A method for operating a knock sensor - diagnostic system and knock sensor - the diagnostic system

摘要

A method for operating a knock sensor - diagnostic system, which comprises:a bias voltage is applied to a knock sensor;a first input signal on the basis of the prestress is received;a test signal having a predetermined frequency is generated and is applied to the knock sensor;a second input signal on the basis of the test signal is received; anda the knock sensor is associated with the short circuit on the basis of the first input signal is indicated and an open circuit associated with the knock sensor on the basis of the second input signal is displayed.