On-Vehicle Inspection [02/2024 - ]: Procedure

1. Check fuel pump operation.
   NOTE:

   Do not start the engine.

   Powertrain > Engine > Active Test 

   Tester Display
   Activate the Circuit Relay (Brushless)

   1. 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 from the fuel system after doing any maintenance or repairs. If there is a fuel leak, repair or replace parts as necessary.

Pre-procedure1

1. Discharge fuel system pressure.

   HINT: 

   Refer to PRECAUTION [02/2024 - ] 

2. Measure the battery voltage.

   Standard Voltage

   Specified Condition
   11 to 14 V

3. Remove the fuel pipe clamp from the fuel tube connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

4. Disconnect the fuel tube sub-assembly from the fuel pipe.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Refer to PRECAUTION [02/2024 - ] 

5. Install SST (EFI fuel pressure gauge) as shown in the illustration.

   Courtesy 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)

   • SST: 09268-45101 
     1. 09268-41250
     2. 09268-41260
     3. 09268-41280
     4. 09268-41500
     5. 09268-41700
     6. 95336-08070
6. Wipe up any spilled fuel.
7. Connect the cable to the negative (-) auxiliary battery terminal.

   HINT: 

   Refer to INSTALLATION [02/2024 - ]

   Procedure1

8. Measure the fuel pressure.
   NOTE:

   Do not start the engine.

   Powertrain > Engine > Active Test 

   Tester Display
   Activate the Circuit Relay (Brushless)

   Standard Fuel Pressure

   Specified Condition
   270 to 570 kPa 2.8 to 5.8 kgf/cm 2 39 to 83 psi

   • If the fuel pressure is more than the standard, replace the fuel main valve assembly.
   • If the fuel pressure is less than the standard, check the fuel hoses and their connections, fuel pump, fuel filter (fuel suction plate sub-assembly) and fuel main valve assembly.
9. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

10. Start the engine.
11. Measure the fuel pressure at idle.

    Standard Fuel Pressure

    Specified Condition
    270 to 570 kPa 2.8 to 5.8 kgf/cm 2 39 to 83 psi

    HINT: 

    Refer to Standard Idle Speed.

    Refer to PROCEDURE - Step 10

12. Stop the engine.
13. Check that the fuel pressure remains as specified for 5 minutes.

    Standard Fuel Pressure

    Specified Condition
    270 kPa or higher 2.8 kgf/cm 2 or higher 39 psi or higher

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

    Post-procedure1

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

    HINT: 

    Refer to REMOVAL [02/2024 - ]

15. Connect the fuel tube sub-assembly to the fuel pipe.

    HINT: 

    Refer to PRECAUTION [02/2024 - ] 

16. Install the fuel pipe clamp to the fuel tube connector and close the cover of the fuel pipe clamp.
17. Connect the cable to the negative (-) auxiliary battery terminal.

    HINT: 

    Refer to INSTALLATION [02/2024 - ]

18. Inspect for fuel leaks.

    See step  1

Pre-procedure1

1. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

2. 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.

   Powertrain > Engine > Data List 

   Tester Display
   Coolant Temperature

   Procedure1

3. According to the display on the GTS, read the Data List.

   Powertrain > Engine > Data List 

   Tester Display
   Engine Speed
   Fuel Pressure (High)
   Injection Mode

   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	2000 to 32000 kPa 20.4 to 326.3 kgf/cm 2 290 to 4640 psi

4. If the result is not as specified, check the fuel pump, fuel (engine room side) pump assembly, fuel pressure sensor and wire harnesses.

   Post-procedure1

5. None

Pre-procedure1

1. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

2. Start the engine, then enter the following menus: Powertrain / Engine / Active Test / Control the Select Cylinder Fuel Cut. Select a cylinder from #1 to #4.

   HINT: 

   Perform this procedure with the vehicle stopped and the engine idling.

   Powertrain > Engine > Active Test 

   Tester Display
   Control the Select Cylinder Fuel Cut

   Procedure1

3. After stopping injection of the cylinder for which the Active Test was performed, check the idling state.

   Standard

   The idling speed varies.

   NOTE:

   Perform a test for each cylinder. It is not possible to test multiple cylinders at once.

   Post-procedure1

4. None