CAMSHAFT POSITION (CMP) SENSOR [SKYACTIV-G 1.5, SKYACTIV-G 2.0]

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Purpose

•  Detects the camshaft position as basic information for mainly determining the fuel injection timing and ignition timing.

Function

•  Detects the camshaft position and sends it to the PCM as a camshaft position signal.

CMP sensor characteristic

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Construction

•  The intake CMP sensor is located on the cylinder head.
•  The exhaust CMP sensor is located on the rear housing.
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•  A magnetic resistance element has been adopted for the detection part of the CMP sensor.
•  The magnetic resistance element detects a magnetic field which varies with the distance from the magnetized object (detection plate) and outputs as a voltage value.
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Operation

1.  The CMP sensor detects (1) the camshaft position.

2.  When the camshaft position is detected, it sends (2) to the PCM as a camshaft position signal.

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Fail-safe


Intake CMP sensor

DTC No.

Fail-safe function
P0340:00
•  Sets the electric variable valve timing control to the maximum cam retard mode.
•  Inhibits traction control.


Exhaust CMP sensor

DTC No.

Fail-safe function
P0365:00
•  Stops the fuel injection.
•  Stops the ignition.