UPDATE: Problem Solved. Trailer is equipped an after-market brake controller that's tucked up under the trailer tongue/propane tanks and the trailer plug is plugged into this unit. Coming out of this unit is another plug, the one we've been attempting to use, that plugs into the tow vehicle. We...
That's the plan. Will report back once another trailer is tested. I won't be splurging for the tester, I'll let the dealership(s) figure it out once I determine the most likely culprit; truck or trailer.
My initial thoughts as well. I'm not leaning either way at this point, but hoping it's the borrowed trailer and not our brand new truck. Hoping it's a quick fix, regardless.
Thanks everyone for your input thus far. We plugged a basic 7-pin tester (looks like a 7-pin connector with lights on it to verify power to all circuits) into the truck and it shows that everything is working properly in the truck, or atleast that power is getting TO the trailer plug when it's...
No worries, I haven't added any grease, but looking in the connection, the factory applied grease is present. Trailer is a 2015 Airstream with electric brakes.
No worries, I haven't added any grease, but looking in the connection, the factory applied grease is present. Trailer is a 2015 Airstream with electric brakes.
'22 2500 6.7 Cummins. 1st time towing and dash says "trailer not connected." Lights and signals work AND the trailer brakes do work when the service brakes are applied. However, when I manually apply the trailer brakes by squeezing the toggle, they don't work - we don't slow down with the truck...
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