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, or a short in a turn signal light circuit or the hazard warning light circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
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

  • LED

  • Bulb

  • Harness or connector

  • Instrument panel junction block assembly

  • Outer mirror control ECU assembly LH*1

  • Outer mirror control ECU assembly RH*1

  • 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

  • LED

  • Bulb

  • Harness or connector

  • Instrument panel junction block assembly

  • Outer mirror control ECU assembly LH*1

  • Outer mirror control ECU assembly RH*1

  • Combination meter assembly

 DTC stored -

WIRING DIAGRAM


  1. w/ Seat Position Memory

    A002BRTE01

  2. w/o Seat Position Memory

    A00270DE01

CAUTION / NOTICE / HINT

Note

Inspect the LEDs and 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
      All RH turn signal lights or all LH turn signal lights do not blink. A
      RH side turn signal light does not illuminate. B
      LH side turn signal light does not illuminate. C

    B

    CHECK TURN SIGNAL LIGHTS (RH SIDE) Click here

    C

    CHECK TURN SIGNAL LIGHTS (LH SIDE) Click here

    A

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


    1. Disconnect the F21 combination meter assembly connector.

    2. RH side


      1. Disconnect the 4A instrument panel junction block assembly connector.

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

        Standard Resistance (Check for Open)
        Tester Connection Condition Specified Condition
        F21-13 (LR) - 4A-1 Always Below 1 Ω
        Standard Resistance (Check for Short)
        Tester Connection Condition Specified Condition
        F21-13 (LR) - Body ground Always 10 kΩ or higher

    3. LH side


      1. Disconnect the 4D instrument panel junction block assembly connector.

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

        Standard Resistance (Check for Open)
        Tester Connection Condition Specified Condition
        F21-7 (LL) - 4D-8 Always Below 1 Ω
        Standard Resistance (Check for Short)
        Tester Connection Condition Specified Condition
        F21-7 (LL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

      A002BH1C01
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

    2. RH side


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        4A-1 - 4F-7 Always Below 1 Ω
        4A-1 - 4H-6 Always Below 1 Ω
        4A-1 - 4A-15 Always Below 1 Ω

    3. LH side


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        4D-8 - 4F-5 Always Below 1 Ω
        4D-8 - 4H-7 Always Below 1 Ω
        4D-8 - 4D-20 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  4. CHECK TURN SIGNAL LIGHTS (RH SIDE)


    1. Turn the ignition switch to ON.

    2. Set the headlight dimmer switch assembly to the right turn switch position.

    3. Check the operation of the turn signal lights.

      Result
      Result Proceed to
      Front turn signal light assembly does not blink. A
      Side turn signal light assembly does not blink. B
      Rear turn signal light assembly does not blink. C

    B

    CONFIRM VEHICLE TYPE Click here

    C

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

    A

  5. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the A25 headlight assembly RH connector.

    2. Disconnect the 4F instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A25-1 (B) - 4F-7 Always Below 1 Ω
      A25-4 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      4F-7 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

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

      A0026XLC06
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      4A-1 - 4F-7 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  7. CONFIRM VEHICLE TYPE


    1. Confirm the vehicle type.

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

    B

    CHECK HARNESS AND CONNECTOR (SIDE TURN SIGNAL LIGHT ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND) Click here

    A

  8. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the H2 outer mirror control ECU assembly RH connector.

    2. Disconnect the 4A instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      H2-11 (TRNI) - 4A-15 Always Below 1 Ω
      H2-7 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      4A-15 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

    2. A002864C02
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4A-1 - 4A-15 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

  10. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH


    1. Replace the outer mirror control ECU assembly RH with a new or known good one.

      Click here

    2. Check for the DTCs.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

    A

    REPLACE COMBINATION METER ASSEMBLY Click here

    B

    END

  11. CHECK HARNESS AND CONNECTOR (SIDE TURN SIGNAL LIGHT ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the H1 side turn signal light assembly RH connector.

    2. Disconnect the 4A instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      H1-4 (B) - 4A-15 Always Below 1 Ω
      H1-9 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      4A-15 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

    2. A002864C02
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4A-1 - 4A-15 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  13. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the M32 rear combination light assembly RH connector.

    2. Disconnect the 4H instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      M32-4 (B) - 4H-6 Always Below 1 Ω
      M32-6 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      4H-6 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

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

      A002908C05
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      4A-1 - 4H-6 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  15. CHECK TURN SIGNAL LIGHTS (LH SIDE)


    1. Turn the ignition switch to ON.

    2. Set the headlight dimmer switch assembly to the left turn switch position.

    3. Check the operation of the turn signal lights.

      Result
      Result Proceed to
      Front turn signal light assembly does not blink. A
      Side turn signal light assembly does not blink. B
      Rear turn signal light assembly does not blink. C

    B

    CONFIRM VEHICLE TYPE Click here

    C

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

    A

  16. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the A17 headlight assembly LH connector.

    2. Disconnect the 4F instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A17-1 (B) - 4F-5 Always Below 1 Ω
      A17-4 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A17-1 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

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

      A002BJZC01
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      4D-8 - 4F-5 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  18. CONFIRM VEHICLE TYPE


    1. Confirm the vehicle type.

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

    B

    CHECK HARNESS AND CONNECTOR (SIDE TURN SIGNAL LIGHT ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND) Click here

    A

  19. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the I2 outer mirror control ECU assembly LH connector.

    2. Disconnect the 4D instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      I2-11 (TRNI) - 4D-20 Always Below 1 Ω
      I2-7 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      4D-20 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  20. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

    2. A0028FDC01
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4D-8 - 4D-20 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

  21. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH


    1. Replace the outer mirror control ECU assembly LH with a new or known good one.

      Click here

    2. Check for the DTCs.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

    A

    REPLACE COMBINATION METER ASSEMBLY Click here

    B

    END

  22. CHECK HARNESS AND CONNECTOR (SIDE TURN SIGNAL LIGHT ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the I1 side turn signal light assembly LH connector.

    2. Disconnect the 4D instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      I1-4 (B) - 4D-20 Always Below 1 Ω
      I1-9 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      4D-20 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  23. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

    2. A0028FDC01
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4D-8 - 4D-20 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  24. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND)


    1. Disconnect the M30 rear combination light assembly LH connector.

    2. Disconnect the 4H instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      M30-4 (B) - 4H-7 Always Below 1 Ω
      M30-6 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      4H-7 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  25. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

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

      A0028EYC01
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      4D-8 - 4H-7 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here