DTC P0111: Intake Air Temperature Circuit - Range/Performance Problem: Condition

DTC is set when variation in intake air temperature is less than predetermined after engine is at operating condition. DTC is also set when intake air temperature is 14°F (-10C°) or less or 158°F (70°C) or more. MIL is illuminated when Engine Control Module (ECM) detects malfunction during 2 consecutive drive cycles. Possible causes are:

• IAT sensor malfunction.
• ECM malfunction.