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EVAP System [09/2015 - ]: 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 / 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.

      GTY683497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.

    Result:  NEXT

    NEXT 

    See step  2

  2. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) 
    NOTE:
    • The Evaporative System Check (Automatic Mode) consists of five steps performed automatically by the Techstream. It takes a maximum of approximately 24 minutes.
    • Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.
    • Do not run the engine during this operation.
    • When the temperature of the fuel is 35°C (95°F) or 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. Clear DTCs (Refer to DTC CHECK / CLEAR [09/2015 - ] ).
    2. Enter the following menus: Powertrain / Engine / 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 / Trouble Codes / Pending.

      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.

    Result:  NEXT

    NEXT 

    See step  3

  3. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE) 
    GTY663440Courtesy 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, 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 Evaporative System Check, keep the temperature below 35°C (95°F).
    1. Clear DTCs (Refer to DTC CHECK / CLEAR [09/2015 - ] ).
    2. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Manual Mode.

    Result:  NEXT

    NEXT 

    See step  4

  4. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/6) 
    GTY582468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 1/6.

      Result

      DTCs*1 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 more Canister pressure sensor signal noise B
      (P0452 or P0453) *2
      • EVAP pressure is below 42.11 kPa-g (315.85 mmHg-g) or 123.761 kPa-g (928.28 mmHg-g) or more
      • EVAP pressure deviates +/-10 kPa (+/-75 mmHg) from actual atmosphere pressure *3
      		 Canister pressure sensor or its circuit has malfunction C
      • *1: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.
      • *2: If the canister pressure sensor circuit has an open or short, DTC P0452 or P0453 is stored 0.5 seconds after the engine switch on (IG).

      HINT: 

      *3: Canister pressure sensor standard output range is 70 to 110 kPa-g (525 to 825 mmHg-g). This varies by weather.

    Result:  B

    B 

    See step  38

    Result:  C

    C 

    See step  12

    Result:  A

    A 

    See step  5

  5. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/6 TO 2/6) 
    GTY625064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in steps 1/6 and 2/6.

      Result

      DTCs* Test Result Suspected Trouble Area Proceed to
      - Virtually no variation in EVAP pressure during step 1/6. Then decreases to reference pressure Not yet determined A
      P2402 Small difference between EVAP pressures during steps 1/6 and 2/6 Leak detection pump stuck ON B

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

      HINT: 

      The first reference pressure is the value determined in step 2/6.

    Result:  B

    B 

    See step  33

    Result:  A

    A 

    See step  6

  6. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/6) 
    GTY615995Courtesy 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*1.

    *1: The leak detection pump begins to operate as step 1/6 finishes and step 2/6 starts.

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

    Result

    DTCs*2 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 more
    • 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) more than -0.85 kPa-g (-6.375 mmHg-g) Vent valve stuck closed D

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

    Result:  B

    B 

    See step  11

    Result:  C

    C 

    See step  38

    Result:  D

    D 

    See step  13

    Result:  A

    A 

    See step  7

  7. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/6 TO 3/6) 
    GTY584395Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure increase in step 3/6.

      Result

      DTCs* Test Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more within 10 seconds of proceeding from step 2/6 to step 3/6 Not yet determined A
      P2420 No variation in EVAP pressure despite proceeding from step 2/6 to step 3/6
      • Vent valve stuck open (vent)
      • Canister (charcoal filter inside canister) clogged
      		 B
      P0451 No variation in EVAP pressure during steps 1/6 through 3/6
      • Canister pressure sensor output value stuck
      • Vent valve broken (valve split in two)
      • Leak detection pump performance deteriorates
      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)
      		 C

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

    Result:  B

    B 

    See step  27

    Result:  C

    C 

    See step  15

    Result:  A

    A 

    See step  8

  8. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/6) 
    GTY547792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Wait until the EVAP pressure change is less than 0.12 kPa-g (0.9 mmHg-g) for 50 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.

    Result:  NEXT

    NEXT 

    See step  9

  9. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 4/6) 
    GTY540163Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 4/6.

      Result

      DTCs*1 Test Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more within 10 seconds of proceeding from step 3/6 to step 4/6 Not yet determined A
      P0441*2 EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more within 10 seconds of proceeding from step 3/6 to step 4/6
      • Purge VSV
      • Purge VSV circuit
      • Problems in EVAP hose between purge VSV and intake air surge tank
      • Problems in EVAP hose between canister and purge VSV
      • ECM
      		 B
      P0441 Variation in EVAP pressure less than 0.3 kPa-g (2.25 mmHg-g) for 10 seconds, after proceeding from step 3/6 to step 4/6
      • Purge VSV stuck closed
      • Purge VSV circuit
      • Canister (charcoal filter inside canister) clogged
      • Problems in EVAP hose between purge VSV and intake air surge tank
      • Problems in EVAP hose between canister and purge VSV
      • ECM
      		 C
      • *1: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.
      • *2: This result suggests that due to purge line blockage or purge VSV malfunction, the DTC was stored by the purge flow monitor while the engine was running, or that key-off monitor test results were nearly borderline values.

    Result:  B

    B 

    See step  22

    Result:  C

    C 

    See step  17

    Result:  A

    A 

    See step  10

  10. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 5/6) 
    GTY570424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 5/6.
    2. Compare the EVAP pressure in step 3/6 and the second reference pressure (step 5/6).

      Result

      DTCs* Test Result Suspected Trouble Area Proceed to
      - EVAP pressure (step 3/6) lower than second reference pressure (step 5/6) Not yet determined (no leakage from EVAP system) A
      P0441 and P0455 EVAP pressure (step 3/6) higher than [second reference pressure (step 5/6) x 0.2]
      • Purge VSV stuck open
      • EVAP gross leak
      		 B
      P0456 EVAP pressure (step 3/6) higher than second reference pressure (step 5/6) EVAP small leak B

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

    Result:  A

    A 

    See step  43

    Result:  B

    B 

    See step  17

  11. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/6) 
    GTY562103Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/6.

      Result

      DTCs* Test Result Suspected Trouble Area Proceed to
      P043F EVAP pressure less than [reference pressure] measured at 2/6 Reference orifice high-flow A
      P2401 EVAP pressure almost same as [reference pressure] measured at 2/6 Leak detection pump stuck OFF B

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

      HINT: 

      The first reference pressure is the value determined in step 2/6.

    Result:  A

    A 

    See step  38

    Result:  B

    B 

    See step  31

  12. INSPECT CANISTER PUMP MODULE (CANISTER PRESSURE SENSOR CIRCUIT) 
    1. Check the canister pressure sensor circuit, referring to DTC P0451 canister pressure sensor circuit inspection procedure (Refer to DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input [09/2015 - ] ).

    Result:  NEXT

    NEXT 

    See step  48

  13. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) 
    GTY613873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the V1 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.

      Result

      Condition Test Result Suspected Trouble Area Proceed to
      Apply battery voltage to terminals VLVB and VGND Operating
      • Wire harness or connector between vent valve and ECM
      • Leak detection pump performance deteriorates
      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)
      • ECM
      		 A
      Not operating Vent valve B

    Result:  B

    B 

    See step  38

    Result:  A

    A 

    See step  14

  14. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 
    1. Turn the engine switch off.
    2. Disconnect the V1 canister pump module connector.
    3. Disconnect the E1 ECM connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E1-16 (VPMP) - V1-8 (VGND) Always Below 1 Ω
      E1-16 (VPMP) or V1-8 (VGND) - Body ground Always 10 kΩ or higher
      RESULT

      Result Suspected Trouble Area Proceed to
      OK
      • Leak detection pump performance deteriorates
      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)
      • ECM
      		 A
      NG Wire harness or connector between ECM and canister pump module B

    Result:  B

    B 

    See step  40

    Result:  A

    A 

    See step  15

  15. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) 
    GTY680845Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the V1 canister pump module connector.
    2. Turn the engine switch off.
    3. Measure the resistance according to the value(s) in the table below.
      RESULT

      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      V1-6 (MGND) - Body ground Always Below 1 Ω
      • Canister pump module
      • Wire harness or connector between canister pump module and ECM
      • ECM
      		 A
      10 kΩ or higher Wire harness or connector between canister pump module and body ground B

    Result:  B

    B 

    See step  40

    Result:  A

    A 

    See step  16

  16. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 
    1. Disconnect the V1 canister pump module connector.
    2. Disconnect the E1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.
      RESULT

      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      E1-15 (MPMP) - V1-1 (MTRB) Always Below 1 Ω
      • Canister pump module
      • ECM
      		 A
      10 kΩ or higher Wire harness or connector between ECM and canister pump module B

    Result:  A

    A 

    See step  45

    Result:  B

    B 

    See step  40

  17. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) 
    GTY653868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Enter the following menus: Powertrain / Engine / 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 Blockage in the purge line is considered (based on result of step 9):
      • Problems with EVAP hose between canister and purge VSV
      • Canister (charcoal filter inside canister) clogged
      • ECM
      		 A
      Leakage is considered (based on result of step 10):
      • Fuel cap
      • Leakage from EVAP line, fuel tank, or canister
      		 B
      Suction applied when purge VSV turned off
      • Purge VSV stuck open
      		 C
      No suction when purge VSV turned on
      • Purge VSV stuck closed
      • Problems with EVAP hose between purge VSV and intake manifold
      		 D

    Result:  B

    B 

    See step  20

    Result:  C

    C 

    See step  21

    Result:  D

    D 

    See step  23

    Result:  A

    A 

    See step  18

  18. INSPECT EVAP HOSE (PURGE VSV - CANISTER) 
    1. Check for blockages in the EVAP purge line between the purge VSV and canister.

      OK

      No blockages in the EVAP purge line between the purge VSV and canister.

    Result:  NG

    NG 

    See step  44

    Result:  OK

    OK 

    See step  19

  19. INSPECT CANISTER ASSEMBLY (CHARCOAL FILTER INSIDE CANISTER) 
    1. Check for filter blockage in the canister (Refer to INSPECTION [09/2015 - ] ).

      OK

      No blockages in the canister.

    Result:  OK

    OK 

    See step  47

    Result:  NG

    NG 

    See step  38

  20. CHECK FUEL CAP ASSEMBLY 
    1. Check that the fuel cap is correctly installed and confirm that the fuel cap meets OEM specifications.
    2. Tighten the fuel cap firmly (only one click sound could be heard).

      HINT: 

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

      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(gauge) [24 to 28 mmHg(gauge)] using an EVAP tester pump.
      3. Seal the adapter and wait for 2 minutes.
      4. Check the pressure. If the pressure is 2 kPa(gauge) [15 mmHg(gauge)] or more, 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

    Result:  A

    A 

    See step  37

    Result:  B

    B 

    See step  35

    Result:  C

    C 

    See step  36

  21. INSPECT PURGE VSV 
    GTY671262Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the E44 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
      • Wire harness or connector between purge VSV and ECM (short to ground)
      • ECM
      		 A
      Suction applied Purge VSV B

    Result:  A

    A 

    See step  26

    Result:  B

    B 

    See step  39

  22. INSPECT EVAP HOSE (PURGE VSV - CANISTER) 
    1. Check for blockages in the EVAP purge line between the purge VSV and canister.

      OK

      No blockages in the EVAP purge line between the purge VSV and canister.

