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EVAP System: 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 Techstream to the DLC3.
    5. Turn the engine switch on (IG) and turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / 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.

      NOTE:

      If the reference pressure difference between the first and second checks is higher than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.

      Fig 1: EVAP DTC Identification Chart
      GTY234109Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NEXT: Go to next step 

  2. PERFORM EVAP SYSTEM CHECK (AUTOMATIC MODE) 
    NOTE:
    • The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 19 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. If the cut-off valve is closed, the fuel tank leak check is not possible.
    • 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 temperature below 35 °C (95 °F).
    1. Clear DTCs. Refer to DTC CHECK / CLEAR .
    2. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
    3. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

      HINT: 

      If no pending DTCs are output, perform the Monitor Confirmation (See "Diagnostic Help" menu). After this confirmation, check for pending DTCs. If no DTCs are output, the EVAP system is normal.

    NEXT: Go to next step 

  3. PERFORM EVAP SYSTEM CHECK (MANUAL MODE) 
    Fig 2: EVAP System Check Graph
    GTY219609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:
    • In the Evaporative System Check (Manual Mode), perform the series of 5 Evaporative System Check steps manually using the Techstream.
    • Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed. If the cut-off valve is closed, the fuel tank leak check is not possible.
    • 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 temperature below 35 °C (95 °F).
    1. Clear DTCs. Refer to DTC CHECK / CLEAR .
    2. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode.

    NEXT: Go to next step 

  4. PERFORM EVAP SYSTEM CHECK (STEP 1/5) 
    Fig 3: EVAP System Check Graph With Pressure Sensor Noise
    GTY213503Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 1/5.
      RESULT

      DTCs* Test Result Suspected Trouble Area Proceed to
      - Virtually no variation in EVAP pressure Not yet determined A
      P0451 EVAP pressure fluctuates by +/-0.3 kPa-g (+/-2.25 mmHg-g) or higher Canister pressure sensor noise B

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

    B → See step   29 

    A: Go to next step 

  5. PERFORM EVAP SYSTEM CHECK (STEP 1/5 TO 2/5) 
    Fig 4: EVAP System Check Graph With Leak Detection Pump Stuck On
    GTY184626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in steps 1/5 and 2/5.
      RESULT

      DTCs* Test Result Suspected Trouble Area Proceed to
      - Virtually no variation in EVAP pressure during step 1/5. Then decreases to reference pressure Not yet determined A
      P2402 Small difference between EVAP pressures during steps 1/5 and 2/5 Leak detection pump stuck ON B

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

      HINT: 

      The first reference pressure is the value determined in step 2/5.

    B → See step   22 

    A: Go to next step 

  6. PERFORM EVAP SYSTEM CHECK (STEP 2/5) 
    Fig 5: EVAP Pressure Graph (Step 2/5)
    GTY145422Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT: 

    Make a note of the pressures checked in steps (a) and (b) below.

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

      *: The leak detection pump begins to operate as step 1/5 finishes and step 2/5 starts.

    • (b) Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure.
      RESULT

      DTCs* Test Result Suspected Trouble Area Proceed to
      - EVAP pressure in step (b) between -4.85 kPa-g and -1.057 kPa-g (-36.4 mmHg-g and -7.93 mmHg-g) Not yet determined A
      P043F and P2401 EVAP pressure in step (b) -1.057 kPa-g (-7.93 mmHg-g) or higher
      • Reference orifice high-flow
      • Leak detection pump stuck OFF
      		 B
      P043E EVAP pressure in step (b) below -4.85 kPa-g (-36.4 mmHg-g) Reference orifice clogged C
      P2419 EVAP pressure in step (a) higher than -1.057 kPa-g (-7.93 mmHg-g) Vent valve stuck closed D

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

    D → See step   20 

    C → See step   29 

    B → See step   11 

    A: Go to next step 

  7. PERFORM EVAP SYSTEM CHECK (STEP 2/5 TO 3/5) 
    Fig 6: EVAP Malfunction Chart (Step 2/5 To 3/5)
    GTY145425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure increase in step 3/5.
      RESULT

      DTCs* Test Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or higher within 10 seconds of proceeding from step 2/5 to step 3/5 Not yet determined A
      P2420 No variation in EVAP pressure despite proceeding from step 2/5 to step 3/5 Vent valve stuck open (vent) B
      P0451 No variation in EVAP pressure during steps 1/5 through 3/5 Canister pressure sensor output value stuck C

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

    C → See step   29 

    B → See step   19 

    A: Go to next step 

  8. PERFORM EVAP SYSTEM CHECK (STEP 3/5) 
    Fig 7: EVAP System Graph - (Step 3/5)
    GTY132071Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Wait until the EVAP pressure change is below 0.1 kPa-g (0.75 mmHg-g) for 30 seconds.
    2. Measure the EVAP pressure and record it.

