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Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System (HEV)) >> Camshaft Position Sensor (CMPS) >> Description & Operation >> Description

Description & Operation: Description

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Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element.

It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of each cylinder which the CKPS can't detect.

The CMPS is installed on engine head cover and uses a target wheel installed on the camshaft. The Cam Position sensor is a hall-effect type sensor.

As the target wheel passes the Hall sensor, the magnetic field changes in the sensor. The sensor then switches a signal which creates a square wave.

G13388067Courtesy of KIA MOTORS AMERICA, INC.