Typical Malfunction Thresholds
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
Engine Coolant Temperature Sensor Output Stuck at Low Engine Coolant Temperature:
TYPICAL MALFUNCTION THRESHOLDS CHART
| Variation of engine coolant temperature | Less than 3°C (5.4°F) |
Engine Coolant Temperature Sensor Output Stuck at High Engine Coolant Temperature
TYPICAL MALFUNCTION THRESHOLDS CHART
| Variation of engine coolant temperature | 1°C (1.8°F) or less |