How to Determine Whether the Electric Vehicle Motor or Controller is Faulty?

[BrookeFitz]

Disconnect all control wires connected to the controller, leaving only the power wires connected to the controller and the wires linking the controller to the motor. Use tweezers or a short wire to short-circuit the +5V and signal terminals of the connector, then observe whether the motor rotates. If the motor operates normally at this point, it indicates that the controller is not faulty, and the issue lies with the peripheral functional components. If the motor does not respond, turn off the power switch, disconnect the connected power wires and the wires linking the controller to the motor, completely separating the controller from the vehicle. Directly connect the power wires to the motor wires. Turn on the power switch and observe whether the motor operates normally. If the motor does not respond, it indicates that the motor is faulty.