Typical Enabling Conditions
WARNING: This page is about a different variant/trim than selected.
P0455 (PATTERN A), P0456
| The monitor will run whenever these DTCs are not present | None |
| Atmospheric pressure | 70 to 110 kPa (525 to 825 mmHg) |
| Battery voltage | 10.5 V or more |
| Vehicle speed | Less than 2.5 mph (4 km/h) |
| Ignition switch | OFF |
| Time after key-off | 5 or 7 or 9.5 hours |
| Canister pressure sensor malfunction (P0452, P0453) | Not detected |
| EVAP canister purge valve | Not operated by scan tool |
| EVAP canister vent valve | Not operated by scan tool |
| EVAP leak detection pump | Not operated by scan tool |
| Both of the following conditions 1 and 2 are met before key-off | - |
| 1. Duration that vehicle driven | 5 minutes or more |
| 2. EVAP purge operation | Performed |
| Engine coolant temperature | 4.4 to 35°C (40 to 95°F) |
| Intake air temperature | 4.4 to 35°C (40 to 95°F) |
P0455 (PATTERN B)
| Atmospheric pressure | 70 to 110 kPa (525 to 825 mmHg) |
| Battery voltage | 10.5 V or more |
| Vehicle speed | Less than 2.5 mph (4 km/h) |
| Ignition switch | OFF |
| Canister pressure sensor malfunction (P0452, P0453) | Not detected |
| EVAP canister purge valve | Not operated by scan tool |
| EVAP canister vent valve | Not operated by scan tool |
| EVAP leak detection pump | Not operated by scan tool |
| Both of the following conditions 1 and 2 are met before key-off | - |
| 1. Duration that vehicle driven | 5 minutes or more |
| 2. EVAP purge operation | Performed |
| Engine coolant temperature | 4.4 to 35°C (40 to 95°F) |
| Intake air temperature | 4.4 to 35°C (40 to 95°F) |