SFI SYSTEM(w/ Canister Pump Module) EVAP System

RELATED DTCS

DTC No. SAE Code Monitoring Item Link
P017100 P0171 Purge VSV stuck open*

Click here

P043E00 P043E Reference orifice clogged (built into canister pump module)

Click here

P043F00 P043F Reference orifice high-flow (built into canister pump module)
P04419C P0441

  • Purge VSV (Vacuum Switching Valve) stuck closed

  • No. 1 check valve stuck closed

  • Purge flow

Click here

P04502F P0451 Canister pressure sensor (built into canister pump module) signal noise

Click here

P045011 P0452 Canister pressure sensor (built into canister pump module) voltage low
P045015 P0453 Canister pressure sensor (built into canister pump module) voltage high
P045500 P0455 EVAP gross leak

Click here

P045600 P0456 EVAP small leak
P148D7E P148D No. 1 check valve stuck open

Click here

P24007E P2402 Leak detection pump stuck on (built into canister pump module)

Click here

P24007F P2401 Leak detection pump stuck off (built into canister pump module)
P24187E P2419 Vent valve stuck closed (built into canister pump module)
P24187F P2420 Vent valve stuck open (vent) (built into canister pump module)

Click here

P261029 P2610 Soak timer (built into ECM)

Click here

P261093 P2610

*: If Purge VSV is stuck open, air is sucked in from Purge VSV, and the air fuel ratio becomes Lean and stores P017100.

If any EVAP system DTCs are output, the malfunctioning area can be determined using the table below.

B0077HDE01
B0077C7E01

Note

If the reference pressure difference between the first and second checks is more than the specification, all the DTCs relating to the reference pressure (P043E00, P043F00, P24007E, P24007F and P24187E) will all be stored.

DESCRIPTION

B007789C01
*1 Purge VSV *2 Fuel Vapor Feed Hose (EVAP Hose) (to Intake Manifold)
*3 Fuel Vapor Feed Hose (EVAP Hose) (from Canister) *4

Canister Pump Module

- Canister Pressure Sensor

- Leak Detection Pump

- Vent Valve
*5 Canister *6 Canister Filter
*7 Air Inlet Port *8 Fuel Tank Cap
*9 Fuel Tank *10 No. 1 Check Valve
*a Location of EVAP (Evaporative Emission) System *b Purge Line

Tech Tips

The canister pressure sensor, the leak detection pump and the vent valve are built into the canister pump module.

B0074L8C01
*1 Canister Pump Module *2 Intake Manifold
*3 Purge VSV *4 Throttle Valve
*5 Canister *6 Fuel Tank
*7 Air Cleaner *8 ECM
*9 Canister Filter *10 Soak Timer
*11 Roll-Over Valve *12 Fuel Tank Cap
*13 No. 1 Check Valve *14 Cut-off Valve
*a EVAP System Circuit - -

Note

In the EVAP system of this vehicle, turning on the vent valve does not seal off the EVAP system. To check for leaks in the EVAP system, disconnect the air inlet vent hose and apply pressure from the atmospheric side of the canister.

While the engine is running, if a predetermined condition (closed-loop, etc.) is met, the purge VSV is opened by the ECM and fuel vapors stored in the canister are purged to the intake manifold. The ECM changes the duty cycle ratio of the purge VSV to control purge flow volume.

The purge flow volume is also determined by the intake manifold pressure. Atmospheric pressure is allowed into the canister through the vent valve to ensure that the purge flow is maintained when negative pressure (vacuum) is applied to the canister.

The No. 1 check valve is used between the purge VSV and intake port to prevent intake air from flowing back toward the canister due to the turbo pressure.

The following two monitors run to confirm appropriate EVAP system operation.


  1. Key-off monitor

    This monitor checks for EVAP (evaporative emission) system leaks and canister pump module malfunctions. The monitor starts 5 hours* after the engine switch is turned off. At least 5 hours are required for the fuel to cool down to stabilize the EVAP pressure, thus making the EVAP system monitor more accurate.

    The leak detection pump creates negative pressure (vacuum) in the EVAP system and the pressure is measured. Finally, the ECM monitors for leaks from the EVAP system, and malfunctions in both the canister pump module and purge VSV based on the EVAP pressure.

    Tech Tips

    *: If the engine coolant temperature is not less than 35°C (95°F) 5 hours after the engine switch is turned off, the monitor check starts 2 hours later. If it is still not less than 35°C (95°F) 7 hours after the engine switch is turned off, the monitor check starts 2.5 hours later.

    Component Operation
    Canister Contains activated charcoal to absorb EVAP (Evaporative Emissions) generated in fuel tank.
    Cut-off valve Located in fuel tank. Valve floats and closes when fuel tank is 100% full.
    Purge VSV (Vacuum Switching Valve) Opens or closes line between canister and intake manifold. ECM uses purge VSV to control EVAP purge flow. In order to discharge EVAP absorbed by canister to intake manifold, ECM opens purge VSV. EVAP discharge volume to intake manifold controlled by purge VSV duty cycle (current-carrying time). (Open: on, Close: off)
    Roll-over valve Located in fuel tank. Valve closes by its own weight when vehicle overturns to prevent fuel from spilling out.
    Soak timer Built into ECM. To ensure accurate EVAP monitor, measures 5 hours (+/-15 min) after engine switch is turned off. This allows fuel to cool down, stabilizing EVAP pressure. When approximately 5 hours elapsed, ECM activates (refer to fig. 3).
    No. 1 check valve Prevents intake air from flowing back toward the canister due to the turbo pressure.
    Canister pump module Consists of (a) to (d) below. Canister pump module cannot be disassembled.
    (a) Vent valve Vents and closes EVAP system. When ECM turns valve on, EVAP system is closed. When ECM turns valve off, EVAP system is vented. Negative pressure (vacuum) is created in EVAP system to check for EVAP leaks by closing purge VSV, turning on vent valve (closing it) and operating leak detection pump (refer to fig. 1).
    (b) Canister pressure sensor Indicates pressure as voltages. ECM supplies regulated 5 V to pressure sensor, and uses feedback from sensor to monitor EVAP system pressure (refer to fig. 2).
    (c) Leak detection pump Creates negative pressure (vacuum) in EVAP system for leak check.
    (d) Reference orifice Has opening with 0.02 inch diameter. Vacuum is produced through orifice by closing purge VSV, turning off vent valve and operating leak detection pump, to monitor reference pressure. Reference pressure is used when checking for small EVAP leaks.
    B00753OC04
    *1 Canister *2 Reference Orifice (0.02 Inch)
    *3 Canister Pressure Sensor - -
    *a Canister Pump Module (fig. 1) *b Airflow
    *c Condition: Purge Flow *d Condition: Leak Check
    *e Vent Valve: Off (vent) *f to Canister Filter (Atmosphere)
    *g Leak Detection Pump: Off *h Vent Valve: On (closed)
    *i Leak Detection Pump: On - -
    B00735RE04
    B007573E08

WIRING DIAGRAM

Refer to DTC P045011.

Click here

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following procedure.

  • The GTS is required to conduct the following diagnostic troubleshooting procedure.

Tech Tips


  • Using the GTS monitor results enables the EVAP (Evaporative Emission) system to be confirmed.

  • Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

CONFIRMATION DRIVING PATTERN

Tech Tips

After a repair, check Monitor Status by performing the Key-Off Monitor Confirmation described below.


  1. KEY-OFF MONITOR CONFIRMATION

    Note


    • The Evaporative System Check (Automatic Mode) consists of 7 steps performed automatically by the GTS. It takes a maximum of approximately 24 minutes.

    • Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

    • Do not run the engine during this operation.

    • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG) and turn the GTS on.

    3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

    4. Turn the engine switch off and wait for at least 30 seconds.

    5. Turn the engine switch on (IG) and turn the GTS on.

    6. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.

