LIGHTING SYSTEM Turn Signal Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

A0007WNE01
*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 power switch on (IG).

    3. Turn the GTS on.

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

    5. Read the display on the GTS.

      Combination Meter
      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

      		 -
      OK
      Normal conditions listed above are displayed.

    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. A0007MWE35
      Text in Illustration
      *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

    NG

    REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY Click here

    OK

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


    1. Disconnect the H13 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H19-12 (TR) - H13-9 (ER) Always Below 1 Ω
      H19-11 (TL) - H13-10 (EL) Always Below 1 Ω
      H19-13 (CR) - H13-3 (SW) Always Below 1 Ω
      H19-15 (EL) - Body ground Always Below 1 Ω
      H13-9 (ER) - Body ground Always 10 kΩ or higher
      H13-10 (EL) - Body ground Always 10 kΩ or higher
      H13-3 (SW) - Body ground Always 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR