DTC Summary
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. 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 |
|---|---|---|---|---|---|---|
| P1422-00 | Evaporative Emission Fuel Tank (Small Leak) | Leak detection pump creates negative pressure (vacuum) in fuel tank and fuel tank pressure is measured. Reference pressure is measured at the start and at end of leak check. If stabilized pressure is higher than third reference pressure, ECM determines that fuel tank has a small leak. |
|
Comes on | DTC stored | SAE Code: P1422 |
| P1423-00 | Evaporative Emission Fuel Tank (Gross Leak) | Leak detection pump creates negative pressure (vacuum) in fuel tank and fuel tank pressure is measured. Reference pressure is measured at the start and at end of leak check. If stabilized pressure is higher than [third reference pressure x 0.2], ECM determines that fuel tank has a large leak. |
|
Comes on | DTC stored | SAE Code: P1423 |
| DTC No. | Monitoring Item | Detection Timing | Detection Logic | SAE Code |
|---|---|---|---|---|
| P1422-00 | Fuel tank small leak | EVAP monitoring (power switch off) |
2 trip | P1422 |
| P1423-00 | Fuel tank gross leak | P1423 |