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 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 assembly
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 assembly

WIRING DIAGRAM

A011VDPE08

INSPECTION PROCEDURE

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 (FRONT TURN SIGNAL LIGHT - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT - 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 ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

    1. Disconnect the I17 combination meter assembly connector.

    2. Disconnect the 3A 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
      I17-7 (LL) - 3A-20 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      I17-13 (LR) - 3A-37 Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      I17-7 (LL) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      I17-13 (LR) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B
    B

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

    1. Disconnect the A77*1 or A74*2 front turn signal light connector.

      • *1: for RH

      • *2: for LH

    2. Disconnect the 3D 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
      A74-1 (B) - 3D-10 Always Below 1 Ω
      A74-3 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      A77-1 (B) - 3D-5 Always Below 1 Ω
      A77-3 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      A74-1 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      A77-1 (B) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B
    B

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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

    1. Disconnect the T13*1 or T8*2 rear turn signal light connector.

      • *1: for RH

      • *2: for LH

    2. Disconnect the 3C 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
      T8-1 (B) - 3C-22 Always Below 1 Ω
      T8-2 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      T13-1 (B) - 3C-19 Always Below 1 Ω
      T13-2 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      T8-1 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      T13-1 (B) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B
    B

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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

    1. Disconnect the J7*1 or K7*2 outer rear view mirror assembly connector.

      • *1: for RH

      • *2: for LH

    2. Disconnect the 3A or 3B 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
      K7-10 (B) - 3A-40 Always Below 1 Ω
      K7-11 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      J7-10 (B) - 3B-32 Always Below 1 Ω
      J7-11 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      K7-10 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      J7-10 (B) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B
    B

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  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.

      A011WSKE12

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-37 - 3D-5 Always Below 1 Ω
      3A-37 - 3C-19 Always Below 1 Ω
      3A-20 - 3D-10 Always Below 1 Ω
      3A-20 - 3C-22 Always Below 1 Ω
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)
    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here