Typical Malfunction Thresholds
WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
ECT SENSOR COLD START MONITOR:
| ECT sensor value change |
Less than 5°C (9°F) |
ECT SENSOR SOAK MONITOR:
| Difference between current ECT sensor value and previous ECT sensor value when engine stopped |
Less than 5°C (9°F) [varies with ECT of last trip engine stop] |