"Okay," Ray said, wiping grease from his hands. "This is the moment of truth. If I’m wrong, we’re calling a tow truck and writing off the meds."
With the power off, manually press and release the pedal several times. It should move smoothly and snap back to the top position without sticking. Jungheinrich Error Code 1901
Use the Jungheinrich diagnostic software (JET) to check the zero-point voltage of the drive pedal. If it rests outside the mapped tolerance, it will trigger a false activation at startup. Jungheinrich error code 1901 "Okay," Ray said, wiping grease from his hands
If error 1901 appears after controller replacement, perform a "CAN bus reset" via the service menu (Code 5 – CAN Reset). " Ray said