Air Temperature Sensor (Pickup 2.4L)
Faults in air temperature sensor circuit may set Code 41. To test system, see CODE 41 diagnostic procedures in TESTS W/CODES - 2.4L article.
To test sensor, disconnect sensor connector. Sensor is on air cleaner assembly. Measure resistance across sensor connector terminals. At 68°F (20°C), resistance should be about 2100-2900 ohms. At 176°F (80°C), resistance should be about 270-380 ohms. If resistance is not as specified, replace sensor.