Monitor Strategy
WARNING: This page is about a different car, the 2025 Toyota GR Corolla, 2024 Toyota GR Corolla, and 2023 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.
| Related DTCs | P0128: Coolant thermostat (judgement by simulated engine coolant temperature) P0128: Coolant thermostat (judgement by engine coolant temperature change at high vehicle speed) |
| Required Sensors/Components (Main) | Thermostat Engine coolant temperature sensor |
| Required Sensors/Components (Related) | Intake air temperature sensor (for mass air flow meter sub-assembly) Vehicle speed sensor |
| Frequency of Operation | Once per driving cycle: Judgment by simulated engine coolant temperature Continuous: Judgment by engine coolant temperature change at high vehicle speed |
| Duration | 405 seconds: Judgment by simulated engine coolant temperature -: Judgment by engine coolant temperature change at high vehicle speed |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |