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 Light Control Switch LH Side Type

    B005LNNE02
    *a Turn Signal Switch
    *b Combination Meter Assembly
    *c Headlight Dimmer Switch Assembly

  2. for Light Control Switch RH Side Type

    B005LNNE03
    *a Turn Signal Switch
    *b Combination Meter Assembly
    *c Headlight Dimmer Switch Assembly

PROCEDURE


  1. READ VALUE USING GTS


    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 / Combination Meter / Data List.

    5. Read the Data List according to 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 Light Control Switch LH Side Type:


      1. B005MT7C62
        *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) Turn signal switch in neutral position 10 kΩ or higher
        13 (CR) - 15 (EL) Turn signal switch in neutral position 10 kΩ or higher
        12 (TR) - 15 (EL) Turn signal switch in right turn position Below 1 Ω
        13 (CR) - 15 (EL) Turn signal switch in full right turn position Below 1 Ω
        11 (TL) - 15 (EL) Turn signal switch in left turn position Below 1 Ω
        13 (CR) - 15 (EL) Turn signal switch in full left turn position Below 1 Ω

    3. for Light Control Switch RH Side Type:


      1. B005MT7C69
        *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) Turn signal switch in neutral position 10 kΩ or higher
        18 (CR) - 16 (EL) Turn signal switch in neutral position 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
        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
      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 J11 combination meter assembly connector.

    2. for Light Control Switch LH Side Type:


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        J28-12 (TR) - J11-3 (ER) Always Below 1 Ω
        J28-11 (TL) - J11-4 (EL) Always Below 1 Ω
        J28-13 (CR) - J11-8 (SW) Always Below 1 Ω
        J28-12 (TR) or J11-3 (ER) - Body ground Always 10 kΩ or higher
        J28-11 (TL) or J11-4 (EL) - Body ground Always 10 kΩ or higher
        J28-13 (CR) or J11-8 (SW) - Body ground Always 10 kΩ or higher
        J28-15 (EL) - Body ground Always Below 1 Ω

    3. for Light Control Switch RH Side Type:


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        J28-20 (TR) - J11-3 (ER) Always Below 1 Ω
        J28-19 (TL) - J11-4 (EL) Always Below 1 Ω
        J28-18 (CR) - J11-8 (SW) Always Below 1 Ω
        J28-20 (TR) or J11-3 (ER) - Body ground Always 10 kΩ or higher
        J28-19 (TL) or J11-4 (EL) - Body ground Always 10 kΩ or higher
        J28-18 (CR) or J11-8 (SW) - Body ground Always 10 kΩ or higher
        J28-16 (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