Fault Phenomenon: Logisnext electric forklift when the driver’s seat is empty, the vehicle can still be operated, safety protection failed.

Troubleshooting Process:
– Checked seat switch: switch normally closed.
– Checked wiring: wiring shorted.
– Checked controller logic: logic error.
– Checked switch mechanical structure: switch spring failed.

Root Cause: The driver’s seat safety switch mechanically failed or wiring shorted, bypassing the safety feature.

Required Parts: Seat safety switch assembly.