LIGHTING SYSTEM, Diagnostic DTC:B2410, B2411

DTC Code DTC Name
B2410 Headlight Swivel Motor LH Communication Malfunction
B2411 Headlight Swivel Motor RH Communication Malfunction

DESCRIPTION

These DTCs are stored when the AFS ECU (headlight swivel ECU assembly) detects errors in its own communication with the headlight swivel motor.

DTC No. DTC Detection Condition Trouble Area
B2410 AFS ECU (headlight swivel ECU assembly) detected errors in its own communication with headlight swivel motor LH

  • Headlight swivel motor LH

  • Harness or connector

  • AFS ECU (headlight swivel ECU assembly)
B2411 AFS ECU (headlight swivel ECU assembly) detected errors in its own communication with headlight swivel motor RH

  • Headlight swivel motor RH

  • Harness or connector

  • AFS ECU (headlight swivel ECU assembly)

WIRING DIAGRAM

A01NH1DE08

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2410 or B2411 is not output.

    NG

    CHECK HARNESS AND CONNECTOR (BATTERY - AFS ECU) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK HARNESS AND CONNECTOR (BATTERY - AFS ECU)


    1. A01NH9TE10
      Text in Illustration
      *1

      Front view of wire harness connector

      (to AFS ECU (Headlight Swivel ECU Assembly))

      Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A53-14 (IGS) - Body ground Power switch on (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (AFS ECU - BODY GROUND)


    1. A01NH9TE11
      Text in Illustration
      *1

      Front view of wire harness connector

      (to AFS ECU (Headlight Swivel ECU Assembly))

      Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A53-22 (E1) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (AFS ECU - HEADLIGHT ASSEMBLY)


    1. for HID Headlight


      1. A01NFC9E03
        Text in Illustration
        *1

        Front view of wire harness connector

        (to AFS ECU (Headlight Swivel ECU Assembly))
        *2

        Front view of wire harness connector

        (to Headlight Assembly LH)
        *3

        Front view of wire harness connector

        (to Headlight Assembly RH)

        Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector.

      2. Disconnect the A18 or A26 headlight assembly connector.

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

        Standard Resistance
        LH Side (B2410)
        Tester Connection Condition Specified Condition
        A53-1 (SMBL) - A18-8 (SMBL) Always Below 1 Ω
        A53-29 (SML) - A18-6 (SML) Always Below 1 Ω
        A53-23 (SMGL) - A18-7 (SMGL) Always Below 1 Ω
        A53-1 (SMBL) - Body ground Always 10 kΩ or higher
        A53-29 (SML) - Body ground Always 10 kΩ or higher
        A53-23 (SMGL) - Body ground Always 10 kΩ or higher
        RH Side (B2411)
        Tester Connection Condition Specified Condition
        A53-2 (SMBR) - A26-8 (SMBR) Always Below 1 Ω
        A53-10 (SMR) - A26-6 (SMR) Always Below 1 Ω
        A53-24 (SMGR) - A26-7 (SMGR) Always Below 1 Ω
        A53-2 (SMBR) - Body ground Always 10 kΩ or higher
        A53-10 (SMR) - Body ground Always 10 kΩ or higher
        A53-24 (SMGR) - Body ground Always 10 kΩ or higher

    2. for LED Headlight


      1. A01NFC9E04
        Text in Illustration
        *1

        Front view of wire harness connector

        (to AFS ECU (Headlight Swivel ECU Assembly))
        *2

        Front view of wire harness connector

        (to Headlight Assembly LH)
        *3

        Front view of wire harness connector

        (to Headlight Assembly RH)

        Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector.

      2. Disconnect the A85 or A86 headlight assembly connector.

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

        Standard Resistance
        LH Side (B2410)
        Tester Connection Condition Specified Condition
        A53-1 (SMBL) - A85-8 (SMBL) Always Below 1 Ω
        A53-29 (SML) - A85-6 (SML) Always Below 1 Ω
        A53-23 (SMGL) - A85-7 (SMGL) Always Below 1 Ω
        A53-1 (SMBL) - Body ground Always 10 kΩ or higher
        A53-29 (SML) - Body ground Always 10 kΩ or higher
        A53-23 (SMGL) - Body ground Always 10 kΩ or higher
        RH Side (B2411)
        Tester Connection Condition Specified Condition
        A53-2 (SMBR) - A86-8 (SMBR) Always Below 1 Ω
        A53-10 (SMR) - A86-6 (SMR) Always Below 1 Ω
        A53-24 (SMGR) - A86-7 (SMGR) Always Below 1 Ω
        A53-2 (SMBR) - Body ground Always 10 kΩ or higher
        A53-10 (SMR) - Body ground Always 10 kΩ or higher
        A53-24 (SMGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)


    1. A01NESHE04
      Text in Illustration
      *1

      Component with harness connected

      (AFS ECU (Headlight Swivel ECU Assembly))

      Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector.

