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Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Engine Control System (T24A-FTS) - Diagnostic Codes (07 Of 11)) >> SFI System >> DTC P107A-15: Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Circuit Short to Battery or Open [10/2022 - ] >> Procedure

DTC P107A-15: Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Circuit Short to Battery or Open [10/2022 - ]: Procedure

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  1. CHECK HARNESS AND CONNECTOR 

    HINT: 

    Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

    1. Disconnect the No. 2 fuel pressure sensor (for low pressure side) connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.
      GTY1249909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Fuel Pressure Sensor (for Low Pressure Side))

      Standard Voltage

      Tester Connection Condition Specified Condition
      D11-1 (VC) - D11-3 (E2) Ignition switch ON 4.5 to 5.5 V
      D11-2 (PFL) - D11-3 (E2) Ignition switch ON 4.4 to 5.6 V
    4. Turn the ignition switch off and wait for at least 30 seconds.
    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D11-3 (E2) - Body ground Ignition switch off Below 1 Ω
      D11-1 (VC) - D11-2 (PFL) Ignition switch off 171 to 189 kΩ

      HINT: 

      Perform "Inspection After Repair" after replacing the No. 2 fuel pressure sensor (for low pressure side).

      Refer to INITIALIZATION [10/2022 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 2 FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE) 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (NO. 2 FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE) - ECM) 
    1. Disconnect the No. 2 fuel pressure sensor (for low pressure side) connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D11-3 (E2) - C88-120 (EPFL) Always Below 1 Ω
      D11-2 (PFL) - C88-121 (PFL) Always Below 1 Ω
      D11-2 (PFL) or C88-121 (PFL) - Other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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