Camshaft Position (CMP) Sensor (All Models)

On models equipped with a distributor, CMP sensor is made up of a Hall Effect switch (sync signal generator) and a rotating pulse ring (shutter) on distributor shaft. See Fig 1 . On Distributorless Ignition System (DIS), CMP sensor reads slots in cam timing sprocket. PCM uses this information along with information from Crankshaft Position (CKP) sensor to determine if fuel injectors and ignition coils are properly sequenced for correct cylinders.

Fig 1: Cut-Away View Of Hall Effect Distributor (Typical)

Courtesy of CHRYSLER CORP.