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METER / GAUGE SYSTEM, Diagnostic DTC:B1508

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DTC Code DTC Name
B1508 Short in Turn Signal / Hazard Flasher Circuit
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DESCRIPTION

This DTC is stored when the combination meter assembly detects a short in a turn signal light circuit.

Tip:

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

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B1508 Short in Turn Signal / Hazard Flasher Circuit

Diagnosis Condition:


  • Battery voltage is 10 V or more

Malfunction Status:


  • Short in turn signal light circuit

  • Clearance light assembly

  • Clearance light LED unit assembly

  • Outer mirror control ECU assembly

  • Side turn signal light assembly

  • Outer rear view mirror assembly

  • Air conditioning control assembly

  • Headlight control ECU sub-assembly

  • Windshield wiper switch assembly

  • Rear turn signal light bulb

  • Raer combination light socket and wire sub-assembly

  • Harness or connector

  • Combination meter assembly

 DTC stored -
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WIRING DIAGRAM


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  1. B006716E03
    B0066RYE02

    LH Side

  2. B006716E04
    B0066L1E02

    RH Side

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CAUTION / NOTICE / HINT

Note:

  • 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.

  • Inspect the turn signal light bulbs and sockets before performing the following procedure.

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PROCEDURE


  1. Click here

    CHECK LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      All LH turn signal lights do not blink A
      All RH turn signal lights do not blink B

  2. Click here

    CHECK LH SIDE LIGHTS (REAR TURN SIGNAL LIGHT)


    1. Disconnect the U41 rear combination light assembly LH connector.

    2. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the rear combination light assembly LH is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  3. Click here

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY)


    1. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U41-4 (TRN) or O4-9 (TRNL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. Click here

    CHECK LH SIDE LIGHTS (FRONT TURN SIGNAL LIGHT)


    1. Connect the O4 combination meter assembly connector.

    2. Disconnect the D4 clearance light assembly LH connector.

    3. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the clearance light assembly LH is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  5. Click here

    CHECK LH SIDE LIGHTS (HEADLIGHT CONTROL ECU SUB-ASSEMBLY LH)


    1. Connect the D4 clearance light assembly LH connector.

    2. Disconnect the A3 headlight control ECU sub-assembly LH connector.

    3. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the headlight control ECU sub-assembly LH is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  6. Click here

    CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      w/ Seat Position Memory System A
      w/o Seat Position Memory System B

  7. Click here

    CHECK LH SIDE LIGHTS (SIDE TURN SIGNAL LIGHT)


    1. Connect the A3 headlight control ECU sub-assembly LH connector.

    2. Disconnect the S12 outer mirror control ECU assembly LH connector.

    3. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the side turn signal light circuit is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  8. Click here

    CHECK LH SIDE LIGHTS (OUTER MIRROR CONTROL ECU ASSEMBLY LH)


    1. Connect the S12 outer mirror control ECU assembly LH connector.

    2. Disconnect the S13 outer mirror control ECU assembly LH connector.

    3. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights not blink, the outer mirror control ECU assembly LH is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  9. Click here

    CHECK LH SIDE LIGHTS (HARNESS AND CONNECTOR)


    1. Connect the S13 outer mirror control ECU assembly LH connector.

    2. Disconnect the S7 outer rear view mirror assembly LH connector.

    3. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights not blink, the harness or connector is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

    • AClick here

      GO TO STEP 11

    • B

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. Click here

    CHECK LH SIDE LIGHTS (SIDE TURN SIGNAL LIGHT)


    1. Connect the A3 headlight control ECU sub-assembly LH connector.

    2. Disconnect the S7 outer rear view mirror assembly LH connector.

    3. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the side turn signal light circuit is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  11. Click here

    CHECK LH SIDE LIGHTS (OUTER REAR VIEW MIRROR ASSEMBLY LH)


    1. Remove the side turn signal light assembly LH from outer rear view mirror assembly LH.

      Click here

    2. Connect the S7 outer rear view mirror assembly LH connector.

    3. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the side turn signal light assembly LH is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

    • A

      REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY LHClick here

    • B

      REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LHClick here

  12. Click here

    CHECK LH SIDE LIGHTS (AIR CONDITIONING CONTROL ASSEMBLY)


    1. Connect the S12 outer mirror control ECU assembly LH connector.*1

    2. Connect the S7 outer rear view mirror assembly LH connector.*2

    3. Disconnect the O64 air conditioning control assembly connector.

    4. Operate the headlight dimmer switch assembly and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the air conditioning control assembly is malfunctioning.


      • *1: w/ Seat Position Memory System

      • *2: w/o Seat Position Memory System

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  13. Click here

    CHECK LH SIDE LIGHTS (WINDSHIELD WIPER SWITCH ASSEMBLY)


    1. Connect the O64 air conditioning control assembly connector.

    2. Disconnect the O23 windshield wiper switch assembly connector.

    3. Operate the hazard warning signal switch and check that the LH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the LH side turn signal lights blink, the windshield wiper switch assembly is malfunctioning.

