LIGHTING SYSTEM, Diagnostic DTC:B2417, B2418

DTC Code DTC Name
B2417 Headlight Beam Level Control Motor LH Malfunction
B2418 Headlight Beam Level Control Motor RH Malfunction

DESCRIPTION

The headlight swivel motor (leveling portion) receives a signal from the headlight swivel ECU to operate. The headlight swivel ECU receives a signal indicating the operating conditions of the headlight swivel motor (leveling portion).

DTC Code DTC Detection Condition Trouble Area
B2417

  • Malfunction in the headlight swivel motor LH (leveling portion).

  • Open or short in the headlight swivel motor LH (leveling portion) circuit.

  • Headlight swivel ECU assembly

  • Headlight unit assembly LH

  • Headlight swivel motor LH (leveling portion)

  • Harness or connector
B2418

  • Malfunction in the headlight swivel motor RH (leveling portion).

  • Open or short in the headlight swivel motor RH (leveling portion) circuit.

  • Headlight swivel ECU assembly

  • Headlight unit assembly RH

  • Headlight swivel motor RH (leveling portion)

  • Harness or connector

WIRING DIAGRAM

A01FFEUE02

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 B2417 or B2418 output does not occur.

    NG

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

    OK

    USE SIMULATION METHOD TO CHECK Click here

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


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

      AFS
      Tester Display Test Part Control Range Diagnostic Note
      Drive The Leveling Motor UP* Headlight swivel motor (leveling portion) upward operation ON/OFF

      ON: Move up

      OFF: Stop
      Drive The Leveling Motor DOWN* Headlight swivel motor (leveling portion) downward operation ON/OFF

      ON: Move down

      OFF: Stop

      • *: Perform the Active Test with the engine running and vehicle stopped.

      OK
      Headlight swivel motors (leveling portion) operate normally.

    NG

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

    OK

  4. CHECK HEADLIGHT SWIVEL MOTOR (LEVELING PORTION)


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

    2. Check for DTCs Click here.

      OK
      DTC B2417 or B2418 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 [LEVELING PORTION] WAS DEFECTIVE)

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


    1. A01FH7RE39
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Headlight Swivel ECU)

      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 Engine 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 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 unit 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)*1 Always Below 1 Ω
      A7-3 (LHT) - B5-11 (LHB1)*2 Always Below 1 Ω
      A7-30 (LH+) - B5-10 (LHM+) Always Below 1 Ω
      A7-23 (SMGL) - B5-2 (LH E) Always Below 1 Ω
      A7-1 (SMBL) - Body ground*1 Always 10 kΩ or higher
      A7-3 (LHT) - Body ground*2 Always 10 kΩ or higher
      A7-30 (LH+) - 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)*1 Always Below 1 Ω
      A7-4 (RHT) - B2-11 (RHB1)*2 Always Below 1 Ω
      A7-11 (RH+) - B2-10 (RHM+) Always Below 1 Ω
      A7-24 (SMGR) - B2-2 (RH E) Always Below 1 Ω
      A7-2 (SMBR) - Body ground*1 Always 10 kΩ or higher
      A7-4 (RHT) - Body ground*2 Always 10 kΩ or higher
      A7-11 (RH+) - Body ground Always 10 kΩ or higher
      A7-24 (SMGR) - Body ground Always 10 kΩ or higher

      • *1: w/ AFS

      • *2: w/o AFS


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT HEADLIGHT UNIT ASSEMBLY


    1. Remove the headlight unit Click here.

      A01FI48E06
      Text in Illustration
      *A w/ AFS *B w/o AFS
      *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*1 Always Below 1 Ω
      11 (LHB1) - 1*2
      10 (LHM+) - 4
      2 (LH E) - 3
      for RH
      Tester Connection Condition Specified Condition
      12 (SMBR) - 1*1 Always Below 1 Ω
      11 (RHB1) - 1*2
      10 (RHM+) - 4
      2 (RH E) - 3

      • *1: w/ AFS

      • *2: w/o AFS


    NG

    REPLACE HEADLIGHT UNIT ASSEMBLY Click here

    OK

  8. CHECK HEADLIGHT SWIVEL MOTOR (LEVELING PORTION)


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

    2. Check for DTCs Click here.

      OK
      DTC B2417 or B2418 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 [LEVELING PORTION] WAS DEFECTIVE)