LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2017 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Automatic Headlight Beam Level Control System (Diagnostic Codes & Circuit Tests) >> Automatic Headlight Beam Level Control System >> DTC B2452: Height Control Sensor Data Out of Range When Initializing [10/2015 - 08/2019] >> Procedure

DTC B2452: Height Control Sensor Data Out of Range When Initializing [10/2015 - 08/2019]: Procedure

  1. CLEAR DTC 
    1. for Single Beam Headlight without AFS (Adaptive Front-lighting System):
      1. Clear the DTCs.

        Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

        Body Electrical > HL AutoLeveling > Clear DTCs 

    2. for Triple Beam Headlight, for Single Beam Headlight with AFS (Adaptive Front-lighting System):
      1. Clear the DTCs.

        Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

        Body Electrical > AFS > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK FOR DTC 
    1. Turn the power switch on (IG).
    2. for Single Beam Headlight without AFS (Adaptive Front-lighting System):
      1. Check for DTCs.

        Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

        Body Electrical > HL AutoLeveling > Trouble Codes 

        OK

        DTC B2452 is not output.

    3. for Triple Beam Headlight, for Single Beam Headlight with AFS (Adaptive Front-lighting System):
      1. Check for DTCs.

        Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

        Body Electrical > AFS > Trouble Codes 

        OK

        DTC B2452 is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 12/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 03/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2018 - 08/2019] 

    Result: 

    NG 

    See step  3

  3. CHECK AND REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH 
    1. Check the installation condition of the rear height control sensor sub-assembly RH.

      OK

      Rear height control sensor sub-assembly RH is installed correctly.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    NG 

    INSTALL PARTS CORRECTLY. Refer to  INSTALLATION [10/2015 - 03/2018]  , or refer to  INSTALLATION [03/2018 - 08/2019]