Where is the crankshaft sensor located on a Corolla?
2 Answers
The crankshaft sensor on a Corolla is located on the front right side of the engine near the pulley. The working principle of the crankshaft position sensor is to provide signals for ignition timing and confirm the position of the crankshaft, which are used to detect the top dead center of the piston, the angle of the crankshaft, and the engine speed. Taking the 2021 Corolla as an example, it belongs to the compact car category with body dimensions of: length 4635mm, width 1780mm, height 1455mm, wheelbase 2700mm, and a fuel tank capacity of 50 liters. The 2021 Corolla features a MacPherson strut front suspension and an E-type multi-link independent rear suspension. It is equipped with a 1.2T turbocharged engine delivering a maximum horsepower of 116PS, maximum power of 85kW, and maximum torque of 185Nm, paired with a 10-speed continuously variable transmission.
On my Corolla, the crankshaft sensor is typically located at the front or underside of the engine, near the crankshaft pulley. It's a small black box connected to the electronic system. I've found that in most model years of the Corolla, when you open the hood and look from the front left side, you can spot it mounted on the engine block. If you're checking it yourself, it's best to have a flashlight and basic wrenches ready, but remember to disconnect the battery's negative terminal to prevent short circuits, as the sensor circuitry is sensitive. Last time my car had sudden starting difficulties, it was caused by a faulty sensor - it detects crankshaft speed which affects ignition. Timely replacement can prevent engine stalling or misfiring issues. I recommend first consulting your vehicle manual or a professional technician for precise location, as installation positions may vary slightly between different Corolla model years.
