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DTC B1ACA-71: Front Right Speaker Cable Actuator Stuck [10/2022 - ]: Procedure

  1. CHECK PROBLEM SYMPTOM 
    1. Confirm the problem symptoms and proceed to the respective link.

      Result

      Result Proceed to
      No sound is output from the front No. 1 speaker assembly RH or front No. 2 speaker assembly RH A
      No sound is output from the front No. 3 speaker assembly RH (w/ Manual [SOS] Switch) B
      No sound is output from the front No. 3 speaker assembly RH (w/o Manual [SOS] Switch) C

    Result: 

    B 

    See step  9

    Result: 

    C 

    See step  11

    Result: 

    A 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY RH) 

    Pre-procedure1

    1. Disconnect the M2 stereo component amplifier assembly connector.
    2. Disconnect the G5 front No. 2 speaker assembly RH connector.

      Procedure1

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M2-9 (FR+) - G5-4 (TWR+) Always Below 1 Ω
      M2-24 (FR-) - G5-2 (TWR-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (FRONT NO. 2 SPEAKER ASSEMBLY RH - FRONT NO. 1 SPEAKER ASSEMBLY RH) 

    Pre-procedure1

    1. Disconnect the G5 front No. 2 speaker assembly RH connector.
    2. Disconnect the I1 front No. 1 speaker assembly RH connector.

      Procedure1

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G5-3 (+) - I1-2 (+) Always Below 1 Ω
      G5-1 (-) - I1-1 (-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY RH 

    Refer to INSPECTION [11/2018 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY RH 

    Refer to REMOVAL [11/2018 - ]

    Result: 

    OK 

    See step  5

  5. REPLACE FRONT NO. 2 SPEAKER ASSEMBLY RH 
    1. Replace the front No. 2 speaker assembly with a new or known good one.

      HINT: 

      Refer to REMOVAL [11/2018 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  6

  6. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  7. SPEAKER LINE ELECTRICITY CHECK 
    1. In accordance with the display of the GTS, perform a speaker line electricity check.

      Body Electrical > Navigation System > Utility 

      Tester Display
      Speaker Line Electricity Check

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  8

  8. CHECK FOR DTC 
    1. Check for DTCs and proceed to the following step.

      Body Electrical > Navigation System > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTC B1ACA-71 is output B

    Result: 

    A 

    END (FRONT NO. 2 SPEAKER ASSEMBLY RH IS DEFECTIVE) 

    Result: 

    B 

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY 

    Refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

  9. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY RH, DCM [TELEMATICS TRANSCEIVER]) 

    Pre-procedure1

    1. Disconnect the M2 stereo component amplifier assembly connector.
    2. Disconnect the G7 front No. 3 speaker assembly RH connector.
    3. Disconnect the G133 DCM (telematics transceiver) connector.*

      Procedure1

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M2-13 (TWR+) - G133-1 (SPI+) Always Below 1 Ω
      M2-28 (TWR-) - G133-2 (SPI-) Always Below 1 Ω
      G133-3 (SPO+) - G7-1 (+) Always Below 1 Ω
      G133-4 (SPO-) - G7-2 (-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    5. None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  10

  10. INSPECT DCM (TELEMATICS TRANSCEIVER) (SPO+, SPO-, SPI+, SPI-) 

    Pre-procedure1

    1. Remove the DCM (telematics transceiver).
      GTY1039163Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (DCM [Telematics Transceiver])

      HINT: 

      Refer to REMOVAL [10/2022 - ]

      Procedure1

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 (SPO+) - 1 (SPI+) Always Below 1 Ω
      4 (SPO-) - 2 (SPI-) Always Below 1 Ω
      1 (SPI+) - 2 (SPI-) Always 10 kΩ or higher
      3 (SPO+) - 4 (SPO-) Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    3. None

    Result: 

    OK 

    See step  12

    Result: 

    NG 

    REPLACE DCM (TELEMATICS TRANSCEIVER) 

    Refer to REMOVAL [10/2022 - ]

  11. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY RH) 

    Pre-procedure1

    1. Disconnect the M2 stereo component amplifier assembly connector.
    2. Disconnect the G7 front No. 3 speaker assembly RH connector.

      Procedure1

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M2-13 (TWR+) - G7-1 (+) Always Below 1 Ω
      M2-28 (TWR-) - G7-2 (-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  12

  12. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY RH 

    Refer to INSPECTION [11/2018 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY RH 

    Refer to REMOVAL [11/2018 - ]

    Result: 

    OK 

    See step  13

  13. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  14

  14. SPEAKER LINE ELECTRICITY CHECK 
    1. In accordance with the display of the GTS, perform a speaker line electricity check.

      Body Electrical > Navigation System > Utility 

      Tester Display
      Speaker Line Electricity Check

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  15

  15. CHECK FOR DTC 
    1. Check for DTCs and proceed to the following step.

      Body Electrical > Navigation System > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTC B1ACA-71 is output B

    Result: 

    A 

    END (FRONT NO. 3 SPEAKER ASSEMBLY RH IS DEFECTIVE) 

    Result: 

    B 

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY 

    Refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

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