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METER / GAUGE SYSTEM, Diagnostic DTC:B150819

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DTC Code DTC Name
B150819 Turn Signal/Hazard Flasher Circuit Current Above Threshold
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DESCRIPTION

When the operation signal of the turn signal switch (headlight dimmer switch assembly) is input, the combination meter assembly operates the turn signal lights on the RH and LH sides in response to switch operation. If there is a short in the turn signal light circuit, the combination meter assembly outputs B150819.

Tip:

If there is a short in a turn signal light circuit, all of the turn signal lights on the side with the short circuit will not blink.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B150819 Turn Signal/Hazard Flasher Circuit Current Above Threshold
  • Diagnosis Condition:

  • Auxiliary battery voltage is 7 V or more


  • Malfunction Status:

  • Short in turn signal light circuit

  • Headlight unit assembly

  • Headlight ECU sub-assembly

  • Side turn signal light assembly

  • Outer mirror actuator assembly

  • Front multiplex network door ECU

  • Rear combination light assembly

  • Rear light assembly

  • Combination meter assembly

  • Harness or connector

 DTC stored -
Figure 2. for Rear Side: B004YQCE01
Figure 1. for Front Side:
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • Inspect the LEDs for this system before performing the following procedure.

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

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PROCEDURE


  1. Click here

    INSPECT LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      Front turn signal light LH and side turn signal light LH does not blink. A
      Front turn signal light RH and side turn signal light RH does not blink. B
      Rear turn signal light LH does not blink. C
      Rear turn signal light RH does not blink. D

  2. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  3. Click here

    CHECK HEADLIGHT ECU SUB-ASSEMBLY LH


    1. Disconnect the A31 headlight ECU sub-assembly LH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  4. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  5. Click here

    CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH


    1. Disconnect the H31 front multiplex network door ECU LH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  6. Click here

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBL - BODY GROUND)


    1. Disconnect the G35 combination meter assembly connector.

    2. Disconnect the A31 headlight ECU sub-assembly LH connector.

    3. Disconnect the H31 front multiplex network door ECU LH connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      G35-13 (LL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  8. Click here

    CHECK HEADLIGHT UNIT ASSEMBLY LH


    1. Remove the headlight unit assembly LH.

      Click here

    2. Reconnect the A31 headlight ECU sub-assembly LH connector.

    3. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  9. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  10. Click here

    CHECK OUTER MIRROR ACTUATOR ASSEMBLY LH


    1. Disconnect the z38 outer mirror actuator assembly LH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  11. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  12. Click here

    CHECK SIDE TURN SIGNAL LIGHT ASSEMBLY LH


    1. Disconnect the z10 side turn signal light assembly LH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

    • A

      REPLACE OUTER MIRROR ACTUATOR ASSEMBLY LHClick here

    • B

      REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY LHClick here

  13. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  14. Click here

    CHECK HEADLIGHT ECU SUB-ASSEMBLY RH


    1. Disconnect the A32 headlight ECU sub-assembly RH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  15. Click here

    CHECK FRONT MULTIPLEX NETWORK DOOR ECU RH


    1. Disconnect the H12 front multiplex network door ECU RH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  16. Click here

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBL - BODY GROUND)


    1. Disconnect the G35 combination meter assembly connector.

    2. Disconnect the A32 headlight ECU sub-assembly RH connector.

    3. Disconnect the H12 front multiplex network door ECU RH connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      G35-7 (LR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  17. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  18. Click here

    CHECK HEADLIGHT UNIT ASSEMBLY RH


    1. Remove the headlight unit assembly RH.

      Click here

    2. Reconnect the A32 headlight ECU sub-assembly RH connector.

    3. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  19. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  20. Click here

    CHECK OUTER MIRROR ACTUATOR ASSEMBLY RH


    1. Disconnect the z37 outer mirror actuator assembly RH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  21. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  22. Click here

    CHECK SIDE TURN SIGNAL LIGHT ASSEMBLY RH


    1. Disconnect the z9 side turn signal light assembly RH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

    • A

      REPLACE OUTER MIRROR ACTUATOR ASSEMBLY RHClick here

    • B

      REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY RHClick here

  23. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  24. Click here

    CHECK REAR LIGHT LENS AND BODY LH


    1. Disconnect the L86 rear light assembly LH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  25. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  26. Click here

    CHECK REAR COMBINATION LIGHT LENS AND BODY LH


    1. Disconnect the L82 rear combination light assembly LH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  27. Click here

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBL - BODY GROUND)


    1. Disconnect the G35 combination meter assembly connector.

    2. Disconnect the L86 rear light assembly LH connector.

    3. Disconnect the L82 rear combination light assembly LH connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      G35-11 (TRNL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  28. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  29. Click here

    CHECK REAR COMBINATION LIGHT LENS AND BODY LH


    1. Disconnect the L82 rear combination light assembly LH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

    • A

      REPLACE REAR LIGHT LENS AND BODY LHClick here

    • B

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  30. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  31. Click here

    CHECK REAR LIGHT LENS AND BODY RH


    1. Disconnect the L90 rear light assembly RH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  32. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  33. Click here

    CHECK REAR COMBINATION LIGHT LENS AND BODY RH


    1. Disconnect the L81 rear combination light assembly RH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

  34. Click here

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBL - BODY GROUND)


    1. Disconnect the G35 combination meter assembly connector.

    2. Disconnect the L90 rear light assembly RH connector.

    3. Disconnect the L81 rear combination light assembly RH connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      G35-5 (TRNR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  35. Click here

    CLEAR DTC


    1. Clear the DTC.

      Click here


      1. Body Electrical > Combination Meter > Clear DTCs


      Result
      Proceed to
      NEXT

  36. Click here

    CHECK REAR COMBINATION LIGHT LENS AND BODY RH


    1. Disconnect the L81 rear combination light assembly RH connector.

    2. Check for DTC.

      Click here


      1. Body Electrical > Combination Meter > Trouble Codes


      Result
      Result Proceed to
      DTC B150819 is output. A
      DTC B150718 is output. B

    • A

      REPLACE REAR LIGHT LENS AND BODY RHClick here

    • B

      REPAIR OR REPLACE HARNESS OR CONNECTOR