NAVIGATION 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, telematics transceiver*1 or speakers.


WIRING DIAGRAM


  1. for 10 Speakers

    A003Z1FE02
    A003ZPQE01

  2. for 13 Speakers

    A003V40E03
    A003VJ0E02

INSPECTION PROCEDURE

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. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 10 Speakers A
      for 13 Speakers B

    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the H57 and H58 stereo component amplifier assembly connectors.

    2. Disconnect the H145 telematics transceiver connector (w/ Telematics Transceiver).

    3. Disconnect the J1 and K1 front No. 1 speaker assembly connectors.

    4. Disconnect the I3 and I5 front No. 2 speaker assembly connectors.

    5. Disconnect the I4 and I6 front No. 3 speaker assembly connectors.

    6. Disconnect the I2 front No. 4 speaker assembly connector.

    7. Disconnect the L4 and M4 rear speaker assembly connectors.

    8. Disconnect the P15 No. 1 speaker assembly with box connector.

    9. Measure the resistance between the front No. 1 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H57-10 (FR+) - J1-1 Always Below 1 Ω
      H57-9 (FR-) - J1-2 Always Below 1 Ω

    10. Measure the resistance between the front No. 1 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H57-3 (FL+) - K1-1 Always Below 1 Ω
      H57-8 (FL-) - K1-2 Always Below 1 Ω

    11. Measure the resistance between the front No. 2 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness (w/o Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-4 (MR+) - I3-2 Always Below 1 Ω
      H58-10 (MR-) - I3-1 Always Below 1 Ω

    12. Measure the resistance between the stereo component amplifier assembly and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-4 (MR+) - H145-2 (SPI+) Always Below 1 Ω
      H58-10 (MR-) - H145-3 (SPI-) Always Below 1 Ω

    13. Measure the resistance between the front No. 2 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I3-2 Always Below 1 Ω
      H145-6 (SPO-) - I3-1 Always Below 1 Ω

    14. Measure the resistance between the front No. 2 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-3 (ML+) - I5-2 Always Below 1 Ω
      H58-9 (ML-) - I5-1 Always Below 1 Ω

    15. Measure the resistance between the front No. 3 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness (w/o Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-4 (MR+) - I4-2 Always Below 1 Ω
      H58-10 (MR-) - I4-1 Always Below 1 Ω

    16. Measure the resistance between the front No. 3 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I4-2 Always Below 1 Ω
      H145-6 (SPO-) - I4-1 Always Below 1 Ω

    17. Measure the resistance between the front No. 3 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-3 (ML+) - I6-2 Always Below 1 Ω
      H58-9 (ML-) - I6-1 Always Below 1 Ω

    18. Measure the resistance between the front No. 4 speaker assembly and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-8 (CTR+) - I2-2 (+) Always Below 1 Ω
      H58-7 (CTR-) - I2-1 (-) Always Below 1 Ω

    19. Measure the resistance between the rear speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H57-5 (RR+) - L4-1 Always Below 1 Ω
      H57-12 (RR-) - L4-2 Always Below 1 Ω

    20. Measure the resistance between the rear speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H57-4 (RL+) - M4-1 Always Below 1 Ω
      H57-11 (RL-) - M4-2 Always Below 1 Ω

    21. Measure the resistance between the No. 1 speaker assembly with box and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-1 (WF1+) - P15-2 (WF1+) Always Below 1 Ω
      H58-2 (WF2+) - P15-4 (WF2+) Always Below 1 Ω

    22. Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H57-10 (FR+) - Body ground Always 10 kΩ or higher
      H57-9 (FR-) - Body ground Always 10 kΩ or higher
      H57-3 (FL+) - Body ground Always 10 kΩ or higher
      H57-8 (FL-) - Body ground Always 10 kΩ or higher
      H57-5 (RR+) - Body ground Always 10 kΩ or higher
      H57-12 (RR-) - Body ground Always 10 kΩ or higher
      H57-4 (RL+) - Body ground Always 10 kΩ or higher
      H57-11 (RL-) - Body ground Always 10 kΩ or higher
      H58-4 (MR+) - Body ground Always 10 kΩ or higher
      H58-10 (MR-) - Body ground Always 10 kΩ or higher
      H58-3 (ML+) - Body ground Always 10 kΩ or higher
      H58-9 (ML-) - Body ground Always 10 kΩ or higher
      H58-8 (CTR+) - Body ground Always 10 kΩ or higher
      H58-7 (CTR-) - Body ground Always 10 kΩ or higher
      H58-1 (WF1+) - Body ground Always 10 kΩ or higher
      H58-2 (WF2+) - Body ground Always 10 kΩ or higher

