So today I decided to install a CoolTech wiring harness on my new Wrangler based on some reviews on this site and others. Connecting the harness to the rear left taillight and routing through the frame was fairly easy and straight forward. Things went downhill from there.....
I decided to change from a 4 pin connector to a 6 pin to allow for a battery charge wire. Using a 6 pin wiring diagram I realized that the wire color/function coming from the CoolTech harness was incorrect. Here is what I found....
Ground-- Harness: brown, Standard: White
Tail/Running Lights-- Harness: Red, Standard: Brown
Left Turn Signal-- Harness: Green, Standard: Yellow
Right Turn Signal-- Hardness: Yellow, Standard: Green
So basically the right and left turn signal functions and wire colors were reversed. The ground and tail/running lights were completely the wrong colors.
I ended up ignoring the color coming from wiring harness and going with the function when I was connecting up to the 6 pin adapter. I then metered out each pin. Example... I turned on the lights and made sure that the correct pin on the 6 pin adapter showed 12v. Did the same with the right and left turn signals (these would cycle 12v and 0v based on when the signal lit).
Why does the CoolTech wiring harness use the wrong wire colors, especially the reversed colors for the right and left turn signal.
I guess their Deluxe kit (the 7 pin to 4 pin umbilical cord) handles the non-standard mapping. (I didn't need their deluxe kit....already had a 7 pin to 6 pin umbilical cable)
It is funny that their instructions also state that there is no standard for a 4 pin connector, which is incorrect.
Would I buy again....no!