DTC P0111: Intake Air Temperature (IAT) Sensor Range/Performance Problem
- Turn ignition off. Disconnect IAT sensor 2-pin connector. Remove IAT sensor and reconnect 2-pin connector. Turn ignition on. Expose IAT sensor to ambient temperature and check with scan tool. If IAT sensor reading is ambient temperature, go to next step. If IAT sensor reading is not ambient temperature, replace IAT sensor.
- Using a hair dryer, warm IAT sensor. Check IAT sensor with scan tool. If indicated temperature increases 1.8°F (1°C) or more, problem is intermittent, system is okay at this time. If indicated temperature does not increase 1.8°F (1°C) or more, replace IAT sensor.