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DTC B15C3: Speaker Output Short [12/2019 - 10/2022]: Procedure

  1. CHECK MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/o Stereo Component Amplifier Assembly A
      w/ Stereo Component Amplifier Assembly B

    Result: 

    B 

    See step  11

    Result: 

    A 

    See step  2

  2. CHECK MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Telematics Transceiver A
      w/o Telematics Transceiver B

    Result: 

    B 

    See step  6

    Result: 

    A 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY, DCM (TELEMATICS TRANSCEIVER) OR SPEAKERS - BODY GROUND) 
    1. Disconnect the H9 radio and display receiver assembly connector.
    2. Disconnect the H12 DCM (telematics transceiver) connector.
    3. Disconnect the H73 front No. 2 speaker assembly LH connector.
    4. Disconnect the K1 and K6 rear speaker assembly connectors.
    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H9-1 (FR+) or H12-1 (SPI+) - Body ground Always 10 kΩ or higher
      H9-6 (FR-) or H12-2 (SPI-) - Body ground Always 10 kΩ or higher
      H9-2 (FL+) or H73-4 (TWL+) - Body ground Always 10 kΩ or higher
      H9-7 (FL-) or H73-2 (TWL-) - Body ground Always 10 kΩ or higher
      H9-4 (RR+) or K1-1 - Body ground Always 10 kΩ or higher
      H9-9 (RR-) or K1-2 - Body ground Always 10 kΩ or higher
      H9-3 (RL+) or K6-1 - Body ground Always 10 kΩ or higher
      H9-8 (RL-) or K6-2 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) OR SPEAKER - BODY GROUND) 
    1. Disconnect the H12 DCM (telematics transceiver) connector.
    2. Disconnect the H71 front No. 2 speaker assembly RH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H12-3 (SPO+) or H71-4 (TWR+) - Body ground Always 10 kΩ or higher
      H12-4 (SPO-) or H71-2 (TWR-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  5

  5. INSPECT DCM (TELEMATICS TRANSCEIVER) 
    1. Remove the DCM (telematics transceiver).

      Refer to REMOVAL [12/2019 - 10/2022]

    2. Measure the resistance according to the value(s) in the table below.
      GTY843494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (DCM (Telematics Transceiver))

      Standard Resistance

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

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  7

    Result: 

    NG 

    REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to  REMOVAL [12/2019 - 10/2022] 

  6. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY, SPEAKERS - BODY GROUND) 
    1. Disconnect the H9 radio and display receiver assembly connector.
    2. Disconnect the H71 and H73 front No. 2 speaker assembly connectors.
    3. Disconnect the K1 and K6 rear speaker assembly connectors.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H9-1 (FR+) or H71-4 (TWR+) - Body ground Always 10 kΩ or higher
      H9-6 (FR-) or H71-2 (TWR-) - Body ground Always 10 kΩ or higher
      H9-2 (FL+) or H73-4 (TWL+) - Body ground Always 10 kΩ or higher
      H9-7 (FL-) or H73-2 (TWL-) - Body ground Always 10 kΩ or higher
      H9-4 (RR+) or K1-1 - Body ground Always 10 kΩ or higher
      H9-9 (RR-) or K1-2 - Body ground Always 10 kΩ or higher
      H9-3 (RL+) or K6-1 - Body ground Always 10 kΩ or higher
      H9-8 (RL-) or K6-2 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY OR FRONT NO. 2 SPEAKER ASSEMBLY - BODY GROUND) 
    1. Disconnect the J1 and J17 front No. 1 speaker assembly connectors.
    2. Disconnect the H71 and H73 front No. 2 speaker assembly connectors.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J1-2 or H71-3 (+) - Body ground Always 10 kΩ or higher
      J1-1 or H71-1 (-) - Body ground Always 10 kΩ or higher
      J17-2 or H73-3 (+) - Body ground Always 10 kΩ or higher
      J17-1 or H73-1 (-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  8

  8. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY 
    1. Remove the front No. 1 speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the front No. 1 speaker assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  9

  9. INSPECT REAR SPEAKER ASSEMBLY 
    1. Remove the rear speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the rear speaker assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  10

  10. REPLACE FRONT NO. 2 SPEAKER ASSEMBLY 
    1. Remove the front No. 2 speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the front No. 2 speaker assembly.

