Crankshaft Position Sensor: Description and Operation

Crankshaft Position (CKP) Sensor:

PURPOSE
The Crankshaft Position (CKP) sensor provides a signal which is triggered by a 36-minus-1 tooth trigger pulse wheel located inside the engine front cover.

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.