    23. Measure the resistance between the telematics transceiver and body ground to check for a short circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - Body ground Always 10 kΩ or higher
      H145-6 (SPO-) - Body ground Always 10 kΩ or higher

    24. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      NG A
      OK B

    B

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK HARNESS AND CONNECTOR


    1. Disconnect the k1 stereo component amplifier assembly connector.

    2. Disconnect the H145 telematics transceiver connector (w/ Telematics Transceiver).

    3. Disconnect the J1 and K1 front No. 1 speaker assembly connectors.

    4. Disconnect the I3 and I5 front No. 2 speaker assembly connectors.

    5. Disconnect the I4 and I6 front No. 3 speaker assembly connectors.

    6. Disconnect the I2 front No. 4 speaker assembly connector.

    7. Disconnect the Q10 and P14 rear No. 2 speaker assembly connectors.

    8. Disconnect the P15 No. 1 speaker assembly with box connector.

    9. Measure the resistance between the front No. 1 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-13 (FR+) - J1-1 Always Below 1 Ω
      k1-28 (FR-) - J1-2 Always Below 1 Ω

    10. Measure the resistance between the front No. 1 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-12 (FL+) - K1-1 Always Below 1 Ω
      k1-27 (FL-) - K1-2 Always Below 1 Ω

    11. Measure the resistance between the front No. 2 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness (w/o Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-11 (MR+) - I3-2 Always Below 1 Ω
      k1-26 (MR-) - I3-1 Always Below 1 Ω

    12. Measure the resistance between the stereo component amplifier assembly and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-11 (MR+) - H145-2 (SPI+) Always Below 1 Ω
      k1-26 (MR-) - H145-3 (SPI-) Always Below 1 Ω

    13. Measure the resistance between the front No. 2 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I3-2 Always Below 1 Ω
      H145-6 (SPO-) - I3-1 Always Below 1 Ω

    14. Measure the resistance between the front No. 2 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-10 (ML+) - I5-2 Always Below 1 Ω
      k1-25 (ML-) - I5-1 Always Below 1 Ω

    15. Measure the resistance between the front No. 3 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness (w/o Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-11 (MR+) - I4-2 Always Below 1 Ω
      k1-26 (MR-) - I4-1 Always Below 1 Ω

    16. Measure the resistance between the front No. 3 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I4-2 Always Below 1 Ω
      H145-6 (SPO-) - I4-1 Always Below 1 Ω

    17. Measure the resistance between the front No. 3 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-10 (ML+) - I6-2 Always Below 1 Ω
      k1-25 (ML-) - I6-1 Always Below 1 Ω

    18. Measure the resistance between the front No. 4 speaker assembly and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-7 (CTR+) - I2-2 (+) Always Below 1 Ω
      k1-22 (CTR-) - I2-1 (-) Always Below 1 Ω

    19. Measure the resistance between the rear No. 2 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-15 (RR+) - Q10-2 (+) Always Below 1 Ω
      k1-30 (RR-) - Q10-1 (-) Always Below 1 Ω

    20. Measure the resistance between the rear No. 2 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-14 (RL+) - P14-2 (+) Always Below 1 Ω
      k1-29 (RL-) - P14-1 (-) Always Below 1 Ω

    21. Measure the resistance between the No. 1 speaker assembly with box and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-5 (WF2+) - P15-4 (WF2+) Always Below 1 Ω
      k1-6 (WF1+) - P15-2 (WF1+) Always Below 1 Ω

