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Home >> Mitsubishi >> 2023 >> Outlander ES, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 5) >> DTC/Circuit Diagnosis >> DTC P0136: O2 Sensor 2 Bank 1 >> DTC Description >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. PRECONDITIONING 

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.

    >>: GO TO 2 

  2. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A 
    1. Start engine and warm it up to normal operating temperature.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
    4. Let engine idle for 2 minutes.
    5. Check 1st trip DTC.

    Is 1st trip DTC detected? 

    YES >>: Refer to DTC DIAGNOSIS PROCEDURE .

    NO-1 >>: With M.U.T.-III SE:

    GO TO 3 

    NO-2 >>: Without M.U.T.-III SE:

    GO TO  5

  3. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B 
    NOTE: For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30°C (32 to 86°F).
    1. Turn ignition switch ON and select "DATA MONITOR" mode of "ENGINE" using M.U.T.-III SE.
    2. Start engine and warm it up to normal operating temperature.
    3. Turn ignition switch OFF and wait at least 10 seconds.
    4. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
    5. Let engine idle for 1 minute.
    6. Make sure that "COOLANT TEMP/S" indication is more than 70°C (158°F).

      If not, warm up engine and go to next step when "COOLANT TEMP/S" indication reaches 70°C (158°F).

    7. Open engine hood.
    8. Select "HO2S2 (B1) P1146" of "HO2S2" in "DTC WORK SUPPORT" mode of "ENGINE" using M.U.T.-III SE.
    9. Follow the instruction of M.U.T.-III SE.
      NOTE: It will take at most 10 minutes until "COMPLETED" is displayed.
    10. Touch "SELF-DIAG RESULT".

    Which is displayed on M.U.T.-III SE 

    OK >>

    INSPECTION END

    NG >>

    Refer to DTC DIAGNOSIS PROCEDURE .

    CAN NOT BE DIAGNOSED >>

    GO TO 4 

  4. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B AGAIN 
    1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
    2. Perform DTC confirmation procedure again.

    >>: GO TO  3

  5. PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B 

    Perform component function check. Refer to COMPONENT FUNCTION CHECK .

    NOTE: Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st trip DTC might not be confirmed.

    Is the inspection result normal? 

    YES-1 >>

    To check malfunction symptom before repair: Refer to INTERMITTENT INCIDENT .

    YES-2 >>

    Confirmation after repair: INSPECTION END

    NO >>: Proceed to DTC DIAGNOSIS PROCEDURE .

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