NAVIGATION SYSTEM Speaker Circuit

DESCRIPTION



WIRING DIAGRAM


  1. w/o Front Center Speaker

    A01CC64E01

  2. w/ Front Center Speaker

    A01CBXTE02
    A01CB67E02
    A01CF6KE01
    A01CFGAE02

INSPECTION PROCEDURE

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      w/o Front Center Speaker A
      w/ Front Center Speaker B

    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the F34 and F19 navigation ECU sub-assembly connectors.

    2. Disconnect the J1 and I1 front No. 1 speaker assembly connectors.

    3. Disconnect the H2 and H3 front No. 2 speaker assembly connectors.

    4. Disconnect the L10 and K10 No. 1 speaker with box assembly connectors.

    5. Disconnect the R3 and R4 roof speaker assembly connectors.

    6. Disconnect the F7 radio setting condenser connector.

    7. Measure the resistance between each of the front No. 2 speaker assemblies and the navigation ECU sub-assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F34-1 (FR+) - H2-2 Always Below 1 Ω
      F34-5 (FR-) - H2-4 Always Below 1 Ω
      F34-2 (FL+) - H3-2 Always Below 1 Ω
      F34-6 (FL-) - H3-4 Always Below 1 Ω

    8. Measure the resistance between each of the front No. 1 speaker assemblies and the navigation ECU sub-assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F34-1 (FR+) - I1-1 Always Below 1 Ω
      F34-5 (FR-) - I1-2 Always Below 1 Ω
      F34-2 (FL+) - J1-1 Always Below 1 Ω
      F34-6 (FL-) - J1-2 Always Below 1 Ω

    9. Measure the resistance between the navigation ECU sub-assembly and the radio setting condenser to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F19-1 (RR+) - F7-12 (RIN) Always Below 1 Ω
      F19-3 (RR-) - F7-11 (ROUT) Always Below 1 Ω
      F19-2 (RL+) - F7-6 (LIN) Always Below 1 Ω
      F19-6 (RL-) - F7-7 (LOUT) Always Below 1 Ω

    10. Measure the resistance between each of the No. 1 speaker with box assemblies and the radio setting condenser to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F7-2 (LO+) - L10-1 Always Below 1 Ω
      F7-3 (LO-) - L10-2 Always Below 1 Ω
      F7-4 (RO+) - K10-1 Always Below 1 Ω
      F7-9 (RO-) - K10-2 Always Below 1 Ω

    11. Measure the resistance between each of the roof speaker assemblies and the radio setting condenser to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F7-1 (LI+) - R3-1 Always Below 1 Ω
      F7-8 (LI-) - R3-2 Always Below 1 Ω
      F7-5 (RI+) - R4-1 Always Below 1 Ω
      F7-10 (RI-) - R4-2 Always Below 1 Ω

    12. Measure the resistance between each speaker, navigation ECU sub-assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H2-2 - Body ground Always 10 kΩ or higher
      H2-4 - Body ground Always 10 kΩ or higher
      I1-1 - Body ground Always 10 kΩ or higher
      I1-2 - Body ground Always 10 kΩ or higher
      H3-2 - Body ground Always 10 kΩ or higher
      H3-4 - Body ground Always 10 kΩ or higher
      J1-1 - Body ground Always 10 kΩ or higher
      J1-2 - Body ground Always 10 kΩ or higher
      L10-1 - Body ground Always 10 kΩ or higher
      L10-2 - Body ground Always 10 kΩ or higher
      K10-1 - Body ground Always 10 kΩ or higher
      K10-2 - Body ground Always 10 kΩ or higher
      R3-1 - Body ground Always 10 kΩ or higher
      R3-2 - Body ground Always 10 kΩ or higher
      R4-1 - Body ground Always 10 kΩ or higher
      R4-2 - Body ground Always 10 kΩ or higher
      F19-1 (RR+) - Body ground Always 10 kΩ or higher
      F19-3 (RR-) - Body ground Always 10 kΩ or higher
      F19-2 (RL+) - Body ground Always 10 kΩ or higher
      F19-6 (RL-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01CFIZE07
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Front No. 1 Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I1-1 - I1-2 Always 3.2 to 4.8 Ω
        J1-1 - J1-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01CC4OE20
        Text in Illustration
        *A for RH
        *B for LH
        *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
        H2-2 - H2-4 Always 10 kΩ or higher
        H3-2 - H3-4 Always 10 kΩ or higher

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  5. REPLACE FRONT NO. 2 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. 2 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left rear 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 NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE)

  6. INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY


    1. A01CFIZE08
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (No. 1 Speaker with Box Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        K10-1 - K10-2 Always 3.2 to 4.8 Ω
        L10-1 - L10-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    OK

  7. INSPECT ROOF SPEAKER ASSEMBLY (ROOF HEADLINING ASSEMBLY)


    1. A01CAUDE07
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Roof Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R4-1 - R4-2 Always 6.4 to 9.6 Ω
        R3-1 - R3-2 Always 6.4 to 9.6 Ω

    NG

    REPLACE ROOF SPEAKER ASSEMBLY (ROOF HEADLINING ASSEMBLY) Click here

    OK

  8. REPLACE RADIO SETTING CONDENSER


    1. Check that the malfunction disappears when a known good radio setting condenser is installed.

      OK
      Malfunction disappears.

