METER / GAUGE SYSTEM, Diagnostic DTC:B1507

DTC Code DTC Name
B1507 Open in Turn Signal Circuit

DESCRIPTION

This DTC is stored when the combination meter assembly (meter circuit plate) detects an open in a turn signal light circuit.

Tech Tips


  • If there is an open in a front turn signal light circuit or rear turn signal light circuit, the turn signal lights on the side with the open circuit will blink faster than usual.

  • If there is an open in a side turn signal light circuit, DTC B1507 will not be stored.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B1507 Open in Turn Signal Circuit

Diagnosis Condition:


  • Auxiliary battery voltage is 10 V or more.

Malfunction Status:


  • Open in front turn signal light circuit or rear turn signal light circuit

  • Front turn signal light

  • Rear turn signal light

  • Harness or connector

  • Instrument panel junction block assembly

  • Combination meter assembly (Meter circuit plate)

 DTC stored -

WIRING DIAGRAM

A003O32E01

CAUTION / NOTICE / HINT

Note


  • 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.

  • Inspect the turn signal lights for this system before performing the following procedure.

    Rear turn signal light assembly: Click here

    Front turn signal light assembly: Click here

PROCEDURE


  1. INSPECT LIGHTS


    1. Inspect the illumination of each turn signal light.

      Result
      Result Proceed to
      Front turn signal light LH does not blink A
      Rear turn signal light LH does not blink B
      Front turn signal light RH does not blink C
      Rear turn signal light RH does not blink D

    B

    CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) AND BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE)) Click here

    D

    CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) AND BODY GROUND) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE))


    1. Disconnect the 3A instrument panel junction block assembly connector.

    2. Disconnect the I7 combination meter assembly (meter circuit plate) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-5 - I7-12 (LL) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND)


    1. Disconnect the A21 front turn signal light assembly LH connector.

    2. Disconnect the 3F instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A21-1 (B) - 3F-6 Always Below 1 Ω
      A21-5 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    A003JXBC01
    *a

    Component without harness connected

    (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.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3F-6 - 3A-5 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) AND BODY GROUND)


    1. Disconnect the P11 rear turn signal light assembly LH (rear turn signal light lens and body LH) connector.

    2. Disconnect the I7 combination meter assembly (meter circuit plate) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P11-1 (B) - I7-13 (TRNL) Always Below 1 Ω
      P11-2 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE))


    1. Disconnect the 3A instrument panel junction block assembly connector.

    2. Disconnect the I7 combination meter assembly (meter circuit plate) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-4 - I7-6 (LR) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the A12 front turn signal light assembly RH connector.

    2. Disconnect the 3F instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A12-1 (B) - 3F-8 Always Below 1 Ω
      A12-5 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    A003JXBC01
    *a

    Component without harness connected

    (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.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3F-8 - 3A-4 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  9. CHECK HARNESS AND CONNECTOR (REAR TURN SIGNAL LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) AND BODY GROUND)


    1. Disconnect the P9 rear turn signal light assembly RH (rear turn signal light lens and body RH) connector.

    2. Disconnect the I7 combination meter assembly (meter circuit plate) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P9-1 (B) - I7-7 (TRNR) Always Below 1 Ω
      P9-2 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR