Typical Enabling Conditions
WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL ENABLING CONDITIONS
| Monitor runs whenever these DTCs not present | - |
| Atmospheric pressure (absolute pressure) | 70 kPa (525 mmHg) or more, and less than 110 kPa (825 mmHg) |
| Battery voltage | 10.5 V or more |
| Vehicle speed | Below 4km/h (2.5 mph) |
| Ignition switch | OFF |
| Soak time (ignition switch OFF time) | 5, 7 or 9.5 hours |
| Engine coolant temperature | 4.4 to 35°C (40 to 95°F) |
| Intake air temperature | 4.4 to 35°C (40 to 95°F) |
| Canister pressure sensor malfunction (P0450, P0452, P0453) | Not detected |
| Purge valve | Not operated by scan tool |
| Vent valve | Not operated by scan tool |
| Leak detection pump | Not operated by scan tool |
| When both conditions below are met: | Condition 1 and 2 are met before key off |
| 1. Duration that vehicle has been driven | 5 minutes or more |
| 2. EVAP purge operation | Performed |
Key-off monitor sequence 1 to 6
1. Atmospheric pressure measurement
ATMOSPHERIC PRESSURE MEASUREMENT
| Next sequence is run if the following condition is met: | - |
| Atmospheric change for 10 seconds | Within 0.3 kPa (2.25 mmHg) in 1 second |
2. First reference pressure measurement
FIRST REFERENCE PRESSURE
| Next sequence is run if the following conditions are met: | - |
| EVAP pressure just after reference pressure measurement start | -1 kPa (-7.5 mmHg) or lower |
| Reference pressure | -4.3 to -1.2 kPa (-32.2 to -90 mmHg) |
| Reference pressure | Saturated within 60 seconds |
3. Vent valve stuck closed check
VENT VALVE STUCK CLOSED
| Next sequence is run if following condition is met | - |
| EVAP pressure change after vent valve is ON | 0.3 kPa (2.25 mmHg) or more |
4. Vacuum introduction
VACUUM INTRODUCTION
| Next sequence is run if following condition is met | - |
| EVAP pressure | Saturated within 12 minutes |
5. Purge VSV stuck closed check
PURGE VSV STUCK CLOSED
| Next sequence is run if following condition is met | - |
| EVAP pressure change after purge valve is open | 0.3 kPa (2.25 mmHg) or more |
6. Atmospheric pressure
ATMOSPHERIC PRESSURE
| EVAP monitor is complete if the following condition is met | - |
| Atmospheric pressure difference between sequence 1 and 6 | Within 0.3 kPa (2.25 mmHg) |