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EVAP System [11/2016 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CONFIRM DTC 
    1. Turn the ignition switch off and wait for 10 seconds.
    2. Turn the ignition switch to ON.
    3. Turn the ignition switch off and wait for 10 seconds.
    4. Connect the Techstream to the DLC3.
    5. Turn the ignition switch to ON.
    6. Turn the Techstream on.
    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

      Powertrain > Engine and ECT > Trouble Codes 

    8. Confirm the DTCs and freeze frame data.

      If any EVAP system DTCs are stored, the malfunctioning area can be determined using the table below.

      GTY713614Courtesy 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.

    NEXT 

  2. PERFORM EVAP 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 during this operation.
    • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the temperature less than 35°C (95°F).
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Powertrain > Engine and ECT > Clear DTCs 

    5. Turn the ignition switch off and wait for at least 30 seconds.
    6. Turn the ignition switch to ON and turn the Techstream on.
    7. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      Evaporative System Check
    8. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes.

      Powertrain > Engine and ECT > Trouble Codes 

      HINT: 

      If no pending DTCs are displayed, perform the Confirmation Driving Pattern. After this confirmation, check for pending DTCs. If no DTCs are displayed, the EVAP system is normal.

    NEXT 

  3. PERFORM EVAP SYSTEM CHECK (MANUAL MODE) 
    GTY437039Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:
    • In the Evaporative System Check (Manual Mode), the series of 6 Evaporative System Check steps are performed 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 higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the temperature less than 35°C (95°F).
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Powertrain > Engine and ECT > Clear DTCs 

    5. Turn the ignition switch off and wait for at least 30 seconds.
    6. Turn the ignition switch to ON and turn the Techstream on.
    7. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      Evaporative System Check

    NEXT 

  4. PERFORM EVAP SYSTEM CHECK (STEP 1/6) 
    GTY439614Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 1/6.

      Result

      DTC*1 Result Suspected Trouble Area Proceed to
      - Virtually no variation in EVAP pressure Not yet determined A
      P0451 EVAP pressure fluctuates by +/-0.3 kPa(gauge) [2.25 mmHg(gauge)] or higher Canister pressure sensor signal noise B
      (P0452 or P0453)*2
      • EVAP pressure is below 42.11009 kPa(abs) [315.82568 mmHg(abs)] or 123.76147 kPa(abs) [928.21103 mmHg(abs)] or higher
      • EVAP pressure deviates +/-10 kPa(gauge) [75 mmHg(gauge)] 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 ignition switch is turned to ON.

      HINT: 

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

    Result:  2

    B 

    See step  51

    Result:  3

    C 

    See step  53

    Result:  1

    A 

    See step  5

  5. PERFORM EVAP SYSTEM CHECK (STEP 1/6 TO 2/6) 
    GTY430747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in steps 1/6 and 2/6.

      Result

      DTC* 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" procedure above.

      HINT: 

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

    Result:  2

    B 

    See step  47

    Result:  1

    A 

    See step  6

  6. PERFORM EVAP SYSTEM CHECK (STEP 2/6) 
    GTY434732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT: 

    Make a note of the pressures checked in inspection items (A) and (B) below.

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

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

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

      Result

      DTC*2 Result Suspected Trouble Area Proceed to
      - EVAP pressure in inspection item (B) is between -4.85 kPa(gauge) and -1.057 kPa(gauge) [-36.38 mmHg(gauge) and -7.929 mmHg(gauge)] Not yet determined A
      P043F and P2401 EVAP pressure in inspection item (B) is -1.057 kPa(gauge) [-7.929 mmHg(gauge)] or higher
      • Reference orifice high-flow
      • Leak detection pump stuck off
      		 B
      P043E EVAP pressure in inspection item (B) is less than -4.85 kPa(gauge) [-36.38 mmHg(gauge)] Reference orifice clogged C
      P2419 EVAP pressure in inspection item (A) is higher than -0.25 kPa(gauge) [-1.875 mmHg(gauge)]
      • Vent valve stuck closed
      • Leak detection pump performance deteriorates
      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)
      		 D
      • *2: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.

