| DTC Strategy |
|
- Poor connection
- Short to ground in harness
- IATS
- ECM
|
| Case1 |
Enable Condition |
- Engine operating state out of start
- Battery voltage is between 11V and 16V
- Engine coolant temperature 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
|
| Diagnostic Time |
|
| Case2 |
Enable Condition |
- 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)
|
| Diagnostic Time |
|
| Case3 |
Enable Condition |
- 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)
|
| Diagnostic Time |
|
| MIL ON Condition |
|