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On-Vehicle Inspection [01/2017 - 05/2023]: Procedure

  1. INSTALL FUEL PUMP OPERATION AND INSPECT FOR FUEL LEAK 
    1. Check the fuel pump operation.
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch on (IG).
        NOTE:

        Do not start the engine.

      3. Turn the Techstream on.
      4. Enter the following menus: Powertrain / Engine / Active Test / Activate the Circuit Relay.

        Powertrain > Engine > Active Test 

        Tester Display
        Activate the Circuit Relay
      5. Check for pressure in the fuel tube sub-assembly from the fuel line. Check that sounds of fuel flowing from the fuel tank assembly can be heard. If no sounds can be heard, check the relay, fuel pump, ECM and wiring connectors.
    2. Inspect for fuel leaks.
      1. Check that there are no fuel leaks anywhere in the system after performing maintenance.

        If there is a fuel leak, repair or replace parts as necessary.

    3. Turn the power switch off.
    4. Disconnect the Techstream from the DLC3.
  2. CHECK FUEL PRESSURE 
    1. Check the battery voltage.
    2. Discharge the fuel system pressure.
    3. Disconnect the cable from the negative (-) auxiliary auxiliary battery terminal.
      NOTE:
      • After turning the power switch off, waiting time may be required before disconnecting the cable from the auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the auxiliary battery terminal notice before proceeding with work.

        Refer to INITIALIZATION [01/2017 - 04/2020] , or refer to INITIALIZATION [04/2020 - 05/2023]

      • When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

        Refer to PRECAUTION [01/2017 - 05/2023]

    4. For Port Injection Side:
      1. Detach the 2 claws to remove the No. 2 fuel hose clamp.
      2. Detach the hose clamp.
        GTY829450Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Disconnect the fuel tube sub-assembly.

        Refer to PRECAUTION [01/2017 - 05/2023] 

    5. For Direct Injection Side:
      1. Detach the 2 claws to remove the No. 2 fuel hose clamp.
      2. Disconnect the fuel tube sub-assembly.

        Refer to PRECAUTION [01/2017 - 05/2023] 

        GTY783349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Install SST (pressure gauge) as shown in the illustration.
      • SST: 09268-45101 
        1. 09268-41250
        2. 09268-41260
        3. 09268-41280
        4. 09268-41500
        5. 09268-41700
        6. 95336-08070
      GTY781359Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Tube Sub-assembly (Vehicle Side)
      *a SST (Hose Band)
      *b SST (T-joint)
      *c SST (Gauge)
      *d SST (Hose Joint)
      *e SST (Hose)
      *f SST (Fuel Tube Connector)
      *g Fuel Pipe (Vehicle Side)
    7. Wipe up any spilled fuel.
    8. Connect the cable to the negative (-) auxiliary battery terminal.
    9. Connect the Techstream to the DLC3.
    10. Turn the power switch on (IG).
      NOTE:

      Do not start the engine.

    11. Turn the Techstream on.
    12. Enter the following menus: Powertrain / Engine / Active Test / Activate the Circuit Relay.

      Powertrain > Engine > Active Test 

      Tester Display
      Activate the Circuit Relay
    13. Measure the fuel pressure.

      Standard Fuel Pressure

      196 to 833 kPa (2.0 to 8.5 kgf/cm2 , 28 to 121 psi)

      • If the fuel pressure is less than the standard, check the fuel hoses and their connections, fuel pump, fuel filter assembly and fuel main valve assembly.
      • If the result is not as specified, replace the fuel main valve assembly.
    14. Disconnect the Techstream from the DLC3.
    15. Put the engine in inspection mode (maintenance mode).

      Refer to INSPECTION MODE PROCEDURE [01/2017 - ]

    16. Start the engine.
    17. Measure the fuel pressure at idle.

      Standard Fuel Pressure

      196 to 833 kPa (2.0 to 8.5 kgf/cm2 , 28 to 121 psi)

      HINT: 

      Refer to Standard Idle Speed.

    18. Stop the engine.
    19. Check that the fuel pressure remains as specified for 5 minutes.

      Standard Fuel Pressure

      98 kPa (1.0 kgf/cm2 , 14 psi) or more

      If the result is not as specified, check the fuel pump, fuel main valve assembly and/or fuel injector assemblies.

    20. After checking the fuel pressure, disconnect the cable from the negative (-) auxiliary battery terminal and carefully remove SST to prevent fuel from spraying.
      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

      Refer to INITIALIZATION [01/2017 - 04/2020] , or refer to INITIALIZATION [04/2020 - 05/2023]

    21. Connect the fuel tube sub-assembly (for Port Injection).
      1. Connect the fuel tube sub-assembly to the fuel pipe.

        Refer to PRECAUTION [01/2017 - 05/2023] 

    22. Install new No. 2 fuel pipe clamp to the fuel tube connector.
    23. Inspect for fuel leaks.
  3. CHECK FUEL PRESSURE (for High Pressure) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Put the engine in inspection mode (maintenance mode).
    5. Start and warm up the engine.
    6. Enter the following menus: Powertrain / Engine / Active Test / Activate the Circuit Relay / Direct / Data List / Fuel Press (High).

      Powertrain > Engine > Active Test 

      Active Test Display
      Activate the Circuit Relay
      Data List Display
      Fuel Pressure (High)
    7. Check the high pressure side fuel pressure at idle (shift lever in N, engine warmed up and A/C off).

      Standard Fuel Pressure

      1800 to 2800 kPa (18.4 to 28.6 kgf/cm2 , 261 to 406 psi)

      If the result is not as specified, check the fuel pump, fuel pump assembly, fuel pressure sensor and wire harnesses.

    8. Stop the engine.
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