EVAP Canister Vent valve On-Vehicle Inspection

WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Do not apply vacuum hose directly to your mouth; otherwise harmful fuel vapor may be breathed in.

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.

With ignition mode of keyless push start system in "OFF", connect special tool between ECM and ECM connectors. For connecting procedure, refer to Step 1) and 2) of "Voltage Check" under INSPECTION OF ECM AND ITS CIRCUITS .
Check coil resistance of EVAP canister vent valve between "E01-1" terminal and "E01-59" terminal of ECM connector.
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 Connector Terminals (E01-1 And E01-59)
Courtesy of SUZUKI OF AMERICA CORP.

If resistance is as specified, proceed next step. If not, check wire harness and connections.

If check results of wire harness and connections are OK, replace EVAP leak check module and EVAP canister as assembly.
Disconnect filler pipe, purge pipe and suction pipe from EVAP leak check module and EVAP canister, see EVAPORATIVE EMISSION SYSTEM SMOKE TEST .
Blow compressed air (1) (2.0 kPa (0.02 kgf/cm² , 0.29 psi, 0.02 bar)) into air port (2). Air should come out of filler port (3) so purge port (4).
If air does not come out, replace EVAP leak check module and EVAP canister as assembly.

Fig 2: Identifying EVAP Leak Check Module And Blow Compressed Air
Courtesy of SUZUKI OF AMERICA CORP.
Close EVAP canister vent valve in EVAP leak check module as follows. If you have SUZUKI scan tool, perform step a). If not, perform step b).
1. Method using SUZUKI scan tool:
  1. With ignition mode of keyless push start system in "OFF", connect SUZUKI scan tool to DLC (1).
  2. Push engine switch to change ignition mode of keyless push start system to "ON".
  3. Select "Active Test" mode on SUZUKI scan tool.
  4. Close EVAP canister vent valve in EVAP leak check module by using SUZUKI scan tool.
    Special Tool
    1. SUZUKI scan tool (SUZUKI-SDT)
    Fig 3: Connecting Scan Tool To DLC
    Courtesy of SUZUKI OF AMERICA CORP.
2. b) Method without using SUZUKI scan tool:
  1. With ignition mode of keyless push start system in "OFF", connect special tool between ECM and ECM connectors. For connecting procedure, refer Step 1) and 2) of "Voltage Check" under INSPECTION OF ECM AND ITS CIRCUITS .
  2. Push engine switch to change ignition mode of keyless push start system to "ON".
  3. Use service wire to ground "E01-59" terminal of ECM connector (valve: close).
    
    Fig 4: Identifying E01-59 Connector Terminal
    Courtesy of SUZUKI OF AMERICA CORP.
Blow compressed air (1) (2.0 kPa (0.02 kgf/cm² , 0.29 psi, 0.02 bar)) into air port (2). Air should not come out filler port (3) and purge port (4).

Fig 5: Blowing Compressed Air Into Air Port
Courtesy of SUZUKI OF AMERICA CORP.

If check results are not as described above, check wire harness and connections.

If check results of wire harness and connections are OK, replace EVAP leak check module and EVAP canister as assembly.