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*1

  • Harness or connector

  • Headlight ECU sub-assembly LH

  • Headlight ECU sub-assembly RH

  • 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*1

  • Harness or connector

  • Headlight ECU sub-assembly LH

  • Headlight ECU sub-assembly RH

  • Combination meter assembly

 DTC stored -

WIRING DIAGRAM

A001TAWE03
A001UGCE03

CAUTION / NOTICE / HINT

Note


  • Inspect the LEDs and bulbs for this system before performing the following procedure.

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

PROCEDURE


  1. INSPECT LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      RH side turn signal light does not illuminate. A
      LH side turn signal light does not illuminate. B

    B

    CHECK TURN SIGNAL LIGHTS (LH SIDE) Click here

    A

  2. CHECK TURN SIGNAL LIGHTS (RH SIDE)


    1. Turn the ignition switch ON.

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

    3. Check the operation of the turn signal lights (RH side).

      Result
      Result Proceed to
      Front turn signal light assembly (RH side) does not blink. (for LED Headlight Type) A
      Front turn signal light assembly (RH side) does not blink. (for Halogen Headlight Type) B
      Side turn signal light assembly (RH side) does not blink. C
      Rear turn signal light assembly (RH side) does not blink. D

    B

    CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY OR BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - OUTER REAR VIEW MIRROR ASSEMBLY RH) Click here

    D

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY OR BODY GROUND) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY RH - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the A17 headlight ECU sub-assembly RH connector.

    2. Disconnect the F5 combination meter 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
      A17-11 (TNS) - F5-7 (LR) Always Below 1 Ω
      A17-12 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A17-11 (TNS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT HEADLIGHT ECU SUB-ASSEMBLY RH


    1. Remove the Headlight ECU sub-assembly RH.

      Click here

    2. A001VE6C10
      *a

      Component without harness connected

      (Headlight ECU sub-assembly RH)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A17-11 (TNS) - B-9 (TURN+) Always Below 1 Ω
      A17-12 (GND) - B-13 (TURN-) Always Below 1 Ω
      A17-11 (TNS) - A17-12 (GND) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH Click here

  5. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the A29 headlight assembly RH connector.

    2. Disconnect the F5 combination meter 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
      A29-4 (B) - F5-7 (LR) Always Below 1 Ω
      A29-6 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A29-4 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - OUTER REAR VIEW MIRROR ASSEMBLY RH)


    1. Disconnect the F5 combination meter assembly connector.

    2. Disconnect the I8*1 or I7*2 outer rear view mirror assembly RH connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      F5-7 (LR) - I8-1 (B)*1 Always Below 1 Ω
      F5-7 (LR) - I7-16 (B)*2 Always Below 1 Ω
      I8-2 (E) - Body ground*1 Always Below 1 Ω
      I7-12 (-) - Body ground*2 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      I8-1 (B) - Body ground*1 Always 10 kΩ or higher
      I7-16 (B) - Body ground*2 Always 10 kΩ or higher

      • *1: for TMC Made

      • *2: for TMMT Made

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the M47 rear combination light assembly RH connector.

    2. Disconnect the F5 combination meter 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
      M47-4 (TRN) - F5-5 (TRNR) Always Below 1 Ω
      M47-3 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      M47-4 (TRN) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. CHECK TURN SIGNAL LIGHTS (LH SIDE)


    1. Turn the ignition switch ON.

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

    3. Check the operation of the turn signal lights (LH side).

      Result
      Result Proceed to
      Front turn signal light assembly (LH side) does not blink. (for LED Headlight Type) A
      Front turn signal light assembly (RH side) does not blink. (for Halogen Headlight Type) B
      Side turn signal light assembly (LH side) does not blink. C
      Rear turn signal light assembly (LH side) does not blink. D

    B

    CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY OR BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - OUTER REAR VIEW MIRROR ASSEMBLY LH OR BODY GROUND) Click here

    D

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY OR BODY GROUND) Click here

    A

  9. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - HEADLIGHT ECU SUB-ASSEMBLY LH OR BODY GROUND)


    1. Disconnect the A16 headlight ECU sub-assembly LH connector.

    2. Disconnect the F5 combination meter 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
      A16-11 (TNS) - F5-13 (LL) Always Below 1 Ω
      A16-12 (GND) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A16-11 (TNS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT HEADLIGHT ECU SUB-ASSEMBLY LH


    1. Remove the Headlight ECU sub-assembly LH.

      Click here

    2. A001VE6C11
      *a

      Component without harness connected

      (Headlight ECU sub-assembly LH)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A16-11 (TNS) - C-9 (TURN+) Always Below 1 Ω
      A16-12 (GND) - C-13 (TURN-) Always Below 1 Ω
      A16-11 (TNS) - A16-12 (GND) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY Click here

  11. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the A11 headlight assembly LH connector.

    2. Disconnect the F5 combination meter 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
      A11-4 (B) - F5-13 (LL) Always Below 1 Ω
      A11-6 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A11-4 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - OUTER REAR VIEW MIRROR ASSEMBLY LH OR BODY GROUND)


    1. Disconnect the F5 combination meter assembly connector.

    2. Disconnect the J7*1 or J11*2 outer rear view mirror assembly LH connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      J7-1 (B) - F5-13 (LL)*1 Always Below 1 Ω
      J11-16 (B) - F5-13 (LL)*2 Always Below 1 Ω
      J7-2 (E) - Body ground*1 Always Below 1 Ω
      J11-12 - Body ground*2 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      J7-1 (B) - Body ground*1 Always 10 kΩ or higher
      J11-16 (B) - Body ground*2 Always 10 kΩ or higher

      • *1: for TMC Made

      • *2: for TMMT Made

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the M48 rear combination light assembly LH connector.

    2. Disconnect the F5 combination meter 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
      F5-6 (TRNL) - M48-4 (TRN) Always Below 1 Ω
      M48-3 (E) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      M48-4 (TRN) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR