| First, make sure you have the correct harness for the '05, as not all years are the same.
Orientation with the plug’s release tab at the top:
1. Top left = Dark Blue…this is your output line to the trailer brakes
2. Top right = Light Blue….this is your brake pedal feed to the controller for actuation
3. Center left = Red…..this is your fused battery feed to power the controller
4. Bottom left = Brown…this is for the controller illumination
5. Bottom right = Black….this is the controller’s Ground
It is possible that the battery feed for the controller was never connected to the fuse panel under the hood. If so, the wire will be bundled near the Master cylinder and inner fender on the driver's side.
On Edit: The above is the basic GM harness, the tekonsha brand harness is somewhat different on colors, but the plug's wire pin locations are the same per function, if that helps.
__________________  2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN, Ride-Rite Air...  2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air, Sulastics Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab  I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"
Last edited by Hook'em_Horns!; 07-05-2009 at 01:08 PM.
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