Hyundai Sonata: Camshaft Position Sensor (CMPS). Description and Operation
Description
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.

Crankshaft Position Sensor (CKPS). Repair procedures
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification:
Refer to “Wave Form”
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Camshaft Position Sensor (CMPS). Troubleshooting
Wave Form
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See also:
Instrument Cluster. Schematic Diagrams
Circuit Diagram
Input/Output Specification
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Programming HomeLink
✽ NOTICE
When programming a garage door opener, it is advised to park the vehicle
outside of the garage.
It is recommended that a new battery be placed in the hand-held transmitter
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Body Control Module (BCM). Components and Components Location
Components
...
