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Home >> Scion >> 2016 >> iA Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting System (Interior) - Diagnostic Codes (B104187B - B120786) >> Lighting System >> DTC B1099-11: Right Position Light circuit short to ground [07/2015 - ] >> Procedure

DTC B1099-11: Right Position Light circuit short to ground [07/2015 - ]: Procedure

  1. DETERMINE MALFUNCTIONING LIGHT 
    1. Operate the headlight dimmer switch to the TNS (Parking Lights) position.
    2. Are there any lights among the following which are not illuminated?
      • Parking light (RH)/front side marker light (RH)
      • Taillight (LH)/rear side marker light (LH)
      • License plate light assembly (LH)
      • License plate light assembly (RH)

      Result

      Result Proceed to
      If all lights do not turn on Yes (A)
      If parking light (RH)/front side marker light (RH) does not turn on:
      • With headlight assembly (bulb type)
      		 Yes (B)
      If parking light (RH)/front side marker light (RH) does not turn on:
      • With headlight assembly (LED type)
      		 Yes (C)
      If taillight (LH)/rear side marker light (LH) and license plate light assembly (LH)/(RH) do not turn on Yes (D)
      - No

    Result:  1

    Yes (A) 

    See step  37

    Result:  5

    Yes (B) 

    See step  38

    Result:  3

    Yes (C) 

    See step  39

    Result:  2

    Yes (D) 

    See step  40

    Result:  4

    No 

    See step  17

  2. INSPECT POWER SOURCE CONTROL (POWER MANAGEMENT CONTROL ECU) CONNECTOR CONDITION 
    1. Switch the ignition off.
    2. Disconnect the negative battery cable.

      Refer to REMOVAL [07/2015 - ]

    3. Disconnect the power source control (power management control 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  36

    Result:  2

    Yes 

    See step  17

  3. VISUALLY INSPECT PARKING LIGHT BULB (RH)/FRONT SIDE MARKER LIGHT BULB (RH) 
    1. Visually inspect the parking light bulb (RH)/front side marker light bulb (RH).
    2. Is the parking light bulb (RH)/front side marker light bulb (RH) normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  35

    Result:  1

    Yes 

    See step  4

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

      Refer to REMOVAL [07/2015 - ]

    3. Disconnect the headlight assembly (RH) 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  34

    Result:  1

    Yes 

    See step  5

  5. INSPECT POWER SOURCE CONTROL (POWER MANAGEMENT CONTROL ECU) CONNECTOR CONDITION 
    1. Disconnect the power source control (power management control 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  33

    Result:  1

    Yes 

    See step  6

  6. INSPECT PARKING LIGHT (RH)/FRONT SIDE MARKER LIGHT (RH) CONTROL CIRCUIT FOR SHORT TO GROUND 
    1. Verify that the headlight assembly (RH) and power source control (power management control ECU) connectors are disconnected.
    2. Inspect for continuity between the following terminals (wiring harness-side) and body ground:
      • Headlight assembly (RH) terminal A26-2 (With headlight assembly (bulb type))
      • Headlight assembly (RH) terminal A25-2 (With headlight assembly (LED type))
    3. Is there continuity?

      Result

      Result Proceed to
      - Yes
      With headlight assembly (bulb type) No (A)
      With headlight assembly (LED type) No (B)

    Result:  1

    Yes 

    See step  30

    Result:  2

    No (A) 

    See step  31

    Result:  3

    No (B) 

    See step  32

  7. VERIFY IF MALFUNCTIONING LOCATION IS HEADLIGHT ASSEMBLY (RH) DEPENDING ON REPEATABILITY 
    1. Always reconnect all disconnected connectors.
    2. Connect the negative battery cable.

      Refer to REMOVAL [07/2015 - ]

    3. Clear the DTC for the power source control (power management control ECU) using the Techstream.

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

      Body Electrical > Electric Supply Unit > Clear DTCs 

    4. Operate the headlight dimmer switch to the TNS (Parking Lights) position.
    5. Retrieve the power source control (power management control ECU) DTCs using the Techstream.

