If you have confirmed good voltage, clean connectors, and intact wires, the internal PCB is faulty. Jungheinrich does not sell individual components (like the e-stop or throttle sensor) separately for the EJE 120 "Top" module; you must purchase the entire upper control assembly.
Disclaimer: Always consult your specific truck’s operating manual and adhere to safety guidelines. If you are unsure about electrical repairs, consult a professional. jungheinrich eje 120 error code 4372 top
or a certified technician is recommended to perform the necessary software adjustments. Slideshare for the EJE 120 steering sensors? Discussion: Error 4372 - Forums - Forklift Action If you have confirmed good voltage, clean connectors,
Error 4372 "TOP" on the Jungheinrich EJE 120 is rarely a catastrophic controller failure. In 9 out of 10 cases, it is a $30 microswitch or a broken wire inside the tiller arm. If you are unsure about electrical repairs, consult
Perform a "teach-in" of the travel switch (if your equipment allows this in the maintenance menu) to recalibrate the neutral position. Immediate Emergency Troubleshooting If you need to move the truck immediately to clear a path: Restart the Truck: