AUDIO AND VISUAL SYSTEM Speaker Circuit

DESCRIPTION

If there is a short in a speaker circuit, the stereo component amplifier assembly detects it 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.

*: w/ Telematics Transceiver

WIRING DIAGRAM

A001D7LE01
A001CBXE17
A001EQ5E10

CAUTION / NOTICE / HINT

Note

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

Click here

PROCEDURE


  1. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Model
      Model Proceed to
      for 10 Speakers A
      for 19 Speakers B

    B

    CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for RH Side

    • *2: for LH Side

    • *3: w/ Telematics Transceiver


    1. Disconnect the R85 stereo component amplifier assembly connector.

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

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

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

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

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

    7. Disconnect the L181 DCM (telematics transceiver) connector.*3

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

      Standard Resistance
      for RH Side (w/ Telematics Transceiver)
      Tester Connection Condition Specified Condition
      R85-5 (WFR+) - N4-1 Always Below 1 Ω
      R85-20 (WFR-) - N4-2 Always Below 1 Ω
      R85-13 (FR+) - L181-2 (SPI+) Always Below 1 Ω
      R85-28 (FR-) - L181-3 (SPI-) Always Below 1 Ω
      R85-2 (TMUT) - L181-17 (MUTE) Always Below 1 Ω
      L181-5 (SPO+) - L9-1 Always Below 1 Ω
      L181-6 (SPO-) - L9-2 Always Below 1 Ω
      R85-15 (TWR+) - O10-1 Always Below 1 Ω
      R85-30 (TWR-) - O10-2 Always Below 1 Ω
      R85-5 (WFR+) - Body ground Always 10 kΩ or higher
      R85-20 (WFR-) - Body ground Always 10 kΩ or higher
      R85-13 (FR+) - Body ground Always 10 kΩ or higher
      R85-28 (FR-) - Body ground Always 10 kΩ or higher
      R85-2 (TMUT) - Body ground Always 10 kΩ or higher
      L181-5 (SPO+) - Body ground Always 10 kΩ or higher
      L181-6 (SPO-) - Body ground Always 10 kΩ or higher
      R85-15 (TWR+) - Body ground Always 10 kΩ or higher
      R85-30 (TWR-) - Body ground Always 10 kΩ or higher
      for RH Side (w/o Telematics Transceiver):
      Tester Connection Condition Specified Condition
      R85-5 (WFR+) - N4-1 Always Below 1 Ω
      R85-20 (WFR-) - N4-2 Always Below 1 Ω
      R85-13 (FR+) - L9-1 Always Below 1 Ω
      R85-28 (FR-) - L9-2 Always Below 1 Ω
      R85-15 (TWR+) - O10-1 Always Below 1 Ω
      R85-30 (TWR-) - O10-2 Always Below 1 Ω
      R85-5 (WFR+) - Body ground Always 10 kΩ or higher
      R85-20 (WFR-) - Body ground Always 10 kΩ or higher
      R85-13 (FR+) - Body ground Always 10 kΩ or higher
      R85-28 (FR-) - Body ground Always 10 kΩ or higher
      R85-15 (TWR+) - Body ground Always 10 kΩ or higher
      R85-30 (TWR-) - Body ground Always 10 kΩ or higher
      for LH Side:
      Tester Connection Condition Specified Condition
      R85-4 (WFL+) - N12-1 Always Below 1 Ω
      R85-19 (WFL-) - N12-2 Always Below 1 Ω
      R85-12 (FL+) - L84-1 Always Below 1 Ω
      R85-27 (FL-) - L84-2 Always Below 1 Ω
      R85-14 (TWL+) - O21-1 Always Below 1 Ω
      R85-29 (TWL-) - O21-2 Always Below 1 Ω
      R85-4 (WFL+) - Body ground Always 10 kΩ or higher
      R85-19 (WFL-) - Body ground Always 10 kΩ or higher
      R85-12 (FL+) - Body ground Always 10 kΩ or higher
      R85-27 (FL-) - Body ground Always 10 kΩ or higher
      R85-14 (TWL+) - Body ground Always 10 kΩ or higher
      R85-29 (TWL-) - Body ground Always 10 kΩ or higher
      for Center Side:
      Tester Connection Condition Specified Condition
      R85-7 (CTR+) - M1-1 Always Below 1 Ω
      R85-22 (CTR-) - M1-2 Always Below 1 Ω
      R85-6 (WF1+) - R20-1 (WF1+) Always Below 1 Ω
      R85-21 (WF1-) - R20-4 (WF1-) Always Below 1 Ω
      R85-7 (CTR+) - Body ground Always 10 kΩ or higher
      R85-22 (CTR-) - Body ground Always 10 kΩ or higher
      R85-6 (WF1+) - Body ground Always 10 kΩ or higher
      R85-21 (WF1-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  4. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  5. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT REAR NO. 1 SPEAKER ASSEMBLY


