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Home >> Toyota >> 2019 >> Sienna SE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Engine Control System [2GR-FE] - Diagnostic Codes (2 Of 3)) >> SFI System >> DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) [12/2015 - 08/2016] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
Monitor runs whenever following DTCs not stored None
Atmospheric pressure 70 kPa(abs) [525 mmHg(abs)] or more, and less than 110 kPa(abs) [825 mmHg(abs)]
Battery voltage 10.5 V or higher
Vehicle speed Less than 4 km/h (2.5 mph)
Ignition switch OFF
Time after key-off 5, 7 or 9.5 hours
Canister pressure sensor malfunction (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 following conditions met before-key off Conditions 1 and 2
1. Duration that vehicle is driven 5 minutes or more
2. EVAP purge operation Performed
Engine coolant temperature 4.4°C (40°F) or more, and less than 35°C (95°F)
Intake air temperature 4.4°C (40°F) or more, and less than 35°C (95°F)