NAVIGATION SYSTEM(for Radio and Display Type) Speaker Circuit

DESCRIPTION

The sound signals amplified by the radio and display receiver assembly are sent to the speakers from the radio and display receiver assembly via the speaker circuit.

If there is a short in a speaker circuit, the radio and display receiver 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 radio and display receiver assembly, telematics transceiver* or speakers.


WIRING DIAGRAM

A01V7N6E01

CAUTION / NOTICE / HINT

Note


  • Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections.

    Click here

  • When replacing telematics transceiver, perform the vehicle contract setting.

    Click here

PROCEDURE


  1. CHECK VEHICLE CONDITION


    1. Check the vehicle condition.

      Result
      Result Proceed to
      w/ Telematics Transceiver A
      w/o Telematics Transceiver B

    B

    CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for LH Side

    • *2: for RH Side


    1. Disconnect the G141 and G142 radio and display receiver assembly connectors.

    2. Disconnect the J1*1 and/or I1*2 front No. 1 speaker assembly connector.

    3. Disconnect the H1*1 and/or H3*2 front No. 2 speaker assembly connector.

    4. Disconnect the L2*1 and/or K2*2 rear speaker assembly connector.

    5. Disconnect the M38 telematics transceiver connector.

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      G141-2 (FL+) - H1-4 (TWL+) Always Below 1 Ω
      G141-6 (FL-) - H1-2 (TWL-) Always Below 1 Ω
      H1-3 (+) - J1-1 Always Below 1 Ω
      H1-1 (-) - J1-2 Always Below 1 Ω
      G142-2 (RL+) - L2-1 Always Below 1 Ω
      G142-6 (RL-) - L2-2 Always Below 1 Ω
      G141-2 (FL+) - Body ground Always 10 kΩ or higher
      G141-6 (FL-) - Body ground Always 10 kΩ or higher
      G142-2 (RL+) - Body ground Always 10 kΩ or higher
      G142-6 (RL-) - Body ground Always 10 kΩ or higher
      H1-3 (+) - Body ground Always 10 kΩ or higher
      H1-1 (-) - Body ground Always 10 kΩ or higher
      for RH Side
      Tester Connection Condition Specified Condition
      G141-1 (FR+) - H3-4 (TWR+) Always Below 1 Ω
      G141-5 (FR-) - H3-2 (TWR-) Always Below 1 Ω
      H3-3 (+) - M38-2 (SPI+) Always Below 1 Ω
      H3-1 (-) - M38-3 (SPI-) Always Below 1 Ω
      M38-5 (SPO+) - I1-1 Always Below 1 Ω
      M38-6 (SPO-) - I1-2 Always Below 1 Ω
      G142-1 (RR+) - K2-1 Always Below 1 Ω
      G142-3 (RR-) - K2-2 Always Below 1 Ω
      G141-1 (FR+) - Body ground Always 10 kΩ or higher
      G141-5 (FR-) - Body ground Always 10 kΩ or higher
      M38-5 (SPO+) - Body ground Always 10 kΩ or higher
      M38-6 (SPO-) - Body ground Always 10 kΩ or higher
      G142-1 (RR+) - Body ground Always 10 kΩ or higher
      G142-3 (RR-) - Body ground Always 10 kΩ or higher
      H3-3 (+) - Body ground Always 10 kΩ or higher
      H3-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TELEMATICS TRANSCEIVER


    1. Remove the telematics transceiver.

      Click here

    2. A01V6Q5C05
      *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
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 5 Click here

    NG

    REPLACE TELEMATICS TRANSCEIVER Click here

  4. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for LH Side

    • *2: for RH Side


    1. Disconnect the G141 and G142 radio and display receiver assembly connectors.

    2. Disconnect the J1*1 and/or I1*2 front No. 1 speaker assembly connector.

    3. Disconnect the H1*1 and/or H3*2 front No. 2 speaker assembly connector.

    4. Disconnect the L2*1 and/or K2*2 rear speaker assembly connector.

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      G141-2 (FL+) - H1-4 (TWL+) Always Below 1 Ω
      G141-6 (FL-) - H1-2 (TWL-) Always Below 1 Ω
      H1-3 (+) - J1-1 Always Below 1 Ω
      H1-1 (-) - J1-2 Always Below 1 Ω
      G142-2 (RL+) - L2-1 Always Below 1 Ω
      G142-6 (RL-) - L2-2 Always Below 1 Ω
      G141-2 (FL+) - Body ground Always 10 kΩ or higher
      G141-6 (FL-) - Body ground Always 10 kΩ or higher
      G142-2 (RL+) - Body ground Always 10 kΩ or higher
      G142-6 (RL-) - Body ground Always 10 kΩ or higher
      H1-3 (+) - Body ground Always 10 kΩ or higher
      H1-1 (-) - Body ground Always 10 kΩ or higher
      for RH Side
      Tester Connection Condition Specified Condition
      G141-1 (FR+) - H3-4 (TWR+) Always Below 1 Ω
      G141-5 (FR-) - H3-2 (TWR-) Always Below 1 Ω
      H3-3 (+) - I1-1 Always Below 1 Ω
      H3-1 (-) - I1-2 Always Below 1 Ω
      G142-1 (RR+) - K2-1 Always Below 1 Ω
      G142-3 (RR-) - K2-2 Always Below 1 Ω
      G141-1 (FR+) - Body ground Always 10 kΩ or higher
      G141-5 (FR-) - Body ground Always 10 kΩ or higher
      G142-1 (RR+) - Body ground Always 10 kΩ or higher
      G142-3 (RR-) - Body ground Always 10 kΩ or higher
      H3-3 (+) - Body ground Always 10 kΩ or higher
      H3-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly connector.

      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

  6. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


    1. Replace the front No. 2 speaker assembly with a known good one.

      Click here

    2. Check the malfunction disappears.

      Tech Tips


      • Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.

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

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

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  7. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly connector.

      Click here

    2. Inspect the rear speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here