LIGHTING SYSTEM ALL Stop Light do not Illuminate

DTC Code DTC Name
ALL Stop Light do not Illuminate

WIRING DIAGRAM

E341489E01

CAUTION / NOTICE / HINT

Note:

  • When replacing the brake actuator assembly (skid control ECU), perform zero point calibration.

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  • When the smart entry start function does not operate, check the entry and start system (start function)*.

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  • *: w/ Entry and Start System

PROCEDURE

  1. CHECK STOP LIGHT OPERATION

    1. Check that the stop lights illuminate when the brakepedal is depressed.

      OK

      The stop lights illuminate when the brake pedal isdepressed.

    Result

    Proceed to

    OK

    NG
    OK

    CHECK CONNECTOR CONNECTION CONDITION

    NG

  2. CHECK HARNESS AND CONNECTOR (OUT)

    1. Disconnect the A80 brake acyuator assembly.

    2. Disconnect the A77 stoplight light switch assembly connector.

    3. Disconnect the M13 rear combination light lens and body LH connector.

    4. Disconnect the M19 rear combination light lens and body RH connector.

    5. Disconnect the U1 center stop light assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A80-35 (STP) - A77-1 (OUT)

      Always

      Below 1 Ω

      A80-35 (STP) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK STOP LIGHT SWITCH ASSEMBLY (OUT)

    1. Disconnect the M13 rear combination light lens and body LH connector.

    2. Disconnect the M19 rear combination light lens and body RH connector.

    3. Disconnect the U1 center stop light assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A77-1 (OUT) - Body ground

      Brake pedal depressed

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    OK

    REPAIR OR REPLACE REAR COMINATION LIGHT LENS AND BODY AND CENTER STOP LIGHT ASSEMBLY

    1. Inspect the rear combination light lens and body.

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    2. Inspect the center stop light assembly.

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    NG

    REPLACE STOP LIGHT SWITCH ASSEMBLY

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