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Inspection Procedure

NOTE: the Techstream is required to conduct the following diagnostic troubleshooting procedure.

HINT:

  1. CONFIRM DTC 
    1. Turn the ignition switch off and wait for 10 seconds.
    2. Turn the ignition switch on.
    3. Turn the ignition switch off and wait for 10 seconds.
    4. Connect the Techstream to the DLC3.
    5. Turn the ignition switch on and turn the tester 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 set, the malfunctioning area can be determined using the table below.

      Fig 1: Identifying DTC Malfunctioning Area Table
      G05553783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: If the 0.02 inch reference pressure difference between the first and second checks is greater than the specification, the DTCs corresponding to the reference pressure (P043E, P043F, P0441, P0455, P0456, P2401 and P2420) will all be stored.
  2. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) 
    NOTE:
    • In the Evaporative System Check (Automatic Mode), the series of 5 Evaporative System Check steps is performed automatically by the Techstream. It takes a maximum of approximately 15 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 and making the leak check of the fuel tank unavailable.
    • Do not run the engine in this step.
    • When the temperature of the fuel is 35°C (95°F) or more, 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. Connect the Techstream to the DLC3.
    2. Clear DTCs (See DTC CHECK/CLEAR  ).
    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
    4. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes.

      HINT:

      If no pending DTC is displayed, perform the CONFIRMATION DRIVING PATTERN after this repair is completed. After this confirmation, check for pending DTCs. If no DTC is displayed, the EVAP system is normal.

  3. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE) 
    NOTE:
    • In the Evaporative System Check (Manual Mode), the series of 5 Evaporative System Check steps is performed manually by 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 and making the leak check of the fuel tank unavailable.
    • Do not run the engine in this step.
    • When the temperature of the fuel is 35°C (95°F) or more, 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. Connect the Techstream to the DLC3.
    2. Clear DTCs (See DTC CHECK/CLEAR  ).
    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode.
      4. Fig 2: Identifying EVAP Pressure Graph (Manual Mode)
      G05553784Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/5) 
    1. Check the EVAP pressure in step 1/5.

      Result 

      RESULT REFERENCE TABLE

      DTCs(1) Test Results Suspected Trouble Areas Proceed to
      - Virtually no variation in EVAP pressure Not yet determined A
      P0451 EVAP pressure fluctuates by +/-0.3 kPa (2.25 mmHg) or more Canister pressure sensor noising B
      (1) The DTCs relating to the EVAP system displayed on the Techstream when checking.
      Fig 3: Identifying EVAP Pressure Graph (Step 1/5)
      G05553785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  30

    A: Go to Next Step. 

  5. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/5 TO 2/5) 
    1. Check the EVAP pressure in step 1/5 and 2/5.

      Result 

      RESULT REFERENCE TABLE

      DTCs(1) Test Results Suspected Trouble Areas Proceed to
      - Virtually no variation in EVAP pressure during step 1/5. Then decreases to 0.02 inch leak pressure standard(1) Not yet determined A
      P2402 Small difference between EVAP pressures during steps 1/5 and 2/5 Leak detection pump stuck ON B
      (1) The DTCs relating to the EVAP system are displayed on the Techstream when checking.

      HINT:

      The first 0.02 inch leak pressure standard is the value determined in step 2/5.

      Fig 4: Identifying EVAP Pressure Graph (Step 1/5 To 2/5)
      G05553786Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  23

    A: Go to Next Step. 

  6. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/5) 

    HINT:

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

    1. Check the EVAP pressure 4 seconds after the leak detection pump is activated*1 (Step a).
    2. Check the EVAP pressure again when it has stabilized. This pressure is the 0.02 inch leak pressure standard (Step b).

      *1: The leak detection pump begins to operate as step 1/5 is proceeded to step 2/5.

      Result 

      RESULT REFERENCE TABLE

      DTCs(1) Test Results Suspected Trouble Areas Proceed to
      - EVAP pressure in step (b) is between -4.85 kPa and -1.06 kPa (-36.38 mmHg and -7.95 mmHg) Not yet determined A
      P043F and P2401 EVAP pressure in step (b) is -1.06 kPa (-7.95 mmHg) or more
      • 0.02 inch orifice high-flow
      • Leak detection pump stuck OFF
      		 B
      P043E EVAP pressure in step (b) is below -4.85 kPa (-36.38 mmHg) 0.02 inch orifice clogged C
      P2419 EVAP pressure in step (a) is more than -1.06 kPa (-7.95 mmHg) Vent valve stuck closed D
      (1) The DTCs related to the EVAP system displayed on the Techstream when checking.
      Fig 5: Identifying EVAP Pressure Graph (Step 2/5)
      G05553787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  11

    C:  Go to step  30

    D:  Go to step  19

    A: Go to Next Step. 

  7. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/5 TO 3/5) 
    1. Check the EVAP pressure increase in step 3/5.

      Result 

      RESULT REFERENCE TABLE

      DTCs(1) Test Results Suspected Trouble Areas Proceed to
      - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more 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 malfunction C
      (1) The DTCs relating to the EVAP system displayed on the Techstream when checking.
      Fig 6: Identifying EVAP Pressure Graph (Step 2/5 To 3/5)
      G05553788Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  20

    C:  Go to step  30

    A: Go to Next Step. 

  8. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/5) 
    1. Wait until the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) 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.

      Fig 7: Identifying EVAP Pressure Graph (Step 3/5)
      G05553789Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 4/5) 
    1. Check the EVAP pressure in step 4/5.

      Result 

      RESULT REFERENCE TABLE

      DTCs(1) Test Results Suspected Trouble Areas Proceed to
      - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more 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 (2.25 mmHg) or more within 10 seconds of proceeding from step 3/5 to step 4/5 Problems in EVAP hose between pure VSV and intake manifold B
      P0441 Variation in EVAP pressure less than 0.3 kPa (2.25 mmHg) for 10 seconds, after proceeding from step 3/5 to step 4/5 Purge VSV stuck closed C
      (1) The DTCs relating to the EVAP system displayed on the Techstream when checking.
      Fig 8: Identifying EVAP Pressure Graph (Step 4/5)
      G05553790Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  15

    C:  Go to step  12

    A: Go to Next Step. 

  10. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 5/5) 
    1. Check the EVAP pressure in step 5/5.
      2. Fig 9: Identifying EVAP Pressure Graph (Step 5/5)
      G05553791Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Compare the EVAP pressure in step 3/5 and the second 0.02 inch leak pressure standard (step 5/5).

      Result 

      RESULT REFERENCE TABLE

      DTCs(1) Test Results Suspected Trouble Areas Proceed to
      - EVAP pressure (step 3/5) lower than second 0.02 inch leak pressure standard (step 5/5) Not yet determined (no leafage from EVAP system) A
      P0441 and P0455 EVAP pressure (step 3/5) higher than [second 0.02 inch leak pressure standard (step 5/5) x 0.2]
      • Purge VSV stuck open
      • EVAP gross leak
      		 B
      P0456 EVAP pressure (step 3/5) higher than second 0.02 inch leak pressure standard (step 5/5) EVAP small leak B
      (1) The DTCs relating to the EVAP system are displayed on the Techstream when checking.

    A: Go to step   36 

    B: Go to step   12 

  11. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/5) 
    Fig 10: Identifying EVAP Pressure Graph (Step 3/5)
    G05553792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/5.

      Result 

      RESULT REFERENCE TABLE

      DTCs(1) Test Results Suspected Trouble Areas Proceed to
      P043F EVAP pressure is less than [0.02 inch leak pressure standard] measured in step 2/5 0.02 inch orifice high-flow A
      P2401 EVAP pressure is almost the same as [0.02 inch leak pressure standard] measure in step 2/5 Leak detection pump stuck OFF B
      (1) The DTCs related to the EVAP system are displayed on the Techstream when checking.

      HINT:

      The first 0.02 inch leak pressure standard is the value determined in step 2/5.

