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 This can be caused by physical wear, electrical drift, or outdated firmware that has a "neutral window" that is too narrow to accommodate normal sensor aging.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.
Inspect the wiring harness that runs through the tiller arm. This area is subject to constant flexing and is a common point for wire fatigue or shorts. 2. Software Calibration (Requires Judit Diagnostic Tool) jungheinrich eje 120 error code 4372 top
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
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. Damaged or loose wiring in the tiller head harness
A mechanical issue causing "backlash" or play that prevents the sensor from returning to a true neutral state. 1. Immediate Restart and Physical Inspection
Sometimes the error is transient. Turn the truck off and on again to see if the self-test clears the fault.
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.
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