Diagnosis Procedure

DIAGNOSIS PROCEDURE CHART

Step	Action	YES	NO
1	CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect EVAP canister purge volume control solenoid valve harness connector. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 3. Turn ignition switch ON. 4. Check voltage between EVAP canister purge volume control solenoid valve terminal 1 and ground with SDT or tester. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Voltage: Battery voltage OK or NG	GO TO 3.	GO TO 2.
2	DETECT MALFUNCTIONING PART Check the following. Harness connectors E2, F32 Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R Harness for open or short between EVAP canister purge volume control solenoid valve and ECM	Repair harness or connectors.
3	CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 45 and EVAP canister purge volume control solenoid valve terminal 2. Refer to WIRING DIAGRAM . Continuity should exist. Also check harness for short to ground and short to power. OK or NG	GO TO 4.	GO TO 5.
4	CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION With SDT Reconnect all harness connectors disconnected. Start engine. Perform "PURG VOL CONT/V" in "Active test" mode with SDT. Check that engine speed varies according to the valve opening. OK or NG	GO TO 6.	GO TO 5.
5	CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE Refer to [P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE ]. OK or NG	GO TO 6.	Replace EVAP canister purge volume control solenoid valve. Refer to INTAKE MANIFOLD: EXPLODED VIEW .
6	CHECK INTERMITTENT INCIDENT Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]	INSPECTION END