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SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P01902A, P019064

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DTC Code DTC Name
P01902A Fuel Rail Pressure Sensor "A" Signal Stuck in Range
P019064 Fuel Rail Pressure Sensor "A" Signal Plausibility Failure
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DESCRIPTION

Refer to DTC P019011.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P01902A Fuel Rail Pressure Sensor "A" Signal Stuck in Range When target high pressure side fuel pressure changes, the change in fuel pressure sensor value is abnormal (2 trip detection logic).

  • Fuel pressure

  • Fuel pressure sensor (for high pressure side)

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

  • ECM

 Comes on DTC stored SAE Code: P0191
P019064 Fuel Rail Pressure Sensor "A" Signal Plausibility Failure Although engine has been stopped and left as is for a long time, high pressure side fuel pressure is higher or lower than threshold (2 trip detection logic).

  • Fuel pressure

  • Fuel pressure sensor (for high pressure side)

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

  • ECM

 Comes on DTC stored SAE Code: P0191
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MONITOR DESCRIPTION



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MONITOR STRATEGY

Required Sensors/Components (Main) Fuel pressure sensor (for high pressure side)
Required Sensors/Components (Related) Atmospheric pressure sensor (ECM)
Frequency of Operation Continuous
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CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

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

  5. Turn the engine switch off and wait for at least 30 seconds.

  6. Turn the engine switch on (IG) [A].

  7. Turn the GTS on.

  8. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].

  9. Drive the vehicle for 15 minutes or more [C].

    CAUTION:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

  10. Turn the engine switch off.

  11. With the engine stopped, leave the vehicle as is for 5 hours or more [D].

  12. Turn the engine switch on (IG) [E].

  13. Turn the GTS on.

  14. Enter the following menus: Powertrain / Engine / Trouble Codes [F].

  15. Read the pending DTCs.

    Tip:

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

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

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

  17. Input the DTC: P01902A or P019064.

  18. 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
    Tip:

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

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

    • If the judgment result is INCOMPLETE, perform steps [B] through [F] again.

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WIRING DIAGRAM

Refer to DTC P019011.

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CAUTION / NOTICE / HINT

Tip:

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.

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PROCEDURE


  1. Click here

    CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P01902A OR P019064)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Trouble Codes.

    5. Read the DTCs.


      1. Powertrain > Engine > Trouble Codes


      Result
      Result Proceed to
      DTC P01902A or P019064 is output A
      DTC P01902A or P019064 and P008700, P008800, P017100 or P017200 are output
      DTC P01902A or P019064 and other DTCs are output B
      Tip:

      • If DTC P01902A or P019064 and P008700, P008800, P017100 or P017200 are output simultaneously, troubleshoot for DTC P01902A or P019064 first.

      • If any DTCs other than P01902A or P019064 are output, troubleshoot those DTCs first.


  2. Click here

    CHECK FUEL LEAK


    1. Check around and beneath the vehicle for fuel leaks, fumes, etc.

      OK
      No fuel leaks present.
      Result
      Proceed to
      OK
      NG

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    PERFORM ACTIVE TEST USING GTS (CONTROL THE TARGET FUEL PRESSURE OFFSET)


    1. Connect the GTS to the DLC3.

    2. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure Offset / Data List / Coolant Temperature and High Fuel Pressure Sensor.


      1. Powertrain > Engine > Active Test
        Active Test Display
        Control the Target Fuel Pressure Offset
        Data List Display
        Coolant Temperature
        High Fuel Pressure Sensor






    5. Check the value of the Data List item "High Fuel Pressure Sensor" when the target fuel pressure is increased and decreased using the Active Test.

      Result
      Result Proceed to
      "High Fuel Pressure Sensor" value follows the change in target fuel pressure A
      "High Fuel Pressure Sensor" value does not follow the change in target fuel pressure B

  4. Click here

    CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) - ECM)


    1. Disconnect the ECM connector.

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d3-3 (PR) - C57-97 (PR) Always Below 1 Ω
      d3-2 (E2) - C57-96 (EPR) Always Below 1 Ω
      d3-3 (PR) or C57-97 (PR) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

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    REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE)


    1. Replace the fuel pressure sensor (for high pressure side).

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      Tip:

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

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      Result
      Proceed to
      NEXT

  6. Click here

    CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      1. Powertrain > Engine > Clear DTCs


    5. Turn the engine switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

  7. Click here

    CHECK WHETHER DTC OUTPUT RECURS (DTC P01902A OR P019064)


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the pending DTCs.


      1. Powertrain > Engine > Trouble Codes


      Result
      Result Proceed to
      DTCs are not output A
      DTC P01902A or P019064 is output B

  8. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the wire harness or connector.

      Result
      Proceed to
      NEXT

  9. Click here

    REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

  10. Click here

    REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE)


    1. Replace the fuel pressure sensor (for high pressure side).

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      Tip:

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

      Click here

      Result
      Proceed to
      NEXT

  11. Click here

    REPAIR OR REPLACE FUEL LEAK POINT


    1. Repair or replace the fuel leak point.

      Result
      Proceed to
      NEXT

  12. Click here

    CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      1. Powertrain > Engine > Clear DTCs


    5. Turn the engine switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

  13. Click here

    CHECK WHETHER DTC OUTPUT RECURS (DTC P01902A OR P019064)


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the pending DTCs.


      1. Powertrain > Engine > Trouble Codes


      OK
      DTCs are not output
      Result
      Proceed to
      NEXT

    • NEXT

      END