Crankshaft Position Sensor: Description and Operation

PURPOSE
The Crankshaft Position (CKP) sensor provides a signal which is triggered by a high point on the front side of the flywheel.

OPERATION
The signal generated from the CKP sensor is called the CKP signal, which provides base timing and crankshaft speed (RPM) information to the Powertrain Control Module (PCM).

The PCM uses this information to determine ignition coil turn ON and turn OFF time.

CONSTRUCTION
The CKP sensor is a variable reluctance sensor.