    A:  Go to step  30

    B:  Go to step  23

  12. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) 
    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. On the tester, 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 tester, turn on the purge VSV (Activate the VSV for EVAP Control: ON).
    7. Use you finger to confirm that the purge VSV has suction.
      Fig 11: Identifying Purge VSV & Hose (Connected To Canister)
      G05553793Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE TABLE

      Test Results Suspected Trouble Areas 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 EVAP hose between purge VSV and throttle body
      		 C
    8. Reconnect the hose.

    B:  Go to step  14

    C:  Go to step  15

    A: Go to Next Step. 

  13. CHECK FUEL TANK CAP ASSEMBLY 
    1. Check that the fuel tank cap is correctly installed and confirm the fuel tank cap meets OEM specification.

      HINT:

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

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

        Result 

        RESULT REFERENCE TABLE

        Test Results Suspected Trouble Areas 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
        No fuel tank cap - C

    A:  Go to step  29

    B:  Go to step  27

    C:  Go to step  28

  14. INSPECT NO. 1 VACUUM SWITCHING VALVE 
    1. Turn the ignition switch off.
    2. Disconnect the B19 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 

      RESULT REFERENCE TABLE

      Test Results Suspected Trouble Areas Proceed to
      No suction ECM A
      Suction applied Purge VSV B
      Fig 12: Identifying Purge VSV & Hose (Connected To Canister)
      G05553794Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Reconnect the purge VSV connector.
    7. Reconnect the hose.

    A:  Go to step  35

    B:  Go to step  31

  15. CHECK EVAP HOSE (PURGE VSV - THROTTLE BODY) 
    1. Disconnect the hose (connected to the throttle body) from the purge VSV.
    2. Start the engine.
    3. Use your finger to confirm that the hose has suction.

      Result 

      RESULT REFERENCE TABLE

      Test Results Suspected Trouble Areas Proceed to
      Suction applied EVAP hose between purge VSV and throttle body normal A
      No suction
      • Throttle body
      • EVAP hose between purge VSV and throttle body
      		 B
      Fig 13: Identifying Purge VSV & Hose (Connected To Throttle Body)
      G05553795Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Reconnect the hose.

    B:  Go to step  26

    A: Go to Next Step. 

  16. INSPECT NO. 1 VACUUM SWITCHING VALVE (PURGE VSV) 
    1. Remove the purge VSV.
    2. Apply battery voltage to the terminals of the purge VSV.
    3. Using compressed air, confirm that air flows from port A to port B.

      Result 

      RESULT REFERENCE TABLE

      Test Results Suspected Trouble Area Proceed to
      Air flowed Purge VSV normal A
      No air flow Purge VSV B
    4. Install the purge VSV.
      Fig 14: Applying Battery Voltage To Purge VSV Terminals
      G05553796Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  31

    A: Go to Next Step. 

  17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) 
    1. Disconnect the V2 purge VSV connector.
    2. Turn the ignition switch on.
    3. Measure the voltage between terminal 1 of the purge VSV connector and the body ground.

      Result 

      VOLTAGE SPECIFICATION TABLE

      Test Results Suspected Trouble Areas Proceed to
      Between 11 V and 14 V Normal A
      Other than result above Wire harness or connectors between purge VSV and ECM B
    4. Reconnect the purge VSV connector.
      Fig 15: Identifying V2 Purge VSV Connector Terminals
      G05553797Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B: Go to step   32 

    A: Go to Next Step. 

  18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) 
    1. Disconnect the E4 ECM connector and the V2 purge VSV connector.
    2. Measure the resistance between the terminals of the purge VSV connector and ECM connector.

