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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel System (2GR-FKS) - Service Information >> FUEL PUMP (for High Pressure) >> On-Vehicle Inspection [12/2019 - 10/2022] >> Procedure

On-Vehicle Inspection [12/2019 - 10/2022]: Procedure

  1. FUEL PUMP ASSEMBLY OPERATION 
    1. Check fuel pressure.
      1. Start the engine.
      2. Check that the fuel pressure fluctuates when the target fuel pressure changes.

        Powertrain > Engine > Active Test 

        Active Test Display
        Control the Target Fuel Pressure Offset
        Data List Display
        Fuel Pressure (High)

        HINT: 

        The target fuel pressure operation decreases the target fuel pressure by 12.5% or increases the target fuel pressure by 24.8%.

        If the result is not as specified, replace the fuel pump assembly or fuel pressure sensor (fuel delivery pipe with sensor assembly LH).

    2. Check operating sound.
      1. Remove the V-bank cover sub-assembly.

        Refer to PROCEDURE - Step 23 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 23 [09/2020 - 10/2022]

      2. Start the engine.
      3. Using a sound scope, check the operating sound of the fuel pump assembly.

        If no sound can be heard, check the fuel pump assembly, wire harness and ECM.

      4. Stop the engine.
      5. Install the V-bank cover sub-assembly.

        Refer to PROCEDURE - Step 52 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 52 [09/2020 - 10/2022]

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