Fault Phenomenon: Ruthmann T230 telescopic boom aerial work platform after the driver leaves the seat, the vehicle can still be operated.

Troubleshooting Process:
– Checked switch: switch normally closed.
– Checked wiring: wiring shorted.
– Checked seat: seat deformed.
– Checked controller: controller bypassed.

Root Cause: The seat safety switch has failed or the wiring is shorted.

Required Parts: Seat safety switch.