LIGHTING SYSTEM Turn Signal Switch Circuit

DESCRIPTION

The combination meter assembly receives the turn signal switch information and controls the turn signal lights.

WIRING DIAGRAM


  1. for LHD

    A002AREE03
    *1 Turn Signal Switch
    *2 Off
    *3 Combination Meter Assembly
    *4 Headlight Dimmer Switch Assembly

  2. for RHD

    A002AREE04
    *1 Turn Signal Switch
    *2 Off
    *3 Combination Meter Assembly
    *4 Headlight Dimmer Switch Assembly

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the display on the GTS.


      Body Electrical > Combination Meter > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Turn Signal Switch (Right) Turn signal switch (right) signal ON or OFF

      ON: Turn signal switch (right) on

      OFF: Turn signal switch (right) off

      		 -
      Turn Signal Switch (Left) Turn signal switch (left) signal ON or OFF

      ON: Turn signal switch (left) on

      OFF: Turn signal switch (left) off

      		 -
      Turn Switch Signal (Full Turn) Turn signal switch (full turn) signal ON or OFF

      ON: Turn signal switch (left or right) on

      OFF: Turn signal switch (left and right) off

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      Turn Signal Switch (Right)
      Turn Signal Switch (Left)
      Turn Switch Signal (Full Turn)
      OK
      Normal conditions listed above are displayed.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY


    1. Remove the headlight dimmer switch assembly.

      Click here

    2. for LHD:


      1. A0029HIC62
        *a

        Component without harness connected

        (Headlight Dimmer Switch Assembly)

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        12 (TR) - 15 (EL) Turn signal switch in neutral position 10 kΩ or higher
        11 (TL) - 15 (EL) 10 kΩ or higher
        13 (CR) - 15 (EL) 10 kΩ or higher
        12 (TR) - 11 (TL) 10 kΩ or higher
        13 (CR) - 11 (TL) 10 kΩ or higher
        12 (TR) - 13 (CR) 10 kΩ or higher
        12 (TR) - 15 (EL) Turn signal switch in right turn position Below 1 Ω
        12 (TR) - 15 (EL) Turn signal switch in full right turn position Below 1 Ω
        13 (CR) - 15 (EL) Below 1 Ω
        12 (TR) - 13 (CR) Below 1 Ω
        11 (TL) - 15 (EL) Turn signal switch in left turn position Below 1 Ω
        11 (TL) - 15 (EL) Turn signal switch in full left turn position Below 1 Ω
        13 (CR) - 15 (EL) Below 1 Ω
        11 (TL) - 13 (CR) Below 1 Ω

    3. for RHD:


      1. A0029HIC69
        *a

        Component without harness connected

        (Headlight Dimmer Switch Assembly)

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        20 (TR) - 16 (EL) Turn signal switch in neutral position 10 kΩ or higher
        19 (TL) - 16 (EL) 10 kΩ or higher
        18 (CR) - 16 (EL) 10 kΩ or higher
        19 (TL) - 20 (TR) 10 kΩ or higher
        19 (TL) - 18 (CR) 10 kΩ or higher
        18 (CR) - 20 (TR) 10 kΩ or higher
        20 (TR) - 16 (EL) Turn signal switch in right turn position Below 1 Ω
        18 (CR) - 16 (EL) Turn signal switch in full right turn position Below 1 Ω
        20 (TR) - 16 (EL) Below 1 Ω
        18 (CR) - 20 (TR) Below 1 Ω
        19 (TL) - 16 (EL) Turn signal switch in left turn position Below 1 Ω
        18 (CR) - 16 (EL) Turn signal switch in full left turn position Below 1 Ω
        19 (TL) - 16 (EL) Below 1 Ω
        18 (CR) - 19 (TL) Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY OR BODY GROUND)


    1. Disconnect the F21 combination meter assembly connector.

    2. for LHD:


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        F59-12 (TR) - F21-9 (ER) Always Below 1 Ω
        F59-11 (TL) - F21-10 (EL) Always Below 1 Ω
        F59-13 (CR) - F21-8 (SW) Always Below 1 Ω
        F59-12 (TR) - Body ground Always 10 kΩ or higher
        F59-11 (TL) - Body ground Always 10 kΩ or higher
        F59-13 (CR) - Body ground Always 10 kΩ or higher
        F59-15 (EL) - Body ground Always Below 1 Ω

    3. for RHD:


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        F60-20 (TR) - F21-9 (ER) Always Below 1 Ω
        F60-19 (TL) - F21-10 (EL) Always Below 1 Ω
        F60-18 (CR) - F21-8 (SW) Always Below 1 Ω
        F60-20 (TR) - Body ground Always 10 kΩ or higher
        F60-19 (TL) - Body ground Always 10 kΩ or higher
        F60-18 (CR) - Body ground Always 10 kΩ or higher
        F60-16 (EL) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR