Typical Enabling Conditions
ENGINE COOLANT TEMPERATURE SENSOR RATIONALITY (COLD START MONITOR)
| Monitor runs whenever following DTCs are not present | None |
| Auxiliary battery voltage | 10.5 V or higher |
| Time after engine start | 1 second or more |
| Engine coolant temperature at engine start | Below 60°C (140°F) |
| Intake air temperature sensor circuit fail (P0112, P0113) | Not detected |
| Engine coolant temperature circuit fail (P0115, P0117, P0118, P0125) | Not detected |
| Engine water pump circuit fail (P261B, P261C, P261D) | Not detected |
| Thermostat fail (P0128) | Not detected |
| Soak time | 0 second or more |
| Accumulated mass air flow | 2401 g or more |
| Fuel cut | OFF |
| Difference between engine coolant temperature at engine start and intake air temperature | Below 40°C (72°F) |
ENGINE COOLANT TEMPERATURE SENSOR RATIONALITY (SOAK MONITOR)
| Monitor runs whenever following DTCs are not present | None |
| Auxiliary battery voltage | 10.5 V or higher |
| Engine | Running |
| Intake air temperature sensor circuit fail (P0112, P0113) | Not detected |
| Engine coolant temperature circuit fail (P0115, P0117, P0118, P0125) | Not detected |
| Thermostat fail (P0128) | Not detected |
| Engine water pump circuit fail (P261B, P261C, P261D) | Not detected |
| Soak timer circuit fail (P2610) | Not detected |
| Soak time | 5 hours or more |
| Either of the following condition (a) or (b) is met | - |
| (a) Engine coolant temperature | 60°C (140°F) or higher |
| (b) Accumulated mass air flow | 4284 g or more |