Technical Definition:

Crankshaft Position (CKP) (Sensor A) Circuit Malfunction

Technical Description:

The crankshaft position sensor (CKP) measures crankshaft location and relays this information to the PCM (Powertrain Control Module).

Possible Causes:

• Damaged CKP sensor connector
• Damaged reluctor ring (missing teeth or not turning due to sheared-off keyway)
• Sensor output open
• Sensor output shorted to ground
• Sensor output shorted to voltage
• Failed crank sensor
• Broken timing belt
• Failed PCM

Possible Symptoms:

• Vehicle may not start (see above)
• Vehicle may run rough or misfire
• MIL illumination

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes: