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 test as specified, replace VSV.