Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect VIAS control solenoid valve harness connector. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 3. Turn ignition switch ON. 4. Check voltage between 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 VIAS control solenoid valve and IPDM E/R Harness for open or short between VIAS control solenoid valve and ECM	Repair harness or connectors.
3	CHECK VIAS CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 29 and VIAS 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.	Repair open circuit or short to ground or short to power in harness or connectors.
4	CHECK VIAS CONTROL SOLENOID VALVE Refer to [P1800 VIAS CONTROL SOLENOID VALVE 1 ]. OK or NG	GO TO 5.	Replace VIAS control solenoid valve.
5	CHECK INTERMITTENT INCIDENT Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]	INSPECTION END