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DTC B1D06-11: Left Turn Indicator Circuit Short To Ground [07/2015 - ]: Procedure

  1. VERIFY MAIN BODY ECU DTCS AGAIN 
    1. Clear the DTC for the main body ECU using the Techstream.

      Refer to DTC CHECK / CLEAR [07/2015 - ]

      Body Electrical > Body Control Module > Clear DTCs 

    2. Operate the turn switch to the LH position.
    3. Retrieve the main body ECU DTCs using the Techstream.

      Refer to DTC CHECK / CLEAR [07/2015 - ]

      Body Electrical > Body Control Module > Trouble Codes 

    4. Is the same DTC displayed?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  13

    Result:  1

    Yes 

    See step  2

  2. DETERMINE MALFUNCTIONING LIGHT 
    1. Operate the turn switch to the LH position
    2. Are there any lights among the following which do not flash?
      • Front turn light (LH)
      • Rear turn light (LH)

      Result

      Result Proceed to
      All lights do not flash Yes (A)
      Front turn light (LH) does not flash Yes (B)
      Rear turn light (LH) do not flash Yes (C)
      - No

    Result:  3

    Yes (B) 

    See step  4

    Result:  4

    Yes (C) 

    See step  8

    Result:  2

    No 

    See step  12

    Result:  1

    Yes (A) 

    See step  3

  3. INSPECT MAIN BODY ECU CONNECTOR CONDITION 
    1. Switch the ignition off.
    2. Disconnect the negative battery cable.

      Refer to REMOVAL [07/2015 - ]

    3. Disconnect the main body ECU connector.
    4. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
    5. Is the connector normal?

      Result

      Result
      Yes
      No

    Result:  1

    No 

    See step  23

    Result:  2

    Yes 

    See step  12

  4. VISUALLY INSPECT FRONT TURN SIGNAL LIGHT BULB (LH) 
    1. Visually inspect the front turn signal light bulb (LH).
    2. Is the bulb normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  22

    Result:  1

    Yes 

    See step  5

  5. INSPECT HEADLIGHT ASSEMBLY (LH) CONNECTOR CONDITION 
    1. Switch the ignition off.
    2. Disconnect the negative battery cable.

      Refer to REMOVAL [07/2015 - ]

    3. Disconnect the headlight assembly (LH) connector.
    4. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
    5. Is the connector normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  21

    Result:  1

    Yes 

    See step  6

  6. INSPECT MAIN BODY ECU CONNECTOR CONDITION 
    1. Disconnect the main body ECU connector.
    2. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
    3. Is the connector normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  20

    Result:  1

    Yes 

    See step  7

  7. INSPECT HEADLIGHT ASSEMBLY (LH) CONTROL CIRCUIT FOR SHORT TO GROUND 
    1. Verify that the headlight assembly (LH) and main body ECU connectors are disconnected.
    2. Inspect for continuity between main body ECU terminal A1-13 (wiring harness-side) and body ground.
    3. Is there continuity?

      Result

      Result
      Yes
      No

    Result:  1

    Yes 

    See step  19

    Result:  2

    No 

    See step  12

  8. VISUALLY INSPECT REAR TURN SIGNAL LIGHT BULB (LH) 
    1. Visually inspect the rear turn signal light bulb (LH).
    2. Is the rear turn signal light bulb (LH) normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  18

    Result:  1

    Yes 

    See step  9

  9. INSPECT REAR TURN LIGHT (LH) CONNECTOR CONDITION 
    1. Switch the ignition off.
    2. Disconnect the negative battery cable.

