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.

[EllaMarie]

As a veteran Crown driver with over a decade of experience, I can tell you that the crankshaft position sensor is usually hidden at the front or bottom of the engine, near the crankshaft pulley—the core rotating component during engine startup. During my own car repairs, I've had to open the hood several times to locate it by following the wiring connection points along the crankshaft belt; it's typically fixed on the side of the engine block. If this part fails, the car may experience hard starts or sudden stalling, which can be quite dangerous. I recommend keeping an eye on the engine oil condition and avoiding excessive dust exposure. For replacement, it's best to consult a professional mechanic since the sensor is in a tricky spot, and mishandling could damage its wiring harness. Regular maintenance can prevent such minor issues, saving you time and hassle.

[NolanLee]

As an amateur mechanic who often helps friends with car repairs, I can tell you that the crankshaft position sensor on a Toyota Crown is mostly installed on the side of the engine block, usually near the crankshaft pulley or flywheel. You can follow the engine front-end wiring harness to locate it. Its primary design function is to monitor the crankshaft position, ensuring accurate ignition timing. If it malfunctions, you might notice flashing warning lights or unstable idling. Before inspection, always turn off the ignition and disconnect the power to avoid short circuits that could damage components. Experience has taught me not to attempt disassembly carelessly—its position is tight and connected to complex wiring, making it easy to misalign if not handled properly. For daily driving, keeping the engine compartment clean can extend the sensor's lifespan.

[LaValeria]

As an ordinary Crown owner, I once curiously asked a technician about the crankshaft position sensor. It's located in the crankshaft area of the engine - simply put, just look near the front-left pulley when you open the hood. Its main function is to monitor engine speed and control fuel injection and ignition timing. If it fails, your car won't start, which can be really frustrating. Last time when my car had this issue, I immediately sent it for repair. They reminded me to avoid high temperatures and clean the engine compartment more often. Actually, its location isn't complicated, but beginners shouldn't attempt DIY repairs. It's safer and more efficient to find a reliable repair shop to get it fixed quickly.