Circuit Description

Camshaft position sensor is a pick-up coil located on end of cylinder head at flywheel end of engine and uses a signal plate on outer circumference of intake camshaft. ECM uses input signals from camshaft position sensor to determine the standard crankshaft angle. DTC is set when ECM does not receive input signal from camshaft position sensor with engine cranking or with engine speed 600 RPM or more. Possible causes are:

• Camshaft position sensor circuit is open or shorted.
• Defective camshaft position sensor.
• Defective signal plate.
• Defective ECM.