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Home >> Ford >> 2011 >> Focus S, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions - DTC P0001 Through DTC P0217 - (Except Diesel & Hybrid) >> DTC P0100: Mass Or Volume Air Flow A Circuit

DTC P0100: Mass Or Volume Air Flow A Circuit

P0100 - MASS OR VOLUME AIR FLOW A CIRCUIT

Description:  The powertrain control module (PCM) continuously monitors this sensor for concerns. The mass airflow (MAF) sensor is monitored for a low sensor frequency. This DTC sets if the sensor frequency changes below a minimum calibrated limit for greater than 0.5 seconds.
Possible Causes: 
  • Open MAF sensor element
Diagnostic Aids:  Install a new MAF/IAT sensor. Refer to the appropriate Electronic Engine Controls article.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC in table.