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:


  • Open in turn signal light circuit

  • Bulb

  • Harness or connector

  • Instrument panel junction block assembly

  • Outer mirror control ECU assembly LH*

  • Outer mirror control ECU assembly RH*

  • Combination meter assembly
B1508

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

  • Outer mirror control ECU assembly LH*

  • Outer mirror control ECU assembly RH*

  • Combination meter assembly

WIRING DIAGRAM


  1. w/ Seat Position Memory

    B000IMRE12

  2. w/o Seat Position Memory

    B000IM5E06

INSPECTION PROCEDURE

Note

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


  • Front turn signal light assembly (for TMMK Made): Click here

  • Side turn signal light assembly (for TMMK Made): Click here

  • Side turn signal light assembly (except TMMK Made): Click here

  • Rear combination light assembly (for TMMK Made): Click here

  • Rear combination light assembly (except TMMK Made): Click here

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*1. D
      Side turn signal light does not illuminate*2. E

      • *1: w/ Seat Position Memory

      • *2: w/o Seat Position Memory


    B

    CONFIRM VEHICLE TYPE Click here

    C

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

    D

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

    E

    CHECK HARNESS AND CONNECTOR (SIDE TURN SIGNAL LIGHT 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. 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.

      B000LKPE02

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      3A-20 - 3D-10 Always Below 1 Ω
      3A-20 - 3C-22 Always Below 1 Ω
      3A-20 - 3A-40 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      3A-37 - 3D-5 Always Below 1 Ω
      3A-37 - 3C-19 Always Below 1 Ω
      3A-37 - 3B-32 Always Below 1 Ω
      Text in Illustration
      *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

  4. CONFIRM VEHICLE TYPE


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      except TMMK Made A
      for TMMK Made B

    B

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

    A

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


    1. Disconnect the A23*1 or A65*2 headlight 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
      A23-2 (B) - 3D-10 Always Below 1 Ω
      A23-1 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      A65-2 (B) - 3D-5 Always Below 1 Ω
      A65-1 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      A23-2 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      A65-2 (B) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  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.

      B000JP5E01

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      3A-20 - 3D-10 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      3A-37 - 3D-5 Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

    REPLACE HEADLIGHT ASSEMBLY Click here

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


    1. Disconnect the A92*1 or A96*2 front turn signal light 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
      A92-3 (B) - 3D-10 Always Below 1 Ω
      A92-6 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      A96-3 (B) - 3D-5 Always Below 1 Ω
      A96-6 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      A92-3 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      A96-3 (B) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. 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.

      B000JP5E01

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      3A-20 - 3D-10 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      3A-37 - 3D-5 Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

    REPLACE FRONT TURN SIGNAL LIGHT ASSEMBLY Click here

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


    1. Disconnect the T8*1 or T13*2 rear combination light assembly connector.


      • *1: for LH

      • *2: for RH

    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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. 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.

      B000MIFE01

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      3A-20 - 3C-22 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      3A-37 - 3C-19 Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

    REPLACE REAR COMBINATION LIGHT ASSEMBLY Click here

  11. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the K12*1 or J10*2 outer mirror control ECU assembly connector.


      • *1: for LH

      • *2: for RH

    2. Disconnect the 3A*1 or 3B*2 instrument panel junction block assembly connector.


      • *1: for LH

      • *2: for RH

    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
      K12-11 (TRNI) - 3A-40 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      J10-11 (TRNI) - 3B-32 Always Below 1 Ω
      Standard Resistance (Check for Short)
      for LH
      Tester Connection Condition Specified Condition
      K12-11 (TRNI) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      J10-11 (TRNI) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. 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.

      B000KYHE01

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      3A-20 - 3A-40 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      3A-37 - 3B-32 Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

  13. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY


    1. Remove the outer mirror control ECU assembly with a new or known good one Click here.

    2. Recheck for DTCs Click here.

      Result
      Result Proceed to
      DTCs are not output. A
      DTCs are output (for TMMK Made). B
      DTCs are output (except TMMK Made). C

    B

    REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY Click here

    C

    REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY Click here

    A

    END

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


    1. Disconnect the K7*1 or J7*2 side turn signal light assembly connector.


      • *1: for LH

      • *2: for RH

    2. Disconnect the 3A*1 or 3B*2 instrument panel junction block assembly connector.


      • *1: for LH

      • *2: for RH

    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 (-) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      J7-10 (B) - 3B-32 Always Below 1 Ω
      J7-11 (-) - 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. 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.

      B000KYHE01

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      3A-20 - 3A-40 Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      3A-37 - 3B-32 Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

    REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY Click here