LIGHTING SYSTEM Cornering Light Circuit

DESCRIPTION

The headlight ECU sub-assemblies control the cornering lights.

WIRING DIAGRAM


  1. for Single Beam Headlight

    B005OGTE08

  2. for Triple Beam Headlight

    B005PCBE07

CAUTION / NOTICE / HINT

Note


  • Check the fuses for circuits related to this system before performing the following inspection procedure.

  • If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

    Click here

  • Check that meter/gauge system DTCs B1507 and B1508 are not output.

    Click here

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. for Single Beam Headlight:


      1. Connect the GTS to the DLC3.

      2. Turn the engine switch on (IG).

      3. Turn the GTS on.

      4. Enter the following menus: Body Electrical / HL AutoLeveling / Active Test.

      5. Perform the Active Test according to the display on the GTS.


        Body Electrical > HL AutoLeveling > Active Test
        Tester Display Measurement Item Control Range Diagnostic Note
        Cornering Light Cornering lights ON or OFF -

        Body Electrical > HL AutoLeveling > Active Test
        Tester Display
        Cornering Light
        OK
        Cornering lights illuminate.

    2. for Triple Beam Headlight:


      1. Connect the GTS to the DLC3.

      2. Turn the engine switch on (IG).

      3. Turn the GTS on.

      4. Enter the following menus: Body Electrical / AFS / Active Test.

      5. Perform the Active Test according to the display on the GTS.


        Body Electrical > AFS > Active Test
        Tester Display Measurement Item Control Range Diagnostic Note
        Cornering Light Cornering lights ON or OFF -

        Body Electrical > AFS > Active Test
        Tester Display
        Cornering Light
        OK
        Cornering lights illuminate.
      Result
      Result Proceed to
      OK A
      NG (for LH Side) B
      NG (for RH Side) C

    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    C

    CHECK HARNESS AND CONNECTOR (CORNERING LIGHT ASSEMBLY RH - POWER SOURCE OR BODY GROUND) Click here

    B

  2. CHECK HARNESS AND CONNECTOR (CORNERING LIGHT ASSEMBLY LH - POWER SOURCE OR BODY GROUND)


    1. Disconnect the A19 cornering light assembly LH connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A19-1 (B) - Body ground Engine switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A19-3 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY LH - CORNERING LIGHT ASSEMBLY LH)


    1. Disconnect the A49 headlight ECU sub-assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A49-9 (CRSL) - A19-2 (CRPL) Always Below 1 Ω
      A49-9 (CRSL) or A19-2 (CRPL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT CORNERING LIGHT ASSEMBLY LH


    1. Remove the cornering light assembly LH.

      Click here

    2. Inspect the cornering light assembly LH.

      Click here

      OK
      Cornering light assembly LH operate normally.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH Click here

    NG

    REPLACE CORNERING LIGHT ASSEMBLY LH Click here

  5. CHECK HARNESS AND CONNECTOR (CORNERING LIGHT ASSEMBLY RH - POWER SOURCE OR BODY GROUND)


    1. Disconnect the A23 cornering light assembly RH connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A23-1 (B) - Body ground Engine switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A23-3 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY RH - CORNERING LIGHT ASSEMBLY RH)


    1. Disconnect the A50 headlight ECU sub-assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A50-9 (CRSR) - A23-2 (CRPR) Always Below 1 Ω
      A50-9 (CRSR) or A23-2 (CRPR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT CORNERING LIGHT ASSEMBLY RH


    1. Remove the cornering light assembly RH.

      Click here

    2. Inspect the cornering light assembly RH.

      Click here

      OK
      Cornering light assembly RH operate normally.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH Click here

    NG

    REPLACE CORNERING LIGHT ASSEMBLY RH Click here