Park Avenue V6-3.8L SC VIN 1 (2005)
Camshaft Position Sensor: Description and Operation
CAMSHAFT POSITION (CMP) SENSOR
The camshaft position (CMP) sensor signal is a digital ON/OFF pulse, output once per revolution of the camshaft. The CMP sensor does not directly
affect the operation of the ignition system. The CMP sensor information is used by the powertrain control module (PCM) to determine the position of the
valve train relative to the CKP. By monitoring the CMP and CKP signals the PCM can accurately time the operation of the fuel injectors. The CMP
sensor shares 12-volt and low reference circuits with the CKP sensor. The CMP signal circuit is input to the ICM.
