Typical Enabling Conditions
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
AFTER ENGINE STOP
| All of the following conditions are met | - |
| Time after hybrid system ready-to-drive | 10 seconds or more |
| Auxiliary battery voltage | 10.5 V or higher |
| Engine coolant temperature at ECM started by internal engine off timer | -40°C (-40°F) or higher |
| Engine coolant temperature before engine stop | 70°C (158°F) or higher |
| Time after engine stop | 120 seconds or more |
| Accumulated mass air flow amount | 2436 g or more |
| Key-off duration | 30 minutes |
| Intake air temperature sensor circuit fail (P0112, P0113) | Not detected |
| Engine coolant temperature sensor circuit fail (P0117, P0118) | Not detected |
| Mass air flow meter circuit fail (P0102, P0103) | Not detected |
| Soak timer fail (P2610) | Not detected |
| Engine coolant pump circuit fail (P26CA, P26CC, P26CD) | 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 | 2436 g or more |
| 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 |
| Intake air temperature sensor circuit fail (P0112, P0113) | Not detected |
| Engine coolant temperature sensor circuit fail (P0117, P0118) | Not detected |
| Mass air flow meter circuit fail (P0102, P0103) | Not detected |
| Soak timer fail (P2610) | Not detected |
| Engine coolant pump circuit fail (P26CA, P26CC, P26CD) | Not detected |