WebMay 10, 2024 · 1,375 Posts. #8 · May 10, 2024. lugmastro said: Just bought a 2024 GMC 2500hd AT4, and am having an issue with trailer lights not working. Truck is not detecting the trailer. I have a 5 pin from the harness to a 7pin adapter (new and old adapter have been tried). No brakes are installed on the trailer, that wire is not grounded but is … WebIf you are too impatient or busy to watch the whole video then please use the chapter timestamps below to jump to the part that you are interested in!!I've i...
Trailer Running Lights Not Working? Here’re 4 Most Common …
WebSep 3, 2012 · It is posable that someone wired your brake lights into the same circuit as the brake controller wire. If the lights are wired in series with the controller and are first in the circuit they will use most of the power and the voltage drop will not allow the brakes to activate as they should. follow the wires and make sure they didn't tap into it. WebFeb 24, 2024 · This isn’t standard advice, but something you can do if you plan to replace the scotch locks with heat shrink butt connectors. Since you’ll have to cut the wires … palpitation icd 10 cm
Working Running Lights, But No Turn Signals or Brake Lights On Trailer ...
WebKeep reading to find out the reasons why your trailer running lights are not working. Contents [ hide] 1 Ground Wire Not Connected Properly. 1.1 Solution: 2 Blown Tow Package Fuse/Relay. 2.1 Solution: 3 Faulty Vehicle Side Connector. 3.1 Solution: 4 Faulty Trailer Side Connector. WebTo test the brakes you will want to set the brake controller to the highest setting and send power to the 7-Way by using the manual override. This should send 12V power to the … WebJan 16, 2024 · When just one of your brakes lights it out, you can isolate the issue to focus on that particular wire. When both your brake lights are out, that usually indicates a … palpitation icd code