When the main controller loses contact with this module, it enters a "Safe State." It assumes the operator cannot control speed or lifting, so it disables all hydraulic and drive functions.
Error code on a Jungheinrich EJE 120 typically indicates that there is no neutral zone detected in either the drive or lift/lower functions. This is a common issue often related to the steering maps and tiller head software. Common Causes & Solutions jungheinrich eje 120 error code 4372 top
Jungheinrich released a specifically for the tillerhead firmware to fix this. When the main controller loses contact with this
: The truck may cut out hydraulics or inhibit travel for safety. jungheinrich eje 120 error code 4372 top