AUDIO AND VISUAL SYSTEM Speaker Circuit

DESCRIPTION

If there is a short in a speaker circuit, the stereo component amplifier assembly detects the short and stops output to the speakers.

Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)* or speakers.

WIRING DIAGRAM

A01FVNHE10
A01FUVSE03

INSPECTION PROCEDURE

PROCEDURE


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


    • *1: for RH Side

    • *2: for LH Side

    • *3: for 17 Speakers

    • *4: w/ Emergency Call Switch

    • *5: w/o Emergency Call Switch


    1. Disconnect the T40 stereo component amplifier assembly connector.

    2. Disconnect the Q1*1 and/or Q16*2 front No. 1 speaker assembly connector.

    3. Disconnect the N89*1 and/or N21*2 front No. 2 speaker assembly connector.

    4. Disconnect the N61 front No. 3 speaker assembly connector.

    5. Disconnect the R4*1 and/or R12*2 rear No. 2 speaker assembly connector.

    6. Disconnect the T24 rear No. 3 speaker assembly connector.

    7. Disconnect the T25*1 and/or U26*2 rear header speaker assembly connector*3 .

    8. Disconnect the N169 DCM (telematics transceiver) connector*4.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T40-5 (WFR+) - Q1-1 Always Below 1 Ω
      T40-20 (WFR-) - Q1-2 Always Below 1 Ω
      T40-4 (WFL+) - Q16-1 Always Below 1 Ω
      T40-19 (WFL-) - Q16-2 Always Below 1 Ω
      T40-13 (FR+) - N169-2 (SPI+)*4 Always Below 1 Ω
      T40-28 (FR-) - N169-3 (SPI-)*4 Always Below 1 Ω
      T40-13 (FR+) - N89-2 (+)*5 Always Below 1 Ω
      T40-28 (FR-) - N89-1 (-)*5 Always Below 1 Ω
      T40-12 (FL+) - N21-2 (+) Always Below 1 Ω
      T40-27 (FL-) - N21-1 (-) Always Below 1 Ω
      T40-7 (CTR+) - N61-2 (+) Always Below 1 Ω
      T40-22 (CTR-) - N61-1 (-) Always Below 1 Ω
      T40-15 (RR+) - R4-3 (+TW) Always Below 1 Ω
      T40-30 (RR-) - R4-1 (-TW) Always Below 1 Ω
      T40-14 (RL+) - R12-3 (+TW) Always Below 1 Ω
      T40-29 (RL-) - R12-1 (-TW) Always Below 1 Ω
      T40-6 (WF1+) - T24-1 Always Below 1 Ω
      T40-21 (WF1-) - T24-2 Always Below 1 Ω
      T40-11 (SR+) - T25-2 (+)*3 Always Below 1 Ω
      T40-26 (SR-) - T25-1 (-)*3 Always Below 1 Ω
      T40-10 (SL+) - U26-2 (+)*3 Always Below 1 Ω
      T40-25 (SL-) - U26-1 (-)*3 Always Below 1 Ω
      T40-5 (WFR+) - Body ground Always 10 kΩ or higher
      T40-20 (WFR-) - Body ground Always 10 kΩ or higher
      T40-4 (WFL+) - Body ground Always 10 kΩ or higher
      T40-19 (WFL-) - Body ground Always 10 kΩ or higher
      T40-13 (FR+) - Body ground Always 10 kΩ or higher
      T40-28 (FR-) - Body ground Always 10 kΩ or higher
      T40-12 (FL+) - Body ground Always 10 kΩ or higher
      T40-27 (FL-) - Body ground Always 10 kΩ or higher
      T40-7 (CTR+) - Body ground Always 10 kΩ or higher
      T40-22 (CTR-) - Body ground Always 10 kΩ or higher
      T40-15 (RR+) - Body ground Always 10 kΩ or higher
      T40-30 (RR-) - Body ground Always 10 kΩ or higher
      T40-14 (RL+) - Body ground Always 10 kΩ or higher
      T40-29 (RL-) - Body ground Always 10 kΩ or higher
      T40-6 (WF1+) - Body ground Always 10 kΩ or higher
      T40-21 (WF1-) - Body ground Always 10 kΩ or higher
      T40-11 (SR+) - Body ground*3 Always 10 kΩ or higher
      T40-26 (SR-) - Body ground*3 Always 10 kΩ or higher
      T40-10 (SL+) - Body ground*3 Always 10 kΩ or higher
      T40-25 (SL-) - Body ground*3 Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. 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.


    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


    1. Temporarily replace the front No. 2 speaker assembly with a new or normally functioning one Click here.

    2. Check for DTCs and check if the same DTCs is output Click here.

      OK
      No DTCs are output.
      Result
      Result Proceed to
      OK A
      NG (w/ Emergency Call Switch) B
      NG (for 17 Speakers [w/o Emergency Call Switch]) C
      NG (for 12 Speakers [w/o Emergency Call Switch]) D

    B

    Click here

    C

    Click here

    D

    Click here

    A

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

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


    1. Disconnect the N169 DCM (telematics transceiver) connector.

    2. Disconnect the N89 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
      N169-5 (SPO+) - N89-2 (+) Always Below 1 Ω
      N169-6 (SPO-) - N89-1 (-) Always Below 1 Ω
      N169-5 (SPO+) - Body ground Always 10 kΩ or higher
      N169-6 (SPO-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT DCM (TELEMATICS TRANSCEIVER)


    1. A01FVHVE27

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

    NG

    REPLACE DCM (TELEMATICS TRANSCEIVER) Click here

    OK

  6. CHECK FRONT NO. 3 SPEAKER ASSEMBLY


    1. Temporarily replace the front No. 3 speaker assembly with a new or normally functioning one Click here.

    2. Check for DTCs and check if the same DTCs is output Click here.

      OK
      No DTCs are output.

    NG

    Click here

    OK

    END (FRONT NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

  7. 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.


    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (REAR NO. 2 SPEAKER ASSEMBLY - REAR SPEAKER ASSEMBLY)


    • *1: for RH Side

    • *2: for LH Side


    1. Disconnect the R4*1 and/or R12*2 rear No. 2 speaker assembly connector.

    2. Disconnect the R5*1 and/or R13*2 rear speaker assembly connector.

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

      Standard Resistance
      for RH Side
      Tester Connection Condition Specified Condition
      R4-4 (+) - R5-1 Always Below 1 Ω
      R4-2 (-) - R5-2 Always Below 1 Ω
      R4-4 (+) - Body ground Always 10 kΩ or higher
      R4-2 (-) - Body ground Always 10 kΩ or higher
      for LH Side
      Tester Connection Condition Specified Condition
      R12-4 (+) - R13-1 Always Below 1 Ω
      R12-2 (-) - R13-2 Always Below 1 Ω
      R12-4 (+) - Body ground Always 10 kΩ or higher
      R12-2 (-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly Click here.

    2. Inspect the rear speaker assembly Click here.


    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  10. CHECK REAR NO. 2 SPEAKER ASSEMBLY


    1. Temporarily replace the rear No. 2 speaker assembly with a new or normally functioning one Click here.

    2. Check for DTCs and check if the same DTCs is output Click here.

      OK
      No DTCs are output.

    NG

    Click here

    OK

    END (REAR NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

  11. INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. Remove the rear No. 3 speaker assembly Click here.

    2. Inspect the rear No. 3 speaker assembly Click here.

      Result
      Result Proceed to
      OK (for 17 Speakers) A
      OK (for 12 Speakers) B
      NG C

    B

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    C

    REPLACE REAR NO. 3 SPEAKER ASSEMBLY Click here

    A

  12. CHECK REAR HEADER SPEAKER ASSEMBLY


    1. Temporarily replace the rear header speaker assembly with a new or normally functioning one Click here.

    2. Check for DTCs and check if the same DTCs is output Click here.

      OK
      No DTCs are output.

    NG

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    OK

    END (REAR HEADER SPEAKER ASSEMBLY IS DEFECTIVE)