Typical Enabling Conditions
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
| Ball valve position sensor fail (P16B6, P16B7) | Not detected |
| Water control valve motor fail (P16B2) | Not detected |
| Time that engine running time before engine stop | 60 seconds or more |
| Engine coolant temperature | -10°C (14°F) or higher |
| Auxiliary battery voltage | 10 V or higher |
| Water control valve stuck fail (P16B8) | Not detected |
| Ignition switch | Off |
| ECM started by soak-timer | No |