Circuit Description

CMP sensor (G22 signal) consist of a signal plate mounted on exhaust camshaft and a pick-up coil. G22 signal plate has one tooth on its outer circumference. DTC is set when 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.