Typical Enabling Conditions
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
| 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 |
| Ignition switch | ON |
| Time after engine start | 1 second or more |
| Intake air amount | 35 g/sec or more |
| Vacuum regulating valve pressure | 0 kPa [0 psi] or higher |