    Result:  NG

    NG 

    See step  44

    Result:  OK

    OK 

    See step  23

  23. CHECK EVAP HOSE (PURGE VSV - INTAKE MANIFOLD) 
    GTY663880Courtesy 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 EVAP hose between purge VSV and intake manifold normal
      • Purge VSV
      • Purge VSV power source
      • Wire harness or connector between purge VSV and ECM
      		 A
      No suction
      • Intake manifold port
      • EVAP hose between purge VSV and intake manifold
      		 B

    Result:  B

    B 

    See step  34

    Result:  A

    A 

    See step  24

  24. INSPECT PURGE VSV 
    GTY459782Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the purge VSV.
    2. Apply the battery voltage to the terminals of the purge VSV.
    3. Confirm that air flows from port A to port B.
      RESULT

      Test Result Condition Suspected Trouble Area Proceed to
      Air flows Battery voltage is applied to purge VSV terminals Purge VSV normal
      • Purge VSV power source
      • Wire harness or connector between purge VSV and ECM
      		 A
      No air flow Battery voltage is applied to purge VSV terminals Purge VSV B

    Result:  B

    B 

    See step  39

    Result:  A

    A 

    See step  25

  25. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) 
    GTY625085Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E44 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
      E44-2 - Body ground Engine switch on (IG) 11 to 14 V Purge VSV power source normal
      • Wire harness or connector between purge VSV and ECM
      		 A
      Other than result above Wire harness or connectors between purge VSV and battery B

    Result:  B

    B 

    See step  40

    Result:  A

    A 

    See step  26

  26. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) 
    GTY661050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E44 purge VSV connector.
    2. Disconnect the E1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E44-1 - E1-17 (PRG) Always Below 1 Ω
      E44-1 or E1-17 (PRG) - Body ground Always 10 kΩ or higher

    Result:  OK

    OK 

    See step  47

    Result:  NG

    NG 

    See step  40

  27. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) 
    GTY680846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the V1 canister pump module 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
      V1-9 (VLVB) - Body ground Engine switch on (IG) 11 to 14 V
      • Wire harness or connector between vent valve and ECM
      • Vent valve
      • Canister (charcoal filter inside canister) clogged
      • ECM
      		 A
      Below 3 V
      • Power source wire harness of vent valve
      		 B

    Result:  B

    B 

    See step  40

    Result:  A

    A 

    See step  28

  28. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) 
    GTY613873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the V1 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.
      RESULT

      Condition Tester Result Suspected Trouble Area Proceed to
      Apply battery voltage to terminals VLVB and VGND Operating
      • Wire harness or connector between vent valve and ECM
      • Canister (charcoal filter inside canister) clogged
      • ECM
      		 A
      Not operating
      • Vent valve
      		 B

    Result:  B

    B 

    See step  38

    Result:  A

    A 

    See step  29

  29. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 
    1. Turn the engine switch off.
    2. Disconnect the V1 canister pump module connector.
    3. Measure the resistance according to the value(s) in the table below.
      RESULT

      Tester Connection Condition Test Result Suspected Trouble Area Proceed to
      E1-16 (VPMP) - V1-8 (VGND) Always Below 1 Ω
      • Canister (charcoal filter inside canister) clogged
      • ECM
      		 A
      10 kΩ or higher Wire harness or connector between ECM and canister pump module B

    Result:  B

    B 

    See step  40

    Result:  A

    A 

    See step  30

  30. INSPECT CANISTER ASSEMBLY (CHARCOAL FILTER INSIDE CANISTER) 
    1. Check for filter blockage in the canister (Refer to INSPECTION [09/2015 - ] ).

      OK

      No blockages in the canister.

    Result:  OK

    OK 

    See step  47

    Result:  NG

    NG 

    See step  38

  31. CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE) 
    GTY650338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the V1 canister pump module connector
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.
      RESULT

      Tester Connection Condition Test Result Suspected Trouble Area Proceed to
      V1-1 (MTRB) - Body ground Engine switch on (IG) 9 to 14 V
      • Wire harness or connector between leak detection pump and body ground
      • Leak detection pump
      		 A
      Below 3 V
      • Wire harness or connector between leak detection pump and ECM
      • ECM
      		 B

    Result:  B

    B 

    See step  33

    Result:  A

    A 

    See step  32

  32. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) 
    1. Turn the engine switch off.
    2. Disconnect the V1 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
      V1-6 (MGND) - Body ground Always Below 1 Ω Leak detection pump A
      10 kΩ or higher Wire harness or connector between canister pump module and body ground B

