On-Vehicle Inspection [08/2015 - ]: Procedure

CHECK FUEL PUMP OPERATION AND FOR FUEL LEAK
1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
  NOTE:
  Do not start the engine.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.
5. Check the fuel pump operation.
  1. Check for pressure in the fuel inlet tube from the fuel line. Check that the sound of fuel flowing in the fuel tank can be heard.
    If there is no sound, check the integration relay, fuel pump, ECM and wiring connector.
6. Inspect for fuel leaks (Refer to PROCEDURE - Step 18 ).

CHECK FUEL PRESSURE

Check the battery voltage (Refer to PRECAUTION [08/2015 - ] ).
Discharge the fuel system pressure (Refer to PRECAUTION [08/2015 - ] ).

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

NOTE:

w/ Navigation System:

After the engine switch is turned off, the display and navigation module display (navigation system) records various types of memory and settings. As a result, after turning the engine switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.

Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal

Condition	Waiting Time
Vehicle enrolled in safety connect system	6 minutes
Vehicle not enrolled in safety connect system	1 minute

When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [08/2015 - 08/2019] , or refer to INITIALIZATION [08/2019 - 08/2021] , or refer to INITIALIZATION [08/2021 - 08/2022] , or refer to INITIALIZATION [08/2022 - ] ).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the fuel pipe clamp from the fuel tube connector.

Disconnect the fuel hose (Refer to PRECAUTION [08/2015 - ] ).

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

SST: 09268-31014
1. 09268-41500
2. 09268-41700
3. 95336-08070
SST: 09268-45014
1. 09268-41200
2. 09268-41220
3. 09268-41250

TEXT IN ILLUSTRATION

*1	SST (T Joint)
*2	SST (Hose Band)
*3	SST (Gauge)
*4	Fuel Tube
*5	SST (Hose)
*6	SST (Fuel Tube Connector)

Wipe off any gasoline.
Reconnect the cable to the negative (-) battery terminal.
Operate the fuel pump.
1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
  NOTE:
  Do not start the engine.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.
Measure the fuel pressure.
Standard fuel pressure

321 to 327 kPa (3.27 to 3.33 kgf/cm² , 46.5 to 47.4 psi)

If the pressure is higher than the specification, replace the fuel pressure regulator.

If the pressure is below the specification, check the fuel hoses and connections, fuel pump, fuel filter and fuel pressure regulator.
Start the engine.
Measure the fuel pressure.
Standard fuel pressure

321 to 327 kPa (3.27 to 3.33 kgf/cm² , 46.5 to 47.4 psi)

If the pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
Stop the engine.
Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
Standard fuel pressure

147 kPa (1.5 kgf/cm² , 21 psi) or higher

If the pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove SST and the fuel tube connector to prevent gasoline from spraying.
Connect the fuel hose (Refer to PRECAUTION [08/2015 - ] ).
Inspect for fuel leaks (Refer to PROCEDURE - Step 18 ).