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

A003K80E96

Figure 2. for 10 Speakers

A003OP8E03

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 I97 and I98 radio and display receiver assembly connectors.

    2. Disconnect the G4 and G6 front No. 2 speaker assembly connectors.

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I97-1 (FR+) or G4-4 (TWR+) - Body ground Always 10 kΩ or higher
      I97-5 (FR-) or G4-2 (TWR-) - Body ground Always 10 kΩ or higher
      I97-2 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher
      I97-6 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher
      I98-1 (RR+) or L4-1 - Body ground Always 10 kΩ or higher
      I98-3 (RR-) or L4-2 - Body ground Always 10 kΩ or higher
      I98-2 (RL+) or M4-1 - Body ground Always 10 kΩ or higher
      I98-6 (RL-) or M4-2 - 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 J1 and K1 front No. 1 speaker assembly connectors.

    2. Disconnect the G4 and G6 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
      G4-3 (+) or J1-1 - Body ground Always 10 kΩ or higher
      G4-1 (-) or J1-2 - Body ground Always 10 kΩ or higher
      G6-3 (+) or K1-1 - Body ground Always 10 kΩ or higher
      G6-1 (-) or K1-2 - 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.

      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.

      Click here

    2. Inspect the front No. 2 speaker assembly.

      Click here

    3. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

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


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  6. 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

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

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


    1. Disconnect the I63 stereo component amplifier assembly connector.

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

    3. Disconnect the G5 and G7 front No. 2 speaker assembly connectors.

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I63-15 (FR+) or J1-1 - Body ground Always 10 kΩ or higher
      I63-30 (FR-) or J1-2 - Body ground Always 10 kΩ or higher
      I63-8 (FL+) or K1-1 - Body ground Always 10 kΩ or higher
      I63-23 (FL-) or K1-2- Body ground Always 10 kΩ or higher
      I63-13 (TWR+) or G5-4 - Body ground Always 10 kΩ or higher
      I63-28 (TWR-) or G5-3- Body ground Always 10 kΩ or higher
      I63-10 (TWL+) or G7-4 - Body ground Always 10 kΩ or higher
      I63-25 (TWL-) or G7-3- Body ground Always 10 kΩ or higher
      I63-11 (RR+) or L4-1 - Body ground Always 10 kΩ or higher
      I63-26 (RR-) or L4-2 - Body ground Always 10 kΩ or higher
      I63-12 (RL+) or M4-1 - Body ground Always 10 kΩ or higher
      I63-27 (RL-) or M4-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. 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

    3. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

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


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  9. 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

  10. 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

    END

    NG

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here