Not sure but I will give it a shot. I find that the rubber mounts for the control valve are worn. Or the spring in the tilt spool is week, or the switch in the tilt spool is intermittent. All this assuming you have the SAS/ OPPS system on this lift. Anyway, causes the switch in the tilt spool to be engaged when it should not be. If the fault is there, by hand center the tilt lever, the light might go out. if it dose, you found it. Good luck, some of the things I have found.