IAT1, CACT, IAT2 Out Of Range Hot Check
The IAT1, CACT, IAT2 are all checked for maximum expected temperature readings during a steady state driving condition. When parked at hot ambient temperatures or after heavy load operation, these temperatures can climb to unusually high temperatures thus the "too hot" check is not done at those conditions.
ENGINE AIR TEMPERATURE SENSOR OUT OF RANGE HOT CHECK
| DTCs | P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance (Bank 1) P007B Charge Air Cooler Temperature Sensor Circuit Range/Performance (Bank 1) P0096 Intake Air Temperature Sensor 2 Circuit Range/Performance (Bank 1) |
| Monitor execution | Continuous |
| Monitor Sequence | None |
| Sensors OK | ECT/CHT, IAT, VSS |
| Monitoring Duration | 250 seconds to register a malfunction |
ENGINE AIR TEMPERATURE SENSOR OUT OF RANGE HOT CHECK ENTRY CONDITIONS
| Entry condition | Minimum | Maximum |
| Vehicle speed | 40 mph | |
| Time above minimum vehicle speed (if driving req'd) | 5 min | |
| For IAT1, Load below a maximum load threshold | 1.0 |
TYPICAL ENGINE AIR TEMPERATURE SENSOR OUT OF RANGE HOT CHECK MALFUNCTION THRESHOLDS
| P0111 IAT1 > 150°F P007B CACT > 220°F P0096 IAT2 > 240°F |