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Jungheinrich Eje 120 Error Code 4372

Verify that the throttle potentiometer or magnetic sensors are returning smoothly to their neutral positions. If the controller detects a throttle signal while trying to establish a baseline connection, it will trigger a communication fault. Resolution and Repair Actions Wire Repair vs. Harness Replacement

Visually inspect the harness for pinches, cuts, or exposed copper, particularly around the hinge area where flexing occurs.

Look for signs of water intrusion, burnt components, or cracked solder joints.

Error 4372 on the Jungheinrich EJE 120 is a brake circuit plausibility error. In 80% of cases, the issue is a damaged wiring harness or a failing brake coil, not the expensive main controller. Systematic electrical testing will pinpoint the fault and get your pallet truck back in operation safely.

Visually inspect the harness for pinches, cuts, or exposed copper, particularly around the hinge area where flexing occurs.

Look for signs of water intrusion, burnt components, or cracked solder joints.