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Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> 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

The monitor will run whenever these DTCs are not present None
Atmospheric pressure 70 to 110 kPa (525 to 825 mmHg)
Battery voltage 10 5 V or higher
Vehicle speed Less than 2 5 mph (4 km/h)
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 are met before key off Condition 1 and 2
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)

HINT:

"Saturated" indicates that the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) in 30 seconds.