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

      Body Electrical > Electric Supply Unit > Trouble Codes 

    6. Is the same DTC displayed?

      Result

      Result
      Yes
      No

    Result:  1

    No 

    See step  17

    Result:  2

    Yes 

    See step  29

  8. VISUALLY INSPECT TAILLIGHT BULB (LH)/ REAR SIDE MARKER LIGHT BULB (LH) 
    1. Visually inspect the taillight bulb (LH)/rear side marker light bulb (LH).
    2. Is the taillight bulb (LH)/rear side marker light bulb (LH) normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  28

    Result:  1

    Yes 

    See step  9

  9. VISUALLY INSPECT LISENCE PLATE LIGHT ASSEMBLY BULB (LH) 
    1. Visually inspect the license plate light assembly bulb (LH).
    2. Is the license plate light assembly bulb (LH) normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  27

    Result:  1

    Yes 

    See step  10

  10. VISUALLY INSPECT LISENCE PLATE LIGHT ASSEMBLY BULB (RH) 
    1. Visually inspect the license plate light assembly bulb (RH).
    2. Is the license plate light assembly bulb (RH) normal?

      Result

      Result
      Yes
      No

    Result:  2

    No 

    See step  26

    Result:  1

    Yes 

    See step  11

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

      Refer to REMOVAL [07/2015 - ]

    3. Disconnect the taillight (LH)/rear side marker 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  25

    Result:  1

    Yes 

    See step  12

  12. INSPECT LISENCE PLATE LIGHT ASSEMBLY (LH) CONNECTOR CONDITION 
    1. Disconnect the license plate light assembly (LH) 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  24

    Result:  1

    Yes 

    See step  13

  13. INSPECT LISENCE PLATE LIGHT ASSEMBLY (RH) CONNECTOR CONDITION 
    1. Disconnect the license plate light assembly (RH) 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  23

    Result:  1

    Yes 

    See step  14

  14. INSPECT POWER SOURCE CONTROL (POWER MANAGEMENT CONTROL ECU) CONNECTOR CONDITION 
    1. Disconnect the power source control (power management control 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  22

    Result:  1

    Yes 

    See step  15

  15. INSPECT TAILLIGHT (LH)/REAR SIDE MARKER LIGHT (LH), OR LICENSE PLATE LIGHT ASSEMBLY (LH)/(RH) CONTROL CIRCUIT FOR SHORT TO GROUND 
    1. Verify that the taillight (LH)/rear side marker light assembly (LH), license plate light assembly (LH), license plate light (RH) and power source control (power management control ECU) connectors are disconnected.
    2. Inspect for continuity between the following terminals (wiring harness-side) and body ground:
      • Taillight (LH)/rear side marker light (LH) terminal E37-2
      • License plate light assembly (LH) terminal E39-1
      • License plate light assembly (RH) terminal E40-1
    3. Is there continuity?

      Result

      Result
      Yes
      No

    Result:  1

    No 

    See step  16

    Result:  2

    Yes 

    See step  21

  16. VERIFY IF MALFUNCTIONING LOCATION IS REAR COMBINATION LIGHT ASSEMBLY (LH) DEPENDING ON REPEATABILITY 
    1. Always reconnect all disconnected connectors.
    2. Connect the negative battery cable.

      Refer to REMOVAL [07/2015 - ]

    3. Clear the DTC for the power source control (power management control ECU) using the Techstream.

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

      Body Electrical > Electric Supply Unit > Clear DTCs 

    4. Operate the headlight dimmer switch to the TNS (Parking Lights) position.
    5. Retrieve the power source control (power management control ECU) DTCs using the Techstream.

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

      Body Electrical > Electric Supply Unit > Trouble Codes 

    6. Is the same DTC displayed?

      Result

      Result
      Yes
      No

    Result:  1

    No 

    See step  18

    Result:  2

    Yes 

    See step  20

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

      Refer to REMOVAL [07/2015 - ]

    3. Clear the DTC for the power source control (power management control ECU) using the Techstream.

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

      Body Electrical > Electric Supply Unit > Clear DTCs 

    4. Operate the headlight dimmer switch to the TNS (Parking Lights) position.
    5. Retrieve the power source control (power management control ECU) DTCs using the Techstream.

