NAVIGATION SYSTEM Speaker Circuit

DESCRIPTION



WIRING DIAGRAM

Figure 1. for 6 Speakers

B0071LNE01

Figure 2. for 9 Speakers

B006ZICE02
*a Front No. 2 Speaker Assembly RH
*b Rear Stereo Component Speaker Assembly
*c Stereo Component Amplifier Assembly
B006Y17E04

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

  • When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio and display receiver assembly may not operate normally.

PROCEDURE


  1. CHECK MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 6 Speakers A
      for 9 Speakers B

    B

    CHECK SPEAKER (OPERATION CHECK) Click here

    A

  2. CHECK SPEAKER (OPERATION CHECK)


    1. B0071HC

      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. 1 speaker assembly or front No. 2 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 (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the K4 radio and display receiver assembly connector.

    2. Disconnect the N1 and O1 front No. 1 speaker assembly connectors.

    3. Disconnect the K7 and K8 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
      K4-1 (FR+) - K7-4 (TWR+) Always Below 1 Ω
      K4-6 (FR-) - K7-2 (TWR-) Always Below 1 Ω
      K4-2 (FL+) - K8-4 (TWL+) Always Below 1 Ω
      K4-7 (FL-) - K8-2 (TWL-) Always Below 1 Ω
      N1-2 - K7-3 (+) Always Below 1 Ω
      N1-1 - K7-1 (-) Always Below 1 Ω
      O1-2 - K8-3 (+) Always Below 1 Ω
      O1-1 - K8-1 (-) Always Below 1 Ω
      K4-1 (FR+) or K7-4 (TWR+) - Body ground Always 10 kΩ or higher
      K4-6 (FR-) or K7-2 (TWR-) - Body ground Always 10 kΩ or higher
      K4-2 (FL+) or K8-4 (TWL+) - Body ground Always 10 kΩ or higher
      K4-7 (FL-) or K8-2 (TWL-) - Body ground Always 10 kΩ or higher
      N1-2 or K7-3 (+) - Body ground Always 10 kΩ or higher
      N1-1 or K7-1 (-) - Body ground Always 10 kΩ or higher
      O1-2 or K8-3 (+) - Body ground Always 10 kΩ or higher
      O1-1 or K8-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. 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

  5. REPLACE 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

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

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

  6. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY)


    1. Disconnect the K4 radio and display receiver assembly connector.

    2. Disconnect the Q1 and P1 rear speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K4-4 (RR+) - P1-1 Always Below 1 Ω
      K4-9 (RR-) - P1-2 Always Below 1 Ω
      K4-3 (RL+) - Q1-1 Always Below 1 Ω
      K4-8 (RL-) - Q1-2 Always Below 1 Ω
      K4-4 (RR+) or P1-1 - Body ground Always 10 kΩ or higher
      K4-9 (RR-) or P1-2 - Body ground Always 10 kΩ or higher
      K4-3 (RL+) or Q1-1 - Body ground Always 10 kΩ or higher
      K4-8 (RL-) or Q1-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. Inspect the rear speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

  8. CHECK SPEAKER (OPERATION CHECK)


    1. B0071HC

      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. 1 speaker assembly or front No. 3 speaker assembly A
      Front No. 2 speaker assembly B
      Rear speaker assembly C
      Rear stereo component speaker assembly D

      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 - REAR SPEAKER ASSEMBLY) Click here

    D

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

    A

  9. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)


    1. Disconnect the K14 stereo component amplifier assembly connector.

    2. Disconnect the N1 and O1 front No. 1 speaker assembly connectors.

    3. Disconnect the K109 and K110 front No. 3 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K14-15 (FR+) - K109-4 (+TW) Always Below 1 Ω
      K14-30 (FR-) - K109-2 (-TW) Always Below 1 Ω
      K14-13 (FL+) - K110-4 (+TW) Always Below 1 Ω
      K14-28 (FL-) - K110-2 (-TW) Always Below 1 Ω
      N1-2 - K109-3 (+) Always Below 1 Ω
      N1-1 - K109-1 (-) Always Below 1 Ω
      O1-2 - K110-3 (+) Always Below 1 Ω
      O1-1 - K110-1 (-) Always Below 1 Ω
      K14-15 (FR+) or K109-4 (+TW) - Body ground Always 10 kΩ or higher
      K14-30 (FR-) or K109-2 (-TW) - Body ground Always 10 kΩ or higher
      K14-13 (FL+) or K110-4 (+TW) - Body ground Always 10 kΩ or higher
      K14-28 (FL-) or K110-2 (-TW) - Body ground Always 10 kΩ or higher
      N1-2 or K109-3 (+) - Body ground Always 10 kΩ or higher
      N1-1 or K109-1 (-) - Body ground Always 10 kΩ or higher
      O1-2 or K110-3 (+) - Body ground Always 10 kΩ or higher
      O1-1 or K110-1 (-) - 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. REPLACE 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

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

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

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


    1. Disconnect the K14 stereo component amplifier assembly connector.

    2. Disconnect the K94 and K95 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
      K14-14 (TWR+) - K94-2 Always Below 1 Ω
      K14-29 (TWR-) - K94-1 Always Below 1 Ω
      K14-12 (TWL+) - K95-2 Always Below 1 Ω
      K14-27 (TWL-) - K95-1 Always Below 1 Ω
      K14-14 (TWR+) or K94-2 - Body ground Always 10 kΩ or higher
      K14-29 (TWR-) or K94-1 - Body ground Always 10 kΩ or higher
      K14-12 (TWL+) or K95-2 - Body ground Always 10 kΩ or higher
      K14-27 (TWL-) or K95-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. 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

    OK

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

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

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


    1. Disconnect the K14 stereo component amplifier assembly connector.

    2. Disconnect the P1 and Q1 rear speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K14-11 (RR+) - P1-1 Always Below 1 Ω
      K14-26 (RR-) - P1-2 Always Below 1 Ω
      K14-9 (RL+) - Q1-1 Always Below 1 Ω
      K14-24 (RL-) - Q1-2 Always Below 1 Ω
      K14-11 (RR+) or P1-1 - Body ground Always 10 kΩ or higher
      K14-26 (RR-) or P1-2 - Body ground Always 10 kΩ or higher
      K14-9 (RL+) or Q1-1 - Body ground Always 10 kΩ or higher
      K14-24 (RL-) or Q1-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. Inspect the rear speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

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


    1. Disconnect the K14 stereo component amplifier assembly connector.

    2. Disconnect the R1 rear 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
      K14-10 (WF1+) - R1-4 (WF1+) Always Below 1 Ω
      K14-25 (WF1-) - R1-3 (WF1-) Always Below 1 Ω
      K14-8 (WF2+) - R1-2 (WF2+) Always Below 1 Ω
      K14-23 (WF2-) - R1-1 (WF2-) Always Below 1 Ω
      K14-10 (WF1+) or R1-4 (WF1+) - Body ground Always 10 kΩ or higher
      K14-25 (WF1-) or R1-3 (WF1-) - Body ground Always 10 kΩ or higher
      K14-8 (WF2+) or R1-2 (WF2+) - Body ground Always 10 kΩ or higher
      K14-23 (WF2-) or R1-1 (WF2-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. INSPECT REAR STEREO COMPONENT SPEAKER ASSEMBLY


    1. Remove the rear stereo component speaker assembly.

      Click here

    2. Inspect the rear stereo component speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE REAR STEREO COMPONENT SPEAKER ASSEMBLY Click here