I have an older RT3 plow that I just bought, installed the plow side 11 to 13 pin conversion kit, and a new 13 pin harness in my 08 2500hd. Everything including lights, smarthitch, raise, lower and the right side wing functions fine. The left side wing does nothing. The joystick seems to be functioning as it is sending power all the way back to the coil/manifold through the red wire with black tracer (I'm assuming this is the correct wire). Called Boss a couple times and got a few different suggestions, but they dont make sense. Grounded it with a jumper wire, can't seem to figure out why when it has power to it and a good ground it wont operate that wing? Any suggestions, where do I begin to track down the prob? Thanks.