Typical Malfunction Thresholds
WARNING: This page is about a different car, the 2020 Toyota RAV4 and 2019 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
JUDGMENT BY SIMULATED ENGINE COOLANT TEMPERATURE
| Duration that both of the following conditions are met | 5 seconds or more |
| (a) Estimated engine coolant temperature | 75°C (167°F) or higher |
| (b) Engine coolant temperature sensor output | Less than 75°C (167°F) |
JUDGMENT BY ENGINE COOLANT TEMPERATURE AND NO. 2 ENGINE COOLANT TEMPERATURE CHANGES (W/ GRILLE SHUTTER SYSTEM)
| Engine coolant temperature change speed | Less than -0.4°C/sec (-0.72°F/sec), or higher than 0.15°C/sec (0.27°F/sec) |
| Engine coolant temperature | Less than 75°C (167°F) |
| Grade of engine coolant temperature - No. 2 engine coolant temperature | Higher than -0.1°C/sec (-0.18°F/sec), and less than 0.1°C/sec (0.18°F/sec) |
| Absolute engine coolant temperature - No. 2 engine coolant temperature | Less than 6.6°C (11.8°F) |
JUDGMENT BY ENGINE COOLANT TEMPERATURE CHANGE AT HIGH VEHICLE SPEED (W/O GRILLE SHUTTER SYSTEM)
| Malfunction counter | 3 times or more |
| Malfunction counter is incremented when following conditions are met | A and B |
| A. Average engine coolant temperature change (vary with current engine coolant temperature, estimated ambient air temperature, intake air mass and vehicle speed) | Less than 0.01°C/sec (0.018°F/sec) |
| B. Engine coolant temperature is satisfied throughout this period | Less than 75°C (167°F) |