The sensor is attached to the steering gearbox. When the power steering is operating, the sensor sends a signal to the engine control unit, according to which the engine is rebuilt through the idle speed controller to an increased load.
Disconnect the sensor connector. Connect voltmeter to terminal and ground (e.g. motor block). Turn on the ignition, required value: 11-13 V. Turn off the ignition. Otherwise, find and repair the break in the electrical circuit.