| DTC Strategy |
- Coolant temperature too low for Lambda regulation
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- Contact resistance in connectors.
- Faulty cooling system.
- Faulty thermostat.
- Faulty ECT sensor.
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| Enable Conditions |
- Minimum time after engine start versus intake air temperature at start:
- 2 minutes for intake air temp. > 4°C (39°F)
- 5 minutes for -15°C (5°F) < intake air temp. <-4°C (25°F)
- 6 < Battery voltage (V) <16
- Elapsed time after Strat versus Engine coolant temperature at start:
- 2 minutes for coolant temp. > 4°C (39°F)
- 5 minutes for -15°C (5°F)< Intake air temp. <-4°C (25°F)
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| Threshold Value |
- Measured coolant temperature < 5°C(41°F) When modeled coolant temperature > 5°C(41°F)
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| Diagnostic Time |
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| Fall Safe |
- Calculated engine coolant temperature is used for engine control.
- Cooling/Condenser fan is active with MAX speed.
- EVAP. emission control function is controlled in minimum operation mode.
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