    22. Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      k1-13 (FR+) - Body ground Always 10 kΩ or higher
      k1-28 (FR-) - Body ground Always 10 kΩ or higher
      k1-12 (FL+) - Body ground Always 10 kΩ or higher
      k1-27 (FL-) - Body ground Always 10 kΩ or higher
      k1-11 (MR+) - Body ground Always 10 kΩ or higher
      k1-26 (MR-) - Body ground Always 10 kΩ or higher
      k1-10 (ML+) - Body ground Always 10 kΩ or higher
      k1-25 (ML-) - Body ground Always 10 kΩ or higher
      k1-7 (CTR+) - Body ground Always 10 kΩ or higher
      k1-22 (CTR-) - Body ground Always 10 kΩ or higher
      k1-15 (RR+) - Body ground Always 10 kΩ or higher
      k1-30 (RR-) - Body ground Always 10 kΩ or higher
      k1-14 (RL+) - Body ground Always 10 kΩ or higher
      k1-29 (RL-) - Body ground Always 10 kΩ or higher
      k1-5 (WF2+) - Body ground Always 10 kΩ or higher
      k1-6 (WF1+) - Body ground Always 10 kΩ or higher

    23. Measure the resistance between the telematics transceiver and body ground to check for a short circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - Body ground Always 10 kΩ or higher
      H145-6 (SPO-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

    2. A003XY3E07
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 1 Speaker Assembly)

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

      Standard Resistance
      for 10 Speakers
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω
      for 13 Speakers
      Tester Connection Condition Specified Condition
      1 - 2 Always 5 to 7 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

    2. A003ZD0E30
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 2 Speaker Assembly)

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

      Standard Resistance
      for 10 Speakers
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω
      for 13 Speakers
      Tester Connection Condition Specified Condition
      1 - 2 Always 4.6 to 7 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly.

    2. A003V6JE06
      Text in Illustration
      *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 10 kΩ or higher

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  7. REPLACE FRONT NO. 3 SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a known good speaker is installed Click here.

      OK
      Malfunction disappears.

      Tech Tips


      • Connect all the connectors to the front No. 3 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left speaker is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both LH and RH sides.


    NG

    INSPECT FRONT NO. 4 SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 3 SPEAKER ASSEMBLY WAS DEFECTIVE)

  8. INSPECT FRONT NO. 4 SPEAKER ASSEMBLY


    1. Remove the front No. 4 speaker assembly.

    2. A003ZD0E31
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 4 Speaker Assembly)

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

      Standard Resistance
      for 10 Speakers
      Tester Connection Condition Specified Condition
      1 (-) - 2 (+) Always 3.2 to 4.8 Ω
      for 13 Speakers
      Tester Connection Condition Specified Condition
      1 (-) - 2 (+) Always 4.6 to 7 Ω

    NG

    REPLACE FRONT NO. 4 SPEAKER ASSEMBLY Click here

    OK

  9. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 10 Speakers A
      for 13 Speakers B

    B

    INSPECT REAR NO. 2 SPEAKER ASSEMBLY Click here

    A

  10. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

    2. A003XY3E07
      Text in Illustration
      *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

    3. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      NG A
      OK B

    B

    INSPECT NO. 1 SPEAKER ASSEMBLY WITH BOX Click here

    A

    REPLACE REAR SPEAKER ASSEMBLY Click here

  11. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly.

    2. A003ZD0E31
      Text in Illustration
      *a

      Component without harness connected

      (Rear 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 4.6 to 7 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  12. INSPECT NO. 1 SPEAKER ASSEMBLY WITH BOX


    1. Remove the No. 1 speaker assembly with box.

    2. A003ZDME03
      Text in Illustration
      *a

      Component without harness connected

      (No. 1 Speaker Assembly with Box)

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

      Standard Resistance
      for 10 Speakers
      Tester Connection Condition Specified Condition
      2 (WF1+) - 4 (WF2+) Always 1.6 to 2.4 Ω
      for 13 Speakers
      Tester Connection Condition Specified Condition
      2 (WF1+) - 4 (WF2+) Always 11.6 to 12.4 Ω

    3. Proceed to the next step based on the inspection result.

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

    B

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

    C

    REPLACE NO. 1 SPEAKER ASSEMBLY WITH BOX Click here

    A

  13. INSPECT TELEMATICS TRANSCEIVER


    1. Remove the telematics transceiver.

    2. A003WMKE30
      Text in Illustration
      *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
      3 (SPI-) - Body ground Always 10 kΩ or higher
      2 (SPI+) - Body ground Always 10 kΩ or higher

    NG

    REPLACE TELEMATICS TRANSCEIVER Click here

    OK

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