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE

      Tester Connections Specified Conditions
      E4-34 (PRG) - V2-2 Below 1 Ω
      E4-34 (PRG) - Body ground 10 kΩ or higher
      V2-1 - Body ground 10 kΩ or higher
    3. Reconnect the purge VSV connector.
    4. Reconnect the ECM connector.
      5. Fig 16: Identifying ECM & Purge VSV Connector Terminals
      G05553798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK:  Go to step  35

    NG:  Go to step  32

  19. PERFORM ACTIVE TEST USING TECHSTREAM (FOR VENT VALVE) 
    1. Turn the ignition switch on.
    2. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Vent Valve.
    3. Measure the voltage between terminal VPMP of the ECM connector and the body ground when the vent valve is turned ON (close) and OFF (vent) using the tester.

      Result 

      VOLTAGE SPECIFICATION TABLE

      Test Results Suspected Trouble Areas Proceed to
      Between 9 V and 14 V when OFF
      Below 3 V when ON      		 Vent valve A
      Below 3 V when OFF and ON ECM B
      Fig 17: Identifying E8 ECM Connector Terminals
      G05553799Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    A:  Go to step  22

    B:  Go to step  35

  20. PERFORM ACTIVE TEST USING TECHSTREAM (FOR VENT VALVE) 
    1. Turn the ignition switch on.
    2. Enter the following menus: Powertrain / Engine and ECT / Activate the VSV for Vent Valve.
    3. Measure the voltage between terminal VPMP of the ECM connector and the body ground when the vent valve is turned ON (close) and OFF (vent) using the tester.

      Result 

      VOLTAGE SPECIFICATION TABLE

      Test Results Suspected Trouble Areas Proceed to
      Between 3 V when OFF and ON Power source of vent valve A
      Between 9 V and 14 V when OFF
      Below 3 V when ON      		 Vent valve B
      Between 9 V and 14 V when OFF and ON ECM C
      Fig 18: Identifying A24 ECM Connector Terminals
      G05553800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  22

    C:  Go to step  35

    A: Go to Next Step. 

  21. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) 
    1. Turn the ignition switch off.
    2. Disconnect the L4 canister connector.
    3. Turn the ignition switch on.
    4. Measure the voltage between terminal 9 of the canister connector and the body ground.

      Result 

      VOLTAGE SPECIFICATION TABLE

      Test Results Suspected Trouble Areas Proceed to
      Between 9 V and 14 V Normal A
      Between 0 V and 3 V Power source wire harness of vent valve B
    5. Reconnect the canister connector.
      Fig 19: Identifying L4 Canister Connector
      G05553801Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  32

    A: Go to Next Step. 

  22. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) 
    1. Turn the ignition switch off.
    2. Disconnect the L4 canister connector.
    3. Apply the battery voltage to terminals 9 and 8 of the canister pump module.
    4. Touch the canister pump module to confirm the vent valve operation.

      Result 

      RESULT REFERENCE TABLE

      Test Results Suspected Trouble Areas Proceed to
      Operating Wire harness between vent valve and ECM A
      Not operating Vent valve B
      Fig 20: Identifying Canister Pump Module Terminals
      G05553802Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Reconnect the canister connector.

    A:  Go to step  32

    B:  Go to step  30

  23. PERFORM ACTIVE TEST USING TECHSTREAM (FOR CANISTER PUMP MODULE (LEAK DETECTION PUMP)) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch on and turn the tester on.
    3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump.
    4. Measure the voltage between terminal MPMP of the ECM connector and the body ground when the leak detection pump is turned ON and OFF using the tester.

      Result 

      VOLTAGE SPECIFICATION TABLE

      Test Results Suspected Trouble Areas Proceed to
      Between 0 V and 3 V when OFF
      Between 9 V and 14 V when ON      		 ECM normal A
      Between 9 V and 14 V when OFF
      Between 0 V and 3 V when ON      		 ECM B
      Fig 21: Identifying E8 ECM Connector Terminal
      G05553803Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  35

    A: Go to Next Step. 

  24. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch off.
    3. Disconnect the L4 canister connector.
    4. Turn the ignition switch on.
    5. Enter the following menus;: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump.
    6. Turn the leak detection pump ON.
    7. Measure the voltage between terminal 1 of the canister connector and the body ground.

