| DTC Strategy |
|
- Poor connection
- Short to ground in harness
- IATS
- ECM
|
| Case 1 |
Enable Conditions |
- Engine operating state out of start
- Battery voltage is between 11V and 16V
- Engine Coolant Temperature (ECT) is greater than 74°C(165.2°F)
- Integrated mass air flow is greater than 9000
- Engine stop time is greater than 10m
- Difference between minimum and maximum amount of heat stored in intake manifold is greater than 200
|
| Threshold value |
- Intake air temperature signal variation is less than 1.5°C(34.7°F) since Engine Start
|
| Diagnosis Time |
|
| Case 2 |
Enable Conditions |
- Battery voltage is between 10V and 16V
|
| Threshold value |
- Difference between IAT and IAT moving mean value is greater than 8.25°C(46.85°F)
|
| Diagnosis Time |
|
| Case 3 |
Enable Conditions |
- Battery voltage is between 11V and 16V
- Engine Stop time is more than 480m
- ECT decrease in 15s after start is less than 2°C(35.6°F)
|
| Threshold value |
- Deviation between IAT and 2 other temperature sensors (ECT, AAT or EOT) is greater than 20°C(68°F) and Deviation among other temperature sensors (ECT, AAT, EOT) is less than 20°C(68°F)
|
| Diagnosis Time |
|
| MIL On Condition |
|