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CHECK FUEL PUMP OPERATION
1. Connect the hand-held tester to the DLC3.
  
  Fig 1: Connecting Hand-Held Tester To DLC3
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the hand-held tester to the DLC3.
  2. Turn the ignition switch ON and push the hand-held tester main switch ON.
    NOTE: Do not start the engine.
  3. Select the ACTIVE TEST mode on the hand-held tester.
  HINT:
  
  Please refer to the hand-held tester operator's manual for further details.
  
  If you have no hand-held tester, connect the battery's positive (+) negative (-) leads the fuel pump connector (see step 3).
2. Check that there is pressure in the fuel inlet tube from the fuel line.
  
  Fig 2: Checking Pressure In Fuel Inlet Tube
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If there is fuel pressure, you will hear the sound of the fuel flowing.
  
  If there is no pressure, check the fusible link, fuses, EFI Main relay, fuel pump, ECM and wiring connector.
3. Turn the ignition switch OFF.
4. Disconnect the hand-held tester from the DLC3.
CHECK FUEL PRESSURE
1. Check the battery positive voltage is above 12 V.
2. Disconnect the negative (-) terminal cable from the battery.
3. Purchase a new fuel tube and remove the fuel tube connector from its pipe.
  Fuel tube: Part No. 23901-22110
  
  Fig 3: Identifying Fuel Tube Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Disconnect the fuel tube clamp from the fuel tube connector.
  
  Fig 4: Disconnecting Fuel Tube Clamp From Fuel Tube Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the fuel inlet tube (fuel tube connector) from the fuel pipe.
  
  Fig 5: Disconnecting Fuel Inlet Tube From Fuel Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

On-Vehicle Inspection

Use the Manual With the Right Hardware

When to See a Mechanic

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