Evaporative Emission (EVAP) Canister Vent Solenoid Inspection

1. Disconnect the electrical connector from the EVAP canister vent valve.
2. Using a DMM, measure the resistance of the EVAP canister vent valve between both terminals. The resistance should be 25 to 30 ohms at 20°C (68°F).
3. Replace the EVAP canister vent valve if the resistance is not 25 to 30 ohms at 20°C (68°F). If the resistance is within specification, proceed to Step 3.
4. Disconnect the EVAP canister vent valve hose from the EVAP canister.
5. Blow air into the vent valve hose that was disconnected from the EVAP canister. Air should pass through the EVAP canister vent valve.
6. Connect 12 volts DC to the terminals of the EVAP canister vent valve.
7. Blow air into the vent valve vacuum hose that was disconnected from the EVAP canister. Air should not pass through the vent valve and exit from the other end.
8. Replace the EVAP canister vent valve if the vent valve failed this inspection.
9. Connect the vent valve vacuum hoses and the electrical connector.