Ive installed a new Painless power window/door lock harness in my 80 Z28. Everything is new. Passenger side window works great, door locks work, but, drivers side window doesnt work, or at least it doesn't move. The relays click when I move switch one direction , but do not click when I move switch opposite direction on the driver side only . This harness is very simple , everything is connnected , I cant figure out where problem is. I thought motor was bad at first but got another motor and same result. Anyone have an idea to try? Oh, I also tried the old window switch , same thing. Help!