Brake pedal switch wiring diagram

SOURCE: spark plug wiring diagram

I dont understand why you would need that unless you took off all the wires and took out all the plugs and forgot how the wires were.I have the same truck and I always do the plugs and wires one at time to make sure I make a mistake.If this is your ploblem let me know because i might be able to walk you though it.

Dale Farr

• 78 Answers
• Posted on Mar 18, 2009

SOURCE: wiring diagram or fuse box diagram-2007 GMC Envoy Denali

Hi there;

Here is the wiring diagram for the trailer wiring for your truck.

Hope this helps
Farrout!

SOURCE: trailer brake controller problem

I found the problem. Talking with a technician from the controller company, we determined that it was a fuse problem. I found that the fuse to the CHMSL was blown.

SOURCE: Trailer light wiring harness

try http://www.etrailer.com/faq-wiring.aspx. They have very good concise information that might help.

SOURCE: factory 5 wire trailer wiring to a 4 wire flat plug

there are premade kits that will automaticaly go from 5 round to four flat connection.