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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 P009A: Intake Air Temperature/Ambient Air Temperature Correlation

DTC P009A: Intake Air Temperature/Ambient Air Temperature Correlation

P009A - INTAKE AIR TEMPERATURE/AMBIENT AIR TEMPERATURE CORRELATION

Description:  The DTC indicates that the intake air temperature (IAT) and ambient air temperature (AAT) sensor readings differ by greater than a calibrated value.
Possible Causes: 
  • Biased IAT or AAT sensor
  • Damaged IAT or AAT sensor
Diagnostic Aids:  Make sure the IAT, AAT and engine coolant temperature (ECT) sensor readings are within 18°C (32.4°F) of each other after 6 to 8 hours at a stabilized ambient temperature.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DA .