Where is the crankshaft position sensor located on the Teana?
1 Answers
The crankshaft position sensor on the Teana is installed at the connection point between the engine and the transmission, mounted on the transmission housing. The principle of the crankshaft position sensor is to provide signals for ignition timing, ignition advance angle, and to confirm the crankshaft position, which are 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, i.e., the crankshaft angle and engine speed. The measurement method for the crankshaft position sensor is as follows: 1. Check the normal gap between the crankshaft position sensor and the pulse wheel target wheel, which should be greater than 0.5mm and less than 1.2mm. If the pulse wheel is installed incorrectly, being too large or too small, it may cause signal deviation; 2. Turn off the ignition switch, disconnect the crankshaft position sensor connector, and measure the resistance between terminal 1 and terminal 2 of the sensor, which should be between 400-600Ω. If the value 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 of the crankshaft position sensor should be insulated from the shielding wire; 3. Turn on the ignition switch and measure the voltage of the two signal lines to ground, which should be 1.4V. This is the preset voltage on the signal lines by the engine control unit. When starting the engine, 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, the computer will be unable to receive the crankshaft position signal, resulting in the engine failing to start.
