You got a bad thermo. Active low means 0 volts or active g24 on that particular input and thats what you got right now. Just lift the wire off the input term...SBR has a great point if it holeless those can be notorious for trying to resync but they will eventually fault out with a resync fault. A hard resync is to pull the buffer stands out and manually lower the car down this evens out the pressure on each jack which reseats the check valves in the pistons. Good luck...Oh the over temp sw. Is normally closed and the oil temp set is normally open when the oil is perfectly warm.