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EC-294 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] P0448 EVAP CANISTER VENT CONTROL VALVE 8. If 1st trip DTC is detected, go to If 1st trip DTC is not detected, go to the next step. 9. Repeat next procedure 20 times. 10. Check 1st trip DTC. Diagnosis Procedure INFOID:0000000006158725 1. CHECK RUBBER TUBE 1. Turn ignition switch OFF. 2. Disconnect rubber tube connected to EVAP canister vent control valve (4). 3. Check the rubber tube for clogging. OK >> GO TO 2. NG >> Clean rubber tube using an air blower. 2. CHECK DRAIN FILTER EC-295, "Component Inspection" OK or NG OK >> GO TO 3. NG >> Replace drain filter. 3. CHECK EVAP CANISTER VENT CONTROL VALVE EC-295, "Component Inspection" OK or NG OK >> GO TO 4. NG >> Replace EVAP canister vent control valve. 4. CHECK IF EVAP CANISTER SATURATED WITH WATER 1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached. PBIB0972E 1 : Drain filter 2 : EVAP control system pressure sensor 3 : EVAP canister ALBIA0401ZZ |