Camshaft Position Sensor (2.4L)
Camshaft Position (CMP) sensor is located on rear of cylinder head, just below valve cover. See Fig 1 . CMP sensor uses a target magnet attached to rear of camshaft and uses locating dowels for proper positioning. See Fig 2 .
As target magnet rotates, CMP sensor senses the change in the polarity. The polarity change causes CMP sensor output voltage to switch from high-voltage of 5 volts (at magnet north pole) to a low-voltage of .3 volt (at magnet south pole). CMP sensor delivers input signal to Powertrain Control Module (PCM). PCM uses this input signal along with input signal from Crankshaft Position (CKP) sensor for determining crankshaft position for fuel injection synchronization and cylinder identification.