Typical Enabling Conditions
WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Purge VSV Stuck:
TYPICAL ENABLING CONDITIONS
| Enable conditions of EVAP key-OFF monitor | |
| P043E (Reference orifice - low flow) P043F (Reference orifice - high flow) P0441 (Purge VSV - stuck open) P0441 (Purge VSV - stuck close) P0451 (Canister pressure sensor - noise) P0455 (EVAP gross leak) P0456 (EVAP small leak) P2401 (Leak detection pump - stuck OFF) P2402 (Leak detection pump - stuck ON) P2419 (Vent valve - stuck ON) P2420 (Vent valve - stuck OFF) |
|
| Atmospheric pressure | 70 to 110 kPa-a (525 to 825 mmHg-a) |
| Battery voltage | 10.5 V or higher |
| Vehicle speed | 2.5 mph (4 km/h) or less |
| Ignition switch | OFF |
| Time after key off | 5 or 7 or 9.5 hours |
| Canister pressure sensor malfunction (P0450, P0452, 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 the following conditions 1 and 2 are met before key off | - |
| 1. Duration that vehicle has been 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 CHART
Next sequence is run if the following condition is met - Atmospheric pressure change Less than 0.3 kPa-g (2.25 mmHg-g) in 1 second - First reference pressure measurement TYPICAL ENABLING CONDITIONS CHART
Next sequence is run if the following conditions are met - EVAP pressure just after reference pressure measurement start -1 kPa-g (-7.5 mmHg-g) or lower Reference pressure -4.85 to -1.05 kPa-g (-36.4 to -7.93 mmHg-g) Reference pressure Saturated within 60 seconds - Vent valve stuck closed check TYPICAL ENABLING CONDITIONS CHART
Next sequence is run if the following condition is met - EVAP pressure change after vent valve is ON 0.3 kPa-g (2.25 mmHg-g) or more - Vacuum introduction TYPICAL ENABLING CONDITIONS CHART
Next sequence is run if the following condition is met - EVAP pressure Saturated within 15 minutes - Purge VSV stuck closed check TYPICAL ENABLING CONDITIONS CHART
Next sequence is run if the following condition is met - EVAP pressure change after purge valve is open 0.3 kPa-g (2.25 mmHg-g) or more - Second reference pressure measurement TYPICAL ENABLING CONDITIONS CHART
Next sequence is run if the following conditions are met - EVAP pressure just after reference pressure measurement start -1 kPa-g (-7.5 mmHg-g) or lower Reference pressure -4.85 to -1.05 kPa-g (-36.4 to -7.93 mmHg-g) Reference pressure Saturated within 60 seconds Difference between first reference pressure and second reference pressure Less than 0.7 kPa-g (5.25 mmHg-g) - Leak check TYPICAL ENABLING CONDITIONS CHART
Next sequence is run if the following condition is met - EVAP pressure when vacuum introduction is complete Lower than second reference pressure - Atmospheric pressure measurement
TYPICAL ENABLING CONDITIONS CHARTEVAP monitor is complete if the following condition is met - Atmospheric pressure difference between sequence 1 and 8 Within 0.3 kPa-g (2.25 mmHg-g) - Atmospheric pressure measurement