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Matthew Wright

Trailer Wiring Problems? Troubleshooting Help is Here

By October 23, 2010

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If you've ever been a regular puller of trailers, you've probably found yourself staring at the trailer wiring plug wondering how you're going to find the patience to get it fixed and get back on the road. Trailer wiring can be very frustrating to troubleshoot. Hours can be spent with a standard test light trying to match wires to lights to problems. We recently tested a tool that might make things a lot easier when it comes to trailer wiring. Check it out and see for yourself!

October 25, 2010 at 8:09 am
(1) mike says:

this is a great starting point tool. don’t forget the ground wire, or the fact that most lights ground by the metal to metal connection thru the frame, but even a 4 way connector carries a ground wire.

May 5, 2013 at 6:26 pm
(2) Carl says:

May I throw 2 pennies? I have a Suburban 05 and had to do the trailer wiring. I had 2 blown fuses at the motor fuse box (inside hood at driver side) and 2 fuses at the side of the driver door fuse box. before this I couldn’t get it going. Oh and let me also put in that besides fuses you must make sure you got a good ground at the trailer or it will not work. buy a light tester- a must . A 4 way connector that had only 3 wires and a short one for ground, Green for the right and brown and yellow for the left , brown is for the plate but both go on one and for the right(only one wire yellow ) for the right side. YOUTUBE is a free college :)

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