Description And Operation: Operation

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.