Monitor Strategy
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
P0400
| Related DTC | P0400: EGR valve flow functional |
| Required Sensors/Components (Main) | EGR valve assembly Manifold absolute pressure sensor |
| Required Sensors/Components (Related) | Crankshaft position sensor Camshaft position sensor Vehicle speed sensor Engine coolant temperature sensor Mass air flow meter sub-assembly |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 5 seconds |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
P0401, P0402
| Related DTC | P0401: EGR valve low flow rate P0402: EGR valve high flow rate |
| Required Sensors/Components (Main) | EGR valve assembly Manifold absolute pressure sensor |
| Required Sensors/Components (Related) | Crankshaft position sensor Camshaft position sensor Vehicle speed sensor Engine coolant temperature sensor Mass air flow meter sub-assembly |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 5 seconds |
| MIL operation | 1 driving cycle |
| Sequence of operation | Stored when DTC P040000 is stored in the second trip |