    Result:  A

    A 

    See step  38

    Result:  B

    B 

    See step  40

  33. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 
    1. Turn the engine switch off.
    2. Disconnect the V1 canister pump module connector.
    3. Disconnect the E1 ECM connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E1-15 (MPMP) - V1-1 (MTRB) Always Below 1 Ω
      E1-15 (MPMP) or V1-1 (MTRB) - Body ground Always 10 kΩ or higher

    Result:  A

    A 

    See step  47

    Result:  B

    B 

    See step  40

  34. INSPECT INTAKE MANIFOLD 
    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

      Tester Connection Suspected Trouble Area Proceed to
      Suction applied EVAP hose between intake manifold and purge VSV A
      No suction Intake manifold B

    Result:  A

    A 

    See step  41

    Result:  B

    B 

    See step  42

  35. CORRECTLY REINSTALL OR REPLACE FUEL CAP ASSEMBLY 

    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.

    Result:  NEXT

    NEXT 

    See step  48

  36. REPLACE FUEL CAP ASSEMBLY 

    HINT: 

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

    Result:  NEXT

    NEXT 

    See step  48

  37. LOCATE EVAP LEAK PART 
    GTY673469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the vent hose.
    2. Connect the EVAP pressure tester tool to the canister 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.

    Result:  NEXT

    NEXT 

    See step  48

  38. REPLACE CANISTER ASSEMBLY 
    1. Replace the canister assembly (Refer to REMOVAL [09/2015 - ] ).
      NOTE:
      • When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose.
      • Check for filter blockage in the canister filter. if the canister filter has blockages, replace the canister filter.
      GTY639745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Result:  NEXT

    NEXT 

    See step  48

  39. REPLACE PURGE VSV (PURGE VSV) 
    GTY649729Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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.

    Result:  NEXT

    NEXT 

    See step  48

  40. REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  NEXT

    NEXT 

    See step  48

  41. REPLACE EVAP HOSE (INTAKE AIR SURGE TANK - PURGE VSV) 

    Result:  NEXT

    NEXT 

    See step  48

  42. 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 (Refer to REMOVAL [09/2015 - ] ).

    Result:  NEXT

    NEXT 

    See step  48

  43. REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS 
    1. Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in.

    Result:  NEXT

    NEXT 

    See step  48

  44. REPAIR OR REPLACE EVAP HOSE 

    Result:  NEXT

    NEXT 

    See step  48

  45. REPLACE CANISTER ASSEMBLY 
    1. Replace the canister assembly (Refer to REMOVAL [09/2015 - ] ).
      NOTE:
      • When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose.
      • Check for filter blockage in the canister filter. if the canister filter has blockages, replace the canister filter.
      GTY639745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Result:  NEXT

    NEXT 

    See step  46

  46. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) 
    NOTE:
    • The Evaporative System Check (Automatic Mode) consists of 6 steps performed automatically by the Techstream. It takes a maximum of approximately 24 minutes.
    • Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.
    • Do not run the engine 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 fuel temperature below 35°C (95°F).
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2015 - ] ).
    5. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.
    6. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine / Trouble Codes.
      RESULT

      Result Proceed to
      EVAP system DTCs are output A
      No DTCs output
      (No pending DTCs output)      		 B

    Result:  B

    B 

    END 

    Result:  A

    A 

    See step  47

  47. REPLACE ECM 
    1. Replace the ECM (Refer to REMOVAL [09/2015 - ] ).

    Result:  NEXT

    NEXT 

    See step  48

  48. PERFORM EVAPORATIVE SYSTEM CHECK 
    NOTE:
    • The Evaporative System Check (Automatic Mode) consists of 6 steps performed automatically by the Techstream. It takes a maximum of approximately 24 minutes.
    • Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.
    • Do not run the engine 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 fuel temperature below 35°C (95°F).
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2015 - ] ).
    5. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.
    6. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine / Trouble Codes.

      HINT: 

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

    Result:  NEXT

    NEXT 

    END 

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