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DTC B15C3: Speaker Output Short [11/2018 - 10/2019]: Procedure

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

      Result

      Result Proceed to
      for 6 Speakers A
      for 9 Speakers 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/ Manual (SOS) Switch A
      w/o Manual (SOS) Switch 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 G4 radio and display receiver assembly connector.
    2. Disconnect the G9 DCM (telematics transceiver) connector.
    3. Disconnect the G6 front No. 2 speaker assembly LH connector.
    4. Disconnect the K1 and L1 rear speaker assembly connectors.
    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G4-1 (FR+) or G9-2 (SPI+) - Body ground Always 10 kΩ or higher
      G4-6 (FR-) or G9-3 (SPI-) - Body ground Always 10 kΩ or higher
      G4-2 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher
      G4-7 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher
      G4-4 (RR+) or K1-2 (+) - Body ground Always 10 kΩ or higher
      G4-9 (RR-) or K1-1 (-) - Body ground Always 10 kΩ or higher
      G4-3 (RL+) or L1-2 (+) - Body ground Always 10 kΩ or higher
      G4-8 (RL-) or L1-1 (-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (DCM [TELEMATICS TRANSCEIVER] OR SPEAKER - BODY GROUND) 
    1. Disconnect the G9 DCM (telematics transceiver) connector.
    2. Disconnect the G5 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
      G9-5 (SPO+) or G5-4 (TWR+) - Body ground Always 10 kΩ or higher
      G9-6 (SPO-) or G5-2 (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 [11/2018 - 10/2019]

    2. Measure the resistance according to the value(s) in the table below.
      GTY450683Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (DCM [Telematics Transceiver])

      Standard Resistance

      Tester Connection Condition Specified Condition
      2 (SPI+) - 5 (SPO+) Always Below 1 Ω
      3 (SPI-) - 6 (SPO-) Always Below 1 Ω
      2 (SPI+) - 3 (SPI-) Always 10 kΩ or higher
      5 (SPO+) - 6 (SPO-) Always 10 kΩ or higher
      2 (SPI+) or 5 (SPO+) - Body ground Always 10 kΩ or higher
      3 (SPI-) or 6 (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 [11/2018 - 10/2019] 

  6. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY OR SPEAKERS - BODY GROUND) 
    1. Disconnect the G4 radio and display receiver assembly connector.
    2. Disconnect the G5 and G6 front No. 2 speaker assembly connector.
    3. Disconnect the K1 and L1 rear speaker assembly connectors.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G4-1 (FR+) or G5-4 (TWR+) - Body ground Always 10 kΩ or higher
      G4-6 (FR-) or G5-2 (TWR-) - Body ground Always 10 kΩ or higher
      G4-2 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher
      G4-7 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher
      G4-4 (RR+) or K1-2 (+) - Body ground Always 10 kΩ or higher
      G4-9 (RR-) or K1-1 (-) - Body ground Always 10 kΩ or higher
      G4-3 (RL+) or L1-2 (+) - Body ground Always 10 kΩ or higher
      G4-8 (RL-) or L1-1 (-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY OR FRONT NO. 2 SPEAKER ASSEMBLY - BODY GROUND) 
    1. Disconnect the I1 and J1 front No. 1 speaker assembly connectors.
    2. Disconnect the G5 and G6 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
      I1-2 (+) or G5-3 (+) - Body ground Always 10 kΩ or higher
      I1-1 (-) or G5-1 (-) - Body ground Always 10 kΩ or higher
      J1-2 (+) or G6-3 (+) - Body ground Always 10 kΩ or higher
      J1-1 (-) or G6-1 (-) - 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 [11/2018 - ]

    2. Inspect the front No. 1 speaker assembly.

      Refer to INSPECTION [11/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    OK 

    See step  9

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

      Refer to REMOVAL [11/2018 - ]

    2. Inspect the rear speaker assembly.

      Refer to INSPECTION [11/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR SPEAKER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    OK 

    See step  10

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

      Refer to REMOVAL [11/2018 - ]

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - 10/2019]

      Body Electrical > Navigation System > Clear DTCs 

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

      Refer to DTC CHECK / CLEAR [11/2018 - 10/2019]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2018 - 10/2022] 

