EVAP Canister Vent Valve Check

CAUTION: When checking EVAP canister vent valve, do not apply compressed air. Compressed air could damage EVAP leak check module and cause fuel vapor leaks.

Hoist vehicle.
With ignition switch OFF, disconnect coupler from EVAP leak check module.
Check coil resistance of EVAP canister vent valve between terminal "6" and "7" in EVAP leak check module. If resistance is as specified, proceed to next step. If not, replace.
Coil resistance of EVAP canister vent valve

25 - 30 Ω at 20°C (68°F)

Fig 1: Checking Coil Resistance Of EVAP Canister Vent Valve Between Terminal 6 And 7
Courtesy of SUZUKI OF AMERICA CORP.
Remove EVAP leak check module (1) referring to EVAP LEAK CHECK MODULE REMOVAL AND INSTALLATION .
With coupler disconnected, blow breath (2) from port (3). Breath should come out of port (4). If not, replace EVAP leak check module.
Connect 12 V-battery to terminal "6" and terminal "7" of EVAP leak check module. In this state, blow breath from port (3).
Breath should not come out of port (4).

If check result is not specified above, replace EVAP leak check module.

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

CAUTION: Check to make sure that connection is made between correct terminals. Wrong connection can cause damage to EVAP canister vent valve in EVAP leak check module.

Fig 2: Identifying EVAP Leak Check Module, Ports, Terminals & Battery

Courtesy of SUZUKI OF AMERICA CORP.