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Home >> Toyota >> 2009 >> Matrix Base, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System (2AZ-FE)) >> SFI System >> DTC P0455 Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456 Evaporative Emission Control System Leak Detected (Very Small Leak) >> Typical Enabling Conditions
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Typical Enabling Conditions

WARNING: This page is about a different variant/trim than selected.

P0455 (pattern A), P0456 

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs are not present None
EVAP key-off monitor runs when all of following conditions are met -
Atmospheric pressure 70 to 110 kPa-a (525 to 825 mmHg-a)
Battery voltage 10.5 V or more
Vehicle speed Below 2.5 mph (4 km/h)
Ignition switch OFF
Time after key off 5 or 7 or 9.5 hours
Canister pressure sensor malfunction (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 is 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) 

TYPICAL ENABLING CONDITIONS

Atmospheric pressure 70 to 110 kPa-a (525 to 825 mmHg-a)
Battery voltage 10.5 V or more
Vehicle speed Below 2.5 mph (4 km/h)
Ignition switch OFF
Canister pressure sensor malfunction (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
Engine coolant temperature 4.4 to 45°C (40 to 113°F)
Intake air temperature 4.4 to 45°C (40 to 113°F)