LIGHTING SYSTEM Turn Signal Light does not Illuminate

WIRING DIAGRAM

A01GLWNE04
A01GMOSE02

INSPECTION PROCEDURE

Note


  • First perform the communication function inspections in HOW TO PROCEED WITH TROUBLESHOOTING to confirm that there are no CAN communication malfunctions before troubleshooting this symptom.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (TURN SIGNAL LIGHT)


    1. Using the GTS, perform the Active Test Click here.

      Main Body
      Tester Display Test Part Control Range
      Turn Light RH Relay Operation Turn signal light operation OFF - ON
      Turn Light LH Relay Operation Turn signal light operation OFF - ON
      OK
      Turn signal light condition is switched by Active Test.

    NG

    CONFIRM LIGHT POSITION Click here

    OK

  2. READ VALUE USING GTS (HEADLIGHT DIMMER SWITCH)


    1. Using the GTS, read the Data List Click here.

      Combination Switch
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Turn Right Switch Headlight dimmer switch signal (Turn R position)/ON or OFF

      ON: Turn signal switch Turn R position

      OFF: Turn signal switch OFF

      		 -
      Turn Left Switch Headlight dimmer switch signal (Turn L position)/ON or OFF

      ON: Turn signal switch Turn L position

      OFF: Turn signal switch OFF

      		 -
      OK
      Condition sign can be displayed.

    NG

    INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY Click here

    OK

  3. CHECK WINDSHIELD WIPER SWITCH ASSEMBLY


    1. Temporarily replace the windshield wiper switch with a new or normally functioning one Click here.

    2. Check the turn signal light operation.

      OK
      Turn signal light operation is normal.

    NG

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

    OK

    END (WINDSHIELD WIPER SWITCH WAS DEFECTIVE)

  4. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY


    1. Remove the headlight dimmer switch Click here.

    2. Inspect the headlight dimmer switch Click here.


    NG

    REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY Click here

    OK

    REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY Click here

  5. CONFIRM LIGHT POSITION


    1. Check the malfunctioning turn signal light.

      Result
      Result Proceed to
      All lights do not illuminate A
      Lights on one side do not illuminate B

    B

    CHECK HARNESS AND CONNECTOR (HEADLIGHT - TURN SIGNAL FLASHER) Click here

    A

  6. CHECK HARNESS AND CONNECTOR (TURN SIGNAL FLASHER - BATTERY AND BODY GROUND)

    A01GL86E02

    1. Disconnect the L1 turn signal flasher connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L1-4 (B) - Body ground Always 11 to 14 V
      L1-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L1-7 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - TURN SIGNAL FLASHER)

    A01GNJCE02

    1. Disconnect the DA main body ECU connector.

    2. Disconnect the L1 turn signal flasher connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      DA-55 (TRNL) - L1-5 (EL) Always Below 1 Ω
      DA-56 (TRNR) - L1-6 (ER) Always Below 1 Ω
      DA-55 (TRNL) - Body ground Always 10 kΩ or higher
      DA-56 (TRNR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK TURN SIGNAL FLASHER


    1. Temporarily replace the turn signal flasher with a new or normally functioning one Click here.

    2. Check the turn signal light operation.

      OK
      Turn signal light operation is normal.

    NG

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

    OK

    END (TURN SIGNAL FLASHER WAS DEFECTIVE)

  9. CHECK HARNESS AND CONNECTOR (HEADLIGHT - TURN SIGNAL FLASHER)

    A01GLIIE07

    • *1: for LH

    • *2: for RH


    1. Disconnect the L1 turn signal flasher connector.

    2. Disconnect the B1*1 or B11*2 headlight connector.

    3. Disconnect the S51*1 or S52*2 rear combination light connector.

    4. Disconnect the z10*1 or z9*2 outer rear view mirror connector.

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      L1-3 (LL) - B1-9 Always Below 1 Ω
      L1-3 (LL) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      L1-2 (LR) - B11-9 Always Below 1 Ω
      L1-2 (LR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - TURN SIGNAL FLASHER)

    A01GNJCE02

    1. Disconnect the DA main body ECU connector.

    2. Disconnect the L1 turn signal flasher connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      DA-55 (TRNL) - L1-5 (EL) Always Below 1 Ω
      DA-56 (TRNR) - L1-6 (ER) Always Below 1 Ω
      DA-55 (TRNL) - Body ground Always 10 kΩ or higher
      DA-56 (TRNR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. CHECK TURN SIGNAL FLASHER


    1. Temporarily replace the turn signal flasher with a new or normally functioning one Click here.

    2. Check the turn signal light operation.

      OK
      Turn signal light operation is normal.

    NG

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

    OK

    END (TURN SIGNAL FLASHER WAS DEFECTIVE)