Troubleshooting Service Trailer Brake System Error Message on 2011 Chevy Silverado

Question:

I have replaced : Fuse Solenoid ITBS Controller And the plug Still getting the service trailer brake system alert HELPPPPPPPPP MEEEEEEEEEEEEEEEEEE PLEASE PRETTY PLEASE IF YOU KNOW HOW TO FIX IT I WILL LITERALLY SEND YOU A $1,000,000 DOLLAR BILL!

asked by: ROBERT H

Expert Reply:

Since you've already checked the fuse for your brake controller the next easy thing to check is for corrosion on your trailer wiring pins. Check all of the pins and sand off any corrosion or dirt you may find. Cleaning the trailer wiring pins is what normally fixes most brake controller issues. Other issues can be a short on the brake controller output circuit wiring which is between the connector and the brake assemblies. Look for any cut or exposed wire and fix as needed. Bad trailer brake magnets can also be you issue. I attached a help article that details how to check for that as well as general brake controller troubleshooting as well.

Hopefully that helps as I've never seen a 1,000,000 dollar bill before.

expert reply by: Jameson C

Robert H.

1/22/2020

Nope It is a service trailer brake system on constantly regardless of trailer hook up

Jacob H.

1/22/2020

In that case I would recommend taking your truck to a dealer and have them check the OBD2 port for error codes.

Robert H.

1/22/2020

Replaced the plug in the back as well. No visible wire damage

Jacob H.

1/22/2020

You may want to check the wiring on the trailer as well as the brakes. I know that with trailers that I have hauled before that had something wrong on the trailer side. I would have warnings that would pop up in my truck and I had no idea where they were coming from until I connected a different trailer and I didn't have anymore issues. This may be a quick test that you can do. Hook your truck up to another trailer and that way you will narrow down if it's the truck or the trailer.