A short in the wiring harness between the pedal and the controller can send a false "pressed" signal.
The Jungheinrich error code 1901 is a common fault signal found in electric pallet jacks and forklifts, particularly within the EJE and ERE series. This error specifically points to a communication or synchronization failure between the tiller (handle) electronics and the main traction controller. When this code appears, the truck will typically enter a safety lockout mode, preventing travel or hydraulic functions to ensure operator safety. Understanding the Technical Cause Jungheinrich Error Code 1901
If the simple restart doesn't work, you may be looking at a more technical problem: A short in the wiring harness between the