      Refer to INSPECTION [12/2019 - ]

    3. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

    4. Recheck for DTCs and check that no DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

  11. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY OR SPEAKERS - BODY GROUND) 
    1. Disconnect the M37 stereo component amplifier assembly connector.
    2. Disconnect the H13 and H14 front No. 3 speaker assembly connectors.
    3. Disconnect the H72 and H74 front No. 2 speaker assembly connectors.
    4. Disconnect the K1 and K6 rear speaker assembly connectors.
    5. Disconnect the M36 rear No. 2 speaker assembly connector.
    6. Disconnect the W22 and W23 rear No. 3 speaker assembly connectors.
    7. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M37-15 (FR+) or H13-4 (+) - Body ground Always 10 kΩ or higher
      M37-30 (FR-) or H13-2 (-) - Body ground Always 10 kΩ or higher
      M37-11 (FL+) or H14-4 (+) - Body ground Always 10 kΩ or higher
      M37-26 (FL-) or H14-2 (-) - Body ground Always 10 kΩ or higher
      M37-14 (TWR+) or H72-2 (TWR+) - Body ground Always 10 kΩ or higher
      M37-29 (TWR-) or H72-1 (TWR-) - Body ground Always 10 kΩ or higher
      M37-13 (TWL+) or H74-2 (TWL+) - Body ground Always 10 kΩ or higher
      M37-28 (TWL-) or H74-1 (TWL-) - Body ground Always 10 kΩ or higher
      M37-12 (RR+) or K1-1 - Body ground Always 10 kΩ or higher
      M37-27 (RR-) or K1-2 - Body ground Always 10 kΩ or higher
      M37-4 (RL+) or K6-1 - Body ground Always 10 kΩ or higher
      M37-19 (RL-) or K6-2 - Body ground Always 10 kΩ or higher
      M37-8 (WF1+) or M36-4 (WF1+) - Body ground Always 10 kΩ or higher
      M37-23 (WF1-) or M36-3 (WF1-) - Body ground Always 10 kΩ or higher
      M37-7 (WF2+) or M36-2 (WF2+) - Body ground Always 10 kΩ or higher
      M37-22 (WF2-) or M36-1 (WF2-) - Body ground Always 10 kΩ or higher
      M37-9 (SR+) or W22-2 - Body ground Always 10 kΩ or higher
      M37-24 (SR-) or W22-1 - Body ground Always 10 kΩ or higher
      M37-5 (SL+) or W23-2 - Body ground Always 10 kΩ or higher
      M37-20 (SL-) or W23-1 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY OR FRONT NO. 3 SPEAKER ASSEMBLY - BODY GROUND) 
    1. Disconnect the J1 and J17 front No. 1 speaker assembly connectors.
    2. Disconnect the H13 and H14 front No. 3 speaker assembly connectors.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J1-2 or H13-3 (+) - Body ground Always 10 kΩ or higher
      J1-1 or H13-1 (-) - Body ground Always 10 kΩ or higher
      J17-2 or H14-3 (+) - Body ground Always 10 kΩ or higher
      J17-1 or H14-1 (-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  13

  13. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY 
    1. Remove the front No. 1 speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the front No. 1 speaker assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  14

  14. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY 
    1. Remove the front No. 2 speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the front No. 2 speaker assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  15

  15. INSPECT REAR SPEAKER ASSEMBLY 
    1. Remove the rear speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the rear speaker assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  16

  16. INSPECT REAR NO. 2 SPEAKER ASSEMBLY 
    1. Remove the rear No. 2 speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the rear No. 2 speaker assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  17

  17. INSPECT REAR NO. 3 SPEAKER ASSEMBLY 
    1. Remove the rear No. 3 speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the rear No. 3 speaker assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR NO. 3 SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  18

  18. REPLACE FRONT NO. 3 SPEAKER ASSEMBLY 
    1. Remove the front No. 3 speaker assembly.

      Refer to REMOVAL [12/2019 - ]

    2. Inspect the front No. 3 speaker assembly.

      Refer to INSPECTION [12/2019 - ]

    3. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

    4. Recheck for DTCs and check that no DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

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