CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [SKYACTIV-D 1.5]

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Visual Inspection

Caution

•  When replacing the CKP sensor, make sure there is no foreign matter on it such as metal shavings. If it is installed with foreign matter, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.

1.  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].)

2.  Lift up the vehicle.

3.  Remove the front under cover No.2. (See FRONT UNDER COVER No.2 REMOVAL/INSTALLATION.)

4.  Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)

5.  Verify that there are no metal shavings on the CKP sensor.

•  If there is a malfunction, remove any metal shavings that are adhering.

Voltage Inspection

Caution

•  When replacing the CKP sensor, make sure there is no foreign matter on it such as metal shavings. If it is installed with foreign matter, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.

•  If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.

1.  Start the engine and idle it.

2.  Measure the CKP sensor output voltage using an oscilloscope.

•  If not as specified, replace the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)

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Output voltage

Terminal	Voltage (V)	Condition
A	Approx. 5.0	Under any condition
B	Below 1.0	Under any condition
C	Above 4.5	High output*
	Below 0.8	Low output*

*  :Output voltage varies with crankshaft rotation.