    1. Remove the rear No. 1 speaker assembly.

      for Standard Body: Click here

      for Long Body: Click here

    2. Inspect the rear No. 1 speaker assembly.

      for Standard Body: Click here

      for Long Body: Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR NO. 1 SPEAKER ASSEMBLY for Standard Body: Click here
    REPLACE REAR NO. 1 SPEAKER ASSEMBLY for Long Body: Click here

    OK

  7. 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

      Result
      Result Proceed to
      OK (w/ Telematics Transceiver) A
      OK (w/o Telematics Transceiver) B
      NG C

    B

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    C

    REPLACE FLOOR STEREO COMPONENT SPEAKER ASSEMBLY Click here

    A

  8. CHECK DCM (TELEMATICS TRANSCEIVER)


    1. Replace the DCM (telematics transceiver) with a new one.

      Click here

    2. Check the malfunction disappears.

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    OK

    END (DCM [TELEMATICS TRANSCEIVER] IS DEFECTIVE)

    NG

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

  9. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for RH Side

    • *2: for LH Side

    • *3: w/ Telematics Transceiver


    1. Disconnect the R85 stereo component amplifier assembly connector.

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

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

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

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

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

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

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

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

    10. Disconnect the L181 DCM (telematics transceiver) connector.*3

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

      Standard Resistance
      for RH Side (w/ Telematics Transceiver)
      Tester Connection Condition Specified Condition
      R85-5 (WFR+) - N4-1 Always Below 1 Ω
      R85-20 (WFR-) - N4-2 Always Below 1 Ω
      R85-13 (FR+) - L181-2 (SPI+) Always Below 1 Ω
      R85-28 (FR-) - L181-3 (SPI-) Always Below 1 Ω
      R85-2 (TMUT) - L181-17 (MUTE) Always Below 1 Ω
      L181-5 (SPO+) - L9-1 Always Below 1 Ω
      L181-6 (SPO-) - L9-2 Always Below 1 Ω
      R86-4 (RR+) - O1-1 Always Below 1 Ω
      R86-10 (RR-) - O1-2 Always Below 1 Ω
      R85-15 (TWR+) - Q3-1 (+TW) Always Below 1 Ω
      R85-30 (TWR-) - Q3-2 (-TW) Always Below 1 Ω
      Q3-3 (RRD+) - O10-1 Always Below 1 Ω
      Q3-4 (RRD-) - O10-2 Always Below 1 Ω
      R86-2 (SR+) - R18-1 Always Below 1 Ω
      R86-6 (SR-) - R18-2 Always Below 1 Ω
      R85-5 (WFR+) - Body ground Always 10 kΩ or higher
      R85-20 (WFR-) - Body ground Always 10 kΩ or higher
      R85-13 (FR+) - Body ground Always 10 kΩ or higher
      R85-28 (FR-) - Body ground Always 10 kΩ or higher
      R85-2 (TMUT) - Body ground Always 10 kΩ or higher
      L181-5 (SPO+) - Body ground Always 10 kΩ or higher
      L181-6 (SPO-) - Body ground Always 10 kΩ or higher
      R86-4 (RR+) - Body ground Always 10 kΩ or higher
      R86-10 (RR-) - Body ground Always 10 kΩ or higher
      R85-15 (TWR+) - Body ground Always 10 kΩ or higher
      R85-30 (TWR-) - Body ground Always 10 kΩ or higher
      Q3-3 (RRD+) - Body ground Always 10 kΩ or higher
      Q3-4 (RRD-) - Body ground Always 10 kΩ or higher
      R86-2 (SR+) - Body ground Always 10 kΩ or higher
      R86-6 (SR-) - Body ground Always 10 kΩ or higher
      for RH Side (w/o Telematics Transceiver):
      Tester Connection Condition Specified Condition
      R85-5 (WFR+) - N4-1 Always Below 1 Ω
      R85-20 (WFR-) - N4-2 Always Below 1 Ω
      R85-13 (FR+) - L9-1 Always Below 1 Ω
      R85-28 (FR-) - L9-2 Always Below 1 Ω
      R86-4 (RR+) - O1-1 Always Below 1 Ω
      R86-10 (RR-) - O1-2 Always Below 1 Ω
      R85-15 (TWR+) - Q3-1 (+TW) Always Below 1 Ω
      R85-30 (TWR-) - Q3-2 (-TW) Always Below 1 Ω
      Q3-3 (RRD+) - O10-1 Always Below 1 Ω
      Q3-4 (RRD-) - O10-2 Always Below 1 Ω
      R86-2 (SR+) - R18-1 Always Below 1 Ω
      R86-6 (SR-) - R18-2 Always Below 1 Ω
      R85-5 (WFR+) - Body ground Always 10 kΩ or higher
      R85-20 (WFR-) - Body ground Always 10 kΩ or higher
      R85-13 (FR+) - Body ground Always 10 kΩ or higher
      R85-28 (FR-) - Body ground Always 10 kΩ or higher
      R86-4 (RR+) - Body ground Always 10 kΩ or higher
      R86-10 (RR-) - Body ground Always 10 kΩ or higher
      R85-15 (TWR+) - Body ground Always 10 kΩ or higher
      R85-30 (TWR-) - Body ground Always 10 kΩ or higher
      Q3-3 (RRD+) - Body ground Always 10 kΩ or higher
      Q3-4 (RRD-) - Body ground Always 10 kΩ or higher
      R86-2 (SR+) - Body ground Always 10 kΩ or higher
      R86-6 (SR-) - Body ground Always 10 kΩ or higher
      for LH Side:
      Tester Connection Condition Specified Condition
      R85-4 (WFL+) - N12-1 Always Below 1 Ω
      R85-19 (WFL-) - N12-2 Always Below 1 Ω
      R85-12 (FL+) - L84-1 Always Below 1 Ω
      R85-27 (FL-) - L84-2 Always Below 1 Ω
      R86-3 (RL+) - O12-1 Always Below 1 Ω
      R86-9 (RL-) - O12-2 Always Below 1 Ω
      R85-14 (TWL+) - Q8-1 (+TW) Always Below 1 Ω
      R85-29 (TWL-) - Q8-2 (-TW) Always Below 1 Ω
      Q8-3 (RLD+) - O21-1 Always Below 1 Ω
      Q8-4 (RLD-) - O21-2 Always Below 1 Ω
      R86-1 (SL+) - S18-1 Always Below 1 Ω
      R86-5 (SL-) - S18-2 Always Below 1 Ω
      R85-4 (WFL+) - Body ground Always 10 kΩ or higher
      R85-19 (WFL-) - Body ground Always 10 kΩ or higher
      R85-12 (FL+) - Body ground Always 10 kΩ or higher
      R85-27 (FL-) - Body ground Always 10 kΩ or higher
      R86-3 (RL+) - Body ground Always 10 kΩ or higher
      R86-9 (RL-) - Body ground Always 10 kΩ or higher
      R85-14 (TWL+) - Body ground Always 10 kΩ or higher
      R85-29 (TWL-) - Body ground Always 10 kΩ or higher
      Q8-3 (RLD+) - Body ground Always 10 kΩ or higher
      Q8-4 (RLD-) - Body ground Always 10 kΩ or higher
      R86-1 (SL+) - Body ground Always 10 kΩ or higher
      R86-5 (SL-) - Body ground Always 10 kΩ or higher
      for Center Side:
      Tester Connection Condition Specified Condition
      R85-7 (CTR+) - M1-1 Always Below 1 Ω
      R85-22 (CTR-) - M1-2 Always Below 1 Ω
      R85-6 (WF1+) - R20-1 (WF1+) Always Below 1 Ω
      R85-21 (WF1-) - R20-4 (WF1-) Always Below 1 Ω
      R85-7 (CTR+) - Body ground Always 10 kΩ or higher
      R85-22 (CTR-) - Body ground Always 10 kΩ or higher
      R85-6 (WF1+) - Body ground Always 10 kΩ or higher
      R85-21 (WF1-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  11. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  12. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  13. INSPECT REAR NO. 1 SPEAKER ASSEMBLY


