Canister Purge Vacuum Switching Valve (Swift DOHC)
- Turn ignition off. Using ohmmeter, check resistance between terminals of Vacuum Switching Valve (VSV) connector. If resistance is not 33-39 ohms, replace VSV. Disconnect vacuum hoses from VSV. Connect short section of hose to either port of VSV. Blow through hose. Air should not pass through VSV.
- Apply battery voltage to White/Blue wire terminal and ground to other wire terminal. Blow through hose. Air should pass through VSV. If VSV does not respond as described, repair ground circuit between VSV and ECM or replace VSV.