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 detects an open in a front turn signal light circuit or rear 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:

  • Battery voltage is 10 V or more


    Malfunction Status:

  • Open in front turn signal light circuit

  • Open in rear turn signal light circuit

  • Clearance light assembly*1

  • Clearance light LED unit assembly*1

  • Headlight cord*2

  • Front turn signal light bulb*2

  • Rear combination light socket and wire sub-assembly

  • Rear turn signal light bulb

  • Harness or connector

  • Combination meter assembly

 DTC stored -

WIRING DIAGRAM


  1. FOR LH SIDE

    B0074OHE05

  2. FOR RH SIDE

    B0074OHE06

CAUTION / NOTICE / HINT

Note

Inspect the turn signal light bulbs and sockets before performing the following procedure.

PROCEDURE


  1. CHECK 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 COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) Click here

    C

    CONFIRM MODEL Click here

    D

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

    A

  2. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Triple Beam Headlight A
      for Single Beam Headlight B

    B

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

    A

  3. CHECK HARNESS AND CONNECTOR (CLEARANCE LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the A32 clearance light assembly LH connector.

    2. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A32-1 (B) - O4-13 (LL) Always Below 1 Ω
      A32-2 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK LH SIDE LIGHTS (COMBINATION METER ASSEMBLY)


    1. Interchange the clearance light assembly LH with RH and connect the connectors.

      Click here

    2. Check that the front turn signal light operates normally.

      OK
      Front turn signal light blinks.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  5. INSPECT CLEARANCE LIGHT ASSEMBLY LH

    B0076IFC04
    *a

    Component without harness connected

    (Clearance Light Assembly LH)

    1. Remove the clearance light LED unit assembly LH from clearance light assembly LH.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-5 - A32-1 (B) Always Below 1 Ω
      A-2 - A32-2 (E) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CLEARANCE LIGHT LED UNIT ASSEMBLY LH Click here

    NG

    REPLACE CLEARANCE LIGHT ASSEMBLY LH Click here

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


    1. Disconnect the A30 headlight assembly LH connector.

    2. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A30-6 (B) - O4-13 (LL) Always Below 1 Ω
      A30-3 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK LH SIDE LIGHTS (COMBINATION METER ASSEMBLY)


    1. Interchange the headlight assembly LH with RH and connect the connectors.

      Click here

    2. Check that the front turn signal light operates normally.

      OK
      Front turn signal light blinks.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEAD LIGHT CORD LH Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

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


    1. Disconnect the U41 rear combination light assembly LH connector.

    2. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U41-4 (TRN) - O4-11 (TRNL) Always Below 1 Ω
      U41-3 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK LH SIDE LIGHTS (COMBINATION METER ASSEMBLY)


    1. Interchange the rear combination light assembly LH with RH and connect the connectors.

      Click here

    2. Check that the rear turn signal light operates normally.

      OK
      Rear turn signal light blinks.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY LH Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

  10. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Triple Beam Headlight A
      for Single Beam Headlight B

    B

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

    A

  11. CHECK HARNESS AND CONNECTOR (CLEARANCE LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the A3 clearance light assembly RH connector.

    2. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A3-1 (B) - O4-7 (LR) Always Below 1 Ω
      A3-2 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. CHECK RH SIDE LIGHTS (COMBINATION METER ASSEMBLY)


    1. Interchange the clearance light assembly RH with LH and connect the connectors.

      Click here

    2. Check that the front turn signal light operates normally.

      OK
      Front turn signal light blinks.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  13. INSPECT CLEARANCE LAMP ASSEMBLY RH

    B0076IFC05
    *a

    Component without harness connected

    (Clearance Light Assembly RH)

    1. Remove the clearance light LED unit assembly RH from clearance light assembly RH.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B-5 - A3-1 (B) Always Below 1 Ω
      B-2 - A3-2 (E) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CLEARANCE LIGHT LED UNIT ASSEMBLY RH Click here

    NG

    REPLACE CLEARANCE LIGHT ASSEMBLY RH Click here

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


    1. Disconnect the A1 headlight assembly RH connector.

    2. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A1-6 (B) - O4-7 (LR) Always Below 1 Ω
      A1-3 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. CHECK RH SIDE LIGHTS (COMBINATION METER ASSEMBLY)


    1. Interchange the headlight assembly RH with LH and connect the connectors.

      Click here

    2. Check that the front turn signal light operates normally.

      OK
      Front turn signal light blinks.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEAD LIGHT CORD RH Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

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


    1. Disconnect the U5 rear combination light assembly RH connector.

    2. Disconnect the O4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U5-4 (TRN) - O4-5 (TRNR) Always Below 1 Ω
      U5-3 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. CHECK RH SIDE LIGHTS (COMBINATION METER ASSEMBLY)


    1. Interchange the rear combination light assembly RH with LH and connect the connectors.

      Click here

    2. Check that the rear turn signal light operates normally.

      OK
      Rear turn signal light blinks.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE SUB-ASSEMBLY RH Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here