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

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

• ECM malfunction.
• Intake Air Temperature (IAT) sensor malfunction.
• IAT sensor circuit malfunction (high resistance).