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СИСТЕМА SFI, Diagnostic DTC:P261029

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DTC Code DTC Name
P261029 ECM/PCM Engine Off Timer Performance Signal Invalid
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DESCRIPTION

The soak timer operates after the ignition switch is turned off. When a certain amount of time has elapsed after turning the ignition switch off, the soak timer activates the ECM to perform malfunction checks which can only be performed after the engine is stopped. The soak timer is built into the ECM.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P261029 ECM/PCM Engine Off Timer Performance Signal Invalid ECM internal malfunction (2 trip detection logic). ECM Comes on DTC stored

SAE Code:

P2610
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MONITOR STRATEGY

Required Sensors/Components ECM
Frequency of Operation Once per driving cycle
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CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

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

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

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

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

  6. Start the engine.

  7. Idle the engine for 10 minutes or more.

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

  9. 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.

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

  11. Input the DTC: P261029.

  12. 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
    Tip:

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

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

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CAUTION / NOTICE / HINT

Tip:

  • DTC P261029 is set if an internal ECM problem is detected. Diagnostic procedures are not required. ECM replacement is required.

  • 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


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    REPLACE ECM


    1. Replace the ECM.

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      Result
      Proceed to
      NEXT

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    CHECK WHETHER DTC OUTPUT RECURS (DTC P261029)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.


      1. Powertrain > Engine > Clear DTCs


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

    6. Turn the ignition switch to ON.

    7. Turn the GTS on.

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

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


      1. Powertrain > Engine > Trouble Codes


    10. If no pending DTC is output, the repair has been successfully completed.

      Result
      Proceed to
      NEXT

    • NEXT

      END