SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P019023, P019024

DTC Code DTC Name
P019023 Fuel Rail Pressure Sensor "A" Signal Stuck Low
P019024 Fuel Rail Pressure Sensor "A" Signal Stuck High

DESCRIPTION

Refer to DTC P019011.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P019023 Fuel Rail Pressure Sensor "A" Signal Stuck Low 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
P019024 Fuel Rail Pressure Sensor "A" Signal Stuck High 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

MONITOR DESCRIPTION



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

CONFIRMATION DRIVING PATTERN

B005ORDE01

  1. Connect the GTS to the DLC3.

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

  5. Turn the engine switch on (IG) and turn the GTS on [A].

  6. Start the engine and warm it up [B].

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

    CAUTION:

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

  8. Turn the engine switch off.

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

  10. Turn the engine switch on (IG) and turn the GTS on [E].

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

  12. 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.

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

  14. Input the DTC: P019023 or P019024.

  15. 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
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    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 or N/A, perform steps [B] through [F] again.

WIRING DIAGRAM

Refer to DTC P019011.

Click here

CAUTION / NOTICE / HINT

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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P019023 OR P019024)


    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.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P019023 or P019024 is output A
      DTC P019023 or P019024, and P008700, P008800, P017100, P017200, P017400 and/or P017500 are output
      DTC P019023 or P019024 and other DTCs are output B

      Tech Tips


      • If DTC P019023 or P019024, and P008700, P008800, P017100, P017200, P017400 and/or P017500 are output simultaneously, troubleshoot for DTC P019023 or P019024 first.

      • If any DTCs other than P019023 or P019024 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. 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

    NG

    REPAIR OR REPLACE FUEL LEAK POINT Click here

    OK

  3. 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.

    3. Turn the GTS on.

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


      Powertrain > Engine > Active Test
      Active Test Display
      Control the Target Fuel Pressure Offset
      Data List Display
      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

    B

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

    A

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


    1. Disconnect the fuel pressure sensor (for high 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
      D61-3 (PR) - D2-87 (PR) Always Below 1 Ω
      D61-2 (E2) - D2-133 (ETHW) Always Below 1 Ω
      D61-3 (PR) or D2-87 (PR) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  5. REPLACE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE))


    1. Replace the fuel delivery pipe with sensor assembly LH (fuel pressure sensor (for high pressure side)).

      Click here

      Tech Tips

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

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK WHETHER DTC OUTPUT RECURS (DTC P019023 OR P019024)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

    6. Start the engine.

    7. Turn the GTS on.

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

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

    10. Read the pending DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P019023 or P019024 is output B

    A

    END

    B

  7. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 11 Click here

  8. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the wire harness or connector.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 11 Click here

  9. REPLACE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE))


    1. Replace the fuel delivery pipe with sensor assembly LH (fuel pressure sensor (for high pressure side)).

      Click here

      Tech Tips

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

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 11 Click here

  10. REPAIR OR REPLACE FUEL LEAK POINT


    1. Repair or replace the fuel leak point.

      Result
      Proceed to
      NEXT

    NEXT

  11. CHECK WHETHER DTC OUTPUT RECURS (DTC P019023 OR P019024)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

    6. Start the engine.

    7. Turn the GTS on.

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

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

    10. Read the pending DTCs.


      Powertrain > Engine > Trouble Codes
      OK
      DTCs are not output
      Result
      Proceed to
      NEXT

    NEXT

    END