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 Code 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

  • Front turn signal light socket LH

  • Front turn signal light socket RH

  • Rear combination light socket and wire sub-assembly LH

  • Rear combination light socket and wire sub-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

WIRING DIAGRAM

A01BBSKE01

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B1507 or B1508 output does not occur.

    NG

    CHECK HARNESS AND CONNECTOR (COMBINATION METER - FRONT TURN SIGNAL LIGHT SOCKET LH, REAR COMBINATION LIGHT SOCKET AND WIRE LH AND BODY GROUND) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER - FRONT TURN SIGNAL LIGHT SOCKET LH, REAR COMBINATION LIGHT SOCKET AND WIRE LH AND BODY GROUND)


    1. Disconnect the H71 combination meter assembly connector.

    2. Disconnect the A23 front turn signal light socket assembly LH connector

    3. Disconnect the T16 rear combination light socket and wire sub-assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H71-13 (LL) - A23-2 Always Below 1 Ω
      H71-13 (LL) - T16-4 Always Below 1 Ω
      A23-1 - Body ground Always Below 1 Ω
      T16-6 - Body ground Always Below 1 Ω
      H71-13 (LL) or A23-2 - Body ground Always 10 kΩ or higher
      H71-13 (LL) or T16-4 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER - FRONT TURN SIGNAL LIGHT SOCKET RH, REAR COMBINATION LIGHT SOCKET AND WIRE RH AND BODY GROUND)


    1. Disconnect the H71 combination meter assembly connector.

    2. Disconnect the A1 front turn signal light socket assembly RH connector

    3. Disconnect the T33*1 or U1*2 rear combination light socket and wire sub-assembly LH connector.


      • *1: except Grade Super GL

      • *2: for Grade Super GL

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

      Standard Resistance
      except Grade Super GL
      Tester Connection Condition Specified Condition
      H71-7 (LR) - A1-2 Always Below 1 Ω
      H71-7 (LR) - T33-4 Always Below 1 Ω
      A1-1 - Body ground Always Below 1 Ω
      T33-6 - Body ground Always Below 1 Ω
      H71-7 (LR) or A1-2 - Body ground Always 10 kΩ or higher
      H71-7 (LR) or T33-4 - Body ground Always 10 kΩ or higher
      for Grade Super GL
      Tester Connection Condition Specified Condition
      H71-7 (LR) - A1-2 Always Below 1 Ω
      H71-7 (LR) - U1-4 Always Below 1 Ω
      A1-1 - Body ground Always Below 1 Ω
      U1-6 - Body ground Always Below 1 Ω
      H71-7 (LR) or A1-2 - Body ground Always 10 kΩ or higher
      H71-7 (LR) or U1-4 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK FRONT TURN SIGNAL LIGHT SOCKET


    1. Temporarily replace the front turn signal light socket with a new or normally functioning one.


    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      No DTCs are output.

    NG

    CHECK REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY Click here

    OK

    END (FRONT TURN SIGNAL LAMP SOCKET IS DEFECTIVE)

  5. CHECK REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY


    1. Temporarily replace the rear combination light socket and wire sub-assembly with a new or normally functioning one Click here

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      No DTCs are output.

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

    END (REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY IS DEFECTIVE)