Five Hundred AWD V6-3.0L VIN 1 (2005)
Camshaft Position Sensor: Description and Operation
CAMSHAFT POSITION (CMP) SENSOR
F-150 Hall-Effect CMP Sensor
Typical Variable Reluctance CMP Sensor
The CMP sensor detects the position of the camshaft. The CMP sensor identifies when piston No. 1 is on its compression stroke. A signal is then sent to
the PCM and used for synchronizing the sequential firing of the fuel injectors. Coil-on-plug (COP) ignition applications use the CMP signal to select the
proper ignition coil to fire. The input circuit to the PCM is referred to as the CMP input or circuit. DTC P0340 is associated with this sensor.
Vehicles with 2 CMP sensors are equipped with variable camshaft timing (VCT). They use the second sensor to identify the position of the camshaft on
bank 2 as an input to the PCM. DTC P0345 is associated with this sensor and it is referred to as CMP2.
There are 2 types of CMP sensors: the 3-pin connector Hall-effect type sensor (only used on F-150 4.2L applications) and the 2 pin connector variable
reluctance type sensor used on all other vehicle applications.