    7. After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Utility / All Readiness.

    8. Input the DTC: P043E00, P043F00, P04502F, P045011, P045015, P045500, P045600, P148D7E, P24007E, P024007F, P24187E or P24187F.

    9. Check the DTC judgment result.

      GTS Display Description
      NORMAL

      • DTC judgment completed

      • System normal
      ABNORMAL

      • DTC judgment completed

      • System abnormal
      INCOMPLETE

      • DTC judgment not completed

      • Perform driving pattern after confirming DTC enabling conditions
      N/A

      • Unable to perform DTC judgment

      • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

      Tech Tips


      • If the judgment result shows NORMAL, the system is normal.

      • If the judgment result shows ABNORMAL, the system has a malfunction.

PROCEDURE


  1. CONFIRM DTC


    1. Turn the engine switch off and wait for 10 seconds.

    2. Turn the engine switch on (IG).

    3. Turn the engine switch off and wait for 10 seconds.

    4. Connect the GTS to the DLC3.

    5. Turn the engine switch on (IG) and turn the GTS on.

    6. Enter the following menus: Powertrain / Engine / Trouble Codes.

    7. Confirm DTCs and freeze frame data. If any EVAP system DTCs are stored, the malfunctioning area can be determined using the table below.


      Powertrain > Engine > Trouble Codes
      B0077HDE01
      B0077C7E01

      Note

      If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E00, P043F00, P24007E, P24007F and P24187E) are stored.

      Result
      Proceed to
      NEXT

    NEXT

  2. PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)

    Note


    • The Evaporative System Check (Automatic Mode) consists of 7 steps performed automatically by the GTS. It takes a maximum of approximately 24 minutes.

    • Do not perform the Evaporative System Check when the fuel tank is higher than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

    • Do not run the engine in this operation.

    • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the fuel temperature less than 35°C (95°F).


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the engine switch off and wait for at least 30 seconds.

    6. Turn the engine switch on (IG) and turn the GTS on.

    7. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.


      Powertrain > Engine > Utility
      Tester Display
      Evaporative System Check

    8. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine / Trouble Codes.

      Tech Tips

      If no pending DTCs are displayed, perform the Confirmation Driving Pattern. After this confirmation, check for pending DTCs. If no DTCs are displayed, the EVAP system is normal.


      Powertrain > Engine > Trouble Codes
      Result
      Proceed to
      NEXT

    NEXT

  3. PERFORM EVAP SYSTEM CHECK (MANUAL MODE)

    B0073WBE02

    Note


    • In the Evaporative System Check (Manual Mode), the series of 7 Evaporative System Check steps are performed manually using the GTS.

    • Do not perform the Evaporative System Check when the fuel tank is higher than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

    • Do not run the engine in this operation.

    • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the fuel temperature less than 35°C (95°F).


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the engine switch off and wait for at least 30 seconds.

    6. Turn the engine switch on (IG) and turn the GTS on.

    7. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Manual Mode.


      Powertrain > Engine > Utility
      Tester Display
      Evaporative System Check
      Result
      Proceed to
      NEXT

    NEXT

  4. PERFORM EVAP SYSTEM CHECK (STEP 1/7)


    1. Check the EVAP pressure in step 1/7.

      B0077OJE02
      Result
      DTC*1 Result Suspected Trouble Area Proceed to
      - Virtually no variation in EVAP pressure Not yet determined A
      P04502F EVAP pressure fluctuates by +/-0.3 kPa(gauge) [0.044 psi(gauge)] or higher Canister pressure sensor signal noise B
      (P045011 or P045015)*2

      • EVAP pressure is less than 42.11 kPa(abs) [6.11 psi(abs)], or higher than 123.761 kPa(abs) [17.95 psi(abs)]

      • EVAP pressure deviates +/-10 kPa(gauge) [1.45 psi(gauge)] from actual atmosphere pressure *3

      		 Canister pressure sensor or its circuit has malfunction C

      • *1: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.

