GM integrated brake control
I was at the rv repair shop this morning for the second time about my brake controller not working....It was determined that the integrated control was not functioning and was sending a constant 3.6 ...
Forum Discussion
OK, here's the story on GMs. The installed Brake controller send a digital signal down the line (approx 3 to 4 volts) looking for the correct resistance. Once it see the correct resistance it will give the "Trailer Connected" message and will now supply the proper voltage and current to the brakes. What happens these "So called Techs" put a voltmeter on the brake control line and read that digital signal and tell you there is a problem with the controller which is untrue. I have over 86K on my 3500 and 90 to 95% of that mileage is towing heavy without any trailer brake problems.
