I'm installing a trailer brake controller on a 2005 Quad Cab for a friend, but the card from Dodge is not in the package with the factory pigtail. Can someone help me out with which wire color wire does what? Thanks for the help.

 

On my 06 the pigtail has the same color wires as the brake controler. So it was like colored wires together. If all else fails call the dealership.

 

Ground curcuit - Dark Green with Black trace
Vehicle Brake sense input - Light Blue wire with White trace
Trailer tow electric brake feed - Light Blue wire
+12 Volts (30 amp max) Battery Feed - White wire with Red trace

 

Thanks for the help I appreciate it. Dealerships suck, I tried to talk to them and the answer I got was doesn't your brake controller have that information in the installation instructions. Customer service at Central Dodge in Raynham, MA is definitely not Five Star..lol

 

Here ya go!