Troubleshooting 118376 Trailer Wiring Harness Dog Chewed Up Wires

Question:

Dog had chewed wires. As far as I can tell all the wires are fixed. Everything works but running lights. We jumped it near the hitch and they worked. It appears no power is on that wire right there at the hitch and battery box where the wires come out. We changed a fuse. Nothing.

asked by: Will

Expert Reply:

If you have voltage entering but not existing the converter box on the brown wire while the vehicle's headlights or running lights are switched on, then something internally in the converter box has shorted out and your
# 118376 T-One Wiring Harness will need to be replaced.

I've linked to a video showing the # 118376 being installed, as well as to a help article showing more strategies for troubleshooting trailer wiring harnesses.

expert reply by: Mike L