I've been having problems with my trailer lights. When I connect a trailer to the back my tail lights work and so does that passenger side brake light and blinker.

The problem is the driver side brake light and the blinker. This is with both trailers I use.

I crawled under and right before the connector I tested for power and I didnt get any juice with the yellow wire so I located the problem. So I followed the wires all the way up as far as I could. All along the way the wires were in a plastic tubing until right about under my driver side seat they branched off into 2 directions.

Where it branches off it the tubing then leads to a mesh like casing and about 15 of the wires go directly up into the cab under the driver side seat and about 7 go towards the center into something else.

I wouldnt think my problem is with the wire in the tubing because that should be well protected.

Has anyone ran into this problem? Any suggestions? Thanks

 

i am having the exact issue with my ranger. i have not been able to track down the problem, its def coming from the stock wiring harness though.

 

A little more info such as year of truck ?

 

This is on a 2001 Edge 4X4

 

Pull that plug you found under the driver's seat area and spray some electrical contact cleaner in it.
Work the plug on and of a few times , then coat the pins with silicone dielectric grease.

Pi$$ poor place to put an important connector like that.

 

Bump

 

Ok I tried that and still no results, any other suggestions? Thanks