I have a New Holland TN95 4WD transmission failing, always connected four-wheel drive after a few seconds to power up and gave error code 18 and 35. Replacing the electronic control unit ref. 5199486. The problem of missing four-wheel drive, but now I get an error code 55 of the front linkage that is controlled by the same unit (5199486). I need to calibrate the electronic front lift. In the user manual are not the steps to calibrate with the diagnostic tool ref. 294084. If anyone knows how to do it would be much appreciated. Thanks