Typical Enabling Conditions
WARNING: This page is about a different car, the 2009 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL ENABLING CONDITIONS
| The monitor will run whenever the following DTCs are not present | None |
| Coolant heat storage system malfunction | Not detected |
| CHS water pump operation time | 3 seconds or more |
| Variation in CHS tank outlet temperature and engine coolant temperature before and after preheating | 2°C (3.6°F) or less |
| Storage coolant temperature | More than 65°C (149°F) |