      Refer to REMOVAL [07/2015 - ]

    3. Disconnect the rear turn light (LH) connector.
    4. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
    5. Is the connector normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  17

    Result:  1

    Yes 

    See step  10

  10. INSPECT MAIN BODY ECU CONNECTOR CONDITION 
    1. Disconnect the main body ECU connector
    2. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
    3. Is the connector normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  16

    Result:  1

    Yes 

    See step  11

  11. INSPECT TURN LIGHT (LH) CONTROL CIRCUIT FOR SHORT TO GROUND 
    1. Verify that the outer rear view mirror (LH), rear turn light (LH) and main body ECU connectors are disconnected.
    2. Inspect for continuity between main body ECU terminal E41-4 (wiring harness-side) and body ground.
    3. Is there continuity?

      Result

      Result
      Yes
      No

    Result:  2

    Yes 

    See step  15

    Result:  1

    No 

    See step  12

  12. VERIFY THAT REPAIRS HAVE BEEN COMPLETED 
    1. Always reconnect all disconnected connectors.
    2. Connect the negative battery cable.

      Refer to INSTALLATION [07/2015 - ]

    3. Clear the DTC for the main body ECU using the Techstream.

      Refer to DTC CHECK / CLEAR [07/2015 - ]

      Body Electrical > Body Control Module > Clear DTCs 

    4. Operate the turn switch to the LH position.
    5. Retrieve the main body ECU DTCs using the Techstream.

      Refer to DTC CHECK / CLEAR [07/2015 - ]

      Body Electrical > Body Control Module > Trouble Codes 

    6. Is the same DTC displayed?

      Result

      Result
      Yes
      No

    Result:  2

    Yes 

    See step  14

    Result:  1

    No 

    See step  13

  13. VERIFY IF OTHER DTCS DISPLAYED 
    1. Are any other DTCs displayed?

      Result

      Result
      Yes
      No

    Result:  1

    Yes 

    REPAIR OR REPLACE THE MALFUNCTIONING PART ACCORDING TO THE APPLICABLE DTC TROUBLESHOOTING. 

    1. Refer to DIAGNOSTIC TROUBLE CODE CHART [07/2015 - ]

    Result:  2

    No 

    DTC TROUBLESHOOTING COMPLETED. 

  14. REPEAT THE INSPECTION FROM STEP 1. 
    1. If the malfunction recurs, replace the main body ECU.

      Refer to INSTALLATION [07/2015 - ]

    2. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  13

  15. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN THE FOLLOWING TERMINALS: 
    • Rear turn light (LH) terminal E42-1 - main body ECU terminal E41-4
    1. If there is a common connector:
      1. Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
      2. Repair or replace the malfunctioning part.
    2. If there is no common connector:

      Repair or replace the wiring harness which has a short to ground.

    3. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  12

  16. REPAIR OR REPLACE THE CONNECTOR, THEN GO TO STEP 12. 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  12

  17. REPAIR OR REPLACE THE CONNECTOR, THEN GO TO STEP 12. 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  12

  18. REPLACE THE REAR TURN SIGNAL LIGHT BULB (LH), THEN GO TO STEP 12. 
    1. Refer to REPLACEMENT [07/2015 - ]

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  12

  19. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN THE FOLLOWING TERMINALS: 
    • Headlight assembly (LH) terminal D24-5 - main body ECU terminal A1-13 (With headlight assembly (bulb type)
    • Headlight assembly (LH) terminal A23-7 - main body ECU terminal A1-13 (With headlight assembly (LED type)
    1. If there is a common connector:
      1. Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
      2. Repair or replace the malfunctioning part.
    2. If there is no common connector:

      Repair or replace the wiring harness which has a short to ground.

    3. Go to Step 12.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  12

  20. REPAIR OR REPLACE THE CONNECTOR, THEN GO TO STEP 12. 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  12

  21. REPAIR OR REPLACE THE CONNECTOR, THEN GO TO STEP 12. 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  12

  22. REPLACE THE BULB, THEN GO TO STEP 12. 
    1. Refer to REPLACEMENT [07/2015 - ]

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  12

  23. REPAIR OR REPLACE THE CONNECTOR, THEN GO TO STEP 12. 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  12

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