      HINT: 

      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.

    NEXT: Go to next step 

  9. PERFORM EVAP SYSTEM CHECK (STEP 4/5) 
    Fig 8: EVAP Pressure Graph (Step 4/5)
    GTY137029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 4/5.
      RESULT

      DTCs* Test Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or higher within 10 seconds of proceeding from step 3/5 to step 4/5 Not yet determined A
      P0441 EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or higher within 10 seconds of proceeding from step 3/5 to step 4/5 Problems in purge line between purge VSV and intake manifold B
      P0441 Variation in EVAP pressure below 0.3 kPa-g (2.25 mmHg-g) for 10 seconds, after proceeding from step 3/5 to step 4/5 Purge VSV stuck closed C

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

    C → See step   12 

    B → See step   15 

    A: Go to next step 

  10. PERFORM EVAP SYSTEM CHECK (STEP 5/5) 
    Fig 9: EVAP Pressure Graph (Step 5/5)
    GTY129812Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 5/5.
    2. Compare the EVAP pressure in step 3/5 and the second reference pressure (step 5/5).
      RESULT

      DTCs* Test Result Suspected Trouble Area Proceed to
      - EVAP pressure (step 3/5) below second reference pressure (step 5/5) Not yet determined (no leakage from EVAP system) A
      P0441 and P0455 EVAP pressure (step 3/5) higher than [second reference pressure (step 5/5) x 0.2]
      • Purge VSV stuck open
      • EVAP gross leak
      		 B
      P0456 EVAP pressure (step 3/5) higher than second reference pressure (step 5/5) EVAP small leak B

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

    B → See step   12 

    A → See step   35 

  11. PERFORM EVAP SYSTEM CHECK (STEP 3/5) 
    Fig 10: EVAP Pressure Graph (Step 3/5)
    GTY140260Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/5.
      RESULT

      DTCs* Test Result Suspected Trouble Area Proceed to
      P043F EVAP pressure less than [reference pressure] measured at 2/5 Reference orifice high-flow A
      P2401 EVAP pressure almost same as [reference pressure] measured at 2/5 Leak detection pump stuck OFF B

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

      HINT: 

      The first reference pressure is the value determined in step 2/5.

    B → See step   22 

    A → See step   29 

  12. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) 
    Fig 11: Identifying Hose From Purge VSV
    GTY128152Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for EVAP Control.
    2. Disconnect the hose (connected to the canister) from the purge VSV.
    3. Start the engine.
    4. Using the Techstream, turn off the purge VSV (Activate the VSV for EVAP Control: OFF).
    5. Use your finger to confirm that the purge VSV has no suction.
    6. Using the Techstream, turn on the purge VSV (Activate the VSV for EVAP Control: ON).
    7. Use your finger to confirm that the purge VSV has suction.
      RESULT

      Test Result Suspected Trouble Area Proceed to
      No suction when purge VSV turned off, and suction applied when turned on Purge VSV normal A
      Suction applied when purge VSV turned off Purge VSV stuck open B
      No suction when purge VSV turned on
      • Purge VSV stuck closed
      • Problems with purge line between purge VSV and intake manifold
      		 C

    C → See step   15 

    B → See step   14 

    A: Go to next step 

  13. CHECK FUEL CAP ASSEMBLY 
    1. Check that the fuel cap is correctly installed and confirm the fuel cap meets OEM specifications.
    2. Tighten the fuel cap until a few click sounds are heard.

