Carriage 5th Wheel Owners Forum
October 01, 2014, 11:15:32 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Congratulations to the faithful !! The forum recently passed 1300 member mark....  Many thanks to our loyal members...Despite Carriage's demise, the forum will remain an open and honest venue of support and information exchange for Carriage owners
   Home   Help Search Calendar Login Register  
Pages: [1]
Author Topic: Service trailer brake system on GMC  (Read 1347 times)
Jim Cindy
Senior Member
Posts: 136

View Profile Email
« on: December 24, 2011, 07:29:08 AM »

My GMC occasionally comes up with  "Service trailer brake system, service 4 wheel drive system, service ABS brakes" on the dash display. Have had it to dealer and while the faults show up in computer, they say no cause can be found. Nothing is found wrong with the wiring, brakes or ABS. Had my own mechanic check too and he found no problem. Comes and goes with or without the 5th connected. Wondering if anyone else has had or heard about this problem and knows what was done to fix the issue.

Jim and Cindy
2009 Full Paint Cameo 34CK3
Morryde IS, Disc Brakes, G614's
Propane Yamaha 2400is
2008 GMC 2500HD, Duramax, Allison
Pullrite Superglide
Senior Member
Posts: 336

View Profile
« Reply #1 on: December 24, 2011, 07:41:52 AM »

The only things I've read about which might affect those items are:

Oversized tires.  For some reason the sensors get confused when you put larger tires or different sizes on the vehicle and throws similar codes.

Bad ground in the trailer brake wiring.  I'm not sure I've ever seen this associated with four wheel drive though.

Sorry, my advice is find a better dealer.   Smiley
Pages: [1]
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.14 | SMF © 2006-2011, Simple Machines LLC Valid XHTML 1.0! Valid CSS!