Malfunction Threshold
The engine running time before the engine coolant temperature [ECT Sensor 1] reaches 0 deg.F (-18 deg.C), based on the initial engine coolant temperatures [ECT Sensor 1], is as follows:
| Initial engine coolant temperature [ECT Sensor 1] | Engine running time |
|---|---|
| -55 deg.F (-48 deg.C) | 10 minutes or more |
| -35 deg.F (-37 deg.C) | 10 minutes or more |
| 0 deg.F (-18 deg.C) | 10 minutes or more |