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

      Standard Voltage
      LH Side (B2410)
      Tester Connection Condition Specified Condition
      A53-1 (SMBL) - A53-23 (SMGL) Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      RH Side (B2411)
      Tester Connection Condition Specified Condition
      A53-2 (SMBR) - A53-24 (SMGR) Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V

    NG

    REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Click here

    OK

  6. INSPECT HEADLIGHT UNIT


    1. for HID Headlight


      1. A01NE7IE02
        Text in Illustration
        *1

        Component without harness connected

        (Headlight Unit LH)
        *2

        Component without harness connected

        (Headlight Unit RH)
        *3

        Front view of wire harness connector

        (to Headlight Swivel Motor LH or RH)

        Remove the headlight unit Click here.

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

        Standard Resistance
        LH Side (B2410)
        Tester Connection Condition Specified Condition
        A18-8 (SMBL) - 3 (IG) Always Below 1 Ω
        A18-6 (SML) - 2 (LIN) Always Below 1 Ω
        A18-7 (SMGL) - 1 (GND) Always Below 1 Ω
        A18-8 (SMBL) - Body ground Always 10 kΩ or higher
        A18-6 (SML) - Body ground Always 10 kΩ or higher
        A18-7 (SMGL) - Body ground Always 10 kΩ or higher
        RH Side (B2411)
        Tester Connection Condition Specified Condition
        A26-8 (SMBR) - 3 (IG) Always Below 1 Ω
        A26-6 (SMR) - 2 (LIN) Always Below 1 Ω
        A26-7 (SMGR) - 1 (GND) Always Below 1 Ω
        A26-8 (SMBR) - Body ground Always 10 kΩ or higher
        A26-6 (SMR) - Body ground Always 10 kΩ or higher
        A26-7 (SMGR) - Body ground Always 10 kΩ or higher

    2. for LED Headlight


      1. A01NE7IE03
        Text in Illustration
        *1

        Component without harness connected

        (Headlight Unit LH)
        *2

        Component without harness connected

        (Headlight Unit RH)
        *3

        Front view of wire harness connector

        (to Headlight Swivel Motor LH or RH)

        Remove the headlight unit Click here.

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

        Standard Resistance
        LH Side (B2410)
        Tester Connection Condition Specified Condition
        A85-8 (SMBL) - 3 (IG) Always Below 1 Ω
        A85-6 (SML) - 2 (LIN) Always Below 1 Ω
        A85-7 (SMGL) - 1 (GND) Always Below 1 Ω
        A85-8 (SMBL) - Body ground Always 10 kΩ or higher
        A85-6 (SML) - Body ground Always 10 kΩ or higher
        A85-7 (SMGL) - Body ground Always 10 kΩ or higher
        RH Side (B2411)
        Tester Connection Condition Specified Condition
        A86-8 (SMBR) - 3 (IG) Always Below 1 Ω
        A86-6 (SMR) - 2 (LIN) Always Below 1 Ω
        A86-7 (SMGR) - 1 (GND) Always Below 1 Ω
        A86-8 (SMBR) - Body ground Always 10 kΩ or higher
        A86-6 (SMR) - Body ground Always 10 kΩ or higher
        A86-7 (SMGR) - Body ground Always 10 kΩ or higher
        Result
        Result Proceed to
        OK A
        NG (for HID Headlight) B
        NG (for LED Headlight) C

    B

    REPLACE HEADLIGHT UNIT (for HID Headlight) Click here

    C

    REPLACE HEADLIGHT UNIT (for LED Headlight) Click here

    A

  7. REPLACE HEADLIGHT SWIVEL MOTOR (HEADLIGHT REFLECTOR)


    1. Temporarily replace the headlight swivel motor (headlight reflector) with a new or normally functioning one Click here for HID Headlight, Click here for LED Headlight).

    2. Check for DTCs Click here.

      OK
      DTC B2410 or B2411 is not output.

    NG

    REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Click here

    OK

    END