2003 Chevy Express Trailer Wiring Diagram. Go ahead and push down the tab and pull it apart. We've already installed our hitch reciever, and begun installing a trailer.
To start off what we are going to do is install the T-One This is the connection we need to get to. I have a friend with a chevy truck and Wiring schematics and will help eliminate checking areas that are effected from whats causing the problem I have found the wiring diagrams (BELOW) for the trailer. Thanks to my man Mark west for hooking this up for me these are fuseblock and PCM and other essential wiring diagrams.
These Diagrams are easier to read once they are printed.
Heavy-Duty Trailer Wiring Package Your vehicle is equipped with the eight-wire trailer towing harness.
Offroaders Staff Editor Trailer & Towing. The Manual can be bought from an auto parts, the dealer, or some libraries. I have a friend with a chevy truck and Wiring schematics and will help eliminate checking areas that are effected from whats causing the problem I have found the wiring diagrams (BELOW) for the trailer.