SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P261029

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

DESCRIPTION

The soak timer operates after the power switch is turned off. When a certain amount of time has elapsed since the power switch was turned off, the soak timer activates the ECM to perform malfunction checks which can only be performed after the power switch is turned off. 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
B004P6CE23

MONITOR STRATEGY

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

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

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

  6. Turn the power switch on (IG).

  7. Turn the GTS on.

  8. Put the engine in Inspection Mode (Maintenance Mode).

    Click here

  9. Start the engine and warm it up.

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

  11. Turn the power switch on (IG).

  12. Turn the GTS on.

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

  14. 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.

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

  16. Input the DTC: P261029.

  17. 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 is NORMAL, the system is normal.

    • If the judgment result is ABNORMAL, the system is malfunctioning.

CAUTION / NOTICE / HINT

Tech Tips


  • DTC P261029 is stored if an internal ECM problem is detected. In this case, diagnostic 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.

PROCEDURE


  1. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P261029)


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

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


      Powertrain > Engine > Trouble Codes

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

      Result
      Proceed to
      NEXT

    NEXT

    END