  11. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY, DCM [TELEMATICS TRANSCEIVER] OR SPEAKERS - BODY GROUND) 
    1. Disconnect the M2 stereo component amplifier assembly connector.
    2. Disconnect the G9 DCM (telematics transceiver) connector.
    3. Disconnect the G8 front No. 2 speaker assembly LH connector.
    4. Disconnect the G6 and G5 front No. 3 speaker assembly connectors.
    5. Disconnect the K1 and L1 rear speaker assembly connectors.
    6. Disconnect the N1 rear No. 2 speaker assembly connector.
    7. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M2-9 (FR+) or G5-4 (TWR+) - Body ground Always 10 kΩ or higher
      M2-24 (FR-) or G5-2 (TWR-) - Body ground Always 10 kΩ or higher
      M2-14 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher
      M2-29 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher
      M2-13 (TWR+) or G9-2 (SPI+) - Body ground Always 10 kΩ or higher
      M2-28 (TWR-) or G9-3 (SPI-) - Body ground Always 10 kΩ or higher
      M2-10 (TWL+) or G8-1 (+) - Body ground Always 10 kΩ or higher
      M2-25 (TWL-) or G8-2 (-) - Body ground Always 10 kΩ or higher
      M2-12 (RR+) or K1-2 (+) - Body ground Always 10 kΩ or higher
      M2-27 (RR-) or K1-1 (-) - Body ground Always 10 kΩ or higher
      M2-11 (RL+) or L1-2 (+) - Body ground Always 10 kΩ or higher
      M2-26 (RL-) or L1-1 (-) - Body ground Always 10 kΩ or higher
      M2-15 (WFR+) or N1-4 (WF+) - Body ground Always 10 kΩ or higher
      M2-30 (WFR-) or N1-1 (WF-) - Body ground Always 10 kΩ or higher
      M2-8 (WFL+) or N1-2 (WF+) - Body ground Always 10 kΩ or higher
      M2-23 (WFL-) or N1-3 (WF-) - 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 (DCM [TELEMATICS TRANSCEIVER] OR SPEAKER - BODY GROUND) 
    1. Disconnect the G9 DCM (telematics transceiver) connector.
    2. Disconnect the G7 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
      G9-5 (SPO+) or G7-1 (+) - Body ground Always 10 kΩ or higher
      G9-6 (SPO-) or G7-2 (-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  13

  13. INSPECT DCM (TELEMATICS TRANSCEIVER) 
    1. Remove the DCM (telematics transceiver).
      GTY450683Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (DCM [Telematics Transceiver])

      Refer to REMOVAL [11/2018 - 10/2019]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      2 (SPI+) - 5 (SPO+) Always Below 1 Ω
      3 (SPI-) - 6 (SPO-) Always Below 1 Ω
      2 (SPI+) - 3 (SPI-) Always 10 kΩ or higher
      5 (SPO+) - 6 (SPO-) Always 10 kΩ or higher
      2 (SPI+) or 5 (SPO+) - Body ground Always 10 kΩ or higher
      3 (SPI-) or 6 (SPO-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to  REMOVAL [11/2018 - 10/2019] 

    Result: 

    OK 

    See step  14

  14. CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY OR FRONT NO. 3 SPEAKER ASSEMBLY - BODY GROUND) 
    1. Disconnect the I1 and J1 front No. 1 speaker assembly connectors.
    2. Disconnect the G5 and G6 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
      I1-2 (+) or G5-3 (+) - Body ground Always 10 kΩ or higher
      I1-1 (-) or G5-1 (-) - Body ground Always 10 kΩ or higher
      J1-2 (+) or G6-3 (+) - Body ground Always 10 kΩ or higher
      J1-1 (-) or G6-1 (-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  15

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

      Refer to REMOVAL [11/2018 - ]

    2. Inspect the front No. 1 speaker assembly.

      Refer to INSPECTION [11/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    OK 

    See step  16

  16. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY 
    1. Remove the front No. 3 speaker assembly.

      Refer to REMOVAL [11/2018 - ]

    2. Inspect the front No. 3 speaker assembly.

      Refer to INSPECTION [11/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    OK 

    See step  17

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

      Refer to REMOVAL [11/2018 - ]

    2. Inspect the front No. 2 speaker assembly.

      Refer to INSPECTION [11/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    OK 

    See step  18

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

      Refer to REMOVAL [11/2018 - ]

    2. Inspect the rear speaker assembly.

      Refer to INSPECTION [11/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR SPEAKER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    OK 

    See step  19

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

      Refer to REMOVAL [11/2018 - ]

    2. Inspect the rear No. 2 speaker assembly.

      Refer to INSPECTION [11/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to  REMOVAL [11/2018 - 10/2022] 

    Result: 

    NG 

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

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