      Result 

      VOLTAGE SPECIFICATION TABLE

      Test Results Suspected Trouble Areas Proceed to
      Between 9 V and 14 V Normal A
      Between 0 V and 3 V Wire harness between ECM and leak detection pump B
    8. Reconnect the canister connector.
      Fig 22: Identifying Canister Connector Terminals
      G05553804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B:  Go to step  32

    A: Go to Next Step. 

  25. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - GROUND) 
    1. Disconnect the L4 canister connector.
    2. Turn the ignition switch off.
    3. Check the resistance between terminal 6 of the canister connector and the body ground.

      Result 

      RESISTANCE SPECIFICATION TABLE

      Test Results Suspected Trouble Areas Proceed to
      Below 1 Ω Leak detection Pump A
      10 kΩ or higher Wire harness between leak detection pump and body ground B
    4. Reconnect the canister connector.
      Fig 23: Identifying L4 Canister Connector Terminals
      G05553805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    A:  Go to step  30

    B:  Go to step  32

  26. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY 
    1. Stop the engine.
    2. Disconnect the EVAP hose from the throttle body.
    3. Start the engine.
    4. Use your finger to confirm that the port of the throttle body has suction.

      Result 

      RESULT REFERENCE TABLE

      Test Results Suspected Trouble Areas Proceed to
      Suction applied EVAP hose between throttle body and purge VSV A
      No suction Throttle body B
    5. Reconnect the EVAP hose.

    A:  Go to step  33

    B:  Go to step  34

  27. CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP 

    HINT:

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

    NEXT:  Go to step  37

  28. REPLACE FUEL TANK CAP ASSEMBLY 

    HINT:

    When installing the fuel tank cap, tighten it until a few click sounds are heard.

    NEXT:  Go to step  37

  29. LOCATE EVAP LEAK 
    1. Disconnect the vent hose.
      Fig 24: Identifying Canister, Air Filter & Fuel Cap
      G05553806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the EVAP tester to the canister with the adapter.
      Fig 25: Identifying Canister, Air Filter & Pressure Gauge
      G05553807Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Pressurize the EVAP system by 3.2 to 3.7 kPa (24 to 28 mmHg).
    4. Apply soapy water to the piping and the connecting parts of the EVAP system.
    5. Look for areas where bubbles appear. This indicates leak point.
    6. Repair or replace the leak point.

    NEXT:  Go to step  37

  30. REPLACE CHARCOAL CANISTER ASSEMBLY 

    NEXT:  Go to step  37

  31. REPLACE NO. 1 VACUUM SWITCHING VALVE (PURGE VSV) 
    1. Disconnect the connector and 2 hoses from the purge VSV.
    2. Remove the purge VSV.
    3. Install a new purge VSV.
    4. Reconnect the connector and 2 hoses.
      5. Fig 26: Identifying Purge Vacuum Switching Valve
      G05553808Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NEXT:  Go to step  37

  32. REPAIR OR REPLACE HARNESS OR CONNECTOR 

    NEXT:  Go to step  37

  33. REPLACE EVAP HOSE (THROTTLE BODY - PURGE VSV) 

    NEXT:  Go to step  37

  34. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY 
    1. Remove the throttle body (See REMOVAL  ).
    2. Check that the EVAP purge port of the throttle body is not clogged. If necessary, replace the throttle body.

    NEXT:  Go to step  37

  35. REPLACE ECM 
    1. Replace the ECM (See REMOVAL  ).

    NEXT:  Go to step  37

  36. 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.
  37. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) 
    NOTE:
    • In the Evaporative System Check (Automatic Mode), the series of 5 Evaporative System Check steps are performed automatically by the Techstream. It takes a maximum of approximately 15 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 and making the leak check of the fuel tank unavailable.
    • Do not run the engine in this step.
    • When the temperature of the fuel is 35°C (95°F) or more, 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 the DTCs (See DTC CHECK/CLEAR  ).
    2. On the Techstream, 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 DTC is found, the repair has been successfully completed.

    NEXT: COMPLETED 

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