The EJE 120 tiller arm articulates constantly. Inside the steel tiller tube, a tightly packed wiring loom runs from the chassis to the "Top" module. Over thousands of steering cycles (left to right), these copper wires undergo metal fatigue. Eventually, the internal strands snap. The most vulnerable spot is exactly where the loom exits the tiller arm hinge and enters the main chassis.
The or serial number range of your EJE 120 truck.
To resolve the issue systematically, follow these diagnostic procedures. 1. Perform a System Reset and Visual Inspection jungheinrich eje 120 error code 4372 top
[ Tiller Head Position Sensors ] │ (Analog Signal Transmission) │ ▼ [ Micro-Window Neutral Zone ] <── Error 4372 Triggers Here │ (Signal Implausible / Narrow Zone) ▼ [ Drive Controller Cut-out ] 1. Narrow Neutral Zone Window
: High humidity environments can cause moisture buildup on the tiller head's print card, leading to intermittent signal failures. The EJE 120 tiller arm articulates constantly
Jungheinrich trucks utilize a highly standardized, four-digit diagnostic trouble code (DTC) architecture. Within this framework, specifically points to an analog voltage anomaly in the tiller head assembly:
The error specifically indicates a , where the neutral zone is too narrow. The tiller head contains sensors (sometimes referred to as a "butterfly sensor") that send "analog signals" to the main controller regarding the position of the tiller (drive/lift/lower). When the controller receives two conflicting signals or detects no distinct neutral zone, it triggers the 4372 error to protect the system from unintended operation. This is described by some sources as a "mismatch in the two signals from butterfly sensor". Eventually, the internal strands snap
Move the handle from the fully vertical (top) position down to the drive position slowly. Listen closely near the handle pivot point. You should hear distinct "clicks" as the microswitches activate and deactivate.
Wait 30 seconds before reconnecting and turning the key back on.
Apply a Jungheinrich firmware update via service Judit software. Widens the neutral zone software "window".
For professional assistance, you can use the Jungheinrich Call4Service App to request a technician directly from your mobile device. Do you have access to the , or Discussion: Error 4372 - Forums - Forklift Action