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Home >> Lexus >> 2021 >> IS 350 RWD >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes (2 Of 2) & Circuit Tests >> Pre-Collision System >> DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [09/2020 - ] >> Procedure
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DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [09/2020 - ]: Procedure

  1. CHECK VEHICLE STABILITY CONTROL SYSTEM 
    1. Check the DTCs.

      Chassis > Brake/EPB > Trouble Codes 

      OK

      Vehicle stability control system DTCs are not output.

      HINT: 

      If U0418-81 is output in the pre-collision system, vehicle stability control system DTCs may also have been output. Check the vehicle stability control system first.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FORWARD RECOGNITION CAMERA. Refer to  REMOVAL [09/2020 - ] 

    Result: 

    NG 

    GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2020 - ]