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Inspection Procedure

NOTE: The intelligent tester 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 intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
    5. Turn the ignition switch ON.
    6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II/DTC INFO / CURRENT CODES.
    7. Confirm DTCs and freeze frame data.

      If any EVAP system DTCs are set, the malfunctioning area can be determined using Fig 1 .

      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.
      Fig 1: DTC Table
      G04435412Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NEXT 

  2. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION) 
    NOTE:
    • In the EVAP SYSTEM CHECK (AUTO OPERATION), the series of 5 EVAP SYSTEM CHECK steps are performed automatically. It takes a maximum of approximately 18 minutes.
    • Do not perform the EVAP SYSTEM CHECK when the fuel tank is more than 90% full because the cut-off valve may be closed, making the leak check of the fuel tank not possible.
    • 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 EVAP SYSTEM CHECK, keep the temperature below 35°C (95°F).
    1. Clear the DTCs (see DTC CHECK/CLEAR ).
    2. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / AUTO OPERATION.
    3. After the EVAP SYSTEM CHECK is completed, check for pending DTCs by entering the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.

      HINT:

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

    NEXT 

  3. PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION) 
    Fig 2: Driving Pattern - EVAP System Check (Manual Operation)
    G04435413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:
    • In the EVAP SYSTEM CHECK (MANUAL OPERATION), the series of 5 EVAP SYSTEM CHECK steps are performed manually.
    • Do not perform the EVAP SYSTEM CHECK when the fuel tank is more than 90% full because the cut-off valve may be closed, making the leak check of the fuel tank not possible.
    • 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 EVAP SYSTEM CHECK, keep the temperature below 35°C (95°F).
    1. Clear the DTCs (see DTC CHECK/CLEAR ).
    2. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / MANUAL OPERATION.

    NEXT 

  4. PERFORM EVAP SYSTEM CHECK (STEP 1/5) 
    Fig 3: Driving Pattern - EVAP System Check (Step 1/5)
    G04435414Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 1/5.

      Result 

      RESULT

      DTC No. (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 related to the EVAP system are displayed on the intelligent tester when checking.

    B: Go to step   30 

    A: GO TO NEXT STEP 

  5. PERFORM EVAP SYSTEM CHECK (STEP 1/5 TO 2/5) 
    Fig 4: Driving Pattern - EVAP System Check (Step 1/5 To 2/5)
    G04435415Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 1/5 and 2/5.

      Result 

      RESULT

      DTC No. (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 criterion 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 related to the EVAP system are displayed on the intelligent tester when checking.

      HINT:

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

    B: Go to step   23 

    A: GO TO NEXT STEP 

  6. PERFORM EVAP SYSTEM CHECK (STEP 2/5) 
    Fig 5: Driving Pattern - EVAP System Check (Step 2/5)
    G04435416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    Make a note of the pressures checked in the steps below.

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

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

    2. Check the EVAP pressure again when it has stabilized.

      This pressure is the 0.02 inch leak criterion.

      Result 

      RESULT

      DTC No. (1) Test Results Suspected Trouble Areas Proceed to
      - EVAP pressure in step (b) 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) -1.06 kPa (-7.95 mmHg) or more
      • Reference orifice high-flow
      • Leak detection pump stuck OFF
      B
      P043E EVAP pressure in step (b) below -4.85 kPa (-36.38 mmHg) Reference orifice clogged C
      P2419 EVAP pressure in step (a) more than -1.06 kPa (-7.95 mmHg) Vent valve stuck closed D
      (1) The DTCs related to the EVAP system are displayed on the intelligent tester when checking.

    B: Go to step   11 

    C: Go to step   30 

    D: Go to step   19 

    A: GO TO NEXT STEP 

  7. PERFORM EVAP SYSTEM CHECK (STEP 2/5 TO 3/5) 
    Fig 6: Driving Pattern - EVAP System Check (Step 2/5 To 3/5)
    G04435417Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/5.

      Result 

      RESULT

      DTC No. (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 (stuck) C
      (1) The DTCs related to the EVAP system are displayed on the intelligent tester when checking.

    B: Go to step   20 

    C: Go to step   30 

    A: GO TO NEXT STEP 

  8. PERFORM EVAP SYSTEM CHECK (STEP 3/5) 
    Fig 7: Driving Pattern - EVAP System Check (Step 3/5)
    G04435418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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 900 seconds.

    NEXT 

  9. PERFORM EVAP SYSTEM CHECK (STEP 4/5) 
    Fig 8: Driving Pattern - EVAP System Check (Step 4/5)
    G04435419Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 4/5.

      Result 

      RESULT

      DTC No. (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 purge 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 related to the EVAP system are displayed on the intelligent tester when checking.

    B: Go to step   15 

    C: Go to step   12 

    A: GO TO NEXT STEP 

  10. PERFORM EVAP SYSTEM CHECK (STEP 5/5) 
    Fig 9: Driving Pattern - EVAP System Check (Step 5/5)
    G04435420Courtesy 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 0.02 inch leak criterion (step 5/5).

      Result 

      RESULT

      DTC No. (1) Test Results Suspected Trouble Areas Proceed to
      - EVAP pressure (step 3/5) lower than second 0.02 inch leak criterion (step 5/5) Not yet determined A
      P0441 and P0455 EVAP pressure (step 3/5) higher than [second 0.02 inch leak criterion (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 criterion (step 5/5) EVAP small leak C
      (1) The DTCs related to the EVAP system are displayed on the intelligent tester when checking.

    A : Go to step  36

    B : Go to step  12

  11. PERFORM EVAP SYSTEM CHECK (STEP 3/5) 
    Fig 10: Driving Pattern - EVAP System Check (Step 3/5)
    G04435421Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/5.

      Result 

      RESULT

      DTC No. (1) Test Results Suspected Trouble Areas Proceed to
      P043F EVAP pressure less than [0.02 inch leak criterion] measured at 2/5 Reference orifice high-flow A
      P2401 EVAP pressure almost same as [0.02 inch leak criterion] measured at 2/5 Leak detection pump stuck OFF B
      (1) The DTCs related to the EVAP system are displayed on the intelligent tester when checking.

      HINT:

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

    A: Go to step   30 

    B: Go to step   23 

  12. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (PURGE VSV) 
    1. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / EVAP VSV.
    2. Disconnect the hose (connected to the canister) from the purge VSV.
    3. Turn the ignition switch ON.
    4. Using the tester, turn the purge VSV OFF.
    5. Use your finger to confirm that the purge VSV has no suction.
    6. Using the tester, turn the purge VSV ON.
    7. Use your finger to confirm that the purge VSV has suction.
      Fig 11: Disconnecting Hose From Purge VSV
      G04435422Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      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 intake manifold
      C

    B: Go to step   14 

    C: Go to step   15 

    A: GO TO NEXT STEP 

  13. CHECK FUEL CAP 
    1. Check that the fuel cap is correctly installed.
      1. Tighten the fuel cap until a few click sounds are heard.

        HINT:

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

    2. Remove the fuel cap and install it onto the fuel cap adaptor.
    3. Connect an EVAP tester pump hose to the adaptor, and pressurize the cap to 3.2 to 3.7 kPa (24 to 28 mmHg) using an EVAP tester pump.
    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 cap is normal.

      Result 

      RESULT

      Test Results Suspected Trouble Areas 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
      No fuel cap - C

    A: Go to step   29 

    B: Go to step   27 

    C: Go to step   28 

  14. INSPECT PURGE VSV 
    1. Turn the ignition switch OFF.
    2. Disconnect the V4 purge VSV connector.
    3. Disconnect the hose (connected to the canister) from the purge VSV.
    4. Turn the ignition switch ON.
    5. Start the engine.
    6. Use your finger to confirm that the purge VSV has no suction.
      Fig 12: Inspecting Purge VSV
      G04435423Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      Test Results Suspected Trouble Areas Proceed to
      No suction ECM A
      Suction applied Purge VSV B

    A: Go to step   35 

    B: Go to step   31 

  15. CHECK EVAP HOSE (PURGE VSV - INTAKE MANIFOLD) 
    1. Disconnect the hose (connected to the intake manifold) from the purge VSV.
    2. Turn the ignition switch ON.
    3. Start the engine.
    4. Use your finger to confirm that the hose has suction.
      Fig 13: Disconnecting Hose From Purge VSV
      G04435424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      Test Results Suspected Trouble Areas Proceed to
      Suction applied EVAP hose between purge VSV and intake manifold normal A
      No suction
      • Intake manifold port
      • EVAP hose between purge VSV and intake manifold
      B

    B: Go to step   26 

    A: GO TO NEXT STEP 

  16. INSPECT DUTY PURGE VSV 
    1. Remove the purge VSV connector.
    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.
      Fig 14: Inspecting Duty Purge VSV
      G04435425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      Test Results Suspected Trouble Areas Proceed to
      Air flows Purge VSV normal A
      No air flows Purge VSV B

    B: Go to step   31 

    A: GO TO NEXT STEP 

  17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) 
    1. Disconnect the V4 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.
      Fig 15: Identifying V4 Purge VSV Connector Terminals
      G04435426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      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

    B: Go to step   32 

    A: GO TO NEXT STEP 

  18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) 
    1. Disconnect the V4 purge VSV connector.
      Fig 16: Disconnecting V4 Purge VSV Connector
      G04435427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the E5 ECM connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      V4-1 - E5-34 (PRG) Below 1 Ω
      V4-1 or E5-34 (PRG) - Body ground 10 kΩ or higher

    OK: Go to step   35 

    Fig 17: Disconnecting E5 ECM Connector
    G04435428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   32 

  19. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FOR VENT VALVE) 
    1. Turn the ignition switch ON.
    2. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VENT VALVE (ALONE).
    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.
      Fig 18: Inspecting ECM Connector
      G04435429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      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

    A: Go to step   22 

    B: Go to step   35 

  20. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FOR VENT VALVE) 
    1. Turn the ignition switch ON.
    2. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VENT VALVE (ALONE).
    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.
      Fig 19: Identifying E9 Connector Terminals
      G04435430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      Test Results Suspected Trouble Areas Proceed to
      Below 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

