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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 P0073: Ambient Air Temperature Sensor Circuit High

DTC P0073: Ambient Air Temperature Sensor Circuit High

P0073 - AMBIENT AIR TEMPERATURE SENSOR CIRCUIT HIGH

Description:  The DTC indicates the sensor signal is greater than the self-test maximum.
Possible Causes: 
  • AAT circuit open or short to voltage
  • Damaged AAT sensor
Diagnostic Aids:  An AAT sensor reading greater than the self-test maximum with ignition ON engine OFF or during any engine operating mode indicates a concern is present.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST FA .