SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P107A15

DTC Code DTC Name
P107A15 Fuel Rail Pressure Sensor (Low) Circuit Short to Battery or Open

DESCRIPTION

Refer to DTC P107A11.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P107A15 Fuel Rail Pressure Sensor (Low) Circuit Short to Battery or Open Open or short in fuel pressure sensor (for low pressure side) circuit for 3 seconds or more (1 trip detection logic).

  • Open or short in fuel pressure sensor (for low pressure side) circuit

  • Fuel pressure sensor (for low pressure side)

  • ECM

 Comes on DTC stored SAE: P107D

Tech Tips

When a DTC is output, check the Data List item "Fuel Pressure (Low)" using the GTS.

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DTC No. Fuel Pressure (Low) Malfunction
P107A15 Approximately 750 kPag or higher

  • Short in VCPF circuit to PFL circuit

  • Open in PFL circuit

  • Open in EPFL circuit

If the Data List displays a normal value, the normal value may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

MONITOR DESCRIPTION

These DTCs are stored if the fuel pressure sensor (for low pressure side) output voltage is out of the standard range due to an open or short in the sensor circuit.

MONITOR STRATEGY

Required Sensors/Components Fuel pressure sensor (for low pressure side)
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off and wait for at least 30 seconds.

  5. Turn the power switch on (IG) and turn the GTS on.

  6. Put the engine in Inspection Mode (2WD for measuring Exhaust Gas).

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  7. Start the engine.

  8. Idle the engine for 10 seconds [A].

  9. Enter the following menus: Powertrain / Engine / Trouble Codes [B].

  10. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  12. Input the DTC: P107A15.

  13. Check the DTC judgment result.

    GTS Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE, perform steps [A] and [B] again.

WIRING DIAGRAM

Refer to DTC P107A11.

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CAUTION / NOTICE / HINT

Note


  • Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.

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    (Select Powertrain in Health Check and then check the time stamp data.)

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  • If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

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Tech Tips

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR

    Tech Tips

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


    1. B000T5HC40
      *a

      Front view of wire harness connector

      (to Fuel Pressure Sensor (for Low Pressure Side))

      Disconnect the fuel pressure sensor (for low pressure side) connector.

    2. Turn the power switch on (IG).

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      G24-1 (VC) - G24-3 (E2) Power switch on (IG) 4.75 to 5.25 V
      G24-2 (PFL) - G24-3 (E2) Power switch on (IG) 3.0 to 5.0 V

    4. Turn the power 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
      G24-3 (E2) - Body ground Always Below 1 Ω
      G24-1 (VC) - G24-2 (PFL) Power switch off 171 to 189 kΩ
      Result
      Proceed to
      OK
      NG

      Tech Tips

      Perform "Inspection After Repair" after replacing the fuel pressure sensor (for low pressure side).

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    OK

    REPLACE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY (FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE)) Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (ECM - FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE))


    1. Disconnect the ECM connector.

    2. Disconnect the fuel pressure sensor (for low pressure side) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G1-79 (PFL) - G24-2 (PFL) Always Below 1 Ω
      G1-112 (EPFL) - G24-3 (E2) Always Below 1 Ω
      G1-79 (PFL) or G24-2 (PFL) - Other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR