Still having wiring issues on a Sunset Creek
Ok guys/gals...Ive been having an issue when I hook up my travel trailer to my truck. The problem is that my running lights will not work when I turn on my lights. My blinkers work, hazards work, and ...
Forum Discussion
It is hard to troubleshoot a problem without collecting the data myself but I will take a stab at it.
My guess would be that you have a bad connection on the truck side. If you check for 12V with a meter it will appear to be OK as the meter does not need much current to measure voltage. Maybe only microamps, depending upon the meter. The running lights require considerably more current to operate and the bad connection will not let this happen. It is like a garden hose that is pinched...you have line pressure (voltage) but there is no flow (current).
Retired Electrical Engineer
My guess would be that you have a bad connection on the truck side. If you check for 12V with a meter it will appear to be OK as the meter does not need much current to measure voltage. Maybe only microamps, depending upon the meter. The running lights require considerably more current to operate and the bad connection will not let this happen. It is like a garden hose that is pinched...you have line pressure (voltage) but there is no flow (current).
Retired Electrical Engineer