    1. Remove the rear No. 1 speaker assembly.

      for Standard Body: Click here

      for Long Body: Click here

    2. Inspect the rear No. 1 speaker assembly.

      for Standard Body: Click here

      for Long Body: Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR NO. 1 SPEAKER ASSEMBLY for Standard Body: Click here
    REPLACE REAR NO. 1 SPEAKER ASSEMBLY for Long Body: Click here

    OK

  14. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly.

      for Standard Body: Click here

      for Long Body: Click here

    2. Inspect the rear No. 2 speaker assembly.

      for Standard Body: Click here

      for Long Body: Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY for Standard Body: Click here
    REPLACE REAR NO. 2 SPEAKER ASSEMBLY for Long Body: Click here

    OK

  15. INSPECT REAR HEADER SPEAKER ASSEMBLY


    1. Remove the rear header speaker assembly.

      Click here

    2. Inspect the rear header speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR HEADER SPEAKER ASSEMBLY Click here

    OK

  16. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FLOOR STEREO COMPONENT SPEAKER ASSEMBLY Click here

    OK

  17. CHECK REAR NO. 3 SPEAKER ASSEMBLY


    1. Replace the rear No. 3 speaker assembly with a known good one.

      for Standard Body: Click here

      for Long Body: Click here

    2. Check the malfunction disappears.

      OK
      Malfunction disappears.
      Result
      Result Proceed to
      OK A
      NG (w/ Telematics Transceiver) B
      NG (w/o Telematics Transceiver) C

    A

    END (REAR NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

    C

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    B

  18. CHECK DCM (TELEMATICS TRANSCEIVER)


    1. Replace the DCM (telematics transceiver) with a new one.

      Click here

    2. Check the malfunction disappears.

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    OK

    END (DCM [TELEMATICS TRANSCEIVER] IS DEFECTIVE)

    NG

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here