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CRANKSHAFT POSITION (CKP) SENSOR CONSTRUCTION/OPERATION [L8, LF, L3]

id0140a5104800

• Installed on the side surface of the cylinder block (driver's side).
• The crankshaft position sensor pulse wheel has 30 projections with 10 ° of crank angle between the rising edge of each projection.
• The crankshaft position sensor consists of a Hall element with a magnetic sensor, and a processing circuit that performs signal amplification and identification.
• The projections on the plate installed to the crankshaft pulley cause a change in the magnetic flux when they pass near the magnetic sensor of the CKP sensor by the rotation of the crankshaft. The CKP sensor converts the change in magnetic flux to a digital waveform (rectangular waves) by the processing circuit. The PCM detects the engine speed and crankshaft position based on the crankshaft position waveforms.

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1 | Rotation
2 | CKP sensor
3 | Empty space
4 | Pulse wheel
5 | Main relay
6 | CKP output signal