CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [LF, L5]

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Visual inspection

1.  Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [LF, L5].)

2.  Disconnect the negative battery cable.

3.  Remove the under cover.

4.  Remove the splash shield (RH).

5.  Disconnect the CKP sensor connector.

6.  Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [LF, L5].)

7.  Verify that there are no metal shavings on the sensor.

•  Remove any metal shavings that are adhering.


Air Gap Inspection

1.  Verify that the CKP sensor is securely installed.

2.  Using a thickness gauge, measure the air gap between the plate projections at the back of crankshaft pulley and the CKP sensor.

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•  If not within the specification, inspect the plate projections for cracks or bending.
―  If there is any malfunction, replace the crankshaft pulley. (See FRONT OIL SEAL REPLACEMENT [LF, L5].)
CKP sensor air gap
0.5—1.5 mm {0.02—0.05 in}


Voltage Inspection

1.  Idle the engine.

2.  Measure the CKP sensor output wave pattern using an oscilloscope. (See PCM INSPECTION [LF, L5])

•  If not within the specification, replace the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [LF, L5].)