2017 Chevy Silverado 1500 LT U1510 Code

[Nathan Wallace]

Hello I got a baffling problem with my 2017 Chevy Silverado 1500 LT with the 5.3 L and Z71 package in it. I got a U1510 code and U1501 code. The U1510 says it’s a LIN on bus communication issue. Now this was about the end of August when that happened. Looked at a few things couldn’t really figure it out and didn’t have the time to look because the truck seems to be running fine. About 4 days ago my service brake trailer starts flashing on my dash when I’m not even towing a trailer (the last time I did was about 5 days before this). Now I take it to my step father who owns a garage and has worked on chevys for years. Now the U1510 code is still  there when we scanned it but the U1501 code is gone but now on top of those codes there’s a U1037 code which is lost communication with trailer brake control module, P0562 which is low system voltage for Chasis Control Module, B127E code which is Front video display output signal, and C0800 code which is control module power circuit below voltage threshold for the power steering control module. The truck driving it runs perfectly fine, nothing abnormal at all. So thinking the trailer brake might be a separate issue we checked that out all the wiring etc and nothing wrong with it. So for the other codes we went and checked all the grounds on the truck thinking it might be a ground issue and all them seem to be good. We are starting to think maybe it’s a PCM, ECU problem because of all the random codes being thrown in every direction as well as codes in the system before disappearing. Any advice or help would be appreciated!!

[Sjet909]

Hey Nathan, did you ever find resolution to your problem? I have a 2016 Silverado 1500 experiencing the exact same symptoms and trouble codes. I've already replaced the two trailer brake modules, one by the spare tire and the other in the dash but still receiving a "Service Trailer Brake" message without towing. Also have 3 of the 4 codes you listed above. Dealer advises me to replace the battery cables but before I spend $$$ wanted to see if you had any luck. Any help is greatly appreciated. 

[Andrew Ebert]

Nathan and Jeff, any resolutions to the problems you describe above? I have a 16 silverado 1500 z71 with the same codes going off, and truck driving fine exactly like you describe. Looks like you were being prompted to switch the battery cables Jeff -- did you do that and did it work?

[2018GMC]

I still randomly get a service stabilitrack or service safety restraint system once in a few months. I used to get them fairly often. 

Replaced positive and negative battery cables, cleaned ground under passenger front fender liner and driver seat on frame rail. 

More info here: 

 

Guessing its a loose connection on harness somewhere...