Typical Enabling Conditions
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TYPICAL ENABLING CONDITIONS
| Monitor runs whenever following DTCs not present | None |
| EVAP key-off monitor runs when all of following conditions met | - |
| Atmospheric pressure | 70 to 110 kPa-a (525 to 825 mmHg-a) |
| Battery voltage | 10.5 V or more |
| Vehicle speed | Below 4 km/h (2.5 mph) |
| Ignition switch | OFF |
| Time after key off | 5 or 7 or 9.5 hours |
| Canister pressure sensor malfunction (P0450, P0451, P0452 and P0453) | Not detected |
| Purge VSV | Not operated by scan tool |
| Vent valve | Not operated by scan tool |
| Leak detection pump | Not operated by scan tool |
| Both of following conditions met before key off | Conditions 1 and 2 |
| 1. Duration that vehicle driven | 5 minutes or more |
| 2. EVAP purge operation | Performed |
| ECT | 4.4 to 35°C (40 to 95°F) |
| IAT | 4.4 to 35°C (40 to 95°F) |
- Key-off monitor sequence 1 to 8
- Atmospheric pressure measurement TYPICAL ENABLING CONDITIONS
Next sequence run if following condition set - Atmospheric pressure change Less than 0.3 kPa-g (2.25 mmHg-g) in 1 second - First reference pressure measurement TYPICAL ENABLING CONDITIONS
Next sequence run if all of following conditions set Condition 1, 2 and 3 1. EVAP pressure just after reference pressure measurement started -1 kPa-g (-7.5 mmHg-g) or less 2. Reference pressure -4.85 to -1.057 kPa-g (-36.4 to -7.93 mmHg-g) 3. Reference pressure Saturated within 60 seconds - Vent valve stuck closed check TYPICAL ENABLING CONDITIONS
Next sequence run if following condition set - EVAP pressure change after vent valve ON (closed) 0.3 kPa-g (2.25 mmHg-g) or more - Vacuum introduction TYPICAL ENABLING CONDITIONS
Next sequence run if following condition set - EVAP pressure Saturated within 15 minutes - Purge VSV stuck closed check TYPICAL ENABLING CONDITIONS
Next sequence run if following condition set - EVAP pressure change after purge VSV ON (open) 0.3 kPa-g (2.25 mmHg-g) or more - Second reference pressure measurement TYPICAL ENABLING CONDITIONS
Next sequence run if all of following conditions set Condition 1, 2, 3 and 4 1. EVAP pressure just after reference pressure -1 kPa-g (-7.5 mmHg-g) or less 2. Reference pressure -4.85 to -1.057 kPa-g (-36.4 to -7.93 mmHg-g) 3. Reference pressure Saturated within 60 seconds 4. Reference pressure difference between first and second Less than 0.7 kPa-g (5.25 mmHg-g) - Leak check TYPICAL ENABLING CONDITIONS
Next sequence run if following condition set - EVAP pressure when vacuum introduction complete Second reference pressure or less - Atmospheric pressure measurement TYPICAL ENABLING CONDITIONS
EVAP monitor complete if following condition set - Atmospheric pressure difference between sequence 1 and 8 Within 0.3 kPa-g (2.25 mmHg-g)
- Atmospheric pressure measurement