Typical Enabling Conditions
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| Monitor runs whenever the following DTCs are not stored | None |
| All of the following conditions are met | - |
| Engine coolant temperature | 75°C (167°F) or higher |
| Intake air temperature (for mass air flow meter sub-assembly) | -10°C (14°F) or higher |
| Battery voltage | 11 V or higher |
| Atmospheric pressure | 76 kPa(abs) [11 psi(abs)] or higher |
| Engine switch | On (IG) |
| Time after engine start | 10 seconds or more |
| Intake air amount | 38 g/sec or more |
| Vacuum regulating valve current | 500 mA or higher |