      HINT: 

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

      1. Remove the fuel cap and install it onto a fuel cap adapter.
      2. Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa (24 to 28 mmHg) using an EVAP tester pump.
      3. Seal the adapter and wait for 2 minutes.
      4. Check the pressure. If the pressure is 2 kPa (15 mmHg) or higher, the fuel cap is normal.
      RESULT

      Test Result Suspected Trouble Area Proceed to
      fuel cap correctly installed - A
      fuel cap loose
      • fuel cap improperly installed
      • Defective fuel cap
      • fuel cap does not meet OEM specifications
      		 B
      Defective fuel cap - B
      No fuel cap - C

    C → See step   27 

    B → See step   26 

    A → See step   28 

  14. INSPECT PURGE VSV 
    Fig 12: Identifying Purge VSV
    GTY148593Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the C16 purge VSV connector.
    3. Disconnect the hose (connected to the canister) from the purge VSV.
    4. Start the engine.
    5. Use your finger to confirm that the purge VSV has no suction.
      RESULT

      Test Result Suspected Trouble Area Proceed to
      No suction ECM A
      Suction applied Purge VSV B

    B → See step   30 

    A → See step   34 

  15. CHECK PURGE LINE (PURGE VSV - INTAKE MANIFOLD) 
    Fig 13: Checking Purge Line (Purge VSV - Intake Manifold)
    GTY121692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the hose (connected to the intake manifold) from the purge VSV.
    2. Start the engine.
    3. Use your finger to confirm that the hose has suction.
      RESULT

      Test Result Suspected Trouble Area Proceed to
      Suction applied Purge line between purge VSV and intake manifold normal A
      No suction
      • Intake manifold port
      • Purge line between purge VSV and intake manifold
      		 B

    B → See step   25 

    A: Go to next step 

  16. INSPECT PURGE VSV 
    Fig 14: Applying Battery Voltage To Terminals Of Purge VSV
    GTY147587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the purge VSV. Refer to REMOVAL .
    2. Apply battery voltage to the terminals of the purge VSV.
    3. Using an air gun, confirm that air flows from port A to port B.
      RESULT

      Test Result Suspected Trouble Area Proceed to
      Air flows - A
      No air flow Purge VSV B

    B → See step   30 

    A: Go to next step 

  17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) 
    Fig 15: Identifying C16 Purge VSV Connector Terminals
    GTY147783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the C16 purge VSV connector.
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.
      RESULT

      Tester Connection Switch Condition Specified Condition Suspected Trouble Area Proceed to
      C16-1 - Body ground Engine switch on (IG) 11 to 14 V Normal A
      Engine switch on (IG) Other than condition above Wire harness or connectors between purge VSV and battery B

    B → See step   31 

    A: Go to next step 

  18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) 
    Fig 16: Identifying C53 ECM And C16 Purge VSV Connector Terminals
    GTY142334Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the C53 ECM connector and the C16 purge VSV connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C53-63 (PRG) - C16-2 Always Below 1 Ω
      C53-63 (PRG) - Body ground Always 10 kΩ or higher
      C16-2 - Body ground Always 10 kΩ or higher

    NG → See step   31 

    OK → See step   34 

  19. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) 
    Fig 17: Identifying M1 Canister Pump Module Connector Terminals
    GTY148678Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the M1 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 Switch Condition Specified Condition Suspected Trouble Area Proceed to
      M1-9 (VLVB) - Body ground Engine switch on (IG) 11 to 14 V
      1. Wire harness between vent valve and ECM
      2. Vent valve
      3. ECM
      		 A
      Engine switch on (IG) Below 3 V Power source wire harness of vent valve B

    B → See step   31 

    A: Go to next step 

  20. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) 
    Fig 18: Inspecting Canister Pump Module (Vent Valve Operation)
    GTY138694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the M1 canister pump module connector.
    3. Apply battery voltage to 9 (VLVB) and 8 (VGND) terminals of the canister pump module.
    4. Touch the canister pump module to confirm the vent valve operation.
      RESULT

      Test Result Suspected Trouble Area Proceed to
      Operating 1. Wire harness between vent valve and ECM
      2. ECM      		 A
      Not operating Vent valve B

    B → See step   29 

    A: Go to next step 

  21. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) 
    Fig 19: Identifying A38 ECM And M1 Canister Pump Module Connector Terminals
    GTY145693Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A38 ECM connector.
    2. Disconnect the M1 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
      A38-30 (VPMP) - M1-8 (VGND) Always Below 1 Ω ECM A
      Always 10 kΩ or higher Wire harness between ECM and canister pump module B

