Most modern Jungheinrich trucks require the proprietary Judit Diagnostic Software for a permanent fix.
This error is part of the truck’s event messaging system, where the first two digits usually refer to the function group—in this case, steering and control interfaces.
Jungheinrich has released updates specifically for this error that expand the neutral "window" . This allows the controller to accept a slightly wider range of values as "neutral," preventing the error from triggering due to minor sensor drift.
A mechanical issue causing "backlash" or play that prevents the sensor from returning to a true neutral state. 1. Immediate Restart and Physical Inspection
A technician can perform a "Teach-In" to recalibrate the actual values for the direction and travel potentiometers. 3. Component Replacement If calibration fails or the error returns immediately:
The controller detects that there is no neutral zone (zero-travel position) for the drive or lift/lower functions. This can be caused by physical wear, electrical drift, or outdated firmware that has a "neutral window" that is too narrow to accommodate normal sensor aging. Secondary Causes: Faulty traction or steering sensors within the tiller head. Damaged or loose wiring in the tiller head harness.