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P00BC - Mass Or Volume Air Flow A Circuit Range/Performance - Air Flow Too Low

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DTC DESCRIPTION P00BC - MASS OR VOLUME AIR FLOW A CIRCUIT RANGE/PERFORMANCE - AIR FLOW TOO LOW

Description:  This DTC sets when the MAF21 value is within the expected range for the current operating conditions, and the MAF11 value is less than the MAF21 value.
Possible Causes: 
  • Bank 1 intake air system leak after the air filter
  • Damaged MAF11 sensor
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DC.