    Result:  2

    B 

    See step  40

    Result:  3

    C 

    See step  51

    Result:  4

    D 

    See step  41

    Result:  1

    A 

    See step  7

  7. PERFORM EVAP SYSTEM CHECK (STEP 2/6 TO 3/6) 
    GTY450602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/6.

      Result

      DTC* Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa(gauge) [2.25 mmHg(gauge)] or higher within 10 seconds of proceeding from step 2/6 to step 3/6 Not yet determined A
      P2420 No variation in EVAP pressure even after 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" procedure above.

    Result:  2

    B 

    See step  33

    Result:  3

    C 

    See step  43

    Result:  1

    A 

    See step  8

  8. PERFORM EVAP SYSTEM CHECK (STEP 3/6) 
    GTY427888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Wait until the EVAP pressure change is less than 0.1 kPa(gauge) [0.75 mmHg(gauge)] for 40 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 

  9. PERFORM EVAP SYSTEM CHECK (STEP 4/6) 
    GTY424389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 4/6.

      Result

      DTC*1 Result Suspected Trouble Area Proceed to
      - EVAP pressure increases by 0.3 kPa(gauge) [2.25 mmHg(gauge)] or higher 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(gauge) [2.25 mmHg(gauge)] or higher 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 manifold
      • Problems in EVAP hose between canister and purge VSV
      • ECM
      		 B
      P0441 Variation in EVAP pressure is less than 0.3 kPa(gauge) [2.25 mmHg(gauge)] 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 manifold
      • 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 result were nearly borderline values.

    Result:  2

    B 

    See step  12

    Result:  3

    C 

    See step  13

    Result:  1

    A 

    See step  10

  10. PERFORM EVAP SYSTEM CHECK (STEP 5/6) 
    GTY441103Courtesy 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

      DTC* Result Suspected Trouble Area Proceed to
      - EVAP pressure from 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 from 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 from step 3/6 higher than second reference pressure (step 5/6) EVAP small leak
      • *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above.

    Result:  2

    B 

    See step  13

    Result:  1

    A 

    See step  11

  11. 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 

    See step  54

  12. 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

      Proceed to
      OK
      NG

    Result:  1

    OK 

    See step  23

    Result:  2

    NG 

    See step  17

  13. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) 
    GTY710271Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Purge VSV
    *2 Fuel Vapor Feed Hose (to Canister)
    1. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for EVAP Control.

      Powertrain > Engine and ECT > Active Test 

      Tester Display
      Activate the VSV for Evap Control
    2. Disconnect the fuel vapor feed 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 tank 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 air surge tank assembly
      		 D

    Result:  2

    B 

    See step  18

    Result:  3

    C 

    See step  22

    Result:  4

    D 

    See step  23

    Result:  1

    A 

    See step  14

  14. 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

      Proceed to
      OK
      NG

    Result:  2

    NG 

    See step  17

    Result:  1

    OK 

    See step  15

  15. INSPECT CANISTER (CHARCOAL FILTER INSIDE CANISTER) 
    1. Check for filter blockage in the canister.

      Refer to INSPECTION [11/2016 - ]

      OK

      No blockages in the canister.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    See step  39

    Result:  1

    OK 

    See step  16

  16. INSPECT NO. 1 CHARCOAL CANISTER FILTER (CHARCOAL FILTER INSIDE CANISTER) 
    1. Check for filter blockage in the No. 1 charcoal canister filter.

      Refer to INSPECTION [11/2016 - ]

      OK

      No blockages in the No. 1 charcoal canister filter.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    See step  50

    Result:  2

    NG 

    See step  38

  17. REPAIR OR REPLACE EVAP PURGE LINE (PURGE VSV - CANISTER) 

    NEXT 

    See step  54

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

      HINT: 

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

      1. Remove the fuel tank cap and install it onto a fuel tank 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 27.75 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 higher, the fuel tank cap is normal.

