Not Using Suzuki Scan Tool

1) Disconnect vacuum hoses from intake manifold and EVAP canister.





2) With ignition switch ON, blow into hose "A". Air should not come out of hose "B".





3) Using service wire, connect E33-25 terminal of ECM coupler and body ground with ignition switch OFF.
- Turn ON ignition switch.
- In this state, blow hose "A".
- Air should come out of hose "B".

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

If check results are as describe above and E33-25 terminal to ECM connection is OK, EVAP canister purge valve and its circuit are in good condition, connect vacuum hoses securely.
If not, proceed to step 4).





4) With ignition switch OFF, disconnect coupler from EVAP canister purge valve.
5) Check resistance between two terminals of EVAP canister purge valve.

Resistance of EVAP canister purge valve:
28 - 36 Ohms at 20°C (68°F)

If resistance is as specified, proceed to next operation check. If not, replace.





6) Disconnect vacuum hoses from intake manifold and EVAP canister.
7) With coupler disconnected, blow into hose "A". Air should not come out of hose "B".
If not, replace EVAP canister purge valve.





8) Connect 12V battery to solenoid purge valve terminals. In this state, blow hose "A".
Air should come out hose "B".

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

If check result is as specified above, check EVAP canister purge valve harness.
If not, replace EVAP canister purge valve.
9) Connect vacuum hoses.
10) Connect EVAP canister purge valve coupler securely.