No power

[McGLT57]

Seeing if anybody has any ideas for problem of license plate light and tow bundle not getting juice. This is for 08 base H3. It is a factory tow package and not aftermarket. Any help or suggestions would be great. I've of course replaced the bulb and replaced all fuses relating to the license plate light and trailer power bundle. I checked the wiring for any obvious cuts or grounds and not able to find any.

 

[08H3]

Just start probing for voltage from the bulbs forward is all I can recommend. Good luck tracking it down.

 

[5gn-h3t]

Look for cuts again. Open the rear gate and look where the wires bend up under the rear body weld.

 

[4speedfunk]

Yup. I do lots of bumper swaps and the wiring is chaffed on about 30% of them. Check the area right below the rear hatch hydraulic spring. Also the harness is sometimes lying on the exhaust system right by the muffler.

 

[McGLT57]

I've found a rub at the coupling for the trailer/license plate wire cluster. Odd piece is that it has no juice to it. The brown wire is rubbed and broken. Any common spots there after that you are aware of.

 

[f5moab]

Do any of the wires in the trailer bundle work; particularly the turn signals? If yes, swap the park lamp relay with another relay of the same specs and see what happens.

 

[McGLT57]

None of the trailer bundle plugs/ports are showing power. Tried the relay swap yesterday without results. Just tried the relay swap once again with no luck.

 

[McGLT57]

Thank you for all of the recommendations and suggestions. Was able to find out it was the rub from around the bumper as well as the connector under the hood for the trailer/license plate harness that's need some tightening. I can gladly say that everything is working great now. Again thanks for the help, glad I joined the group.