    NG

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

    OK

    END (RADIO SETTING CONDENSER WAS DEFECTIVE)

  9. CHECK HARNESS AND CONNECTOR


    1. Disconnect the F25, F26, F27 and F29 stereo component amplifier assembly connectors.

    2. Disconnect the K10 and L10 No. 1 speaker with box assembly connectors.

    3. Disconnect the K15 and L14 rear No. 3 speaker assembly connectors.

    4. Disconnect the I1 and J1 front No. 1 speaker assembly connectors.

    5. Disconnect the H7 and H8 front No. 2 speaker assembly connectors.

    6. Disconnect the H6 front No. 3 speaker assembly connector.

    7. Disconnect the M29 and N35 rear No. 2 speaker assembly connectors.

    8. Disconnect the R26 and R25 roof speaker assembly (rear) connectors.

    9. Disconnect the R4 and R3 roof speaker assembly (center) connectors.

    10. Disconnect the R28 and R27 roof speaker assembly (front) connectors.

    11. Disconnect the V17 No. 2 speaker with box assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F29-4 (MR+) - K10-1 Always Below 1 Ω
      F29-10 (MR-) - K10-2 Always Below 1 Ω
      F29-3 (ML+) - L10-1 Always Below 1 Ω
      F29-9 (ML-) - L10-2 Always Below 1 Ω

    13. Measure the resistance between each of the rear No. 3 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F29-4 (MR+) - K15-1 Always Below 1 Ω
      F29-10 (MR-) - K15-2 Always Below 1 Ω
      F29-3 (ML+) - L14-1 Always Below 1 Ω
      F29-9 (ML-) - L14-2 Always Below 1 Ω

    14. Measure the resistance between each of the front No. 1 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F26-2 (WFR+) - I1-1 Always Below 1 Ω
      F26-6 (WFR-) - I1-2 Always Below 1 Ω
      F26-1 (WFL+) - J1-1 Always Below 1 Ω
      F26-5 (WFL-) - J1-2 Always Below 1 Ω

    15. Measure the resistance between each of the front No. 2 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F27-2 (FR+) - H7-2 Always Below 1 Ω
      F27-7 (FR-) - H7-1 Always Below 1 Ω
      F27-1 (FL+) - H8-2 Always Below 1 Ω
      F27-6 (FL-) - H8-1 Always Below 1 Ω

    16. Measure the resistance between the front No. 3 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
      F29-2 (CTR+) - H6-2 Always Below 1 Ω
      F29-6 (CTR-) - H6-1 Always Below 1 Ω

    17. Measure the resistance between each of the rear No. 2 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F26-4 (RR+) - M29-1 Always Below 1 Ω
      F26-10 (RR-) - M29-2 Always Below 1 Ω
      F26-3 (RL+) - N35-1 Always Below 1 Ω
      F26-9 (RL-) - N35-2 Always Below 1 Ω

    18. Measure the resistance between each of the roof speaker assemblies (rear) and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F27-10 (ROR+) - R26-1 Always Below 1 Ω
      F27-9 (ROR-) - R26-2 Always Below 1 Ω
      F27-3 (ROL+) - R25-1 Always Below 1 Ω
      F27-8 (ROL-) - R25-2 Always Below 1 Ω

    19. Measure the resistance between each of the roof speaker assemblies (center) and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F27-5 (SR+) - R4-1 Always Below 1 Ω
      F27-12 (SR-) - R4-2 Always Below 1 Ω
      F27-4 (SL+) - R3-1 Always Below 1 Ω
      F27-11 (SL-) - R3-2 Always Below 1 Ω

    20. Measure the resistance between each of the roof speaker assemblies (front) and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F25-1 (DR+) - R28-1 Always Below 1 Ω
      F25-4 (DR-) - R28-2 Always Below 1 Ω
      F25-2 (DL+) - R27-1 Always Below 1 Ω
      F25-5 (DL-) - R27-2 Always Below 1 Ω

