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, telematics transceiver* or speakers.


WIRING DIAGRAM

B001OHWE18
B001O5DE30

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 Audio and Visual System. Click here.

PROCEDURE


  1. CHECK SPEAKER (OPERATION CHECK)


    1. B001OM4

      Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check Click here.

    2. Perform the operation check above and determine the speaker that is not operating.

      Result
      Not Operating Speaker Proceed to

      Front No. 2 speaker assembly

      (w/ Manual (SOS) Switch)

      		 A

      Front No. 2 speaker assembly

      (w/o Manual (SOS) Switch)

      		 B
      Front No. 1 speaker assembly C
      Front No. 3 speaker assembly D
      Other speakers E

      Tech Tips

      If sound cannot be heard from any speaker, inspect all of them.


    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY) Click here

    D

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY) Click here

    E

    CHECK SPEAKER (OPERATION CHECK) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY, FRONT NO. 2 SPEAKER ASSEMBLY, TELEMATICS TRANSCEIVER, BODY GROUND)


    1. Disconnect the H88 stereo component amplifier assembly connector.

    2. Disconnect the H101 telematics transceiver connector.

    3. Disconnect the H63 and H62 front No. 2 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-13 (FR+) - H101-2 (SPI+) Always Below 1 Ω
      H88-28 (FR-) - H101-3 (SPI-) Always Below 1 Ω
      H101-5 (SPO+) - H63-2 Always Below 1 Ω
      H101-6 (SPO-) - H63-1 Always Below 1 Ω
      H88-12 (FL+) - H62-2 Always Below 1 Ω
      H88-27 (FL-) - H62-1 Always Below 1 Ω
      H88-13 (FR+) or H101-2 (SPI+) - Body ground Always 10 kΩ or higher
      H88-28 (FR-) or H101-3 (SPI-) - Body ground Always 10 kΩ or higher
      H88-12 (FL+) or H62-2 - Body ground Always 10 kΩ or higher
      H88-27 (FL-) or H62-1 - Body ground Always 10 kΩ or higher
      H101-5 (SPO+) or H63-2 - Body ground Always 10 kΩ or higher
      H101-6 (SPO-) or H63-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TELEMATICS TRANSCEIVER


    1. Remove the telematics transceiver Click here.

    2. B001NMHC25
      *a

      Component without harness connected

      (Telematics Transceiver)

      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

    NG

    REPLACE TELEMATICS TRANSCEIVER Click here

    OK

  4. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


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

    2. B001NZ6C47
      *a

      Component without harness connected

      (Front No. 2 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the H88 stereo component amplifier assembly connector.

    2. Disconnect the H63 and H62 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
      H88-13 (FR+) - H63-2 Always Below 1 Ω
      H88-28 (FR-) - H63-1 Always Below 1 Ω
      H88-12 (FL+) - H62-2 Always Below 1 Ω
      H88-27 (FL-) - H62-1 Always Below 1 Ω
      H88-13 (FR+) or H63-2 - Body ground Always 10 kΩ or higher
      H88-28 (FR-) or H63-1 - Body ground Always 10 kΩ or higher
      H88-12 (FL+) or H62-2 - Body ground Always 10 kΩ or higher
      H88-27 (FL-) or H62-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


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

    2. B001NZ6C48
      *a

      Component without harness connected

      (Front No. 2 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

  7. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)


    1. Disconnect the H88 stereo component amplifier assembly connector.

    2. Disconnect the L6 and M5 front No. 1 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-5 (WFR+) - L6-1 Always Below 1 Ω
      H88-20 (WFR-) - L6-2 Always Below 1 Ω
      H88-4 (WFL+) - M5-1 Always Below 1 Ω
      H88-19 (WFL-) - M5-2 Always Below 1 Ω
      H88-5 (WFR+) or L6-1 - Body ground Always 10 kΩ or higher
      H88-20 (WFR-) or L6-2 - Body ground Always 10 kΩ or higher
      H88-4 (WFL+) or M5-1 - Body ground Always 10 kΩ or higher
      H88-19 (WFL-) or M5-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


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

    2. B001NN1C04
      *a

      Component without harness connected

      (Front No. 1 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

  9. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)


    1. Disconnect the H88 stereo component amplifier assembly connector.

    2. Disconnect the J2 front No. 3 speaker assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-7 (CTR+) - J2-2 Always Below 1 Ω
      H88-22 (CTR-) - J2-1 Always Below 1 Ω
      H88-7 (CTR+) or J2-2 - Body ground Always 10 kΩ or higher
      H88-22 (CTR-) or J2-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


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

    2. B001NZ6C49
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 4.0 to 6.0 Ω

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

  11. CHECK SPEAKER (OPERATION CHECK)


    1. B001OM4

      Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check Click here.

    2. Perform the operation check above and determine the speaker that is not operating.

      Result
      Not Operating Speaker Proceed to
      Stereo component speaker assembly A
      Rear speaker assembly B

      Tech Tips

      If sound cannot be heard from any speaker, inspect all of them.


    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY) Click here

    A

  12. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - STEREO COMPONENT SPEAKER ASSEMBLY)


    1. Disconnect the H88 stereo component amplifier assembly connector.

    2. Disconnect the Q16 stereo component speaker assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-6 (WF1+) - Q16-1 Always Below 1 Ω
      H88-21 (WF1-) - Q16-2 Always Below 1 Ω
      H88-6 (WF1+) or Q16-1 - Body ground Always 10 kΩ or higher
      H88-21 (WF1-) or Q16-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. Remove the stereo component speaker assembly Click here.

    2. B001NN1C05
      *a

      Component without harness connected

      (Stereo Component Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 2.0 to 3.0 Ω

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here

  14. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY)


    1. Disconnect the H88 stereo component amplifier assembly connector.

    2. Disconnect the N6 and O6 rear speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-15 (RR+) - N6-1 Always Below 1 Ω
      H88-30 (RR-) - N6-2 Always Below 1 Ω
      H88-14 (RL+) - O6-1 Always Below 1 Ω
      H88-29 (RL-) - O6-2 Always Below 1 Ω
      H88-15 (RR+) or N6-1 - Body ground Always 10 kΩ or higher
      H88-30 (RR-) or N6-2 - Body ground Always 10 kΩ or higher
      H88-14 (RL+) or O6-1 - Body ground Always 10 kΩ or higher
      H88-29 (RL-) or O6-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly Click here.

    2. B001NN1C06
      *a

      Component without harness connected

      (Rear Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here