      • *2: If the canister pressure sensor circuit has an open or short, DTC P045011 or P045015 is stored 0.5 seconds after the engine switch is turned on (IG).

      Tech Tips

      *3: Canister pressure sensor standard output range is 70 to 110 kPa(abs) [10.15 to 15.95 psi(abs)]. This varies by weather.


    B

    REPLACE CANISTER PUMP MODULE Click here

    C

    INSPECT CANISTER PUMP MODULE (CANISTER PRESSURE SENSOR CIRCUIT) Click here

    A

  5. PERFORM EVAP SYSTEM CHECK (STEP 1/7 TO 2/7)

    B0073JQE02

    1. Check the EVAP pressure in steps 1/7 and 2/7.

      Result
      DTC* Result Suspected Trouble Area Proceed to
      - Virtually no variation in EVAP pressure during step 1/7. Then decreases to reference pressure Not yet determined A
      P24007E Small difference between EVAP pressures during steps 1/7 and 2/7 Leak detection pump stuck ON B

      • *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.

      Tech Tips

      The first reference pressure is the value determined in step 2/7.


    B

    GO TO STEP 30 Click here

    A

  6. PERFORM EVAP SYSTEM CHECK (STEP 2/7)

    B00762TE02

    Tech Tips

    Make a note of the pressures checked in inspection items (A) and (B) below.


    1. Check the EVAP pressure 4 seconds after the leak detection pump is activated*1 (A).

      *1: The leak detection pump begins to operate as step 1/7 finishes and step 2/7 starts.

    2. Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure (B).

      Result
      DTC*2 Result Suspected Trouble Area Proceed to
      - EVAP pressure in inspection item (B) is between -4.85 kPa(gauge) and -1.068 kPa(gauge) [-0.703 psi(gauge) and -0.155 psi(gauge)] Not yet determined A
      P043F00 and P24007F EVAP pressure in inspection item (B) is -1.068 kPa(gauge) [-0.155 psi(gauge)] or higher

      • Reference orifice high-flow

      • Leak detection pump stuck OFF

      		 B
      P043E00 EVAP pressure in inspection item (B) is less than -4.85 kPa(gauge) [-0.703 psi(gauge)] Reference orifice clogged C
      P24187E EVAP pressure in inspection item (A) is higher than -0.3 kPa(gauge) [-0.044 psi(gauge)]

      • Vent valve stuck closed

      • Leak detection pump performance deteriorates

      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)

      		 D

      *2: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.


    B

    PERFORM EVAP SYSTEM CHECK (STEP 3/7) Click here

    C

    GO TO STEP 39 Click here

    D

    INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Click here

    A

  7. PERFORM EVAP SYSTEM CHECK (STEP 2/7 TO 3/7)

    B00747AE02

    1. Check the EVAP pressure in step 3/7.

      Result
      DTC* Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa(gauge) [0.044 psi(gauge)] or higher within 10 seconds of proceeding from step 2/7 to step 3/7 Not yet determined A
      P24187F No variation in EVAP pressure even after proceeding from step 2/7 to step 3/7

      • Vent valve stuck open (vent)

      • Canister (charcoal filter inside canister) clogged

      		 B

      *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.


    B

    INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) Click here

    A

  8. PERFORM EVAP SYSTEM CHECK (STEP 3/7)

    B00777OE02

    1. Wait until the EVAP pressure change is less than 0.12 kPa(gauge) [0.017 psi(gauge)] for 40 seconds.

    2. Measure the EVAP pressure and record it.

      Tech Tips

      A few minutes are required for the EVAP pressure to become saturated. When there is little fuel in the fuel tank, it takes up to 15 minutes.

