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AUDIO AND VISUAL SYSTEM, Diagnostic DTC:B15C3

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DTC Code DTC Name
B15C3 Speaker Output Short
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DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
B15C3 A short is detected in the speaker output circuit.

  • Stereo component amplifier assembly

  • DCM (telematics transceiver)*

  • Speakers

  • Harness or connector

A01H1XCE05
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WIRING DIAGRAM

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INSPECTION PROCEDURE

Tip:

After the inspection is completed, clear the DTCs.

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PROCEDURE


  1. Click here

    CLEAR DTC


    1. Clear the DTC (Click here).


  2. Click here

    CHECK FOR DTC


    1. Recheck for DTCs and check if the same DTC is output again (Click here).

      OK
      No DTC is output.

  3. Click here

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - SPEAKERS AND DCM [TELEMATICS TRANSCEIVER])


    • *1: for RH Side

    • *2: for LH Side

    • *3: w/ Telematics Transceiver

    • *4: w/o Telematics Transceiver


    1. Disconnect the R96 and R95 stereo component amplifier assembly connectors.

    2. Disconnect the N4*1 and/or N12*2 front No. 1 speaker assembly connector.

    3. Disconnect the L84*1 and/or L9*2 front No. 2 speaker assembly connector.

    4. Disconnect the M1 front No. 3 speaker assembly connector.

    5. Disconnect the O1*1 and/or O12*2 rear No. 2 speaker assembly connector.

    6. Disconnect the Q3*1 and/or Q8*2 rear No. 3 speaker assembly connector.

    7. Disconnect the R20 floor stereo component speaker assembly connector.

    8. Disconnect the R18*1 and/or S18*2 rear header speaker assembly connector.

    9. Disconnect the L191 DCM (telematics transceiver) connector.*3

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R95-2 (TMUT) - L191-17 (MUTE)*3 Always Below 1 Ω
      R95-5 (WFR+) - N4-1 Always Below 1 Ω
      R95-20 (WFR-) - N4-2 Always Below 1 Ω
      R95-4 (WFL+) - N12-1 Always Below 1 Ω
      R95-19 (WFL-) - N12-2 Always Below 1 Ω
      R95-13 (FR+) - L191-2 (SPI+)*3 Always Below 1 Ω
      R95-28 (FR-) - L191-3 (SPI-)*3 Always Below 1 Ω
      R95-13 (FR+) - L84-1*4 Always Below 1 Ω
      R95-28 (FR-) - L84-2*4 Always Below 1 Ω
      R95-12 (FL+) - L9-1 Always Below 1 Ω
      R95-27 (FL-) - L9-2 Always Below 1 Ω
      R95-7 (CTR+) - M1-1 Always Below 1 Ω
      R95-22 (CTR-) - M1-2 Always Below 1 Ω
      R96-4 (RR+) - O1-1 Always Below 1 Ω
      R96-10 (RR-) - O1-2 Always Below 1 Ω
      R96-3 (RL+) - O12-1 Always Below 1 Ω
      R96-9 (RL-) - O12-2 Always Below 1 Ω
      R95-15 (TWR+) - Q3-1 (+TW) Always Below 1 Ω
      R95-30 (TWR-) - Q3-2 (-TW) Always Below 1 Ω
      R95-14 (TWL+) - Q8-1 (+TW) Always Below 1 Ω
      R95-29 (TWL-) - Q8-2 (-TW) Always Below 1 Ω
      R95-6 (WF1+) - R20-1 (WF1+) Always Below 1 Ω
      R95-21 (WF1-) - R20-4 (WF1-) Always Below 1 Ω
      R96-2 (SR+) - R18-1 Always Below 1 Ω
      R96-6 (SR-) - R18-2 Always Below 1 Ω
      R96-1 (SL+) - S18-1 Always Below 1 Ω
      R96-5 (SL-) - S18-2 Always Below 1 Ω
      R95-2 (TMUT) or L191-17 (MUTE) - Body ground*3 Always 10 kΩ or higher
      R95-5 (WFR+) or N4-1 - Body ground Always 10 kΩ or higher
      R95-20 (WFR-) or N4-2 - Body ground Always 10 kΩ or higher
      R95-4 (WFL+) or N12-1 - Body ground Always 10 kΩ or higher
      R95-19 (WFL-) or N12-2 - Body ground Always 10 kΩ or higher
      R95-13 (FR+) or L191-2 (SPI+) - Body ground*3 Always 10 kΩ or higher
      R95-28 (FR-) or L191-3 (SPI-) - Body ground*3 Always 10 kΩ or higher
      R95-13 (FR+) or L84-1 - Body ground*4 Always 10 kΩ or higher
      R95-28 (FR-) or L84-2 - Body ground*4 Always 10 kΩ or higher
      R95-12 (FL+) or L9-1 - Body ground Always 10 kΩ or higher
      R95-27 (FL-) or L9-2 - Body ground Always 10 kΩ or higher
      R95-7 (CTR+) or M1-1 - Body ground Always 10 kΩ or higher
      R95-22 (CTR-) or M1-2 - Body ground Always 10 kΩ or higher
      R96-4 (RR+) or O1-1 - Body ground Always 10 kΩ or higher
      R96-10 (RR-) or O1-2 - Body ground Always 10 kΩ or higher
      R96-3 (RL+) or O12-1- Body ground Always 10 kΩ or higher
      R96-9 (RL-) or O12-2 - Body ground Always 10 kΩ or higher
      R95-15 (TWR+) or Q3-1 (+TW) - Body ground Always 10 kΩ or higher
      R95-30 (TWR-) or Q3-2 (-TW) - Body ground Always 10 kΩ or higher
      R95-14 (TWL+) or Q8-1 (+TW) - Body ground Always 10 kΩ or higher
      R95-29 (TWL-) or Q8-2 (-TW) - Body ground Always 10 kΩ or higher
      R95-6 (WF1+) or R20-1 (WF1+) - Body ground Always 10 kΩ or higher
      R95-21 (WF1-) or R20-4 (WF1-) - Body ground Always 10 kΩ or higher
      R96-2 (SR+) or R18-1 - Body ground Always 10 kΩ or higher
      R96-6 (SR-) or R18-2 - Body ground Always 10 kΩ or higher
      R96-1 (SL+) or S18-1 - Body ground Always 10 kΩ or higher
      R96-5 (SL-) or S18-2 - Body ground Always 10 kΩ or higher
      Table 1. Result
      Result Proceed to
      OK (w/ Telematics Transceiver) A
      OK (w/o Telematics Transceiver) B
      NG C

