2021 Ram 3500 Dually Bighorn Backup Lights

[Dinostop]

Any idea why my 2021 trailer backup lights feed has no power? I checked fuse and fuse is good. All other trailer lights work fine. I am trying to hook up an auxiliary backup light using only the center backup light and ground pins.

 

[McHenry2500]

If you're sure you have power to the BU lights, maybe check to make sure you're getting a good ground?

 

[Dinostop]

The issue is there is no power to the bu lights pin in the harness for the trailer. All other trailer light pins have power as they should except for the bu lights.

 

[Dinostop]

Even more odd is that the bed mounted trailer light connection has working bu lights just not the one on the back of the truck. Can’t figure out how to unplug the main harness by the back bumper to investigate further

 

[Dinostop]

Problem resolved. Bent pin where truck harness connects to trailer connector.