EVAP Canister Purge Valve Inspection

CAUTION: When checking EVAP canister purge valve, do not blow compressed air into inlet or outlet nozzle. Compressed air could damage EVAP canister purge valve.

With ignition switch OFF, disconnect coupler from canister purge valve.
Check resistance of EVAP canister purge valve. If resistance is as specified, proceed to next operation check. If not, replace.
Resistance of EVAP canister purge valve

Between two terminals: 30 - 34 ° at 20 °C (68 °F)

Between terminal and body: 1 M ohm or higher

Fig 1: Checking Resistance Of EVAP Canister Purge Valve
Courtesy of SUZUKI OF AMERICA CORP.
Disconnect vacuum hoses.
With coupler disconnected, apply vacuum to hose (2) using a special tool.
If vacuum can be applied, go to next step.

If not, replace EVAP canister purge valve.
Connect 12 V-battery to EVAP canister purge valve terminals. In this state, apply vacuum to hose (2) using a special tool.
If vacuum can not be applied, EVAP canister purge valve is in good condition.

If not, replace EVAP canister purge valve.

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

Special tool

(A): 09917-47911

Fig 2: Connecting 12 V-Battery To EVAP Canister Purge Valve Terminals

Courtesy of SUZUKI OF AMERICA CORP.