    21. Measure the resistance between the No. 2 speaker with box assembly and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F29-1 (WF1+) - V17-1 (WF1+) Always Below 1 Ω
      F29-5 (WF1-) - V17-4 (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
      F29-4 (MR+) - Body ground Always 10 kΩ or higher
      F29-10 (MR-) - Body ground Always 10 kΩ or higher
      F29-3 (ML+) - Body ground Always 10 kΩ or higher
      F29-9 (ML-) - Body ground Always 10 kΩ or higher
      F26-2 (WFR+) - Body ground Always 10 kΩ or higher
      F26-6 (WFR-) - Body ground Always 10 kΩ or higher
      F26-1 (WFL+) - Body ground Always 10 kΩ or higher
      F26-5 (WFL-) - Body ground Always 10 kΩ or higher
      F27-2 (FR+) - Body ground Always 10 kΩ or higher
      F27-7 (FR-) - Body ground Always 10 kΩ or higher
      F27-1 (FL+) - Body ground Always 10 kΩ or higher
      F27-6 (FL-) - Body ground Always 10 kΩ or higher
      F29-2 (CTR+) - Body ground Always 10 kΩ or higher
      F29-6 (CTR-) - Body ground Always 10 kΩ or higher
      F26-4 (RR+) - Body ground Always 10 kΩ or higher
      F26-10 (RR-) - Body ground Always 10 kΩ or higher
      F26-3 (RL+) - Body ground Always 10 kΩ or higher
      F26-9 (RL-) - Body ground Always 10 kΩ or higher
      F27-10 (ROR+) - Body ground Always 10 kΩ or higher
      F27-9 (ROR-) - Body ground Always 10 kΩ or higher
      F27-3 (ROL+) - Body ground Always 10 kΩ or higher
      F27-8 (ROL-) - Body ground Always 10 kΩ or higher
      F27-5 (SR+) - Body ground Always 10 kΩ or higher
      F27-12 (SR-) - Body ground Always 10 kΩ or higher
      F27-4 (SL+) - Body ground Always 10 kΩ or higher
      F27-11 (SL-) - Body ground Always 10 kΩ or higher
      F25-1 (DR+) - Body ground Always 10 kΩ or higher
      F25-4 (DR-) - Body ground Always 10 kΩ or higher
      F25-2 (DL+) - Body ground Always 10 kΩ or higher
      F25-5 (DL-) - Body ground Always 10 kΩ or higher
      F29-1 (WF1+) - Body ground Always 10 kΩ or higher
      F29-5 (WF1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY


    1. Resistance check


      1. A01CG11E25
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (No. 1 Speaker with Box Assembly)

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        K10-1 - K10-2 Always 3.2 to 4.8 Ω
        L10-1 - L10-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    OK

  11. INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01CE8VE01
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Rear No. 3 Speaker Assembly)

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        K15-1 - K15-2 Always 10 kΩ or higher
        L14-1 - L14-2 Always 10 kΩ or higher

    NG

    REPLACE REAR NO. 3 SPEAKER ASSEMBLY Click here

    OK

  12. REPLACE REAR 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 rear No. 3 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left rear 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. 1 SPEAKER ASSEMBLY Click here

    OK

    END (REAR NO. 3 SPEAKER ASSEMBLY WAS DEFECTIVE)

  13. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01CG11E26
        Text in Illustration
        *A for RH
        *B for LH
        *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
        I1-1 - I1-2 Always 4.8 to 7.2 Ω
        J1-1 - J1-2 Always 4.8 to 7.2 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  14. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01CG11E58
        Text in Illustration
        *A for RH
        *B for LH
        *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
        H7-1 - H7-2 Always 3.2 to 4.8 Ω
        H8-1 - H8-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  15. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. A01CG11E28
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        H6-1 - H6-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  16. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01CG11E29
        Text in Illustration
        *A for RH
        *B for LH
        *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
        M29-1 - M29-2 Always 3.2 to 4.8 Ω
        N35-1 - N35-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  17. INSPECT ROOF SPEAKER ASSEMBLY (REAR)


    1. A01CAUDE04
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Roof Speaker Assembly (Rear))

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R26-1 - R26-2 Always 3.2 to 4.8 Ω
        R25-1 - R25-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE ROOF SPEAKER ASSEMBLY (REAR) Click here

    OK

  18. INSPECT ROOF SPEAKER ASSEMBLY (CENTER)


    1. A01CAUDE03
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Roof Speaker Assembly (Center))

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R4-1 - R4-2 Always 3.2 to 4.8 Ω
        R3-1 - R3-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE ROOF SPEAKER ASSEMBLY (CENTER) Click here

    OK

  19. INSPECT ROOF SPEAKER ASSEMBLY (FRONT)


    1. A01CAUDE05
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Roof Speaker Assembly (Front))

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R28-1 - R28-2 Always 3.2 to 4.8 Ω
        R27-1 - R27-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE ROOF SPEAKER ASSEMBLY (FRONT) Click here

    OK

  20. CHECK HARNESS AND CONNECTOR (NO. 2 SPEAKER WITH BOX ASSEMBLY - BATTERY, BODY GROUND)


    1. Disconnect the V17 No. 2 speaker with box assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      V17-8 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      V17-7 (+B) - V17-8 (GND) Always 11 to 14 V
      V17-3 (AMP+) - V17-8 (GND) Engine switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  21. REPLACE NO. 2 SPEAKER WITH BOX ASSEMBLY


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

      OK
      Malfunction disappears.

      Tech Tips

      Connect all the connector to the No. 2 speaker with box assembly that was disconnected.


    NG

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

    OK

    END (NO. 2 SPEAKER WITH BOX ASSEMBLY WAS DEFECTIVE)