  4. Click here

    CHECK HARNESS AND CONNECTOR (DCM [TELEMATICS TRANSCEIVER] - FRONT NO. 2 SPEAKER RH)


    1. Disconnect the L191 DCM (telematics transceiver) connector.

    2. Disconnect the L84 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
      L191-5 (SPO+) - L84-1 Always Below 1 Ω
      L191-6 (SPO-) - L84-2 Always Below 1 Ω
      L191-5 (SPO+) or L84-1 - Body ground Always 10 kΩ or higher
      L191-6 (SPO-) or L84-2 - Body ground Always 10 kΩ or higher

  5. Click here

    INSPECT DCM (TELEMATICS TRANSCEIVER)


    1. A01H078E27

      Remove the DCM (telematics transceiver) (Click here).

    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+) or 5 (SPO+) - Body ground Always 10 kΩ or higher
      3 (SPI-) or 6 (SPO-) - Body ground Always 10 kΩ or higher

  6. Click here

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly (Click here).

    2. Inspect the front No. 2 speaker assembly (Click here).


  7. Click here

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly (Click here).

    2. Inspect the front No. 1 speaker assembly (Click here).


  8. Click here

    INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly (Click here).

    2. Inspect the front No. 3 speaker assembly (Click here).


  9. Click here

    INSPECT FLOOR STEREO COMPONENT SPEAKER ASSEMBLY


    1. Remove the floor stereo component speaker assembly (Click here).

    2. Inspect the floor stereo component speaker assembly (Click here).


  10. Click here

    INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly.


    2. Inspect the rear No. 2 speaker assembly.


      Table 2. Result
      Result Proceed to
      OK A
      NG (for Standard Body) B
      NG (for Long Body) C

  11. Click here

    INSPECT REAR NO. 1 SPEAKER ASSEMBLY


    1. Remove the rear No. 1 speaker assembly.


    2. Inspect the rear No. 1 speaker assembly.


      Table 3. Result
      Result Proceed to
      OK A
      NG (for Standard Body) B
      NG (for Long Body) C

  12. Click here

    CHECK HARNESS AND CONNECTOR (REAR NO. 3 SPEAKER ASSEMBLY - REAR NO. 1 SPEAKER ASSEMBLY)


    • *1: for LH Side

    • *2: for RH Side


    1. Disconnect the Q8*1 or Q3*2 rear No. 3 speaker assembly connector.

    2. Disconnect the O21*1 or O10*2 rear No. 1 speaker assembly connector.

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

      Standard Resistance
      Table 4. for LH Side
      Tester Connection Condition Specified Condition
      Q8-3 (RLD+) - O21-1 Always Below 1 Ω
      Q8-4 (RLD-) - O21-2 Always Below 1 Ω
      Q8-3 (RLD+) or O21-1 - Body ground Always 10 kΩ or higher
      Q8-4 (RLD-) or O21-2 - Body ground Always 10 kΩ or higher
      Table 5. for RH Side
      Tester Connection Condition Specified Condition
      Q3-3 (RRD+) - O10-1 Always Below 1 Ω
      Q3-4 (RRD-) - O10-2 Always Below 1 Ω
      Q3-3 (RRD+) or O10-1 - Body ground Always 10 kΩ or higher
      Q3-4 (RRD-) or O10-2 - Body ground Always 10 kΩ or higher

  13. Click here

    CHECK REAR NO. 3 SPEAKER ASSEMBLY


    1. Replace the rear No. 3 speaker assembly LH and/or RH with a new or known good one.



  14. Click here

    CLEAR DTC


    1. Clear the DTCs (Click here).


  15. Click here

    CHECK FOR DTC


    1. Recheck for DTCs and check if the same DTC is output again (Click here).

      OK
      No DTCs are output.

  16. Click here

    INSPECT REAR HEADER SPEAKER ASSEMBLY


    1. Remove the rear header speaker assembly (Click here).

    2. Inspect the rear header speaker assembly (Click here).


  17. Click here

    USE SIMULATION METHOD TO CHECKClick here

  18. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  19. Click here

    REPLACE DCM (TELEMATICS TRANSCEIVER)Click here

  20. Click here

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLYClick here

  21. Click here

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLYClick here

  22. Click here

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLYClick here

  23. Click here

    REPLACE FLOOR STEREO COMPONENT SPEAKER ASSEMBLYClick here

  24. Click here

    REPLACE REAR NO. 1 SPEAKER ASSEMBLYClick here

  25. Click here

    REPLACE REAR NO. 2 SPEAKER ASSEMBLYClick here

  26. Click here

    END (REAR NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

  27. Click here

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLYClick here

  28. Click here

    REPLACE REAR HEADER SPEAKER ASSEMBLYClick here

  29. Click here

    REPLACE REAR NO. 2 SPEAKER ASSEMBLYClick here

  30. Click here

    REPLACE REAR NO. 1 SPEAKER ASSEMBLYClick here