2006 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

DTC P0111: Notes

DTC P0111 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES

DTC PO111 IAT circuit performance problem
DETECTION CONDITION 
  • Intake air temperature is higher than engine coolant temperature by 40 °C {72 °F}  and key is ON.

Diagnostic support note 

  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
  • PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • DTC is stored in PCM memory.
POSSIBLE CAUSE 
  • IAT sensor malfunction
  • Poor connection at MAF/IAT sensor or PCM connector
  • PCM malfunction
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.