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. Detection Item DTC Detection Condition Trouble Area Memory
B1507 Open in Turn Signal Circuit

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


  • Open in turn signal light circuit

  • Bulb

  • Harness or connector

  • Instrument panel junction block assembly

  • Combination meter assembly

 DTC stored
B1508 Short in Turn Signal / Hazard Flasher Circuit

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


  • Short in turn signal light circuit or hazard warning light circuit

  • Bulb

  • Harness or connector

  • Instrument panel junction block assembly

  • Combination meter assembly

 DTC stored

WIRING DIAGRAM

A0139KCE02

CAUTION / NOTICE / HINT

Note

Inspect the bulbs for this system before performing the following 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 ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the E45 combination meter assembly connector.

    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
      E45-13 (LL) - 3D-36 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      E45-7 (LR) - 3D-45 Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      E45-13 (LL) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      E45-7 (LR) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    GO TO STEP 6 Click here

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


    1. Disconnect the A69*1 or A72*2 headlight assembly connector.


      • *1: for LH

      • *2: for RH

    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
      A69-1 - 3A-36 Always Below 1 Ω
      A69-2 - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      A72-1 - 3A-47 Always Below 1 Ω
      A72-2 - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      A69-1 - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      A72-1 - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    GO TO STEP 6 Click here

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


    1. Disconnect the L3*1 or L4*2 rear combination light assembly connector.


      • *1: for LH

      • *2: for RH

    2. Disconnect the 3E 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
      L3-4 (TRN) - 3E-26 Always Below 1 Ω
      L3-3 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      L4-4 (TRN) - 3E-33 Always Below 1 Ω
      L4-3 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      L3-4 (TRN) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      L4-4 (TRN) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK B

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    GO TO STEP 6 Click here

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


    1. Disconnect the H8*1 or G8*2 outer rear view mirror assembly connector.


      • *1: for LH

      • *2: for RH

    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
      H8-1 (B) - 3D-37 Always Below 1 Ω
      H8-2 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      G8-1 (B) - 3D-46 Always Below 1 Ω
      G8-2 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      H8-1 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      G8-1 (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.

      for LHD: Click here

      for RHD: Click here

      A013AFUC01
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      3D-36 - 3A-36 Always Below 1 Ω
      3D-36 - 3E-26 Always Below 1 Ω
      3D-36 - 3D-37 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      3D-45 - 3A-47 Always Below 1 Ω
      3D-45 - 3E-33 Always Below 1 Ω
      3D-45 - 3D-46 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY for LHD: Click here
    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY for RHD: Click here