LIGHTING SYSTEM Turn Signal Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

B003XQ0E01

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

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      Turn Signal Switch (Right)
      Turn Signal Switch (Left)
      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 - WINDSHIELD WIPER SWITCH ASSEMBLY)


    1. Disconnect the K24 windshield wiper switch assembly connector.

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

      Standard Resistance
      for Light Control Switch LH Side Type
      Tester Connection Condition Specified Condition
      K23-16 (E) - K24-6 (GND1) Always Below 1 Ω
      K23-14 (TL) - K24-13 (TL1) Always Below 1 Ω
      K23-15 (TR) - K24-14 (TR1) Always Below 1 Ω
      K23-17 (CR) - K24-12 (CR1) Always Below 1 Ω
      K23-16 (E) or K24-6 (GND1) - Body ground) Always 10 kΩ or higher
      K23-14 (TL) or K24-13 (TL1) - Body ground Always 10 kΩ or higher
      K23-15 (TR) or K24-14 (TR1) - Body ground) Always 10 kΩ or higher
      K23-17 (CR) or K24-12 (CR1) - Body ground Always 10 kΩ or higher
      for Light Control Switch RH Side Type
      Tester Connection Condition Specified Condition
      K23-21 (E) - K24-6 (GND1) Always Below 1 Ω
      K23-22 (TL) - K24-13 (TL1) Always Below 1 Ω
      K23-23 (TR) - K24-14 (TR1) Always Below 1 Ω
      K23-20 (CR) - K24-12 (CR1) Always Below 1 Ω
      K23-21 (E) or K24-6 (GND1) - Body ground Always 10 kΩ or higher
      K23-22 (TL) or K24-13 (TL1) - Body ground Always 10 kΩ or higher
      K23-23 (TR) or K24-14 (TR1) - Body ground Always 10 kΩ or higher
      K23-20 (CR) or K24-12 (CR1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY)


    1. Disconnect the K4 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K24-16 (TR2) - K4-3 (ER) Always Below 1 Ω
      K24-17 (TL2) - K4-4 (EL) Always Below 1 Ω
      K24-16 (TR2) or K4-3 (ER) - Body ground Always 10 kΩ or higher
      K24-17 (TL2) or K4-4 (EL) - Body ground Always 10 kΩ or higher
      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