Circuit Description

CMP sensor is a pick-up coil mounted in outer corner of cylinder head, just below valve cover. A 3-tooth signal plate is mounted to each intake camshaft sprocket. DTC is set when either no cranking or engine running signal is received by ECM from CMP sensor. Possible causes are:

• CMP sensor circuit is open or shorted.
• Defective CMP sensor.
• Defective signal plate.
• Defective ECM.