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Home >> Toyota >> 2022 >> Corolla Cross L, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Fuel System (M20A-FXS) - Inspection) >> Fuel System >> On-Vehicle Inspection [11/2022 - ] >> Procedure

On-Vehicle Inspection [11/2022 - ]: Procedure

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  1. CHECK FUEL PUMP OPERATION AND INSPECT FOR FUEL LEAK 
    1. Check fuel pump operation.
      1. Connect the GTS to the DLC3.
      2. Turn the ignition switch to ON (IG).
        NOTE:

        Do not start the engine.

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

        Powertrain > Engine > Active Test 

        Tester Display
        Activate the Circuit Relay (Brushless)
      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 sound can be heard, check the fuel pump, ECM and wiring connectors.
    2. Inspect for fuel leaks.
      1. Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs. If there is a fuel leak, repair or replace parts as necessary.
    3. Turn the ignition off.
    4. Disconnect the GTS from the DLC3.
  2. CHECK FUEL PRESSURE 
    1. Discharge the fuel system pressure.

      Refer to PRECAUTION [11/2022 - ] 

    2. Measure the auxiliary battery voltage.

      Standard Voltage

      11 to 14 V

    3. Disconnect the cable from the negative (-) auxiliary battery terminal.

      Refer to REMOVAL [11/2022 - ]

    4. Open the cover of the fuel pipe clamp and remove the fuel pipe clamp from the fuel tube connector.
      GTY1107818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Open
      Pull
    5. Disconnect the fuel tube sub-assembly from the fuel pipe.

      Refer to PRECAUTION [11/2022 - ] 

      GTY1105090Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Install SST (EFI fuel pressure gauge) as shown in the illustration.
      GTY1105160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a SST (Pressure Gauge)
      *b SST (Hose Joint)
      *c SST (Hose)
      *d SST (T-joint)
      *e SST (Fuel Tube Connector)
      *f SST (Hose Band)
      *g Fuel Pipe (Vehicle Side)
      • SST: 09268-00010 
        1. 09268-00020
        2. 09268-00030
      • SST: 09268-45101 
        1. 09268-41260
        2. 09268-41280
        3. 09268-41700
        4. 95336-08070
    7. Wipe up any spilled fuel.
    8. Connect the cable to the negative (-) auxiliary battery terminal.

      Refer to INSTALLATION [11/2022 - ]

    9. Connect the GTS to the DLC3.
    10. Turn the ignition switch to ON (IG).
      NOTE:

      Do not start the engine.

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

      Powertrain > Engine > Active Test 

      Tester Display
      Activate the Circuit Relay (Brushless)
    13. Measure the fuel pressure.

      Standard Fuel Pressure

      300 to 640 kPa (3.1 to 6.5 kgf/cm2 , 44 to 93 psi)

      • If the fuel pressure is more than the standard, replace the fuel pressure regulator assembly.
      • If the fuel pressure is less than the standard, check the fuel hoses and their connections, fuel pump and fuel pressure regulator assembly.
    14. Put the engine in Inspection Mode (Maintenance Mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    15. Start the engine.
    16. Measure the fuel pressure at idle.

      Standard Fuel Pressure

      300 to 640 kPa (3.1 to 6.5 kgf/cm2 , 44 to 93 psi)

      HINT: 

      Refer to Standard Idle Speed.

      Refer to PROCEDURE - Step 5

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

      Standard Fuel Pressure

      98 kPa (1.0 kgf/cm2 , 14.2 psi) or more

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

    19. After checking the fuel pressure, disconnect the cable from the negative (-) auxiliary battery terminal and carefully remove SST to prevent fuel from spraying.
    20. Connect the fuel tube sub-assembly to the fuel pipe.

      Refer to PRECAUTION [11/2022 - ] 

    21. Install the fuel pipe clamp to the fuel tube connector and close the cover of the fuel pipe clamp.
    22. Inspect for fuel leaks.

      See step  1

  3. CHECK FUEL PRESSURE (for High Pressure) 
    1. Connect the GTS to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the GTS on.
    4. Put the engine in Inspection Mode (Maintenance Mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    5. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
    6. Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Coolant Temperature, Fuel Pressure (High) and Injection Mode.

      Powertrain > Engine > Data List 

      Tester Display
      Engine Speed
      Coolant Temperature
      Fuel Pressure (High)
      Injection Mode
    7. According to the display on the GTS, read the Data List.

      HINT: 

      During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, read the Data List after charge control has completed.

      Standard

      GTS Display Condition Specified Condition
      Fuel Pressure (High)
      • Shift position: P
      • A/C: Off
      • Engine warmed up
      • Engine Speed: 2500 rpm
      • Injection Mode: Direct
      		 3000 to 25000 kPag

      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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