Typical Enabling Conditions
WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE COOLANT TEMPERATURE SENSOR COLD START MONITOR
| Monitor runs whenever following DTCs not present | None |
| Battery voltage | 10.5 V or more |
| Time after engine start | 1 second or more |
| Engine coolant temperature at engine start | Less than 60°C (140°F) |
| Engine coolant temperature sensor circuit | OK |
| Intake air temperature sensor circuit | OK |
| Thermostat | OK |
| Soak time | 0 sec or more |
| Accumulated mass air flow | Manual transaxle models: 825 g or more Automatic transaxle models: 1422 g or more |
| Fuel cut | Off |
| Difference between engine coolant temperature at engine start and intake air temperature | Less than 40°C (72°F) |
ENGINE COOLANT TEMPERATURE SENSOR SOAK MONITOR
| Monitor runs whenever following DTCs not present | None |
| Battery voltage | 10.5 V or more |
| Engine | Running |
| Engine coolant temperature sensor circuit | OK |
| Intake air temperature sensor circuit | OK |
| Thermostat | OK |
| Soak timer circuit | OK |
| Soak time | 5 hours or more |
| Either (a) or (b) condition met | - |
| (a) Engine coolant temperature | 60°C (140°F) or more |
| (b) Accumulated mass air flow | Manual transaxle models: 1661 g or more Automatic transaxle models: 3185 g or more |