      Result
      Result Proceed to
      LH side turn signal lights blink A
      LH side turn signal lights do not blink B

  14. Click here

    CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LGIHT LH AND SIDE TURN SIGNAL LIGHT LH - COMBINATION METER ASSEMBLY)


    1. Disconnect the D4 clearance light assembly LH connector.

    2. Disconnect the S12 outer mirror control ECU assembly LH connector.*1

    3. Disconnect the S7 outer rear view mirror assembly LH connector.*2

    4. Disconnect the O64 air conditioning control assembly connector.

    5. Disconnect the A3 headlight control ECU sub-assembly LH connector.

    6. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D4-1 (B), S12-11 (TRNI)*1, S7-16 (B)*2, O64-10 (FRLY), A3-11 (TNS), O23-1 (TRNL) or O4-13 (LL) - Body ground Always 10 kΩ or higher

      • *1: w/ Seat Position Memory System

      • *2: w/o Seat Position Memory System

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. Click here

    CHECK RH SIDE LIGHTS (REAR TURN SIGNAL LIGHT)


    1. Disconnect the U5 rear combination light assembly RH connector.

    2. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights blink, the rear combination light assembly RH is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

  16. Click here

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY)


    1. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U5-4 (TRN) or O4-1 (TRNR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  17. Click here

    CHECK RH SIDE LIGHTS (FRONT TURN SIGNAL LIGHT)


    1. Connect the O4 combination meter assembly connector.

    2. Disconnect the D2 clearance light assembly RH connector.

    3. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights blink, the clearance light assembly RH is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

  18. Click here

    CHECK RH SIDE LIGHTS (HEADLIGHT CONTROL ECU SUB-ASSEMBLY RH)


    1. Connect the D2 clearance light assembly RH connector.

    2. Disconnect the A11 headlight control ECU sub-assembly RH connector.

    3. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights blink, the headlight control ECU sub-assembly RH is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

  19. Click here

    CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      w/ Seat Position Memory System A
      w/o Seat Position Memory System B

  20. Click here

    CHECK RH SIDE LIGHTS (SIDE TURN SIGNAL LIGHT)


    1. Connect the A11 headlight control ECU sub-assembly RH connector.

    2. Disconnect the R12 outer mirror control ECU assembly RH connector.

    3. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights blink, the side turn signal light circuit is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

  21. Click here

    CHECK RH SIDE LIGHTS (OUTER MIRROR CONTROL ECU ASSEMBLY RH)


    1. Connect the R12 outer mirror control ECU assembly RH connector.

    2. Disconnect the R13 outer mirror control ECU assembly RH connector.

    3. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights not blink, the outer mirror control ECU assembly RH is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

  22. Click here

    CHECK RH SIDE LIGHTS (HARNESS AND CONNECTOR)


    1. Connect the R13 outer mirror control ECU assembly RH connector.

    2. Disconnect the R7 outer rear view mirror assembly RH connector.

    3. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights not blink, the harness or connector is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

    • AClick here

      GO TO STEP 24

    • B

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  23. Click here

    CHECK RH SIDE LIGHTS (SIDE TURN SIGNAL LIGHT)


    1. Connect the D2 Clearance light assembly RH connector.

    2. Disconnect the R7 outer rear view mirror assembly RH connector.

    3. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights blink, the side turn signal light circuit is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

  24. Click here

    CHECK RH SIDE LIGHTS (OUTER REAR VIEW MIRROR ASSEMBLY RH)


    1. Remove the side turn signal light assembly RH from outer rear view mirror assembly RH.

      Click here

    2. Connect the R7 outer rear view mirror assembly RH connector.

    3. Operate the headlight dimmer switch assembly and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights blink, the side turn signal light assembly RH is malfunctioning.

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

    • A

      REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY RHClick here

    • B

      REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RHClick here

  25. Click here

    CHECK RH SIDE LIGHTS (WINDSHIELD WIPER SWITCH ASSEMBLY)


    1. Connect the R12 outer mirror control ECU assembly RH connector.*1

    2. Connect the R7 outer rear view mirror assembly RH connector.*2

    3. Disconnect the O23 windshield wiper switch assembly connector.

    4. Operate the hazard warning signal switch and check that the RH side turn signal lights other than the headlight turn signal light blink.

      Tip:

      If the RH side turn signal lights blink, the windshield wiper switch assembly is malfunctioning.


      • *1: w/ Seat Position Memory System

      • *2: w/o Seat Position Memory System

      Result
      Result Proceed to
      RH side turn signal lights blink A
      RH side turn signal lights do not blink B

  26. Click here

    CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LGIHT RH AND SIDE TURN SIGNAL LIGHT RH - COMBINATION METER ASSEMBLY)


    1. Disconnect the D2 clearance light assembly RH connector.

    2. Disconnect the A1 headlight assembly RH connector.

    3. Disconnect the R12 outer mirror control ECU assembly RH connector.*1

    4. Disconnect the R7 outer rear view mirror assembly RH connector.*2

    5. Disconnect the A11 headlight control ECU sub-assembly RH connector.

    6. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D2-1 (B), R12-11 (TRNI)*1, R7-16 (B)*2, A11-11 (TNS), O23-11 (TRNR) or O4-7 (LR) - Body ground Always 10 kΩ or higher

      • *1: w/ Seat Position Memory System

      • *2: w/o Seat Position Memory System

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE COMBINATION METER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR