LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2007 >> Yaris Base, 2D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> EVAP System >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

NOTE: An intelligent tester is required to conduct the following diagnostic troubleshooting procedure.

HINT:

  1. CONFIRM DTC 
    1. Turn the ignition switch to OFF and wait for 10 seconds.
    2. Turn the ignition switch to ON.
    3. Turn the ignition switch to OFF and wait for 10 seconds.
    4. Connect an intelligent tester to the DLC3.
    5. Turn the ignition switch to ON and turn the tester ON.
    6. Select the following menu items: 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 reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.
      Fig 1: Identifying DTC Malfunctioning Area Table
      G04828290Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NEXT: GO TO NEXT STEP 

  2. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION) 
    NOTE:
    • The EVAP SYSTEM CHECK (AUTO OPERATION) consists of five steps performed automatically by the intelligent tester. 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 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 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 DTCs (See DTC CHECK/CLEAR  ).
    2. On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / AUTO OPERATION.
    3. After the EVAP SYSTEM CHECK is completed, check for pending DTCs by selecting the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.

      HINT:

      If no pending DTCs are displayed, perform the MONITOR CONFIRMATION (see "Diagnostic Help" menu). After this confirmation, check for pending DTCs. If no DTCs are displayed, the EVAP system is normal.

    NEXT: GO TO NEXT STEP 

  3. PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION) 
    Fig 2: Identifying EVAP Pressure Graph (Manual Operation)
    G04828299Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:
    • In the EVAP SYSTEM CHECK (MANUAL OPERATION), perform the series of 5 EVAP SYSTEM CHECK steps manually using the intelligent tester.
    • 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 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 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 DTCs (See DTC CHECK/CLEAR  ).
    2. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / MANUAL OPERATION.

    NEXT: GO TO NEXT STEP 

  4. PERFORM EVAP SYSTEM CHECK (STEP 1/5) 
    Fig 3: Identifying EVAP Pressure Graph (Step 1/5)
    G04828300Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 1/5.

      Result 

      RESULT REFERENCE

      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-g (2.25 mmHg-g) or more Canister pressure sensor noise B
      (1) These DTCs are already present in the ECM when the vehicle arrives and are confirmed in step 1.

    B: Go to step   29 

    A: GO TO NEXT STEP 

  5. PERFORM EVAP SYSTEM CHECK (STEP 1/5 TO 2/5) 
    Fig 4: Identifying EVAP Pressure Graph (Step 1/5 To 2/5)
    G04828301Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in steps 1/5 and 2/5.

      Result 

      RESULT REFERENCE

      DTCs(1) Test Results Suspected Trouble Areas 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
      (1) These DTCs are already present in the ECM when the vehicle arrives and are confirmed in step 1.

      HINT:

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

    B: Go to step   22 

    A: GO TO NEXT STEP 

  6. PERFORM EVAP SYSTEM CHECK (STEP 2/5) 
    Fig 5: Identifying EVAP Pressure Graph (Step 2/5)
    G04828302Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    Make a note of the pressures checked in steps ( a) and ( b) 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 finishes and step 2/5 starts.

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

      Result 

      RESULT REFERENCE

      DTCs(1) Test Results Suspected Trouble Areas 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 more
      • Reference orifice high-flow
      • Leak detection pump stuck OFF
      		 B
      P043E EVAP pressure in step ( bb) below -4.85 kPa-g (-36.4 mmHg-g) Reference orifice clogged C
      P2419 EVAP pressure in step ( aa) more than -1.057 kPa-g (-7.93 mmHg-g) Vent valve stuck closed D
      (1) These DTCs are already present in the ECM when the vehicle arrives and are confirmed in step 1.

    B: Go to step   11 

    C: Go to step   29 

    D: Go to step   20 

    A: GO TO NEXT STEP 

  7. PERFORM EVAP SYSTEM CHECK (STEP 2/5 TO 3/5) 
    Fig 6: EVAP Pressure Graph (Step 2/5 To 3/5)
    G04828303Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure increase in step 3/5.

      Result 

      RESULT REFERENCE

      DTCs(1) Test Results Suspected Trouble Areas Proceed To
      - EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) 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 fixed C
      (1) These DTCs are already present in the ECM when the vehicle arrives and are confirmed in step 1.

    B: Go to step   19 

    C: Go to step   29 

    A: GO TO NEXT STEP 

  8. PERFORM EVAP SYSTEM CHECK (STEP 3/5) 
    Fig 7: Identifying EVAP Pressure Graph (Step 3/5)
    G04828304Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Wait until the EVAP pressure change is less than 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: Identifying EVAP Pressure Graph (Step 4/5)
    G04828305Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 4/5.

      Result 

      RESULT REFERENCE

      DTCs(1) Test Results Suspected Trouble Areas Proceed To
      - EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) 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-g (2.25 mmHg-g) 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-g (2.25 mmHg-g) for 10 seconds, after proceeding from step 3/5 to step 4/5 Purge VSV stuck closed C
      (1) These DTCs are already present in the ECM when the vehicle arrives and are confirmed in step 1.

    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: Identifying EVAP Pressure Graph (Step 5/5)
    G04828306Courtesy 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 

      RESULT REFERENCE

      DTCs(1) Test Results Suspected Trouble Areas Proceed To
      - EVAP pressure (step 3/5) lower than 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
      (1) These DTCs are already present in the ECM when the vehicle arrives and are confirmed in step 1.

    A: Go to step   35 

    B: Go to step   12 

  11. PERFORM EVAP SYSTEM CHECK (STEP 3/5) 
    Fig 10: Identifying EVAP Pressure Graph (Step 3/5)
    G04828307Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/5.

      Result 

      RESULT REFERENCE

      DTCs(1) Test Results Suspected Trouble Areas 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
      (1) These DTCs are already present in the ECM when the vehicle arrives and are confirmed in step 1.

      HINT:

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

    A: Go to step   29 

    B: Go to step   22 

  12. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (PURGE VSV) 
    1. On the intelligent tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / EVAP VSV.
    2. Disconnect the hose (connected to the canister) from the purge VSV.
    3. Start the engine.
    4. Using the tester, turn off the purge VSV (EVAP VSV: OFF).
    5. Use your finger to confirm that the purge VSV has no suction.
      Fig 11: Identifying Purge VSV
      G04828308Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Using the tester, turn on the purge VSV (EVAP VSV: ON).
    7. Use your finger to confirm that the purge VSV has suction.

      Result 

      RESULT REFERENCE

      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
    8. Reconnect the hose.

    B: Go to step   14 

    C: Go to step   15 

    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.
      1. Tighten the fuel cap until a few click sounds are heard.

        HINT:

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

    2. Remove the fuel cap and install it onto a fuel cap adapter.
    3. 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.
    4. Seal the adapter 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 REFERENCE

      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
    6. Reinstall the fuel cap.

    A: Go to step   28 

    B: Go to step   26 

    C: Go to step   27 

  14. INSPECT DUTY VACUUM SWITCHING VALVE (PURGE VSV) 
    1. Turn the ignition switch to OFF.
    2. Disconnect the C3 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.
      Fig 12: Identifying Purge VSV
      G04828309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      No suction ECM A
      Suction applied Purge VSV B
    6. Reconnect the purge VSV connector.
    7. Reconnect the hose.

    A: Go to step   34 

    B: Go to step   30 

  15. CHECK EVAP HOSE (PURGE VSV - INTAKE MANIFOLD) 
    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.
      Fig 13: Identifying Purge VSV
      G04828310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      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
    4. Reconnect the hose.

    B: Go to step   25 

    A: GO TO NEXT STEP 

  16. INSPECT DUTY VACUUM SWITCHING VALVE (PURGE VSV) 
    1. Remove the purge VSV.
    2. Apply the 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: Applying Battery Voltage To Terminals Of Purge VSV
      G04828311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      Air flows Purge VSV normal A
      No air flow Purge VSV B
    4. Install the purge VSV.

    B: Go to step   30 

    A: GO TO NEXT STEP 

  17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) 
    1. Disconnect the C3 purge VSV connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage between terminal 2 of the purge VSV connector and the body ground.
      Fig 15: Identifying C3 Purge VSV Connectors
      G04828312Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      11 to 14 V Normal A
      Other than result above Wire harness or connectors between purge VSV and ECM B
    4. Reconnect the purge VSV connector.

    B: Go to step   31 

    A: GO TO NEXT STEP 

  18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) 
    1. Disconnect the C20 ECM connector and the C3 purge VSV connector.
    2. Check the resistance.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connections Specified Conditions
      PRG (C20-49) - Purge VSV (C3-1) Below 1 Ω
      PRG (C20-49) - Body ground 10 kΩ or higher
      Purge VSV (C3-1) - Body ground
    3. Reconnect the purge VSV connector.
    4. Reconnect the ECM connector.

    OK: Go to step   34 

    NG: Go to step   31 

    Fig 16: Identifying Purge VSV & ECM Connectors
    G04828313Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) 
    1. Turn the ignition switch to OFF.
    2. Disconnect the J25 canister pump module connector.
    3. Turn the ignition switch to ON.
    4. Measure the voltage between VLVB terminal of the canister pump module connector and the body ground.
      Fig 17: Identifying J25 Canister Pump Module Connector
      G04828314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      11 to 14 V
      1. Wire harness between vent valve and ECM
      2. Vent valve
      3. ECM
      		 A
      Below 3 V Power source wire harness of vent valve B
    5. Reconnect the canister pump module connector.

    B: Go to step   31 

    A: GO TO NEXT STEP 

  20. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) 
    1. Turn the ignition switch to OFF.
    2. Disconnect the J25 canister pump module connector.
    3. Apply the battery voltage to VLVB and VGND terminals of the canister pump module.
    4. Touch the canister pump module to confirm the vent valve operation.
      Fig 18: Disconnecting J25 Canister Pump Module Connector
      G04828315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      Operating
      1. Wire harness between vent valve and ECM
      2. ECM
      		 A
      Not operating Vent valve B
    5. Reconnect the canister connector.

    B: Go to step   29 

    A: GO TO NEXT STEP 

  21. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) 
    1. Disconnect the A21 ECM connector.
    2. Disconnect the J25 canister pump module connector.
    3. Check the resistance between VPMP terminal of the ECM connector and VGND terminal of the canister pump module connector.
      Fig 19: Identifying Canister Pump Module & ECM Connectors
      G04828316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      Below 1 Ω ECM A
      10 kΩ or higher Wire harness between ECM and canister pump module B
    4. Reconnect the ECM connector.
    5. Reconnect the canister pump module connector.

    A: Go to step   34 

    B: Go to step   31 

  22. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (VACUUM PUMP (ALONE) 
    1. Turn the ignition switch to OFF.
    2. Disconnect the J25 canister pump module connector.
    3. Turn the ignition switch to ON.
    4. On the intelligent tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP (ALONE).
    5. Measure the voltage between MTRB terminal 1 of the canister pump module connector and the body ground when the leak detection pump is turned ON and OFF using the tester.
      Fig 20: Identifying Canister Pump Module Connectors
      G04828317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      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
      Below 3 V when OFF and ON
      1. Wire harness between leak detection pump and ECM
      2. ECM
      		 B

    B: Go to step   24 

    A: GO TO NEXT STEP 

  23. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) 
    1. Turn the ignition switch to OFF.
    2. Disconnect the J25 canister pump module connector.
    3. Check the resistance between MGND terminal of the canister pump module connector and the body ground.
      Fig 21: Identifying Canister Pump Module Connectors
      G04828318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      Below 1 Ω Leak detection pump A
      10 kΩ or higher Wire harness between canister pump module and body ground B
    4. Reconnect the canister pump module connector.

    A: Go to step   29 

    B: Go to step   31 

  24. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) 
    1. Turn the ignition switch to OFF.
    2. Disconnect the J25 canister pump module connector.
    3. Disconnect the A21 ECM connector.
    4. Check the resistance between MPMP terminal of the ECM connector and MTRB terminal of the canister pump module connector.
      Fig 22: Identifying Canister Pump Module & ECM Connectors
      G04828319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      Below 1 Ω ECM A
      10 kΩ or higher Wire harness between ECM and canister pump module B
    5. Reconnect the canister pump module connector.
    6. Reconnect the ECM connector.

    A: Go to step   34 

    B: Go to step   31 

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

      Result 

      RESULT REFERENCE

      Test Results Suspected Trouble Areas Proceed To
      Suction applied EVAP hose between intake manifold and purge VSV A
      No suction Intake manifold B
    5. Reconnect the EVAP hose.

    A: Go to step   32 

    B: Go to step   33 

  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 it until a few click sounds are heard.

    NEXT: Go to step   36 

  27. REPLACE FUEL CAP 

    HINT:

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

    NEXT: Go to step   36 

  28. LOCATE EVAP LEAK PART 
    Fig 23: Identifying Canister Filter, Vent Hose & EVAP Pressure Tester Tool
    G04828320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the vent hose.
    2. Connect the EVAP pressure tester tool to the vent hose 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: Go to step   36 

  29. REPLACE CHARCOAL CANISTER ASSEMBLY 
    1. Replace the canister assembly (See 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 & Air Inlet Port
      G04828183Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NEXT: Go to step   36 

  30. REPLACE DUTY VACUUM SWITCHING VALVE (PURGE VSV) 
    1. Disconnect the connector and the hoses from the purge VSV.
    2. Remove the purge VSV.
    3. Install a new purge VSV.
    4. Reconnect the connector and hoses.

    NEXT: Go to step   36 

    Fig 25: Identifying Purge VSV
    G04828322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. REPAIR OR REPLACE HARNESS OR CONNECTOR 

    NEXT: Go to step   36 

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

    NEXT: Go to 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: Go to step   36 

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

    NEXT: Go to 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 step   36 

  36. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION) 
    NOTE:
    • The EVAP SYSTEM CHECK (AUTO OPERATION) consists of five steps performed automatically by the intelligent tester. 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 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 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 DTCs (See DTC CHECK/CLEAR  ).
    2. On the intelligent tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / AUTO OPERATION.
    3. After the SYSTEM CHECK is completed, check for pending DTCs by selecting the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.

      HINT:

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

    NEXT: COMPLETED 

scientia non olet · About LEMON Manuals