AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2415

DTC Code DTC Name
B2415 Vehicle Speed Sensor Malfunction

DESCRIPTION

The headlight light control ECU sub-assembly receives wheel speed signals from the brake booster with master cylinder assembly.

The headlight light control ECU sub-assembly LH outputs DTC B2415.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2415 Vehicle Speed Sensor Malfunction Malfunction in vehicle speed signal

  • Headlight light control ECU sub-assembly LH

  • Electronically controlled brake system

WIRING DIAGRAM

A00010XE06
*1 Headlight Light Control ECU Sub-assembly LH
*2 Brake Booster with Master Cylinder Assembly
*3 CAN Communication Line

CAUTION / NOTICE / HINT

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 DTC.

    Click here

  • After the headlight light control ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.

    Click here

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Trouble Codes
      Result
      Proceed to
      DTC B2415 output does not occur
      DTC B2415 output occurs

    DTC B2415 output does not occur

    USE SIMULATION METHOD TO CHECK Click here

    DTC B2415 output occurs

  3. CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)


    1. Check for DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      OK
      Electronically controlled system DTCs are not output.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY LH Click here

    NG

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here