Hi all Well we have had them all toyhauler, travel trailer,multiple campers, and cargo.We are now back to comfy however 21 year young 26 foot 5th. Its a slumber queen and its actually quite nice.I di...
It's not difficult to troubleshoot. Start with your plug on the truck with your meter and identify the ground in the plug, then identify the pairs that work. Remember that signals are just right and left brake lines. If they are on the plug, are they blinking?
Verify that you are getting the voltage on the right numbers on the plug. If they blink on the truck, they should show up blinking on the plug too.