Typical Enabling Conditions
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2024 Lexus IS 350, 2024 Lexus IS 300, 2023 Lexus IS 350, 2023 Lexus IS 300, and 2022 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
ALL
| Monitor runs whenever the following DTCs are not stored | None |
AFTER ENGINE STOP
| All of the following conditions are met | - |
| Time after engine start | 10 seconds or more |
| Battery voltage | 10.5 V or higher |
| Engine coolant temperature at internal engine off timer | -40°C (-40°F) or higher |
| Engine coolant temperature before engine stop | 70°C (158°F) or higher |
| Time that mass air flow is low before engine stop | 2100 seconds or more |
| Accumulated mass air flow amount before engine stop | 2940 g or more (for IS350 models) 2696 g or more (for IS300 models) |
| Key-off duration | 30 minutes |
| Mass air flow meter circuit fail (P0102, P0103) | Not detected |
| Intake air temperature sensor circuit fail (P0112, P0113) | Not detected |
| Engine coolant temperature sensor circuit fail (P0117, P0118) | Not detected |
| Soak timer fail (P2610) | Not detected |
AFTER COLD ENGINE START
| All of the following conditions are met | - |
| Key-off duration | 5 hours or more |
| Time after engine start | 10 seconds or more |
| Engine coolant temperature | 70°C (158°F) or higher |
| Accumulated mass air flow amount | 2940 g or more (for IS350 models) 2696 g or more (for IS300 models) |
| Either of the following conditions is met | 1 or 2 |
| 1. Duration while engine load is low | 120 seconds or more |
| 2. Duration while engine load is high | 10 seconds or more |
| Mass air flow meter circuit fail (P0102, P0103) | Not detected |
| Intake air temperature sensor circuit fail (P0112, P0113) | Not detected |
| Engine coolant temperature sensor circuit fail (P0117, P0118) | Not detected |
| Soak timer fail (P2610) | Not detected |