Easy lifehacks

Is the trailer brake control module missing from my Silverado?

Is the trailer brake control module missing from my Silverado?

I bought a 2009 Silverado 2500 at auction and come to find out the entire trailer brake control module and relay were missing. Ordered this and it was at my doorstep as expected.

Is the trailer brake Lite on a Sierra 2500 HD?

2013 Sierra 2500 HD had an intermittent service trailer brake system lite and warning tone, even without a trailer hooked up. I had to drop the spare tire, and remove a metal plate with this and one other electrical assembly on it.

What is the trailer brake code for a Silverado LTZ?

This fixed my 2008 Silverado LTZ’s Service Trailer Brake Code C0845. I did have to reprogram it through AC/Delco. I used a VXDIAG and a $40 subscription to GM to do it myself.

What does a GM trailer tow relay do?

This trailer tow relay provides a variety of control functions for a vehicle’s trailer brake system, and has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Everything about us begins with innovation. We believe success is born from it.

How does the trailer brake system work on a Duramax?

If the fuse is installed and working, you should see >+12VDC on Stud 2. This provides power to the TBCR. When the TBCR is switched on by the TBCM this +12 VDC is indirectly fed to the trailer brakes via the TBCR. This wire typically comes hooked up and fused.

What are the components of a trailer brake system?

There are 3 main components to the Integrated Trailer Brake Control System (i.e. The Trailer Brake Control Switch (TBCS), the Trailer Brake Control Module (TBCM ), and the Trailer Brake Control Relay (TBCR).) There are three other primary inputs to the TBCM. Two come via the Serial Data Network.

Where does the trailer brake wire come from?

The Red/Black wire for the Trailer Brakes typically comes hooked up to Stud 2. (Mine was hooked up.) If the ITBC system’s Red/Black wire is not hooked up, then you have to find it and hook it to Stud 2. But, do not confuse it with the other two Red/Black Wires used for Aux Power.

Why does my trailer have no brake system?

And have you tried another trailer with known good lighting and brakes? My experience is that “Service Trailer Brake System” is usually caused by some corrosion at the wiring connecters at the rear bumper plugs, where it ties into the truck’s wiring and the connector to the 7 way receptacle.

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Ruth Doyle