LIGHTING SYSTEM Clearance Light does not Illuminate

WIRING DIAGRAM

A01EOFPE04

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (HEADLIGHT DIMMER SWITCH)


    1. Using the intelligent tester, read the Data List Click here.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Head Light SW (Tail) Headlight dimmer switch (Tail) signal/ON or OFF

      ON: Headlight dimmer switch (Tail) on

      OFF: Headlight dimmer switch off

      		 -
      OK
      When the headlight dimmer switch operation is performed, the result will be the same as above.

    NG

    INSPECT HEADLIGHT DIMMER SWITCH Click here

    OK

  2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TAILLIGHT)


    1. Using the intelligent tester, perform the Active Test Click here.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Taillight Relay Taillight OFF/ON -
      OK
      Taillight turns on/off.

    NG

    CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BODY GROUND) Click here

    OK

    REPLACE MAIN BODY ECU

  3. INSPECT HEADLIGHT DIMMER SWITCH


    1. for LHD


      1. Remove the headlight dimmer switch Click here.

        A01EROOE06

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        18 (T) - 12 (EL) Headlight dimmer switch (Light control switch) tail Below 1 Ω
        Headlight dimmer switch (Light control switch) off 10 kΩ or higher

    2. for RHD


      1. Remove the headlight dimmer switch Click here.

        A01ER6LE01

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        13 (T) - 19 (EL) Headlight dimmer switch (Light control switch) tail Below 1 Ω
        Headlight dimmer switch (Light control switch) off 10 kΩ or higher
        Result
        Result Proceed to
        OK A
        NG (for LHD) B
        NG (for RHD) C

    B

    REPLACE HEADLIGHT DIMMER SWITCH Click here

    C

    REPLACE HEADLIGHT DIMMER SWITCH Click here

    A

  4. CHECK HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCH - MAIN BODY ECU AND BODY GROUND)


    1. A01EQA4E03

      Disconnect the E14 switch connector.

    2. Disconnect the E1 ECU connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      E14-18 (T) - E1-23 (TAIL) Always Below 1 Ω
      E14-12 (EL) - Body ground
      E14-18 (T) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      E14-13 (T) - E1-23 (TAIL) Always Below 1 Ω
      E14-19 (EL) - Body ground
      E14-13 (T) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU

  5. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BODY GROUND)

    A01ES6HE02

    1. Disconnect the 2A ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      2A-1 (TRLY) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK MAIN BODY ECU


    1. A01ERSJE01

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      2B-8 (TRLY) - Body ground Engine switch on (IG) and headlight dimmer switch (tail) on 11 to 14 V
      2C-22 (TRLY) - Body ground

    NG

    REPLACE MAIN BODY ECU

    OK

  7. CONFIRM LIGHT POSITION


    1. Check the malfunctioning light.

      Result
      Result Proceed to
      Front clearance light does not illuminate A
      Taillight do not illuminate (rear combination light) B
      Taillight does not illuminate (rear light) C
      License plate light does not illuminate D

    B

    CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - MAIN BODY ECU AND BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (REAR LIGHT - MAIN BODY ECU AND BODY GROUND) Click here

    D

    CHECK HARNESS AND CONNECTOR (LICENSE PLATE LIGHT - MAIN BODY ECU AND BODY GROUND) Click here

    A

  8. CHECK HARNESS AND CONNECTOR (HEADLIGHT UNIT - MAIN BODY ECU AND BODY GROUND)


    1. A01ER8PE06

      Disconnect the 2B ECU connector.

    2. Disconnect the A40*1 or A46*2 light connector.


      • *1: for LH

      • *2: for RH

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      2B-8 (TRLY) - A40-8 (B) Always Below 1 Ω
      A40-2 (E) - Body ground
      A40-8 (B) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      2B-8 (TRLY) - A46-8 (B) Always Below 1 Ω
      A46-2 (E) - Body ground
      A46-8 (B) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE HEADLIGHT UNIT Click here

  9. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - MAIN BODY ECU AND BODY GROUND)


    1. A01EN8GE01

      Disconnect the 2C ECU connector.

    2. Disconnect the K4*1 or L3*2 light connector.


      • *1: for LH

      • *2: for RH

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      2C-22 (TRLY) - K4-6 (TL) Always Below 1 Ω
      K4-3 (E) - Body ground
      K4-6 (TL) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      2C-22 (TRLY) - L3-6 (TL) Always Below 1 Ω
      L3-3 (E) - Body ground
      L3-6 (TL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE REAR COMBINATION LIGHT Click here

  10. CHECK HARNESS AND CONNECTOR (REAR LIGHT - MAIN BODY ECU AND BODY GROUND)


    1. A01ER6KE01

      Disconnect the 2C ECU connector.

    2. Disconnect the S11*1 or S12*2 light connector.


      • *1: for LH

      • *2: for RH

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      2C-22 (TRLY) - S11-3 Always Below 1 Ω
      S11-1 - Body ground
      S11-3 - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      2C-22 (TRLY) - S12-3 Always Below 1 Ω
      S12-1 - Body ground
      S12-3 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE REAR LIGHT Click here

  11. CHECK HARNESS AND CONNECTOR (LICENSE PLATE LIGHT - MAIN BODY ECU AND BODY GROUND)


    1. A01EOFRE01

      Disconnect the 2C ECU connector.

    2. Disconnect the S23 light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2C-22 (TRLY) - S23-2 (B) Always Below 1 Ω
      S23-1 (E) - Body ground
      S23-2 (B )- Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE LICENSE PLATE LIGHT Click here