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MIL Circuit [09/2015 - ]: Procedure

  1. CHECK THAT MIL IS ILLUMINATED 
    1. Perform troubleshooting in accordance with the table below.

      Result

      MIL Condition Proceed to
      Illuminates → Turns off Engine switch on (IG) → engine is started A
      Other than above - B

    Result: 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [09/2015 - ] 

    Result: 

    See step  2

  2. CHECK COMMUNICATION BETWEEN TECHSTREAM AND ECM 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Check the communication between the Techstream and ECM.

      HINT: 

      It can be checked using the "Engine" item of the Data List.

      Result

      Result Proceed to
      Communication is possible A
      Communication is not possible B

    Result: 

    GO TO VC OUTPUT CIRCUIT. Refer to  VC Output Circuit [09/2015 - ] 

    Result: 

    See step  3

  3. CHECK WHETHER DTC OUTPUT RECURS 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: System Select / Health Check.
    5. Check if any DTCs have been detected. Note down any DTCs.

      Result

      Result Proceed to
      DTCs are not output A
      Any DTCs is output B

      HINT: 

      Check for detected DTCs output from other ECUs which relate to the MIL.

    Result: 

    REPAIR CIRCUIT INDICATED BY OUTPUT 

    Result: 

    See step  4

  4. PERFORM ACTIVE TEST USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Combination Meter / Active Test / Check Engine Indicator.

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Check Engine Indicator
    5. Check the status of the MIL while performing the Active Test.

      Result

      Result Proceed to
      Changes A
      Does not change B

    Result: 

    REPLACE ECM. Refer to  REMOVAL [09/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019]  , or refer to  REMOVAL [08/2019 - ] 

    Result: 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [09/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019]  , or refer to  REMOVAL [08/2019 - ]