METER / GAUGE SYSTEM, Diagnostic DTC:B1507, B1508

DTC Code DTC Name
B1507 Open in Turn Signal Circuit
B1508 Short in Turn Signal / Hazard Flasher Circuit

DESCRIPTION

These DTCs are stored when the combination meter sub-assembly detects an open in a turn signal light circuit, a short in a turn signal light circuit, or a short in the hazard warning light circuit.

DTC No. DTC Detection Condition Trouble Area
B1507

When IG voltage is 9.5 V or more and the following condition is detected:


  1. Open in turn signal light circuit

  • Harness or connector

  • Bulb

  • Instrument panel junction block assembly

  • Combination meter sub-assembly (Meter circuit plate)
B1508

When IG voltage is 9.5 V or more and the following condition is detected:


  1. Short in turn signal light circuit or hazard warning light circuit

  • Harness or connector

  • Bulb

  • Instrument panel junction block assembly

  • Combination meter sub-assembly (Meter circuit plate)

WIRING DIAGRAM

A005D1KE02

CAUTION / NOTICE / HINT

Note

Inspect the bulbs for this system before performing the following inspection procedure.

PROCEDURE


  1. INSPECT LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      Turn signal lights for one side do not illuminate. A
      Front turn signal light does not illuminate. B
      Rear turn signal light does not illuminate. C
      Side turn signal light does not illuminate. D

    B

    CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Click here

    D

    CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER SUB-ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the L125 combination meter sub-assembly connector.

    2. Disconnect the 2A instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      for LH
      Tester Connection Condition Specified Condition
      L125-3 (LL) - 2A-22 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      L125-5 (LR) - 2A-17 Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      L125-3 (LL) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      L125-5 (LR) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the C8*1 or C7*2 front turn signal light connector.


      • *1: for LH

      • *2: for RH

    2. Disconnect the 2C instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      for LH
      Tester Connection Condition Specified Condition
      C8-3 - 2C-17 Always Below 1 Ω
      C8-4 - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      C7-3 - 2C-36 Always Below 1 Ω
      C7-4 - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      C8-3 - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      C7-3 - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  4. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the R17*1 or S18*2 rear turn signal light connector.


      • *1: for LH

      • *2: for RH

    2. Disconnect the 2D instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      for LH
      Tester Connection Condition Specified Condition
      R17-6 (B) - 2D-17 Always Below 1 Ω
      R17-5 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      S18-6 (B) - 2D-4 Always Below 1 Ω
      S18-5 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      R17-6 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      S18-6 (B) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the O12*1 or N12*2 outer rear view mirror assembly connector.


      • *1: for LH

      • *2: for RH

    2. Disconnect the 2B instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      for LH
      Tester Connection Condition Specified Condition
      O12-2 (B) - 2B-35 Always Below 1 Ω
      O12-9 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      N12-2 (B) - 2B-37 Always Below 1 Ω
      N12-9 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      O12-2 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      N12-2 (B) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly Click here.

      A005F0WE03

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2A-22 - 2C-17 Always Below 1 Ω
      2A-22 - 2D-17 Always Below 1 Ω
      2A-22 - 2B-35 Always Below 1 Ω
      2A-17 - 2C-36 Always Below 1 Ω
      2A-17 - 2D-4 Always Below 1 Ω
      2A-17 - 2B-37 Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

    OK

    REPLACE METER CIRCUIT PLATE Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here