| DTC Strategy |
Case 1 |
- Skew Low Test: Monitors the difference between the startup coolant and IAT values
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- Poor Connection
- Open or short in harness
- IATS
- PCM
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| Case 2 |
- Skew High Test: Monitors the difference between the startup IAT and coolant values
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| Enable Conditions |
Case 1 |
- Engine soaked time
- 360min
- Engine running state
- No disabling faults present
- IAT stored previous trip
- IAT Skewed Test Not Complete
- Startup Coolant Temperature >-20°C
- Airflow >15 g/s
- Vehicle speed >40kph
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| Case 2 |
- Engine soaked time ≥ 360min
- Engine running state
- No disabling faults present
- IAT stored previous trip
- IAT Skewed Test Not Complete
- Airflow >15 g/s
- Vehicle speed >40kph
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| Threshold Value |
Case 1 |
- Startup Coolant - Startup IAT ≥ 30°C
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| Case 2 |
- Startup IAT - Startup Coolant ≥ 20°C
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| Diagnosis Time |
- Continuous (More than 1.25 second failure)
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| MIL On Condition |
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