Class A DP Trailer Brake Controller Wiring
We have a 2009 Mandalay 43A, and I need to install a trailer brake controller. The rear of the coach has a seven-pin connector, but there's no controller up front. I realize unless you have the same c...
Forum Discussion
DSDP Don wrote:
If you're prewired, the loom will USUALLY consist of four wires, similar in color to the wires on your controller.
The issue with DP's is that they don't use a brake switch which triggers the braking system. They use pressure sensors on the firewall. You need something to trigger the system and make sure it doesn't come on with the exhaust/engine brake.
Most likely the factory wires are there for towing
Hooking the controller to the brake lite sensor is same as brake lite switch
As far as the exhaust brake goes how would it come on?
BUT If you have a trailer heavy enough you need electric brakes then there is no way a little exhaust brake will be sufficient to not only hold back the MH on a steep decline but the loaded trailer also