    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 L5 canister connector.
    3. Turn the ignition switch ON.
      Fig 20: Disconnecting L5 Canister Connector
      G04435431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Measure the voltage between terminal 9 of the canister connector and the body ground.
      Fig 21: Identifying Canister Connector Terminals
      G04435432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      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

    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 L5 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.
      Fig 22: Inspecting Canister Pump Module (Vent Valve Operation)
      G04435433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      Test Results Suspected Trouble Areas Proceed to
      Operating Wire harness between vent valve and ECM A
      Not operating Vent valve B

    A: Go to step   32 

    B: Go to step   30 

  23. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FOR CANISTER PUMP MODULE [LEAK DETECTION PUMP]) 
    1. Enter the following menus: DIAGNOSIS/ENHANCED OBD II/ACTIVE TEST/VACUUM PUMP (ALONE).
    2. Measure the voltage between MPMP terminal of the ECM connector and the body ground when the leak detection pump is turned ON and OFF using the tester.
      Fig 23: Identifying ECM Connector
      G04435434Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      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

    B: Go to step   35 

    A: GO TO NEXT STEP 

  24. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 
    1. Turn the ignition switch OFF.
    2. Disconnect the L5 canister connector.
    3. Turn the ignition switch ON.
    4. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP (ALONE).
    5. Turn the leak detection pump ON.
      Fig 24: Disconnecting L5 Canister Connector
      G04435435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Measure the voltage between terminal 1 of the canister connector and the body ground.

      Result 

      Fig 25: Identifying Canister Connector Terminals
      G04435436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      RESULT

      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

    B: Go to step   32 

    A: GO TO NEXT STEP 

  25. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - GROUND) 
    1. Disconnect the L5 canister connector.
    2. Turn the ignition switch OFF.
    3. Measure the resistance of the wire harness side connectors between terminal 6 of the canister connector and the body ground.
      Fig 26: Disconnecting L5 Canister Connector
      G04435437Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT

      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

    A: Go to step   30 

    B: Go to step   32 

  26. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) 
    1. Turn the ignition switch OFF.
    2. Disconnect the EVAP hose from the intake manifold.
    3. Turn the ignition switch ON.
    4. Use your finger to confirm that the port of the intake manifold has suction.

      Result 

      RESULT

      Test Results Suspected Trouble Areas Proceed to
      Suction applied EVAP hose between intake manifold and purge VSV A
      No suction Intake manifold B

    A: Go to step   33 

    B: Go to step   34 

  27. 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 tighten it until a few click sounds are heard.

    NEXT: Go to step   37 

  28. REPLACE FUEL CAP 

    HINT:

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

    NEXT: Go to step   37 

  29. REPAIR EVAP LEAKING PART 
    1. Reinstall the fuel cap.
    2. Using SST, pinch the atmospheric side hose of the canister pump module to close the canister passage to air.
    3. Connect a pressure gauge (SST) to the service port (green cap near the air cleaner box).
      Fig 27: Pinching Atmospheric Side Hose Of Canister Pump Module
      G04435438Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).
    5. Apply soapy water to the piping and connecting parts of the EVAP system. Look for areas where bubbles appear. This indicates leaking parts.
    6. Repair or replace leaking part.

      HINT:

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

      Fig 28: Connecting Pressure Gauge (SST) To Service Port
      G04435439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NEXT: Go to step   37 

  30. REPLACE CANISTER ASSEMBLY 

    NEXT: Go to step   37 

  31. REPLACE DUTY PURGE VSV 
    1. Disconnect the connector and hoses from the purge VSV.
    2. Remove the purge VSV.
    3. Install a new purge VSV.
    4. Reconnect the connector and hose.

    NEXT: Go to step   37 

    Fig 29: Removing Purge VSV
    G04435440Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. REPAIR OR REPLACE HARNESS AND CONNECTOR 

    NEXT: Go to step   37 

  33. REPLACE EVAP HOSE (INTAKE MANIFOLD - PURGE VSV) 

    NEXT: Go to step   37 

  34. 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: Go to step   37 

  35. REPLACE ECM 
    1. Replace 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.

    NEXT: Go to step   37 

  37. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION) 
    NOTE:
    • In the EVAP SYSTEM CHECK (AUTO OPERATION), the series of 5 EVAP SYSTEM CHECK steps are performed automatically. It takes a maximum of approximately 18 minutes.
    • Do not perform the EVAP SYSTEM CHECK when the fuel tank is more than 90% full because the cut-off valve may be closed, making the leak check of the fuel tank not possible.
    • 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 EVAP SYSTEM CHECK, keep the temperature below 35°C (95°F).
    1. Clear the DTCs (see DTC CHECK/CLEAR ).
    2. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / AUTO OPERATION.
    3. After the SYSTEM CHECK is completed, check for pending DTCs by entering the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.

      HINT:

      If no pending DTC is found, the repair has been successfully completed.

    NEXT: COMPLETED