      Result
      Proceed to
      NEXT

    NEXT

  9. PERFORM EVAP SYSTEM CHECK (STEP 4/7)

    B0077H5E02

    1. Check the EVAP pressure in step 4/7.

      Result
      DTC* Result Suspected Trouble Area Proceed to
      - Variation in EVAP pressure is 2.2 kPa(gauge) or less [0.319 psi(gauge)] for 20 seconds, after proceeding from step 3/7 to step 4/7 Not yet determined A
      P148D7E EVAP pressure increases by higher than 2.2 kPa(gauge) [0.319 psi(gauge)] within 20 seconds of proceeding from step 3/7 to step 4/7

      • No. 1 check valve

      • Problems in EVAP hose between No. 1 check valve and purge VSV

      		 B

      *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.


    B

    INSPECT NO. 1 CHECK VALVE Click here

    A

  10. PERFORM EVAP SYSTEM CHECK (STEP 5/7)

    B0073UXE05

    1. Check the EVAP pressure in step 5/7.

      Result
      DTC* Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa(gauge) [0.044 psi(gauge)] or higher within 10 seconds of proceeding from step 4/7 to step 5/7 Not yet determined A
      P24187E Variation in EVAP pressure is less than 0.3 kPa(gauge) [0.044 psi(gauge)] for 10 seconds, after proceeding from step 4/7 to step 5/7 Vent valve stuck closed B

      *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.


    B

    GO TO STEP 39 Click here

    A

  11. PERFORM EVAP SYSTEM CHECK (STEP 6/7)

    B0076NTE02

    1. Check the EVAP pressure in step 6/7.

    2. Compare the EVAP pressure in step 3/7 and the second reference pressure (step 6/7).

      Result
      DTC* Result Suspected Trouble Area Proceed to
      - EVAP pressure from step 3/7 lower than second reference pressure (step 6/7) Not yet determined (no leakage from EVAP system) A
      P045500 EVAP pressure from step 3/7 higher than [second reference pressure (step 6/7) x 0.2] EVAP gross leak B
      P045600 EVAP pressure from step 3/7 higher than second reference pressure (step 6/7) EVAP small leak

      *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.


    B

    INSPECT EVAP HOSE (PURGE VSV - CANISTER) Click here

    A

  12. REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS


    1. Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 41 Click here

  13. INSPECT EVAP HOSE (PURGE VSV - CANISTER)


    1. Check for leakages in the EVAP purge line between the purge VSV and canister.

      OK
      No leakages in the EVAP purge line between the purge VSV and canister.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE EVAP PURGE LINE (PURGE VSV - CANISTER) Click here

    OK

  14. CHECK FUEL TANK CAP ASSEMBLY


    1. Check that the fuel tank cap is correctly installed and confirm that the fuel tank cap meets OEM specifications.

    2. Tighten the fuel tank cap firmly (only one click sound could be heard).

      Tech Tips

      If an EVAP tester is available, check the fuel tank cap using the tester.


      1. Remove the fuel tank cap and install it onto a fuel tank cap adapter.

      2. Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa(gauge) [0.46 to 0.54 psi(gauge)] using an EVAP tester pump.

      3. Seal the adapter and wait for 2 minutes.

      4. Check the pressure. If the pressure is 2 kPa(gauge) [0.29 psi(gauge)] or higher, the fuel tank cap is normal.

      Result
      Test Result Suspected Trouble Area Proceed to
      Fuel tank cap correctly installed - A
      Fuel tank cap loose

      • Fuel tank cap improperly installed

      • Defective fuel tank cap

      • Fuel tank cap does not meet OEM specifications

      		 B
      Defective fuel tank cap -
      No fuel tank cap - C

    B

    CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY Click here

    C

    REPLACE FUEL TANK CAP ASSEMBLY Click here

    A

  15. LOCATE EVAP LEAK PART


    1. Disconnect the vent hose.

      B0075YXC01
      *1 Fuel Tank *2 Canister
      *3 Canister Filter *4 Fuel Tank Cap Assembly
      *5 Canister Pump Module - -
      *a Disconnect the vent hose - -

