Malfunction Threshold
The engine running time before the engine coolant temperature [ECT SENSOR 1] reaches 10°F (-12°C), based on the initial engine coolant temperatures [ECT SENSOR 1], is as follows:
| Initial engine coolant temperature [ECT SENSOR 1] | Engine running time |
|---|---|
| -24°F (-31°C) | 5 minutes or more |
| 10°F (-12°C) | 1 minute or more |