Diagnosis Procedure

DIAGNOSIS PROCEDURE CHART

Step	Action	YES	NO
1	CHECK RUBBER TUBE Turn ignition switch OFF. Disconnect rubber tube connected to EVAP canister vent control valve (1). Courtesy of SUZUKI OF AMERICA CORP. EVAP control system pressure sensor (2) Drain filter (3) EVAP canister (4) <==: Vehicle front 3. Check the rubber tube for clogging. OK or NG	GO TO 2.	Clean rubber tube using an air blower.
2	CHECK EVAP CANISTER VENT CONTROL VALVE Refer to [Component Inspection ]. OK or NG	GO TO 3.	Replace EVAP canister vent control valve. Refer to EVAP CANISTER: REMOVAL AND INSTALLATION .
3	CHECK IF EVAP CANISTER IS SATURATED WITH WATER Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached. Does water drain from the EVAP canister? Courtesy of SUZUKI OF AMERICA CORP. Yes or No	GO TO 4.	GO TO 6.
4	CHECK EVAP CANISTER Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached. The weight should be less than 2.0 kg (4.4 lb). OK or NG	GO TO 6.	GO TO 5.
5	DETECT MALFUNCTIONING PART Check the following. EVAP canister for damage EVAP hose between EVAP canister and vehicle frame for clogging or poor connection	Repair hose or replace EVAP canister.
6	CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR Disconnect EVAP control system pressure sensor (2) harness connector. Courtesy of SUZUKI OF AMERICA CORP. EVAP canister vent control valve (1) Drain filter (3) EVAP canister (4) <==: Vehicle front 2. Check that water is not inside connectors. OK or NG	GO TO 7.	Replace EVAP control system pressure sensor. Refer to EVAP CANISTER: REMOVAL AND INSTALLATION .
7	CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR Refer to [P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR ]. OK or NG	GO TO 8.	Replace EVAP control system pressure sensor. Refer to EVAP CANISTER: REMOVAL AND INSTALLATION
8	CHECK INTERMITTENT INCIDENT Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]	INSPECTION END