      Result

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

    Result:  2

    B 

    See step  20

    Result:  3

    C 

    See step  21

    Result:  1

    A 

    See step  19

  19. LOCATE EVAP LEAK PART 
    1. Disconnect the vent hose.
      GTY724156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Tank *2 Canister
      *3 Canister Filter *4 Fuel Tank Cap
      *5 Canister Pump Module *6 No. 1 Charcoal Canister Filter
      *a Disconnect the vent hose - -
    2. Connect the EVAP pressure tester tool to the canister pump module with the adapter.
      GTY740135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Canister Pump Module *2 Adapter
      *3 EVAP Pressure Tester Tool - -
    3. Pressurize the EVAP system to 3.2 to 3.7 kPa(gauge) [24 to 28 mmHg(gauge)].
    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 fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks.

    NEXT 

    See step  54

  20. CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY 

    HINT: 

    • When reinstalling the fuel tank cap, tighten it firmly (only one click sound could be head).
    • When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications, and install it firmly.

    NEXT 

    See step  54

  21. REPLACE FUEL TANK CAP ASSEMBLY 

    HINT: 

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

    NEXT 

    See step  54

  22. INSPECT PURGE VSV 
    GTY717047Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Purge VSV
    *2 Fuel Vapor Feed Hose (to Canister)
    *3 Purge VSV Connector
    1. Turn the ignition switch off.
    2. Disconnect the purge VSV connector.
    3. Disconnect the fuel vapor feed 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
      • ECM
      		 A
      Suction applied Purge VSV B

    Result:  1

    A 

    See step  26

    Result:  2

    B 

    See step  29

  23. CHECK EVAP HOSE (PURGE VSV - INTAKE MANIFOLD) 
    GTY727441Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Purge VSV
    *2 Fuel Vapor Feed Hose (to Intake Manifold)
    1. Disconnect the fuel vapor feed 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:  2

    B 

    See step  30

    Result:  1

    A 

    See step  24

  24. INSPECT PURGE VSV 
    GTY703100Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Purge VSV
    1. Remove the purge VSV.
    2. Apply battery voltage to the terminals of the purge VSV.
    3. Confirm that air flows from port E to port F.

      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:  2

    B 

    See step  29

    Result:  1

    A 

    See step  25

  25. CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV) 
    GTY696830Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Purge VSV)
    1. Disconnect the purge VSV connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Result

      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      C11-1 - Body ground Ignition switch ON 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:  2

    B 

    See step  27

    Result:  1

    A 

    See step  26

  26. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) 
    1. Turn the ignition switch off.
    2. Disconnect the purge VSV connector.
    3. Disconnect the ECM connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C11-2 - C1-68 (PRG) Always Below 1 Ω
      C11-2 or C1-68 (PRG) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    See step  50

    Result:  2

    NG 

    See step  52

  27. CHECK HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - PURGE VSV) 
    1. Turn the ignition switch off.
    2. Disconnect the semiconductor pwr integration ECU connector.
    3. Disconnect the purge VSV connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      1G-7 - C11-1 Always Below 1 Ω
      1G-7 or C11-1 - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    See step  52

    Result:  1

    OK 

    See step  28

  28. REPLACE SEMICONDUCTOR PWR INTEGRATION ECU 
    1. Replace the semiconductor pwr integration ECU.

      Refer to REMOVAL [12/2013 - ]

    NEXT 

    See step  54

  29. REPLACE PURGE VSV 
    1. Replace the purge VSV.

      Refer to REMOVAL [12/2013 - ]

    NEXT 

    See step  54

  30. 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

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

    Result:  2

    B 

    See step  32

    Result:  1

    A 

    See step  31

  31. REPAIR OR REPLACE EVAP PURGE LINE (INTAKE MANIFOLD - PURGE VSV) 

    NEXT 

    See step  54

  32. 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 [12/2013 - ]

    NEXT 

    See step  54

  33. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) 
    GTY706833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Canister Pump Module)
    1. Turn the ignition switch off.
    2. Disconnect the canister pump module connector.
    3. Turn the ignition switch to ON.
    4. Measure the voltage according to the value(s) in the table below.

