P0441

CIRCUIT DESCRIPTION



To reduce HC emissions evaporated fuel from the fuel tank is routed through the charcoal canister to the intake manifold for combustion in the cylinders. The Engine Control Module (ECM) changes the duty signal to the Vacuum Switch Valve (VSV) for EVAP so that the intake quantity of HC emissions is appropriate for the driving conditions (engine load, engine speed, etc.) after the engine is warmed up.






WIRING DIAGRAM

EVAP System Diagram:

INSPECTION PROCEDURE

LEXUS hand-held tester














OBD II scan tool (excluding LEXUS hand-held tester)