Camshaft Position Sensor: Description and Operation
DescriptionThe Camshaft Position (CMP) Sensor is used to indicate camshaft position so the Powertrain Control Module (PCM) can determine which cylinder is misfiring when a misfire is present. Whenever the PCM receives an intermittent signal from the CMP, then the CMP Resync Counter will increment. In order to set a Diagnostic Trouble Code (DTC), the PCM must see a minimum number of resyncs within a maximum time.