Description And Operation: Operation

WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

The Camshaft Position (CMP) Sensors:

Are provided a 5-Volt supply and a sensor ground circuit from the Powertrain Control Module (PCM).
Provides two camshaft positional signals to the PCM as they monitor the intake and exhaust cam positions on each cylinder head.

Operation:

As each camshaft rotates, a magnetic encoded tone wheel passes by the CMP sensor creating a changing magnetic field at the sensor face.
The changing magnetic field is read by the sensor electronics and a digital output, ON/OFF or HIGH/LOW pattern, is produced.
The PCM decodes the digital pattern to identify the Camshaft position.
The information from each individual Camshaft along with the Crankshaft information is used to control and sequence the Variable Valve Timing (VVT) system and fuel injection events.