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Home >> Lexus >> 2022 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Left Side Lidar System - Diagnostic Codes >> LEFT SIDE LiDAR SYSTEM >> DTC U0322-51: Software Incompatibility with Body Control Module Not Programmed; DTC U1320-51: Software Incompatibility with Advanced Drive Control Module Not Programmed [11/2021 - ] >> Procedure

DTC U0322-51: Software Incompatibility with Body Control Module Not Programmed; DTC U1320-51: Software Incompatibility with Advanced Drive Control Module Not Programmed [11/2021 - ]: Procedure

  1. CHECK DTC (ETHERNET COMMUNICATION SYSTEM) 

    HINT: 

    Refer to DTC CHECK / CLEAR [11/2021 - ]

    1. Check for DTCs.

      Body Electrical > Ethernet Switch1 > Trouble Codes 

      Body Electrical > Ethernet Switch2 > Trouble Codes 

      Result

      Result Proceed to
      No DTCs output from Ethernet switch 1 and Ethernet switch 2 A
      DTC output from Ethernet switch 1 or Ethernet switch 2 B

    Result: 

    GO TO ETHERNET COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 10/2023]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ] 

    Result: 

    See step  2

  2. UPDATE VEHICLE SPECIFICATION INFORMATION 
    1. Update the vehicle specification information.

      Chassis > Advanced Drive Control > Utility 

      Tester Display
      Vehicle Information Registration

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK DTC 
    1. Clear the DTCs.

      Chassis > Left Side LiDAR > Clear DTCs 

    2. Check for DTCs.

      Chassis > Left Side LiDAR > Trouble Codes 

      Result

      Result Proceed to
      DTCs U0322-51 or U1320-51 are output. A
      DTCs are not output. B

    Result: 

    END (UPDATE MALFUNCTION) 

    Result: 

    See step  4

  4. CHECK VEHICLE CONTROL HISTORY (RoB) (ADVANCED DRIVE SYSTEM) 
    1. Clear the vehicle control history (RoB).

      Chassis > Advanced Drive Control > Utility 

      Tester Display
      Vehicle Control History (RoB)
    2. Wait at least 5 minutes.
    3. Check the vehicle control history (RoB).

      Chassis > Advanced Drive Control > Utility 

      Tester Display
      Vehicle Control History (RoB)

      Result

      Result Proceed to
      X2603, X2642 and X2651 are not output A
      X2603, X2642 or X2651 are output B

    Result: 

    REPLACE LIDAR ADVANCED DRIVE ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    REPLACE ADVANCED DRIVE ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023]  , or refer to  REMOVAL [10/2023 - ]