Crank Shaft Position Sensor(CKPS) is magnetic inductive type. Mounted on transaxle hausing, it senses tone wheel position of fly wheel.
As tone wheel is devided with 58 teeth and 2 missing teeth (referrence point), 1 tooth corresponds to 6 degree.
CKPS which calculates RPM and crank angle is important to determine fuel injection quantity and injection timing with APS.
Crank shaft position is closely related to engine starting.