| DTC Strategy |
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| DTC Strategy |
Case 1 |
- Engine speed higher than 640 to 960 RPM depending on start ECT
- Battery voltage higher than 11V and lower than 16V
- Engine Coolant Temperature (ECT) higher than 74°C
- Engine stop time higher than 10 minutes
- Difference between minute and max. amount of heat stored in intake manifold greater than 1000
|
- Poor connector connection
- Faulty IAT Sensor
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| Case 2 |
- Battery voltage higher than 6V and lower than 16V
|
| Case 3 |
- Battery voltage higher than 6 V and lower than 16V
- Engine stop time greater than 480 minutes
- ECT decrease in 15s after start less than 1.4°C
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| Threshold Value |
Case 1 |
- Intake air temperature signal variation since engine start less than 1.5° C
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| Case 2 |
- Deviation of IAT and IAT moving mean value more than 8.25°C (Noise Signal)
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| Case 3 |
- Deviation between IAT and 2 other temperature sensors (ECT, AAT or EOT) greater than 20°C
- Deviation among other temperature sensors (ECT, AAT, EOT) less than 20°C
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| Diagnostic Time |
Case 1 |
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| Case 2 |
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| Case 3 |
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| MIL ON Condition |
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