Trailer Braking System Needs Servicing
This message appeared today while driving without a trailer or camper being towed. Any suggestions on possible problems to check before taking to dealer? 2012 Chevy Duramaz 2500 Thanks,
Forum Discussion
Got the multi-meter out and tested voltage on trailer brake connection and nothing. This is on both 7 way connections. One in back bumper and other in bed with a cover. Both have strong spring loaded covers. Turn signals and other things have voltage of 14 with truck running. Thinking, maybe brake relay switch. Thanks,
