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Home >> Toyota >> 2009 >> Matrix Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2ZR-FE) >> SFI System >> DTC P2420 Evaporative Emission System Switching Valve Control Circuit High >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS CHART

Monitor runs whenever following DTCs 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 4 km/h (2.5 mph)
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 are 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 35°C (40 to 95°F)
Intake air temperature 4.4 to 35°C (40 to 95°F)