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Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 131 (Smart Access System (For Entry) - Symptom Tests (2 Of 2)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function, Gasoline Model) >> Entry Interior Alarm does not Sound [11/2021 - ] >> Procedure

Entry Interior Alarm does not Sound [11/2021 - ]: Procedure

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  1. CHECK FOR DTC 
    1. Check for DTCs.

      Body Electrical > Smart Access > Trouble Codes 

      Result

      Result Proceed to
      DTC U0155-87 is not output A
      DTC U0155-87 is output B

    Result: 

    A 

    GO TO METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

    Result: 

    B 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

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