    2. Connect the EVAP pressure tester tool to the canister pump module with the adapter.

      B0077B0C01
      *1 Canister Pump Module *2 Adapter
      *3 EVAP Pressure Tester Tool - -

    3. Pressurize the EVAP system to 3.2 to 3.7 kPa(gauge) [0.46 to 0.54 psi(gauge)].

    4. Apply soapy water to the piping and connecting parts of the EVAP system.

    5. Look for areas where bubbles appear. This indicates the leak point.

    6. Repair or replace the leak point.

      Tech Tips

      Disconnect the hose between the canister and fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 41 Click here

  16. CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY

    Tech Tips


    • When reinstalling the fuel tank cap, tighten it firmly (only one click sound could be heard).

    • When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications, and install it firmly.

    Result
    Proceed to
    NEXT

    NEXT

    GO TO STEP 41 Click here

  17. REPLACE FUEL TANK CAP ASSEMBLY

    Tech Tips

    When installing the fuel tank cap, tighten it firmly (only one click sound could be heard).

    Result
    Proceed to
    NEXT

    NEXT

    GO TO STEP 41 Click here

  18. REPAIR OR REPLACE EVAP PURGE LINE (PURGE VSV - CANISTER)

    Result
    Proceed to
    NEXT

    NEXT

    GO TO STEP 41 Click here

  19. INSPECT NO. 1 CHECK VALVE


    1. Inspect the No. 1 check valve.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 CHECK VALVE Click here

    OK

  20. REPAIR OR REPLACE EVAP PURGE LINE (PURGE VSV - NO. 1 CHECK VALVE)

    Result
    Proceed to
    NEXT

    NEXT

    GO TO STEP 41 Click here

  21. REPLACE NO. 1 CHECK VALVE


    1. Replace the No. 1 check valve.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 41 Click here

  22. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE)

    B0073HWC11
    *a

    Front view of wire harness connector

    (to Canister Pump Module)

    1. Turn the engine switch off.

    2. Disconnect the canister pump module connector.

    3. Turn the engine switch on (IG).

    4. Measure the voltage according to the value(s) in the table below.

      Result
      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      U28-5 (VLVB) - Body ground Engine switch on (IG) 11 to 14 V

      • Wire harness or connector between vent valve and ECM

      • Vent valve

      • Canister (charcoal filter inside canister) clogged

      • ECM

      		 A
      Less than 3 V

      • Power source wire harness of vent valve

      		 B

    B

    GO TO STEP 38 Click here

    A

  23. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

    B0073LXC01
    *a

    Component without harness connected

    (Canister Pump Module)

    1. Turn the engine switch off.

    2. Disconnect the canister pump module connector.

    3. Apply the battery voltage to terminals VLVB and VGND of the pump module.

    4. Touch the canister pump module to confirm the vent valve operation.

      Result
      Condition Tester Result Suspected Trouble Area Proceed to
      Apply battery voltage to terminals VLVB and VGND Operating

      • Wire harness or connector between vent valve and ECM

      • Canister (charcoal filter inside canister) clogged

      • ECM

      		 A
      Not operating

      • Vent valve

      		 B

    B

    GO TO STEP 39 Click here

    A

  24. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)


    1. Turn the engine switch off.

    2. Disconnect the ECM connector.

    3. Disconnect the canister pump module connector.

    4. Measure the resistance according to the value(s) in the table below.

      Result
      Tester Connection Condition Test Result Suspected Trouble Area Proceed to
      U28-1 (VGND) - A91-7 (VPMP) Always Below 1 Ω

      • Canister (charcoal filter inside canister) clogged

      • ECM

      		 A
      10 kΩ or higher Wire harness or connector between ECM and canister pump module B

    B

    GO TO STEP 38 Click here

    A

  25. INSPECT CANISTER (CHARCOAL FILTER INSIDE CANISTER)


    1. Check for filter blockage in the canister.

      Click here

      OK
      No blockages in the canister.
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 37 Click here

    NG

  26. REPLACE CANISTER


    1. Replace the canister.

      Click here

      Note


      • When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose.

      • Check for filter blockage in the canister filter. if the canister filter has blockages, replace the canister filter.

      B0072SJC02
      *1 Fuel Tank Vent Hose *2 Air Inlet Port
      *3 Vent Hose *4 Fuel Tank
      *5 Canister Pump Module *6 Canister
      *7 Canister Filter - -
      *a

      Inspection Area

      (check for disconnection and/or cracks)

      		 - -
      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 41 Click here

  27. PERFORM EVAP SYSTEM CHECK (STEP 3/7)

    B0075JZE02

    1. Check the EVAP pressure in step 3/7.

      Result
      DTC* Result Suspected Trouble Area Proceed to
      P043F00 EVAP pressure less than [reference pressure] measured in step 2/7 Reference orifice high-flow A
      P24007F EVAP pressure almost same as [reference pressure] measured in step 2/7 Leak detection pump stuck off B

      *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.

      Tech Tips

      The first reference pressure is the value determined in step 2/7.


    A

    GO TO STEP 39 Click here

    B

  28. CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE)

    B0073HWC12
    *a

    Front view of wire harness connector

    (to Canister Pump Module)

    1. Turn the engine switch off.

    2. Disconnect the canister pump module connector.

    3. Turn the engine switch on (IG).

    4. Measure the voltage according to the value(s) in the table below.

      Result
      Tester Connection Condition Test Result Suspected Trouble Area Proceed to
      U28-3 (MTRB) - Body ground Engine switch on (IG) 9 to 14 V

      • Wire harness or connector between leak detection pump and body ground

      • Leak detection pump

      		 A
      Below 3 V

      • Wire harness or connector between leak detection pump and ECM

      • ECM

      		 B

    B

    CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Click here

    A

  29. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)


    1. Turn the engine switch off.

    2. Disconnect the canister pump module connector.

    3. Measure the resistance according to the value(s) in the table below.

      Result
      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      U28-4 (MGND) - Body ground Always Below 1 Ω Leak detection pump A
      10 kΩ or higher Wire harness or connector between canister pump module and body ground B

    A

    GO TO STEP 39 Click here

    B

    GO TO STEP 38 Click here

  30. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)


    1. Turn the engine switch off.

    2. Disconnect the canister pump module connector.

    3. Disconnect the ECM connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      U28-3 (MTRB) - A91-20 (MPMP) Always Below 1 Ω
      U28-3 (MTRB) or A91-20 (MPMP) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Result Suspected Trouble Area Proceed to
      OK ECM A
      NG Wire harness or connector between ECM and canister pump module B

    A

    GO TO STEP 37 Click here

    B

    GO TO STEP 38 Click here

  31. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

    B0073LXC01
    *a

    Component without harness connected

    (Canister Pump Module)

    1. Turn the engine switch off.

    2. Disconnect the canister pump module connector.

    3. Apply the battery voltage to terminals VLVB and VGND of the pump module.

    4. Touch the canister pump module to confirm the vent valve operation.

      Result
      Condition Test Result Suspected Trouble Area Proceed to
      Apply battery voltage to terminals VLVB and VGND Operating

      • Wire harness or connector between vent valve and ECM

      • Leak detection pump performance deteriorates

      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)

      • ECM

      		 A
      Not operating Vent valve B

    B

    GO TO STEP 39 Click here

    A

  32. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)


    1. Turn the engine switch off.

    2. Disconnect the ECM connector.

    3. Disconnect the canister pump module connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      U28-1 (VGND) - A91-7 (VPMP) Always Below 1 Ω
      U28-1 (VGND) or A91-7 (VPMP) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Result Suspected Trouble Area Proceed to
      OK

      • Leak detection pump performance deteriorates

      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)

      • ECM

      		 A
      NG Wire harness or connector between ECM and canister pump module B

    B

    GO TO STEP 38 Click here

    A

  33. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)


