LIGHTING SYSTEM, Diagnostic DTC:B2412, B2413

DTC Code DTC Name
B2412 Headlight Swivel Motor LH Malfunction
B2413 Headlight Swivel Motor RH Malfunction

DESCRIPTION

Each swivel motor receives a signal from the headlight swivel ECU to operate and sends a signal indicating the direction of the headlight and condition of the headlight swivel motor to the headlight swivel ECU.

DTC Code DTC Detection Condition Trouble Area
B2412

  • Malfunction in the headlight swivel motor LH.

  • Open or short in the headlight swivel motor LH circuit.

  • Headlight swivel ECU assembly

  • Headlight unit assembly LH (for HID Headlight)

  • Headlight assembly LH (for LED Headlight)

  • Headlight swivel motor LH

  • Harness or connector
B2413

  • Malfunction in the headlight swivel motor RH.

  • Open or short in the headlight swivel motor RH circuit.

  • Headlight swivel ECU assembly

  • Headlight unit assembly RH (for HID Headlight)

  • Headlight assembly RH (for LED Headlight)

  • Headlight swivel motor RH

  • Harness or connector

WIRING DIAGRAM

A01FUBQE08

INSPECTION PROCEDURE

Note


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

  • After replacing the headlight swivel ECU, perform initialization and registration of vehicle information Click here.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B2412 or B2413 output does not occur.

    NG

    PERFORM ACTIVE TEST USING GTS (HEADLIGHT SWIVEL MOTOR) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. PERFORM ACTIVE TEST USING GTS (HEADLIGHT SWIVEL MOTOR)


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

      AFS
      Tester Display Test Part Control Range Diagnostic Note
      Drive Swivel Motor LH LEFT* Headlight swivel motor LH left direction rotation ON/OFF

      ON: Move left

      OFF: Stop
      Drive Swivel Motor LH RIGHT* Headlight swivel motor LH right direction rotation ON/OFF

      ON: Move right

      OFF: Stop
      Drive Swivel Motor RH LEFT* Headlight swivel motor RH left direction rotation ON/OFF

      ON: Move left

      OFF: Stop
      Drive Swivel Motor RH RIGHT* Headlight swivel motor RH right direction rotation ON/OFF

      ON: Move right

      OFF: Stop

      • *: Perform the Active Test with the power switch on (Ready) and vehicle stopped.

      OK
      Headlight swivel motors operate normally.

    NG

    CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - BATTERY AND BODY GROUND) Click here

    OK

  4. CHECK HEADLIGHT SWIVEL MOTOR


    1. for HID Headlight:


      1. Temporarily replace the headlight swivel motor with a new or normally functioning one Click here.

    2. for LED Headlight:


      1. Temporarily replace the headlight swivel motor with a new or normally functioning one Click here.

    3. Check for DTCs Click here.

      OK
      DTC B2412 or B2413 output does not occur.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    A

    END (HEADLIGHT SWIVEL MOTOR WAS DEFECTIVE)

  5. CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - BATTERY AND BODY GROUND)


    1. A01FS0AE39
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Headlight Swivel ECU Assembly)

      Disconnect the headlight swivel ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A7-14 (IGS) - Body ground Power switch on (IG) 11 to 14 V
      A7-15 (IG) - Body ground

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A7-22 (E1) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      for HID Headlight A
      for LED Headlight B

    B

    CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - HEADLIGHT) Click here

    A

  7. CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - HEADLIGHT UNIT)


    1. Disconnect the A7 headlight swivel ECU connector.

    2. Disconnect the B5*1 or B2*2 headlight 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
      A7-1 (SMBL) - B5-12 (SMBL) Always Below 1 Ω
      A7-29 (SML) - B5-1 (SML) Always Below 1 Ω
      A7-23 (SMGL) - B5-2 (LH E) Always Below 1 Ω
      A7-1 (SMBL) - Body ground Always 10 kΩ or higher
      A7-29 (SML) - Body ground Always 10 kΩ or higher
      A7-23 (SMGL) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      A7-2 (SMBR) - B2-12 (SMBR) Always Below 1 Ω
      A7-10 (SMR) - B2-1 (SMR) Always Below 1 Ω
      A7-24 (SMGR) - B2-2 (RH E) Always Below 1 Ω
      A7-2 (SMBR) - Body ground Always 10 kΩ or higher
      A7-10 (SMR) - Body ground Always 10 kΩ or higher
      A7-24 (SMGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT HEADLIGHT UNIT ASSEMBLY


    1. Remove the headlight unit Click here.

      A01FTXPE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Headlight Swivel Motor)

      		 *b

      Component without harness connected

      (Headlight Unit Assembly)

    2. Remove the headlight lens Click here.

    3. Disconnect the headlight swivel motor connector.

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      12 (SMBL) - 1 Always Below 1 Ω
      1 (SML) - 2
      2 (LH E) - 3
      for RH
      Tester Connection Condition Specified Condition
      12 (SMBR) - 1 Always Below 1 Ω
      1 (SMR) - 2
      2 (RH E) - 3

    NG

    REPLACE HEADLIGHT UNIT ASSEMBLY Click here

    OK

  9. CHECK HEADLIGHT SWIVEL MOTOR


    1. Temporarily replace the headlight swivel motor with a new or normally functioning one Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2412 or B2413 output does not occur.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    A

    END (HEADLIGHT SWIVEL MOTOR WAS DEFECTIVE)

  10. CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - HEADLIGHT)


    1. Disconnect the A7 headlight swivel ECU connector.

    2. Disconnect the B5*1 or B2*2 headlight 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
      A7-1 (SMBL) - B5-12 (SMBL) Always Below 1 Ω
      A7-29 (SML) - B5-1 (SML) Always Below 1 Ω
      A7-23 (SMGL) - B5-2 (LH E) Always Below 1 Ω
      A7-1 (SMBL) - Body ground Always 10 kΩ or higher
      A7-29 (SML) - Body ground Always 10 kΩ or higher
      A7-23 (SMGL) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      A7-2 (SMBR) - B2-12 (SMBR) Always Below 1 Ω
      A7-10 (SMR) - B2-1 (SMR) Always Below 1 Ω
      A7-24 (SMGR) - B2-2 (RH E) Always Below 1 Ω
      A7-2 (SMBR) - Body ground Always 10 kΩ or higher
      A7-10 (SMR) - Body ground Always 10 kΩ or higher
      A7-24 (SMGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. INSPECT HEADLIGHT ASSEMBLY


    1. Remove the headlight Click here.

      A01FTYBE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Headlight Swivel Motor)

      		 *b

      Component without harness connected

      (Headlight Assembly)

    2. Remove the headlight lens Click here.

    3. Disconnect the headlight swivel motor connector.

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      12 (SMBL) - 1 Always Below 1 Ω
      1 (SML) - 2
      2 (LH E) - 3
      for RH
      Tester Connection Condition Specified Condition
      12 (SMBR) - 1 Always Below 1 Ω
      1 (SMR) - 2
      2 (RH E) - 3

    NG

    REPLACE HEADLIGHT ASSEMBLY Click here

    OK

  12. CHECK HEADLIGHT SWIVEL MOTOR


    1. Temporarily replace the headlight swivel motor with a new or normally functioning one Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2412 or B2413 output does not occur.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    A

    END (HEADLIGHT SWIVEL MOTOR WAS DEFECTIVE)