Sensor, Camshaft Position: Operation: Operation

The signal circuit of the camshaft sensor has a voltage of approximately 5 volt. If the closed segment of the tone wheel is positioned below the camshaft sensor tip, the camshaft signal is approximately 0 volt. This 0 volt to 5 volt signal is used by the Powertrain Control Module (PCM) for detecting ignition Top Dead Center (TDC) of cylinder 1 as the engine rotates. If no signal is supplied by the camshaft position sensor, the vehicle will take a little longer to start and a DTC will be set by the PCM.