NAVIGATION SYSTEM(for Radio and Display Type), Diagnostic DTC:B15C3

DTC Code DTC Name
B15C3 Speaker Output Short

DESCRIPTION

This DTC is stored when a malfunction occurs in the speakers.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15C3 Speaker Output Short A short is detected in the speaker output circuit

  • Harness or connector

  • Speaker

  • Radio and display receiver assembly*1

  • Stereo Component Amplifier*2

WIRING DIAGRAM

Figure 1. for 6 Speakers

B004PQ7E81

Figure 2. for 10 Speakers

B004PSGE01

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 6 Speakers A
      for 10 Speakers B

    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BODY GROUND) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BODY GROUND)


    1. Disconnect the F32 and F33 radio and display receiver assembly connectors.

    2. Disconnect the G3 and G6 front No. 2 speaker assembly connectors.

    3. Disconnect the K4 and L5 rear speaker assembly connectors.

    4. Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F32-1 (FR+) or G3-4 (TWR+) - Body ground Always 10 kΩ or higher
      F32-5 (FR-) or G3-2 (TWR-) - Body ground Always 10 kΩ or higher
      F32-2 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher
      F32-6 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher
      F33-1 (RR+) or K4-1 - Body ground Always 10 kΩ or higher
      F33-3 (RR-) or K4-2 - Body ground Always 10 kΩ or higher
      F33-2 (RL+) or L5-1 - Body ground Always 10 kΩ or higher
      F33-6 (RL-) or L5-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY, FRONT NO. 2 SPEAKER ASSEMBLY - BODY GROUND)


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

    2. Disconnect the G3 and G6 front No. 2 speaker assembly connectors.

    3. Measure the resistance between each of the front No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G3-3 (+) or I1-1 - Body ground Always 10 kΩ or higher
      G3-1 (-) or I1-2 - Body ground Always 10 kΩ or higher
      G6-3 (+) or J1-1 - Body ground Always 10 kΩ or higher
      G6-1 (-) or J1-2 - 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.

      Tech Tips

      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. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Tech Tips

      Click here

    2. Inspect the front No. 2 speaker assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CLEAR DTC


    1. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK FOR DTC


    1. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    A

    END

    B

  8. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Tech Tips

      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

  9. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BODY GROUND)


    1. Disconnect the F60 stereo component amplifier assembly connector.

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

    3. Disconnect the G4 and G5 front No. 2 speaker assembly connectors.

    4. Disconnect the K4 and L5 rear speaker assembly connectors.

    5. 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
      F60-15 (FR+) or I1-1 - Body ground Always 10 kΩ or higher
      F60-30 (FR-) or I1-2 - Body ground Always 10 kΩ or higher
      F60-8 (FL+) or J1-1 - Body ground Always 10 kΩ or higher
      F60-23 (FL-) or J1-2- Body ground Always 10 kΩ or higher
      F60-13 (TWR+) or G4-4 - Body ground Always 10 kΩ or higher
      F60-28 (TWR-) or G4-3 - Body ground Always 10 kΩ or higher
      F60-10 (TWL+) or G5-4 - Body ground Always 10 kΩ or higher
      F60-25 (TWL-) or G5-3 - Body ground Always 10 kΩ or higher
      F60-11 (RR+) or K4-1 - Body ground Always 10 kΩ or higher
      F60-26 (RR-) or K4-2 - Body ground Always 10 kΩ or higher
      F60-12 (RL+) or L5-1 - Body ground Always 10 kΩ or higher
      F60-27 (RL-) or L5-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Tech Tips

      Click here

    2. Inspect the front No. 2 speaker assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  11. CLEAR DTC


    1. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  12. CHECK FOR DTC


    1. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    A

    END

    B

  13. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

      Tech Tips

      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

  14. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Tech Tips

      Click here

    2. Inspect the rear speaker assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  15. CLEAR DTC


    1. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  16. CHECK FOR DTC


    1. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    A

    END

    B

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here