Hyundai Creta: Engine Control System / 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. This sensor has a hall-effect IC which output voltage changes when magnetic field is made on the IC with current flow.

Troubleshooting

Waveform

Schematic diagrams

Circuit Diagram
(M/T)

(A/T)

Repair procedures

Inspection
1.
Check signal waveform of CKPS and CMPS using a GDS.
Specification : Refer to "Waveform"
Removal
  
DON’T remove the camshaft position sensor during engine running or right after engine stops, or a scald by the flowed out engine oil may occur.
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Disconnect the camshaft position sensor connector (A).
3.
Remove the mounting bolt (B), and then remove the sensor.
[Bank 1/Intake]

[Bank 1/Exhaust]

Installation
  
Install the component with the specified torques.
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
  
Apply the engine oil to the O-ring.
  
Insert the sensor in the installation hole and be careful not to damage when installation.
  
Be careful not to damage the sensor housing and the connector.
Be careful not to damage the O-ring.
1.
Install in the reverse order of removal.
Camshaft position sensor mounting bolt :
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)
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