I own a 2003 2500hd with the 8.1/allison.. it is equipped with a 9 pin wiring harness with the 6 relays in order to make the plow lights work.... i have the plow in perfect working order but when i plug the plow in the truck lights stay on and i have no plow lights?? Any ideas
Take it this is a recent install with used equipment?
03 uses a 12 pin harness with 6 relays. You need a completely different harness and also need to change the headlight/control harness on the plow side.
are you sure its a 12 pin, the 9 pin and 12 pin will plug into each other, the 9 will have 3 dead pins. Need to count the pins on the plow side harness , should be 12 there.
Well there you go. Only need to change the harness not the whole headlights, easy to do and cheaper than changing out the headlights also. Give me a few and ill look for the part #
+/- $150. Dealer will probably have to order it in, cont let them give you some song and dance about having to order the whole headlight kit. If your dealer wont do it look up Basher, B&B or Arch Burn on here, they are over that way and will help you out.
The harness you installed on the truck, did it have a green with white, red with white orange whit white and yellow with white wire that went to the relays?
sounds good... im sure ill be here alot because my plow is gettin pretty old and beat
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