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

      Body Electrical > Electric Supply Unit > Trouble Codes 

    6. Is the same DTC displayed?

      Result

      Result
      Yes
      No

    Result:  2

    Yes 

    See step  19

    Result:  1

    No 

    See step  18

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

      Result

      Result
      Yes
      No

    Result:  1

    No 

    DTC TROUBLESHOOTING COMPLETED. 

    Result:  2

    Yes 

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

    1. Refer to DIAGNOSTIC TROUBLE CODE CHART [07/2015 - ]
  19. REPEAT THE INSPECTION FROM STEP 1. 
    1. If the malfunction recurs, replace the power source control (power management control ECU).

      Refer to REMOVAL [07/2015 - ]

    2. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  18

  20. REPLACE THE REAR COMBINATION LIGHT ASSEMBLY (LH). 
    1. Refer to REMOVAL [07/2015 - ]
    2. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  21. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN FOLLOWING TERMINALS 
    • Taillight (LH)/rear side marker light (LH) terminal E37-2 - Power source control (power management control ECU) terminal E26-6
    • License plate light assembly (LH) terminal E39-1 - Power source control (power management control ECU) terminal E26-6
    • License plate light assembly (RH) terminal E40-1 - Power source control (power management control ECU) terminal E26-6

    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.

    If there is no common connector: 

    1. Repair or replace the wiring harness which has a short to ground.
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  22. REPAIR OR REPLACE THE CONNECTOR. 
    1. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  23. REPAIR OR REPLACE THE CONNECTOR. 
    1. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  24. REPAIR OR REPLACE THE CONNECTOR. 
    1. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  25. REPAIR OR REPLACE THE CONNECTOR. 
    1. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  26. REPLACE THE LICENSE PLATE LIGHT ASSEMBLY BULB (RH). 
    1. Refer to REPLACEMENT [07/2015 - ]
    2. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  27. REPLACE THE LICENSE PLATE LIGHT ASSEMBLY BULB (LH). 
    1. Refer to REPLACEMENT [07/2015 - ]
    2. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  28. REPLACE THE TAILLIGHT BULB (LH)/REAR SIDE MARKER LIGHT BULB (LH). 
    1. Refer to REPLACEMENT [07/2015 - ]
    2. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  29. REPLACE THE HEADLIGHT ASSEMBLY (RH). 
    1. Refer to REMOVAL [07/2015 - ]
    2. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  30. REFER TO THE WIRING DIAGRAM AND VERIFY WHETHER OR NOT THERE IS A COMMON CONNECTOR BETWEEN THE FOLLOWING TERMINALS 
    • Headlight assembly (RH) terminal A26-2 - Power source control (power management control ECU) terminal A27-4 (With headlight assembly (bulb type))
    • Headlight assembly (RH) terminal A25-2 - Power source control (power management control ECU) terminal A27-4 (With headlight assembly (LED type))

    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.

    If there is no common connector: 

    1. Repair or replace the wiring harness which has a short to ground.
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  31. WITH HEADLIGHT ASSEMBLY (BULB TYPE) 
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  32. WITH HEADLIGHT ASSEMBLY (LED TYPE) 
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  7

  33. REPAIR OR REPLACE THE CONNECTOR. 
    1. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  34. REPAIR OR REPLACE THE CONNECTOR. 
    1. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  35. REPLACE THE PARKING LIGHT BULB (RH)/FRONT SIDE MARKER LIGHT BULB (RH). 
    1. Refer to REPLACEMENT [07/2015 - ]
    2. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  36. REPAIR OR REPLACE THE CONNECTOR. 
    1. Then go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  17

  37. IF ALL LIGHTS DO NOT TURN ON 
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  2

  38. IF PARKING LIGHT (RH)/FRONT SIDE MARKER LIGHT (RH) DOES NOT TURN ON 
    • With headlight assembly (bulb type)
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  3

  39. IF PARKING LIGHT (RH)/FRONT SIDE MARKER LIGHT (RH) DOES NOT TURN ON 
    • With headlight assembly (LED type)
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  4

  40. IF TAILLIGHT (LH)/REAR SIDE MARKER LIGHT (LH) AND LICENSE PLATE LIGHT ASSEMBLY (LH)/(RH) DO NOT TURN ON 
    1. Go to the next step.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  8

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