[jsb5717]

Do you have the adapter for the GM product to supply the full 12v to the trailer connection?

I had that same disconnecting error happening with our RAM last season. I happened to have a Tekonsha controller as a backup so I plugged that in. I still kept getting a disconnect. So I knew that it was either the truck wiring or trailer wiring, not the controller itself. When I did a thorough inspection of our trailer brakes I discovered two issues.

1. I had a broken brake wire inside one of the wheel hubs. Repaired it.
2. I cut and pulled the brake wires from inside the axles. I discovered they had worn, allowing intermittent shorting...hence my intermittent disconnect notification. I rewired the brakes at both axles to the exterior of the axle, using zip ties to secure the wires to the axle to eliminate further rubbing and wear. Brakes have worked perfectly since.