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For starters unplug the plow light adapters and hook the headlights up as they left the factory. Then see what it does. What plow do you have?



Done that already and its same low beam out , when hooked up low beam om the truck and on the plow same side are out so falls in line with how the system works, circuit is out due to protection mode as controlled by computer. Plow is a dealer installed unit purchased with the truck in 06. Any scan tool suggestions? I might as well get a good one since I need it I heard the AZ and Reilly types do not retrieve the chassis electric codes



So what brand plow? For a proper scan you will need to see the Dealer. I would not trust a generic scan tool esp when you will need to get into the module.