I hear you John, sounds frustrating but keep at it. Once you figure it out that warm and fuzzy feeling you get can't be beat, lol. By the way, if the solenoid is powered by the switch or pcb, then that could be shorted, loose, or otherwise activated. Was it working prior to docs install? I'm not second guessing your skills, just saying maybe start from the beginning and recheck install, wire by wire. I'm a diesel tech, (occasionally), and have had to retrace my steps to verify and correct things I missed or overlooked. It happens. I hope you figure it out.