Jeffd

Yes it is the first time plugging into trailer but I stopped at dealer where I bough truck today and they had a trailer on site they offered to plug into, the truck turned out to be fine, the comments on needing a load attached were correct, the controller worked fine hooked to different trailer, I'll start checking the trailer pins, I have a new cord for trailer and I'll start looking for continuity to brakes, thanks all for the help, I'll post what I found out. First time rv'er so it's a good chance for me to learn the systems.(doesn't hurt I'm retired and got te time)

Thanks to both I have gain set at 10 and slider full over, no signal to tester or voltage to meter, I'll recheck fuses them bite the bullet and go to dealer

Hey all, I have 2015 Dodge Ram 3500, dual 7 pin trailer plugs, one in bed, one on fender, when connected to trailer, dash shows trailer not connected. I used plug in 7 pin tester, applied full brake, brake light on tester won't light, pushed manual slider over, no light on tester. Repeated with Vdc tester at both plugs, no voltage. I do get a slight pulsing on meter (light, no voltage. Reading) ditto on tester plugged in. Is this definitely a truck controller problem? I have checked the fuses under hood. Thanks, hate to take it in.