LIGHTING SYSTEM Turn Signal Switch Circuit

DESCRIPTION

The combination meter assembly (meter circuit plate) receives the turn signal switch information and controls the turn signal lights.

WIRING DIAGRAM

A003K2HE04
*a Turn Signal Switch
*b Combination Meter Assembly (Meter Circuit Plate)
*c Headlight Dimmer Switch Assembly

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power 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 OFF or ON

      OFF: Turn signal switch (right) off

      ON: Turn signal switch (right) on

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

      OFF: Turn signal switch (left) off

      ON: Turn signal switch (left) on

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

      OFF: Turn signal switch (left and right) off

      ON: Turn signal switch (left or right) on

      		 -

      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. Inspect the headlight dimmer switch assembly.

      Click here

      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 (METER CIRCUIT PLATE) AND BODY GROUND)


    1. Disconnect the I7 combination meter assembly (meter circuit plate) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I67-12 (TR) - I7-5 (ER) Always Below 1 Ω
      I67-11 (TL) - I7-11 (EL) Always Below 1 Ω
      I67-13 (CR) - I7-9 (SW) Always Below 1 Ω
      I67-12 (TR) or I7-5 (ER) - Body ground Always 10 kΩ or higher
      I67-11 (TL) or I7-11 (EL) - Body ground Always 10 kΩ or higher
      I67-13 (CR) or I7-9 (SW) - Body ground Always 10 kΩ or higher
      I67-15 (EL) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR