Precaution [09/2014 - 09/2020]

1. When using the Techstream:

   Check that the Active Test item "Fuel Pump Single Phase Energization" is displayed.

   • If the fuel suction tube with pump and gauge assembly is a brush type motor, the Active Test item "Fuel Pump Single Phase Energization" will not be displayed.
   • If the fuel suction tube with pump and gauge assembly is a brushless type motor, the Active Test item "Fuel Pump Single Phase Energization" will be displayed.
2. When not using the Techstream:

   Disconnect the fuel pump control ECU connectors.

   Refer to REMOVAL [09/2014 - ]

   Fig 1: Fuel Pump Control ECU Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *A

   for Brush Type Motor

   *B

   for Brushless Type Motor

1. Remove the No. 1 engine room relay block and No. 1 junction block assembly cover.
2. Remove the FUEL PMP fuse.
3. Start the engine. After the engine has stopped on its own, turn the engine switch off.
   NOTE:

   Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.

4. Crank the engine again and make sure that the engine does not start.

   HINT: 

   DTC P0171/P0174 (System Too Lean), P1603 (Engine Stall History), P1604 (Startability Malfunction) or P1605 (Rough Idling) may be stored. Clear the DTCs before proceeding to the next step.

   Refer to DTC CHECK / CLEAR [09/2014 - ]

5. Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.
6. Disconnect the cable from the negative (-) battery terminal.
   NOTE:

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

   Refer to INITIALIZATION [09/2014 - 08/2016] , or refer to INITIALIZATION [08/2016 - 11/2017] , or refer to INITIALIZATION [11/2017 - 03/2019] , or refer to INITIALIZATION [03/2019 - 01/2023]

7. Install the FUEL PMP fuse.
8. Install the No. 1 engine room relay block and No. 1 junction block assembly cover.

1. Remove the rear seat cushion assembly.

   Refer to PROCEDURE - Step 1

2. Remove the rear seat cushion lock hook.

   Refer to PROCEDURE - Step 2

3. Using a clip remover with its tip wrapped with protective tape, remove the rear floor service hole cover and butyl tape.
   Fig 2: Removing Rear Floor Service Hole Cover

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Protective Tape

4. Disconnect the fuel pump connector.
5. Start the engine. After the engine has stopped on its own, turn the engine switch off.
   NOTE:

   Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.

6. Crank the engine again and make sure that the engine does not start.

   HINT: 

   DTC P0171/P0174 (System Too Lean), P1603 (Engine Stall History), P1604 (Startability Malfunction) or P1605 (Rough Idling) may be stored. Clear the DTCs before proceeding to the next step.

   Refer to DTC CHECK / CLEAR [09/2014 - ]

7. Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.
8. Disconnect the cable from the negative (-) battery terminal.
   NOTE:

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

   Refer to INITIALIZATION [09/2014 - 08/2016] , or refer to INITIALIZATION [08/2016 - 11/2017] , or refer to INITIALIZATION [11/2017 - 03/2019] , or refer to INITIALIZATION [03/2019 - 01/2023]

9. Remove any remaining butyl tape from the rear floor service hole cover and vehicle body.
10. Clean and degrease the installation surfaces of the rear floor service hole cover and vehicle body.
11. Connect the fuel pump connector.
12. Install the rear floor service hole cover with new butyl tape.
13. Install the rear seat cushion lock hook.

    Refer to PROCEDURE - Step 6

14. Install the rear seat cushion assembly.

    Refer to PROCEDURE - Step 7

1. Discharge fuel system pressure.
2. Disconnect the fuel tube.
3. Drain the fuel remaining inside the fuel pump tube into a container.
4. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

Perform the following procedure when disconnecting a fuel tube connector.

1. Clamp Type:
   Fig 3: Identifying Fuel Pipe Clamp & Claw

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	EFI Fuel Pipe Clamp

   Remove the EFI fuel pipe clamp from fuel tube connector.

2. Cover Type:

   Pull off the fuel tube connector cover.

   Fig 4: Fuel Tube Connector Cover

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Fuel Tube Connector Cover
   	Pull off

3. Check that there is no dirt or other foreign matter around the fuel tube connector before disconnecting it. Clean the joint if necessary.
4. Pinch the retainer of the fuel tube connector, and then pull the fuel tube connector off of the fuel pipe.
   Fig 5: Pinch Retainer Of Fuel Tube Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Retainer
   *b	O-ring
   *c	Fuel Tube Connector
   *d	Nylon Tube
   *e	Fuel Pipe
   	Pinch
   	Pull

   NOTE:

   Be sure to disconnect the fuel tube connector by hand.

5. If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.
   NOTE:

   • Be sure to disconnect the fuel tube connector by hand.
   • Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.
   • Do not forcibly bend, twist or turn the nylon tube.
6. Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
7. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

Perform the following procedure when connecting a fuel tube connector.

1. Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.
2. After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
   Fig 6: Align The Fuel Tube Connector With The Fuel Pipe

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Pull

3. Clamp Type:

   Install the EFI fuel pipe clamp to the fuel tube connector.

4. Cover Type:

   Push in the fuel tube connector cover.

5. Inspect for fuel leaks.

   See step  1

Perform the following procedure when disconnecting a fuel tube connector.

1. Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.
   Fig 7: Disengage The 2 Claws Of The Retainer

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Retainer
   *b	Fuel Pipe
   *c	Nylon Tube
   *d	Fuel Tube Connector
   *e	O-ring
   *f	Claw
   	Push
   	Pull out
   	Pull off

   NOTE:

   Be sure to disconnect the fuel tube connector by hand.

2. If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.
   NOTE:

   • Be sure to disconnect the fuel tube connector by hand.
   • Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.
   • Do not forcibly bend, twist or turn the nylon tube.
3. Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
4. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

Perform the following procedure when connecting a fuel tube connector.

1. Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.
   Fig 8: Align The Fuel Tube Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Retainer
   *b	Claw
   	Push
   	Push in

2. Connect the fuel lines and push in the retainer to engage the 2 claws. Check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
3. Inspect for fuel leaks.

   See step  1

See step  1