| DTC Strategy |
Case1 |
|
- Poor connection or damaged harness
- Faulty ECT sensor
- Faulty cooling system
|
| Case2 |
|
| Case3 |
|
| Enable Conditions |
Case1 |
- No relevant failure
- 6V< Battery voltage
- Coolant temperature at Start < 76°C(169°F)
|
| Case2 |
- No relevant failure
- 11V< Battery voltage <16V
- Coolant temperature at Start >76°C(169°F)
- -10°C(14°F)< Intake air temperature <70°C(158°F)
- -10°C(14°F)< Ambient temperature
- More than 250 sec. (cumulative) Part Load driving condition(engine rpm >1400, vehicle speed >22 mph and MAF >20 kg/h)
- More than 200 sec. (cumulative) Low Load driving condition(trailing fuel cut off or idle with vehicle speed <12mph)
|
| Case3 |
- No relevant failure
- Oil temperature at engine stop of previous driving cycle >70°C(158°F)
- Coolant temperature at engine stop of previous driving cycle >70°C(158°F)
- Oil temperature at start <35°C(95°F)
- ntake air temperature at start <35°C(95°F)
|
| Threshold Value |
Case1 |
- Modeled coolant temperature increase > Threshold But measured coolant temperature increase
|
| Case2 |
- Coolant temperature signal variation since engine Start < 2.25 °C(4°F)
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| Case3 |
- Coolant temperature in start > 53 °C(127°F) (In case of coolant temperature> threshold but oil temperature & intake air temp < threshold)
|
| Diagnostic Time |
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| MIL On Condition |
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