СИСТЕМА ECD, Diagnostic DTC:P0168

DTC Code DTC Name
P0168 Fuel Temperature Too High

DESCRIPTION

Refer to DTC P0180.

Click hereНажмите здесь

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0168 Fuel Temperature Too High

Both of following conditions are met (1 trip detection logic):

  • The engine speed is higher than 1400 rpm.

  • The fuel temperature is 110°C (230°F) or higher for 1 second or more.

Fuel lines or fuel filter clogged Comes on DTC stored

CONFIRMATION DRIVING PATTERN

DTC No. DTC Detection Drive Pattern
P0168 Drive vehicle at high speed or with heavy load (Use freeze frame data from time malfunction occurred as reference while driving)

CAUTION / NOTICE / HINT

Note:

After replacing the supply pump assembly, the ECM needs initialization.

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Tip:

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE

  1. CHECK DTC OUTPUT (IN ADDITION TO DTC P0168)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    4. Read the DTCs.

      Powertrain > Engine and ECT > Trouble Codes
      Result
      ResultProceed to
      DTC P0168 is outputA
      DTC P0168 and other DTCs are outputB
      Tip:

      If any DTCs other than P0168 are output, troubleshoot those DTCs first.

    B

    GO TO DTC CHART Click here Нажмите здесь


    A
  2. CHECK SUPPLY PUMP ASSEMBLY

    1. Perform a visual inspection of the exterior of the supply pump assembly and check that there are no fuel leaks.

      OK
      There are no fuel leaks or stains.
      Result
      Proceed to
      OK
      NG
    NG Нажмите здесь

    OK
  3. REPLACE FUEL FILTER ELEMENT SUB-ASSEMBLY

    1. Replace the fuel filter element sub-assembly.

      Click hereНажмите здесь

      Result
      Proceed to
      NEXT
    NEXT Нажмите здесь

    GO TO STEP 7


  4. REPLACE SUPPLY PUMP ASSEMBLY

    1. Replace the supply pump assembly.

      Click hereНажмите здесь

      Result
      Proceed to
      NEXT
    NEXT
  5. BLEED AIR FROM FUEL SYSTEM

    1. Bleed the air from the fuel system.

      Click hereНажмите здесь

      Result
      Proceed to
      NEXT
    NEXT
  6. PERFORM SUPPLY PUMP INITIALIZATION

    1. Perform the supply pump initialization.

      Click hereНажмите здесь

      Result
      Proceed to
      NEXT
    NEXT
  7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs
    5. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Fuel Temperature.

      Powertrain > Engine and ECT > Data List
      Tester Display
      Fuel Temperature
    6. Drive the vehicle in a city area and check that the value of Fuel Temperature does not exceed 110°C (230°F).

      Result
      Proceed to
      NEXT
    NEXT

    END