cbrentfly2002
08-25-2006, 09:22 PM
I was wondering if anyone knows about the factory wiring on an 03 envoy. I have a set of wires underneth the drivers side steering column. There is about 4 wires, labeled BLK ground, light blue accy, orange batt, and 1 other. THe one I have a question about it the light Blue, Does anyone know where it is fused from. I cannot seem to get any current to it. Thanks for the help. Brent
moorepower
08-26-2006, 12:03 AM
Hey, Brent. If they're coming from the far left side of the dash, then they're wires for an aftermarket trailer brake controller. You should get voltage on one of the wires when you press the brake pedal. This is probably the light blue one. Hope this helps.
the roadie
08-26-2006, 02:27 PM
Light blue is from the brake pedal. Dark blue connects to the controller's output wire and back to the 7-wire Bargman near the hitch.