    1. Disconnect the canister pump module connector.

    2. Measure the resistance according to the value(s) in the table below.

      Result
      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      U28-4 (MGND) - Body ground Always Below 1 Ω

      • Canister pump module

      • Wire harness or connector between canister pump module and ECM

      • ECM

      		 A
      10 kΩ or higher Wire harness or connector between canister pump module and body ground B

    B

    GO TO STEP 38 Click here

    A

  34. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)


    1. Disconnect the canister pump module connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Result
      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      U28-3 (MTRB) - A91-20 (MPMP) Always Below 1 Ω

      • Canister pump module

      • ECM

      		 A
      10 kΩ or higher Wire harness or connector between ECM and canister pump module B

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    A

  35. REPLACE CANISTER PUMP MODULE


    1. Replace the canister pump module.

      Click here

      Note


      • When replacing the canister pump module, check the canister pump module interior, canister interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in the canister interior, replace canister and canister pump module together.

      • Check for filter blockage in the canister. If the charcoal filter inside the canister is clogged, replace the canister and canister pump module together.

      • Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter.

      B0072SJC02
      *1 Fuel Tank Vent Hose *2 Air Inlet Port
      *3 Vent Hose *4 Fuel Tank
      *5 Canister Pump Module *6 Canister
      *7 Canister Filter - -
      *a

      Inspection Area

      (check for disconnection and/or cracks)

      		 - -
      Result
      Proceed to
      NEXT

    NEXT

  36. PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)

    Note


    • The Evaporative System Check (Automatic Mode) consists of 7 steps performed automatically by the GTS. It takes a maximum of approximately 24 minutes.

    • Do not perform the Evaporative System Check when the fuel tank is higher than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

    • Do not run the engine in this step.

    • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the fuel temperature less than 35°C (95°F).


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.


      Powertrain > Engine > Utility
      Tester Display
      Evaporative System Check

    6. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine / Trouble Codes.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      EVAP system DTCs are output A

      No DTCs output

      (No pending DTCs output)

      		 B

    B

    END

    A

  37. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 41 Click here

  38. REPAIR OR REPLACE HARNESS OR CONNECTOR

    Result
    Proceed to
    NEXT

    NEXT

    GO TO STEP 41 Click here

  39. REPLACE CANISTER PUMP MODULE


    1. Replace the canister pump module.

      Click here

      Note


      • When replacing the canister pump module, check the canister pump module interior, canister interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in the canister interior replace the canister and canister pump module together.

      • Check for filter blockage in the canister. If the charcoal filter inside the canister is clogged, replace the canister and canister pump module together.

      • Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter.

      B0072SJC02
      *1 Fuel Tank Vent Hose *2 Air Inlet Port
      *3 Vent Hose *4 Fuel Tank
      *5 Canister Pump Module *6 Canister
      *7 Canister Filter - -
      *a

      Inspection Area

      (check for disconnection and/or cracks)

      		 - -
      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 41 Click here

  40. INSPECT CANISTER PUMP MODULE (CANISTER PRESSURE SENSOR CIRCUIT)


    1. Check the canister pressure sensor circuit, referring to DTC P045011 canister pressure sensor circuit procedure.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  41. PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE)

    Note


    • The Evaporative System Check (Automatic Mode) consists of 7 steps performed automatically by the GTS. It takes a maximum of approximately 24 minutes.

    • Do not perform the Evaporative System Check when the fuel tank is higher than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

    • Do not run the engine in this operation.

    • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the fuel temperature less than 35°C (95°F).


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the engine switch off and wait for at least 30 seconds.

    6. Turn the engine switch on (IG) and turn the GTS on.

    7. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.


      Powertrain > Engine > Utility
      Tester Display
      Evaporative System Check

    8. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine / Trouble Codes.


      Powertrain > Engine > Trouble Codes

      Tech Tips

      If no pending DTCs are found, the repair has been successfully completed.

      Result
      Proceed to
      NEXT

    NEXT

    END