: The most common trigger is the absence of a defined neutral zone in the drive or lift/lower controls.
If the hardware checks out, connect a Jungheinrich diagnostic laptop.
Note symptoms and conditions
: Over time, the internal components that translate your hand movements into lifting or driving actions begin to output erratic or incorrect voltages.
The "window" for what the truck considers a neutral position is sometimes too narrow. Even a tiny amount of wear or a slight shift in the tiller's resting position can cause the signal to drift outside this window, triggering the "implausible" error. jungheinrich eje 120 error code 4372 work
: In some cases, the error is temporary and will clear after a restart, though it will likely recur if the underlying sensor or software issue is not addressed.
: He inspected the steering tiller and lift buttons to ensure they weren't physically stuck or obstructed. : The most common trigger is the absence
Once the physical repair is done:
Wait 60 seconds to allow the internal capacitors in the controller to drain completely. Reconnect and restart to see if the fault clears. Step 2: Perform Mechanical and Visual Inspections The "window" for what the truck considers a
The EJE 120 typically uses a 24V lead-acid or lithium-ion battery. If the battery voltage drops below 20V under load (lifting), the controller triggers code 4372. A battery with a dead cell will show good resting voltage (e.g., 24.5V) but collapse to 18V under load.
In older software versions, the system is less tolerant of these minor signal variances. How to Fix It