Modern electric forklifts require a specific "neutral" state before they can begin operation. If the controller detects that the accelerator pedal is already pressed down while the key is being turned or the deadman switch is engaged, it will trigger this fault and inhibit travel to ensure operator safety. 18;write_to_target_document7;default0;869;18;write_to_target_document1a;_GxjuaaCCDKeP8L0P1LrdkAo_20;16; 0;ea;0;7a;0;a5; Common Causes 0;16;
Dirt, debris, or a broken return spring holds the pedal down, preventing it from returning to neutral.
: Short circuits, open lines, or corroded pins between the travel setpoint device and the main computer controller. Step-by-Step Troubleshooting Checklist 1. Clear the Operator Interface Jungheinrich Error Code 1901
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If the pedal is physically fine, the sensor might need recalibration. This usually requires a qualified service technician to check the "neutral zone" of the throttle using Jungheinrich diagnostic tools. Related Jungheinrich Safety Codes Modern electric forklifts require a specific "neutral" state
: Turn the key switch to the "OFF" position, wait a few seconds, and then turn it back to "ON" without touching any pedals. Check for Obstructions
If the error persists even when the pedal is not touched, the following should be inspected: Faulty Potentiometer : Short circuits, open lines, or corroded pins
This article is for informational purposes. Always follow manufacturer safety procedures, wear appropriate PPE, and disconnect the battery before working on high-voltage components of electric forklifts.
completely from the drive pedal/accelerator. Turn the key or activate the controller again. Observe the display to see if the code clears. 2. Inspect the Pedal Assembly
: Resting a foot on the accelerator pedal when turning the key switch clockwise.