Circuit Description

Crankshaft Position (CKP) sensor is a magnetic generator type sensor. CKP sensor produces an alternating current signal which increases in both frequency and amplitude as engine RPM increases. CKP sensor sends a reference signal to PCM to indicate crankshaft RPM and position. Reference signal, along with Camshaft Position (CMP) sensor signal, is used by PCM to calculate fuel injection pulse, determine TDC for ignition timing and establish a starting point for ignition coil and injection sequencing. DTC P0335 will set when:

• No CKP sensor signal to PCM exists during engine cranking.
• No CKP sensor signal to PCM exists with engine speed at 600 RPM or greater.