08 Intergrated Brake Controller Testing

[bensrudy]

I have an 2008 2500 HD, I have pulled two trailers with trailer brakes and both of them have not responded at any level of the brake controller nor with tripping them with the manual slide. How can I test the trailer without another controller and also test the truck?

[cammiller]

Have you pulled the trailers with another truck?

[markw8]

Check with your dealer. There have been others with the same problem. GM says they are working on a fix. Mark.

[bensrudy]

Well, I switched the brake and aux wires on my adapter and the brakes worked on the gooseneck and I haven't pulled the dump trailer again yet. So, I do know now that my truck is working correctly. It may be in the wiring or the brakes themselves on the other trailers.