    B → See step   31 

    A → See step   34 

  22. PERFORM ACTIVE TEST USING TECHSTREAM (LEAK DETECTION PUMP [ALONE]) 
    Fig 20: Identifying M1 Canister Pump Module Connector Terminals
    GTY148679Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the M1 canister pump module connector.
    3. Turn the engine switch on (IG).
    4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump.
    5. Measure the voltage according to the value(s) in the table below.
      RESULT

      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      M1-1 (MTRB) - Body ground Leak detection pump turned on and off using the Techstream Below 3 V when OFF
      11 to 14 V when ON
      1. Wire harness between leak detection pump and body ground
      2. Leak detection pump
      		 A
      Leak detection pump turned on and off using the Techstream Below 3 V when OFF and ON
      1. Wire harness between leak detection pump and ECM
      2. ECM
      		 B
      Leak detection pump turned on and off using the Techstream 9 to 14 V when OFF and ON
      1. Wire harness between leak detection pump and ECM
      2. ECM
      		 B

    B → See step   24 

    A: Go to next step 

  23. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) 
    Fig 21: Identifying M1 Canister Pump Module Connector Terminals
    GTY142199Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the M1 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
      M1-6 (MGND) - Body ground Always Below 1 Ω Leak detection pump A
      Always 10 kΩ or higher Wire harness between canister pump module and body ground B

    B → See step   31 

    A → See step   29 

  24. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) 
    Fig 22: Identifying M1 Canister Pump Module And A38 ECM Connector Terminals
    GTY139239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the M1 canister pump module connector.
    3. Disconnect the A38 ECM connector.
    4. Measure the resistance according to the value(s) in the table below.
      RESULT

      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      A38-49 (MPMP) - M1-1 (MTRB) Always Below 1 Ω ECM A
      Always 10 kΩ or higher Wire harness between ECM and canister pump module B

    B → See step   31 

    A → See step   34 

  25. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) 
    1. Disconnect the purge line from the intake manifold.
    2. Start the engine.
    3. Use your finger to confirm that the port of the intake manifold has suction.
      RESULT

      Test Result Suspected Trouble Area Proceed to
      Suction applied Purge line between intake manifold and purge VSV A
      No suction Intake manifold B
    4. Reconnect the purge line.

    B → See step   33 

    A → See step   32 

  26. CORRECTLY REINSTALL OR REPLACE FUEL CAP 

    HINT: 

    • When reinstalling the fuel cap, tighten it until a few click sounds are heard.
    • When replacing the fuel cap, use a fuel cap that meets OEM specifications, and install and tighten it until a few click sounds are heard.

    NEXT → See step   36 

  27. REPLACE FUEL CAP 

    HINT: 

    When replacing the fuel cap, use a fuel cap that meets OEM specifications, and install and tighten it until a few click sounds are heard.

    NEXT → See step   36 

  28. LOCATE EVAP LEAK PART 
    Fig 23: Identifying Canister Pump, Filter And Vent Hose
    GTY148591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the vent hose.
    2. Connect an EVAP tester to the canister pump module with the adapter.
    3. Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).
    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.

      HINT: 

      Disconnect the hose between the canister and the 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.

    NEXT → See step   36 

  29. REPLACE CANISTER ASSEMBLY 
    1. Replace the canister assembly. Refer to REMOVAL .
      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.

      Fig 24: Identifying Fuel Tank Vent Hose Inspection Area
      GTY137466Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NEXT → See step   36 

  30. REPLACE PURGE VSV 
    1. Replace the purge VSV. Refer to REMOVAL .

    NEXT → See step   36 

  31. REPAIR OR REPLACE HARNESS OR CONNECTOR 

    NEXT → See step   36 

  32. REPLACE PURGE LINE (INTAKE MANIFOLD - PURGE VSV) 

    NEXT → See step   36 

  33. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) 
    1. Check that the EVAP purge port of the intake manifold is not clogged. If necessary, replace the intake manifold.

    NEXT → See step   36 

  34. REPLACE ECM 
    1. Replace the ECM. Refer to REMOVAL .

    NEXT → See step   36 

  35. 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.

    NEXT: Go to next step 

  36. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION) 
    NOTE:
    • The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 19 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. If the cut-off valve is closed, the fuel tank leak check is not possible.
    • 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 temperature below 35 °C (95 °F).
    1. Clear DTCs. Refer to DTC CHECK / CLEAR .
    2. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
    3. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

      HINT: 

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

    NEXT → COMPLETED 

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