno Pro trailer as well as my Haulmark MC trailer.

Hope this helps.

Dan