Need help! Have a Yale Serial: A910V15859H. Lift has 1850 hours. The VSM shows codes 524225-0 and 524223-0. VSM will stop trans operation intermittently and truck disabled is shown on display. Cycle key switch and problem is corrected temporarily. According to what I have read on the inner web, these codes mean trans pressure out of range forward and reverse. Checked F/R pressure through VSM. Pressure maintains 170 PSI for both directions. 0 PSI at idle. I have cleaned the pressure transducers. I have been told that the pressure should be no greater than 150 PSI. I have read several posts on here of people having the same problems but none of them have posted the solution. I am hoping someone has had this issue and can shed some light.