Where is the Crankshaft Position Sensor Located on a Toyota Crown?

[McJordan]

Toyota Crown's crankshaft position sensor is located inside the air conditioning compressor, and it can be seen by removing the lower guard plate. The working principle of the crankshaft position sensor is to provide the ignition timing (ignition advance angle) and confirm the crankshaft position signal, which is used to detect the piston top dead center, crankshaft angle, and engine speed. The function of the crankshaft position sensor is to determine the position of the crankshaft, that is, the angle of the crankshaft and the engine speed. The measurement method of the crankshaft position sensor is as follows: 1. Check that the normal gap between the crankshaft position sensor and the pulse wheel (target wheel) should be greater than 0.5mm and less than 1.2mm. If the pulse wheel is installed incorrectly, too large or too small, it may cause signal deviation. 2. Turn off the ignition switch, disconnect the crankshaft position sensor connector, and measure that there should be 400～600Ω between terminal 1 and terminal 2 of the sensor. If it is not within this range, it can be determined that the crankshaft position sensor itself is faulty and should be replaced. The two signal lines and the shielding wire of the crankshaft position sensor are insulated. 3. Turn on the ignition switch, and measure that the voltage of the two signal lines to ground should be 1.4V, which is the preset voltage of the engine control unit on the signal lines. When starting the starter, measure the signal voltage of the crankshaft position sensor should be close to 1.6V. If the sensor is internally open or short-circuited, the signal lines, or the engine control unit are internally open or short-circuited, the computer will not be able to receive the crankshaft position signal, thus causing the engine to fail to start.