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Home >> Lexus >> 2023 >> RX 500h >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio / Video System (14 Inch Display) - Diagnostic Codes (2 Of 2) & Symptom Tests >> AUDIO AND VISUAL SYSTEM (for 14 Inch Display) >> DTC B1ADF-71: Sub Woofer Speaker Cable Actuator Stuck [10/2022 - ] >> Procedure

DTC B1ADF-71: Sub Woofer Speaker Cable Actuator Stuck [10/2022 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - NO. 1 SPEAKER ASSEMBLY WITH BOX) 

    Pre-procedure1

    • Disconnect the C31 stereo component amplifier assembly connector.
    • Disconnect the H105 No. 1 speaker assembly with box connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      C31-6 (WF1+) - H105-2 (WF1+) Always Below 1 Ω Ω
      C31-21 (WF1-) - H105-1 (WF1-) Always Below 1 Ω Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. INSPECT NO. 1 SPEAKER ASSEMBLY WITH BOX 

    Refer to INSPECTION [10/2022 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE NO. 1 SPEAKER ASSEMBLY WITH BOX. Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ] 

    Result: 

    OK 

    See step  3

  3. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK FOR DTC 

    Pre-procedure1

    • In accordance with the display of the GTS, perform a speaker circuit energization inspection.

      HINT: 

      Refer to UTILITY [10/2022 - ]

      Body Electrical > Navigation System > Utility 

      Tester Display
      Speaker Line Electricity Check
    • Check for DTCs and proceed to the following step.

      Body Electrical > Navigation System > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      B1ADF-71 is output B

    Post-procedure1

    • None

    Result: 

    A 

    END (NO. 1 SPEAKER ASSEMBLY WITH BOX IS DEFECTIVE) 

    Result: 

    B 

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ]