LIGHTING SYSTEM Turn Signal Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

A01V9MSE01
for LHD
*1 Turn Signal Switch
*2 Headlight Dimmer Switch Assembly
*3 Combination Meter Assembly
A01V9MSE02

PROCEDURE


  1. READ VALUE USING GTS (TURN SIGNAL SWITCH)


    1. Using the GTS, read the Data List.

      Click here


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

      ON: Headlight dimmer switch (turn signal switch) in right turn position

      OFF: Headlight dimmer switch (turn signal switch) not in right turn position

      		 -
      Turn Signal Switch (Left) Headlight dimmer switch (turn signal switch) left turn position signal ON or OFF

      ON: Headlight dimmer switch (turn signal switch) in left turn position

      OFF: Headlight dimmer switch (turn signal switch) not in left turn position

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      Turn Signal Switch (Right)
      Turn Signal Switch (Left)
      OK
      The display is as specified in the normal condition column.
      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 AND BODY GROUND)


    1. for LHD:


      1. Disconnect the G13 headlight dimmer switch assembly connector.

    2. for RHD:


      1. Disconnect the G13*1 or G63*2 headlight dimmer switch assembly connector.

        *1: for LH Side

        *2: for RH Side

    3. Disconnect the G16 and G17 combination meter assembly connectors.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      G16-29 (HAZ) - G13-13 (CR) Always Below 1 Ω
      G17-9 (ER) - G13-12 (TR)
      G17-10 (EL) - G13-11 (TL)
      G13-15 (EL) - Body ground
      G16-29 (HAZ) - Body ground Always 10 kΩ or higher
      G17-9 (ER) - Body ground
      G17-10 (EL) - Body ground
      for RHD
      Tester Connection Condition Specified Condition
      G16-29 (HAZ) - G13-13 (CR)*1 Always Below 1 Ω
      G16-29 (HAZ) - G63-18 (CR)*2
      G17-9 (ER) - G13-12 (TR)*1
      G17-9 (ER) - G63-20 (TR)*2
      G17-10 (EL) - G13-11 (TL)*1
      G17-10 (EL) - G63-19 (TL)*2
      G13-15 (EL) - Body ground*1
      G63-16 (EL) - Body ground*2
      G16-29 (HAZ) - Body ground Always 10 kΩ or higher
      G17-9 (ER) - Body ground
      G17-10 (EL) - Body ground
      *1: for LH Side
      *2: for RH Side
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR