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Home >> Lexus >> 2023 >> LC 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 259 (Airbag System - Diagnostic Codes (Coupe) (5 Of 5) & Symptom Tests) >> Airbag System >> DTC U0154: Lost Communication with Restraints Occupant Classification System Module [04/2020 - ] >> Procedure

DTC U0154: Lost Communication with Restraints Occupant Classification System Module [04/2020 - ]: Procedure

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  1. CLEAR DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [04/2020 - ]

      Body Electrical > SRS Airbag > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK DTC 
    1. Turn the engine switch on (IG), and wait for at least 60 seconds.
    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [04/2020 - ]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC U0154 is not output
      DTC U0154 is output

    Result: 

    DTC U0154 is not output 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2020 - 05/2023]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ] 

    Result: 

    DTC U0154 is output 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 05/2023]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ]