EVAP Canister Purge Valve Inspection

With ignition switch OFF, disconnect coupler from canister purge valve.
Check resistance between two terminals of EVAP canister purge valve (1). If resistance is as specified, proceed to next operation check. If not, replace.
1. Resistance of EVAP canister purge valve: 28 - 35 ohm at 20 °C (68 °F)
Fig 1: Checking Resistance Between Terminals Of EVAP Canister Purge Valve
Courtesy of SUZUKI OF AMERICA CORP.
Disconnect vacuum hoses from intake manifold and its EVAP canister.
With coupler disconnected, blow into hose "A" (1). Air should not come out of hose "B" (2).

Fig 2: Blowing Into Hose
Courtesy of SUZUKI OF AMERICA CORP.
Connect 12 V-battery to EVAP canister purge valve (3) terminals. In this state, blow hose "A" (1).
Air should come out of hose "B" (2).

If check result is not as described, replace EVAP canister purge valve.

WARNING: Do not suck the air through valve. Fuel vapor inside valve is harmful.

Fig 3: Blowing Into Hose
Courtesy of SUZUKI OF AMERICA CORP.
Connect vacuum hoses.
Connect EVAP canister purge valve coupler securely.