Component Location
General Description

The Crankshaft Position Sensor (CKPS) is a hall effect type sensor that generates voltage using a sensor and a target wheel mounted on the crankshaft. When the slot in the wheel aligns with the sensor, the sensor voltage outputs low. When the metal (tooth) in the wheel aligns with the sensor, the sensor voltage outputs high. The PCM calculates engine RPM by using the sensor’ s signal and controls the injection duration and the ignition timing. The engine will stop if the signals from the sensor to the PCM are lost.

DTC Description

If there is no change of signal, the PCM judged as a fault and DTC is set.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

● Patterns of the signalcombinations of the crank angle sensor signal are monitored every 2 sec. Continuously

● Poor connection

● Open or short in CKPS circuit

● Faulty CKPS

● Faulty PCM

Enable Conditions

● Crank switch is ON

Threshold value

● △Vcrank =0

Diagnosis Time

● Continuous

Schematic Diagram
Signal Waveform
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