DTC Summary
WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P0455-00 | Evaporative Emission System Leak Detected (Large Leak) | Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure is measured. Reference pressure is measured at start and end of leak check. If stabilized pressure is higher than [second reference pressure x 0.2], ECM determines that EVAP system has a large leak. |
|
Comes on | DTC stored |
|
| P0456-00 | Evaporative Emission System Leak Detected (Very Small Leak) | Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure is measured. Reference pressure measured at start and end of leak check. If stabilized pressure is higher than second reference pressure, ECM determines that EVAP system has a small leak. |
|
Comes on | DTC stored |
|
| DTC No. | Monitoring Item | Detection Timing | Detection Logic | SAE |
|---|---|---|---|---|
| P0455-00 | EVAP gross leak | EVAP monitoring (engine switch off) |
2 trip | P0455 |
| P0456-00 | EVAP small leak | P0456 |