Fault Phenomenon: OM Still electric forklift when pressing the accelerator pedal, the vehicle does not respond, or speed cannot be controlled.

Troubleshooting Process:
– Checked pedal potentiometer: potentiometer resistance infinite.
– Checked pedal mechanical structure: pedal broken.
– Checked harness connector: connector disconnected.
– Checked controller: no input signal to controller.

Root Cause: Open circuit in the accelerator pedal potentiometer or disconnected harness connector.

Required Parts: Accelerator pedal assembly.