What is the detection method for the crankshaft position sensor?

[AlyssaMarie]

Detection method for the crankshaft position sensor is as follows: Turn on the ignition switch, measure the voltage of the two signal lines to ground should be 1.4V, which is the preset voltage on the signal line by the engine control unit. When starting the starter, measure the signal voltage of the crankshaft position sensor should be close to 1.6V. If there is an open or short circuit inside the sensor, signal lines, or engine control unit, it will cause the computer to be unable to receive the crankshaft position signal, and the engine will fail to start. Extension: If the crankshaft position sensor is damaged, the rotation angle of the crankshaft cannot be confirmed, and the engine computer cannot receive the signal from the crankshaft position sensor. To protect the engine, it will not ignite or inject fuel. The symptoms shown by the car are no high voltage, no fuel injection, and failure to start. The most obvious phenomenon is that the engine fault light on the dashboard lights up.