      Result

      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      L10-5 (VLVB) - Body ground Ignition switch ON 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:  2

    B 

    See step  52

    Result:  1

    A 

    See step  34

  34. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) 
    GTY652087Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Canister Pump Module)
    1. Turn the ignition switch off.
    2. Disconnect the canister pump module connector.
    3. Apply the battery voltage to terminals VLVB and VGND 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:  2

    B 

    See step  51

    Result:  1

    A 

    See step  35

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

      Result

      Tester Connection Condition Test Result Suspected Trouble Area Proceed to
      L10-1 (VGND) - A43-7 (VPMP) 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:  2

    B 

    See step  52

    Result:  1

    A 

    See step  36

  36. INSPECT CANISTER (CHARCOAL FILTER INSIDE CANISTER) 
    1. Check for filter blockage in the canister.

      Refer to INSPECTION [11/2016 - ]

      OK

      No blockages in the canister.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    See step  39

    Result:  1

    OK 

    See step  37

  37. INSPECT NO. 1 CHARCOAL CANISTER FILTER (CHARCOAL FILTER INSIDE CANISTER) 
    1. Check for filter blockage in the No. 1 charcoal canister filter.

      Refer to INSPECTION [11/2016 - ]

      OK

      No blockages in the No. 1 charcoal canister filter.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    See step  50

    Result:  2

    NG 

    See step  38

  38. REPLACE NO. 1 CHARCOAL CANISTER FILTER 
    1. Replace the No. 1 charcoal canister filter.

      Refer to REMOVAL [11/2016 - ]

      NOTE:
      • When replacing the No. 1 charcoal canister filter, check the canister interior, 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.
      GTY719586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Tank Vent Hose *2 Air Inlet Port
      *3 Vent Hose *4 Fuel Tank
      *5 Canister Pump Module *6 Canister
      *7 Canister Filter *8 No. 1 Charcoal Canister Filter
      *9 Fuel Tank Cap - -
      *a Inspection Area
      (check for disconnection and/or cracks)      		 - -

    NEXT 

    See step  54

  39. REPLACE CANISTER 
    1. Replace the canister.

      Refer to REMOVAL [11/2016 - ]

      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.
      GTY719586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Tank Vent Hose *2 Air Inlet Port
      *3 Vent Hose *4 Fuel Tank
      *5 Canister Pump Module *6 Canister
      *7 Canister Filter *8 No. 1 Charcoal Canister Filter
      *9 Fuel Tank Cap - -
      *a Inspection Area
      (check for disconnection and/or cracks)      		 - -

    NEXT 

    See step  54

  40. PERFORM EVAP SYSTEM CHECK (STEP 3/6) 
    GTY443687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the EVAP pressure in step 3/6.

      Result

      DTC* Result Suspected Trouble Area Proceed to
      P043F EVAP pressure less than [reference pressure] measured in step 2/6 Reference orifice high-flow A
      P2401 EVAP pressure almost same as [reference pressure] measured in step 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" procedure above.

      HINT: 

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

    Result:  1

    A 

    See step  51

    Result:  3

    B 

    See step  47

  41. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) 
    GTY652087Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Canister Pump Module)
    1. Turn the ignition switch off.
    2. Disconnect the canister pump module connector.
    3. Apply the battery voltage to terminals VLVB and VGND 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
      • Leak detection pump performance deteriorates
      • Leak detection pump circuit malfunctioning (large resistance exists in the circuit)
      • ECM
      		 A
      Not operating Vent valve B

    Result:  2

    B 

    See step  51

    Result:  1

    A 

    See step  42

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-1 (VGND) - A43-7 (VPMP) Always Below 1 Ω
      L10-1 (VGND) or A43-7 (VPMP) - Body ground and other terminals 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:  2

    B 

    See step  52

    Result:  1

    A 

    See step  43

  43. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) 
    1. Turn the ignition switch off.
    2. Disconnect the 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
      L10-4 (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:  2

    B 

    See step  52

    Result:  1

    A 

    See step  44

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

      Result

      Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
      L10-3 (MTRB) - A43-19 (MPMP) 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:  2

    B 

    See step  52

    Result:  1

    A 

    See step  45

  45. REPLACE CANISTER PUMP MODULE 
    1. Replace the canister pump module.

      Refer to REMOVAL [11/2016 - ]

      NOTE:
      • When replacing canister pump module, check the canister pump module interior, canister 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. If liquids are present in canister interior, replace canister and canister pump module together.
      • Check for filter blockage in the canister. If the charcoal filter inside the canister is clogged, replace canister and canister pump module together.
      • Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter.
      GTY719586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Tank Vent Hose *2 Air Inlet Port
      *3 Vent Hose *4 Fuel Tank
      *5 Canister Pump Module *6 Canister
      *7 Canister Filter *8 No. 1 Charcoal Canister Filter
      *9 Fuel Tank Cap - -
      *a Inspection Area
      (check for disconnection and/or cracks)      		 - -

    NEXT 

  46. PERFORM EVAP 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 higher, 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 ignition switch to ON.
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Powertrain > Engine and ECT > Clear DTCs 

    5. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      Evaporative System Check
    6. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes.

      Powertrain > Engine and ECT > Trouble Codes 

      Result

      Result Proceed to
      EVAP system DTCs are output A
      DTC is not output
      (Pending DTC is not output)      		 B

    Result:  1

    A 

    See step  50

    Result:  2

    B 

    END 

  47. CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE) 
    GTY706831Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Canister Pump Module)
    1. Turn the ignition switch off.
    2. Disconnect the canister pump module connector.
    3. Turn the ignition switch to ON.
    4. Measure the voltage according to the value(s) in the table below.

      Result

      Tester Connection Condition Test Result Suspected Trouble Area Proceed to
      L10-3 (MTRB) - Body ground Ignition switch ON 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:  2

    B 

    See step  49

    Result:  1

    A 

    See step  48

  48. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) 
    1. Turn the ignition switch off.
    2. Disconnect the 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
      L10-4 (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:  1

    A 

    See step  51

    Result:  2

    B 

    See step  52

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-3 (MTRB) - A43-19 (MPMP) Always Below 1 Ω
      L10-3 (MTRB) or A43-19 (MPMP) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Result Suspected Trouble Area Proceed to
      OK ECM A
      NG Wire harness or connector between ECM and canister pump module B

    Result:  2

    B 

    See step  52

    Result:  1

    A 

    See step  50

  50. REPLACE ECM 
    1. Replace the ECM.

      Refer to REMOVAL [12/2013 - ]

    NEXT 

    See step  54

  51. REPLACE CANISTER PUMP MODULE 
    1. Replace the canister pump module.

      Refer to REMOVAL [11/2016 - ]

      NOTE:
      • When replacing canister pump module, check the canister pump module interior, canister 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. If liquids are present in canister interior, replace canister and canister pump module together.
      • Check for filter blockage in the canister. If the charcoal filter inside the canister is clogged, replace canister and canister pump module together.
      • Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter.
      GTY719586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Tank Vent Hose *2 Air Inlet Port
      *3 Vent Hose *4 Fuel Tank
      *5 Canister Pump Module *6 Canister
      *7 Canister Filter *8 No. 1 Charcoal Canister Filter
      *9 Fuel Tank Cap - -
      *a Inspection Area
      (check for disconnection and/or cracks)      		 - -

    Result:  1

    NEXT 

    See step  54

  52. REPAIR OR REPLACE HARNESS OR CONNECTOR 

    NEXT 

    See step  54

  53. 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 [11/2016 - ]

    NEXT 

  54. PERFORM EVAP 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 higher, 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 ignition switch to ON.
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Powertrain > Engine and ECT > Clear DTCs 

    5. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      Evaporative System Check
    6. After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes.

      Powertrain > Engine and ECT > Trouble Codes 

      HINT: 

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

    NEXT 

    END 

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