LIGHTING SYSTEM, Diagnostic DTC:B241A, B241B

DTC Code DTC Name
B241A Rear Height Control Sensor
B241B Front Height Control Sensor

DESCRIPTION

The No. 1 headlight ECU sub-assembly LH receives the vehicle height value from the absorber control ECU via CAN communication and performs auto leveling control.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
B241A Rear Height Control Sensor

    Detection condition:

  • Power switch on (IG)


    Malfunction status:

  • Abnormal vehicle height value continuously detected from rear height sensor


    Malfunction duration:

  • 10 seconds or more

 Adaptive variable suspension system No. 1 headlight ECU sub-assembly LH
B241B Front Height Control Sensor

    Detection condition:

  • Power switch on (IG)


    Malfunction status:

  • Abnormal vehicle height value continuously detected from front height sensor


    Malfunction duration:

  • 10 seconds or more

 Adaptive variable suspension system No. 1 headlight ECU sub-assembly LH

WIRING DIAGRAM

B004A07E03
*1 Absorber Control ECU
*2 No. 1 Headlight ECU Sub-assembly LH
*3 CAN Communication Line

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Clear DTCs

    2. Turn the power switch on (IG) and wait for at least 10 seconds or more.

    3. Check for DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Trouble Codes
      OK
      DTC B241A and B241B are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    GO TO ADAPTIVE VARIABLE SUSPENSION SYSTEM Click here