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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System (SFI) - Diagnostics (2AZ-FE)) >> DTC P2421, P2422: Evaporative Emission System Check Valve Stuck >> OBDII Monitor Specification >> Monitor Strategy

Monitor Strategy

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MONITOR STRATEGY

Required Sensors/Components Purge VSV and pump module
Frequency of Operation Once per driving cycle
Duration Within 15 minutes (varies with amount of fuel in tank)
MIL Operation 2 driving cycles
Sequence Operation None