Case STX 450 clutch position potentiometer

[ripkenneth]

Hello! My Case IH STX 450 doesn't move. At first, the error code was 56016. We took out the potentiometer at the clutch pedal. There is 8 volts in the wire. If we reinstall it, we can't calibrate it. The star (*) does not appear on the calibration display. However, if we take it out and use a screwdriver to turn the potentiometer all the way down, the star appears next to the pedal up position. In the other direction, the star also appears next to the pedal down. However, it works the other way around, because if I turn it inward, it detects that the pedal is up. If I calibrate it this way, when reading the values, the pedal writes -42% when it is fully up. and if I press it, it goes up to 38%. I don't know where to look for the problem, so I can start with it if it is not in the pedal and I turn it with a screwdriver. Thank you in advance for your help, and sorry for my bad English.