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Home >> Ford >> 2017 >> Transit Connect XL, Van Cargo >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) - DTC P0001 - P0209 >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P00AC - Intake Air Temperature Sensor 1 Circuit Low (Bank 2)

P00AC - Intake Air Temperature Sensor 1 Circuit Low (Bank 2)

P00AC - INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOW (BANK 2)

Description:  This DTC sets when the intake air temperature bank 2, sensor 1 (IAT21) sensor signal is less than the self-test minimum.
Possible Causes: 
  • IAT21 circuit short to ground
  • Damaged IAT21 sensor
  • Incorrect harness connection
Diagnostic Aids:  An IAT21 sensor PID reading less than the self-test minimum 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 DA .