Intake Air Temperature 1 Sensor (IAT1)
The Intake Air Temperature 1 sensor (also called Air Charge Temperature) is used for the inference of ambient temperature for several PCM strategy features. In previous designs, the Intake Air Temperature 1 sensor was physically integrated with the Mass Air Flow (MAF) sensor. In this design, the Intake Air Temperature 1 sensor is a stand-alone sensor and is mounted near the air cleaner.
INTAKE AIR TEMPERATURE 1 SENSOR CIRCUIT RANGE CHECK
| DTCs | P0112 Intake Air Temperature Sensor 1 Circuit Low (Bank 1) P0113 Intake Air Temperature Sensor 1 Circuit High (Bank 1) |
| Monitor execution | continuous |
| Monitor Sequence | none |
| Sensors OK | not applicable |
| Monitoring Duration | 5 seconds to register a malfunction |
TYPICAL INTAKE AIR TEMPERATURE 1 SENSOR CIRCUIT RANGE CHECK MALFUNCTION THRESHOLDS
| P0112 IAT1 voltage < 0.244 volts P0113 IAT1 voltage > 4.96 volts |
INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT INTERMITTENT CHECK
| DTCs | P0114 Intake Air Temperature Sensor 1 Intermittent/Erratic (Bank 1) |
| Monitor execution | continuous |
| Monitor Sequence | none |
| Sensors OK | not applicable |
| Monitoring Duration | counts intermittent events per trip |
TYPICAL AIR CHARGE TEMPERATURE SENSOR CHECK MALFUNCTION THRESHOLDS
| 10 intermittent out-of-range events per driving cycle |