Possible causes

– Dirty engine oil
– Low engine oil level
– Faulty exhaust valve control solenoid
– Exhaust valve control solenoid harness is open or shorted
– Exhaust valve control solenoid circuit poor electrical connection

When is the code detected?

ECM monitors OCV stuck while cam signal is normally generating and Valve cleaning is not in progress.If the CAM Acutal Position is too high or low and Difference between Cam Actual Positionand Desired Position is higher than 20