Thread Tools Search this Thread Display Modes
Old 05-31-2016, 01:21 PM   #1
3 Rivet Member
2015 25' FB Flying Cloud
Sandy , Utah
Join Date: May 2015
Posts: 102
"Check Trailer Wiring" message

Does anyone know if AS uses the steel frame for a ground to the electric brakes on newer AS units? I am having common issues (judging by posts to GM forums) with "Check Trailer Wiring" message and beeps going off every 5 minutes. Chevy checked the truck and replaced the trailer plug even though they could find no problem. I replaced the plug on the AS thinking that might be the problem also. The best advise I have found yet seems to be a short or bad ground connection to one of the brakes. Does AS run both hot and ground to each wheel or just hot like other trailers? Where is the "Ground Bus"?

rocco52 is offline   Reply With Quote
Old 05-31-2016, 02:11 PM   #2
Agent 86
J. Morgan's Avatar
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton , Arkansas
Join Date: Mar 2013
Posts: 4,361
Images: 11
Every electric brake hub I have ever seen has two wires extending through the backing plates from the magnets, one for ground and the other to the controller.

I have never seen electric brakes that use a buss for grounding, but every magnet must be grounded.

If everything is hooked up well, and the grounds are good, a common problem can be that the magnets got too hot and the insulation on the two wires has melted and and as a result are shorted to ground.

Superat stultitia.

The fact that I am opinionated does not presuppose that I am wrong......

J. Morgan is offline   Reply With Quote
Old 05-31-2016, 03:39 PM   #3
3 Rivet Member
2015 25' FB Flying Cloud
Sandy , Utah
Join Date: May 2015
Posts: 102
Hello J,

Thanks for your reply. The wiring diagram in my manual shows the white wire from trailer plug connected to a Ground Buss and then a white wire from ground buss to the brakes. I should have looked at it closer. The blue Brake wire from the plug is connected to brakes also. My other question is where is the Ground Buss shown on the diagram if anyone knows.

rocco52 is offline   Reply With Quote
Old 05-31-2016, 04:42 PM   #4
4 Rivet Member
time2play's Avatar
2013 30' Classic
Kent , Washington
Join Date: Mar 2013
Posts: 323
We got this message a few times when we bought our new truck. It was very disconcerting to say the least.

We were finally advised to replace the connection cord with a slighter longer one. There just wasn't enough give for the connection to be secure. Ever since we got the replacement cord, the message has not appeared again.

Knock on wood.

Good Luck to you.
Yolanda (and Phil)
2013 30' Classic Limited
2015 GMC Sierra Denali 2500HD
ProPride 3P Trailer Sway Control Hitch
WBCCI #7878
time2play is offline   Reply With Quote
Old 06-01-2016, 12:34 PM   #5
4 Rivet Member
1977 31' Sovereign
Lynnwood , Washington
Join Date: Jan 2015
Posts: 282
Your Chevy's computer is working as intended. It's letting you know you've got an electrical issue with your Airstream. The real problem is that it's intermittent and only occurs when traveling. That's gonna make diagnosis difficult, even on a good day.

My guess is you've got a frayed wire grounding itself someplace. And that "someplace" is anybody's guess.

Have your mechanic clear the warning light. For that matter, have him clear all codes. You may have an old (stored; obsolete) code that is setting off the check trailer light.

When the check trailer light reappears is the time to diagnose. This must be done immediately. If the light turns itself off, you will have missed your window of opportunity. Pin-point diagnosis can only occur while light is still on.

TomKirk is offline   Reply With Quote
Old 06-01-2016, 12:55 PM   #6
3 Rivet Member
2015 25' FB Flying Cloud
Sandy , Utah
Join Date: May 2015
Posts: 102
You are 100% correct Tom. After reading posts in a Chevy Forum and having replaced the trailer plug and plugin on the truck without solving the problem I crawled under the trailer and found a wire hanging by a thread, with no insulation left, touching the backing plate. Kind of odd for a 1 year old trailer. I am going to repair the wire and test again. I guess the newer trucks with built in brake controllers are very sensitive. I am also going to find out which fuse to pull and shut off the annoying chime that I listened to for 600 miles over the weekend!
rocco52 is offline   Reply With Quote
Old 06-01-2016, 01:33 PM   #7
4 Rivet Member
Silver Hawk's Avatar
1975 31' Sovereign
Palomar Mountain , California
Join Date: Feb 2013
Posts: 317
One thing I learned when installing my new axles/brakes - it doesn't matter which wire you use for ground or to controller in TV. Magnets don't care. Might help.
Silver Hawk is offline   Reply With Quote
Old 06-07-2016, 01:51 PM   #8
3 Rivet Member
2015 25' FB Flying Cloud
Sandy , Utah
Join Date: May 2015
Posts: 102
Here is an update. I repaired the broken brake wire and also did some repair to all of the other brake wires. The factory had left them way too long even taking into consideration the up and down movement of the axles and wheels. They had left them all hanging out there just waiting to snag on something. I test towed it and problem gone!

rocco52 is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
WARNING! Check your brake wiring... 75TH BAMBI Brakes & Brake Controllers 20 10-11-2014 08:40 AM
check engine compartments for "tenants" maznblu Tow Vehicles 0 12-01-2003 11:05 AM
Refrigerator "Check" light on mcostanzo Refrigerators 5 06-27-2003 10:06 AM
Check , Check and Re-Check a new refer saga. thenewkid64 Refrigerators 13 06-24-2002 09:54 AM

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:37 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.