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DTC B1D06-13: Left Turn Indicator Circuit Open: 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

      Body Electrical > Body Control Module > Clear DTCs 

    2. Retrieve the main body ECU DTCs using the Techstream.

      Refer to DTC CHECK / CLEAR

      Body Electrical > Body Control Module > Trouble Codes 

    3. Is the same DTC displayed?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  17

    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 or continue to be illuminated?
      • Front turn light (LH)
      • Rear turn light (LH)

      Result

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

    Result:  2

    Yes (B) 

    See step  4

    Result:  3

    Yes (C) 

    See step  10

    Result:  4

    No 

    See step  16

    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

    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  31

    Result:  2

    Yes 

    See step  16

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

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  30

    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

    3. Disconnect the headlight assembly 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  29

    Result:  1

    Yes 

    See step  6

  6. INSPECT HEADLIGHT ASSEMBLY (LH) GROUND CIRCUIT FOR OPEN CIRCUIT 
    1. Verify that the headlight assembly (LH) connector is disconnected.
    2. Inspect for continuity between the following terminals (wiring harness-side) and body ground:
      • Headlight assembly (LH) terminal A24-3 (With headlight assembly (bulb type)
      • Headlight assembly (LH) terminal A23-5 (With headlight assembly (LED type)
    3. Is there continuity?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  28

    Result:  1

    Yes 

    See step  7

  7. 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  27

    Result:  1

    Yes 

    See step  8

  8. INSPECT HEADLIGHT ASSEMBLY (LH) CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY 
    1. Verify that the headlight assembly (LH) and main body ECU connectors are disconnected.
    2. Connect the negative battery cable.

      Refer to INSTALLATION

    3. Switch the ignition ON (engine off or on).
    4. Measure the voltage at the main body ECU terminal A1-13 (wiring harness-side).
    5. Is the voltage 0 V?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  26

    Result:  1

    Yes 

    See step  9

  9. INSPECT HEADLIGHT ASSEMBLY (LH) CONTROL CIRCUIT FOR OPEN CIRCUIT 
    1. Switch the ignition off.
    2. Disconnect the negative battery cable.

      Refer to REMOVAL

    3. Verify that the headlight assembly (LH) and main body ECU connectors are disconnected.
    4. Inspect for continuity between the following terminals (wiring harness-side):
      • Headlight assembly (LH) terminal A24-5 - 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)
    5. Is there continuity?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  25

    Result:  1

    Yes 

    See step  10

  10. VISUALLY INSPECT REAR TURN LIGHT 
    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  24

    Result:  1

    Yes 

    See step  11

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

      Refer to REMOVAL

    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  23

    Result:  1

    Yes 

    See step  12

  12. INSPECT REAR TURN LIGHT (LH) GROUND CIRCUIT FOR OPEN CIRCUIT 
    1. Verify that the rear turn light (LH) connector is disconnected.
    2. Inspect for continuity between the following terminals (wiring harness-side) and body ground:
      • Rear turn light (LH) terminal E42-2
    3. Is there continuity?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  22

    Result:  1

    Yes 

    See step  13

  13. 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  21

    Result:  1

    Yes 

    See step  14

  14. INSPECT TURN LIGHT (LH) CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY 
    1. Verify that the side turn signal light assembly (LH), rear turn light (LH) and main body ECU connectors are disconnected.
    2. Connect the negative battery cable.

      Refer to INSTALLATION

    3. Switch the ignition ON (engine off or on).
    4. Measure the voltage at the main body ECU terminal E41-4 (wiring harness-side).
    5. Is the voltage 0 V?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  20

    Result:  1

    Yes 

    See step  15

  15. INSPECT TURN LIGHT (LH) CONTROL CIRCUIT FOR OPEN CIRCUIT 
    1. Switch the ignition off.
    2. Disconnect the negative battery cable.

      Refer to REMOVAL

    3. Verify that the side turn signal light assembly (LH), rear turn light (LH) and main body ECU connectors are disconnected.
    4. Inspect for continuity between the following terminals (wiring harness-side):
      • Rear turn light (LH) terminal E42-1 - main body ECU terminal E41-4
      • Outer rear view mirror (LH) terminal F30-5 - main body ECU terminal E41-4
    5. Is there continuity?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  19

    Result:  1

    Yes 

    See step  16

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

      Refer to INSTALLATION

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

      Refer to DTC CHECK / CLEAR

      Body Electrical > Body Control Module > Clear DTCs 

    4. Retrieve the main body ECU DTCs using the Techstream.

      Refer to DTC CHECK / CLEAR

      Body Electrical > Body Control Module > Trouble Codes 

    5. Is the same DTC displayed?

      Result

      Result
      Yes
      No

    Result:  2

    Yes 

    See step  18

    Result:  1

    No 

    See step  17

  17. 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. 

    Result:  2

    No 

    DTC TROUBLESHOOTING COMPLETED. 

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

      Refer to REMOVAL

    2. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  19. 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
    • Outer rear view mirror (LH) terminal E30-5 - 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 an open circuit.
      2. Repair or replace the malfunctioning part.
    2. If there is no common connector:

      Repair or replace the wiring harness which has an open circuit.

    3. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

  20. 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
    • Outer rear view mirror (LH) terminal F30-5 - 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 power supply.
      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 power supply.

    3. Go to Step 16.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

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

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  16

  22. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN THE FOLLOWING TERMINALS: 
    • Rear turn light (LH) terminal E42-2 - Body ground
    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 an open circuit.
      2. Repair or replace the malfunctioning part.
    2. If there is no common connector:

      Repair or replace the wiring harness which has an open circuit.

    3. Go to Step 16.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

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

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  16

  24. REPLACE THE REAR TURN SIGNAL LIGHT BULB (LH), THEN GO TO STEP 16. 
    1. Refer to REPLACEMENT

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

  25. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN THE FOLLOWING TERMINALS: 
    • Headlight assembly (LH) terminal A24-5 - 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 an open circuit.
      2. Repair or replace the malfunctioning part.
    2. If there is no common connector:

      Repair or replace the wiring harness which has an open circuit.

    3. Go to Step 16.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

  26. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN THE FOLLOWING TERMINALS: 
    • Headlight assembly (LH) terminal A24-5 - main body ECU terminal A1-13 (With headlight assembly (bulb type) and without headlight manual leveling system)
    • Headlight assembly (LH) terminal A23-7 - main body ECU terminal A1-13 (With headlight assembly (LED type) or headlight manual leveling system)
    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 power supply.
      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 power supply.

    3. Go to Step 16.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

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

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  16

  28. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN THE FOLLOWING TERMINALS: 
    • Headlight assembly (LH) terminal A24-3 - Body ground (With headlight assembly (bulb type)
    • Headlight assembly (LH) terminal A23-5 - Body ground (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 an open circuit.
      2. Repair or replace the malfunctioning part.
    2. If there is no common connector:

      Repair or replace the wiring harness which has an open circuit.

    3. Go to Step 16.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

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

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  16

  30. REPLACE THE FRONT TURN SIGNAL LIGHT BULB (LH), THEN GO TO STEP 16 
    1. Refer to REPLACEMENT

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  16

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

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  16

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