Jungheinrich Error Code 1901 ((install)) Link

While the most frequent cause is simple operator habits, hardware failures can also cause the system to falsely detect an active pedal.

If your Jungheinrich forklift is repeatedly showing Error 1901 and the troubleshooting steps above haven't resolved it, professional diagnostic support may be required. If you are currently experiencing this issue, let me know: Jungheinrich Error Code 1901

The forklift's central control unit runs a self-test when you turn the key switch or enter a PIN. The truck expects the accelerator pedal to be neutral. If the sensor shows the pedal is pressed, the system triggers code 1901 and disables travel functions. This fail-safe prevents the machine from jumping forward or backward upon startup, protecting operators and racks. Primary Causes of Error Code 1901 While the most frequent cause is simple operator

If you see error code 1901 on your display, follow these steps to reset the system: The truck expects the accelerator pedal to be neutral