Typical Malfunction Thresholds
WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
Cold start monitor:
TYPICAL MALFUNCTION THRESHOLDS
| ECT change |
Less than 5°C (9°F) |
Soak monitor:
TYPICAL MALFUNCTION THRESHOLDS
| Difference between current ECT sensor value and previous ECT sensor value when engine stopped |
Less than 5°C (9°F) |