Splet04. feb. 2011 · Check the other turn signal and then have someone put their foot on the brake pedal and check the brake light pin the same way. Here is a wiring diagram that shows which pin is for each function. Just find the one that matches the one on your truck. Also some trouble shooting help. SpletThe first place to check will be your ground wires. If they are not connected, loose, or attached to the wrong surface and have become corroded, then your running lights may …

Troubleshooting Trailer Lighting Where Only One Running Light …

Splet15. jan. 2024 · If the light still does not work, the problem is a wire. It could be the supply wire coming from the plug to the light, or the portion of the ground wire going from the light back to the plug. The easiest way to check is with your truck connected, but you can also do it with no truck (if you are doing it with no truck, skip to Step Three, Part D). SpletProbe the wires, past the trailer connector, at different points working your way toward the trailer lights. This will tell you if there is a signal on those circuits and, if so, where the signal terminates. If you do not have any signal on the left stop/turn or running light circuit, then the issue could be in the connector itself. tajin snack sauce uses

Troubleshooting Left Blinker Not Working on a Trailer

SpletHere are the typical causes why trailer running lights will not work: 1. Failing Ground Wire Ground wires that are not working correctly can cause your trailer lights not to light when … Splet29. avg. 2007 · The brake lights/turn signals power came directly from the BCM, under the dash. This was changed in 06. There are three relays under the hood in the 06 and up; one for left turn, one for right turn and the third for trailer 12 volt power. The relay under the dash for the trailer running lights was not there on the 04 and 05s. tajin to go