AUDIO AND VISUAL 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

  • Speakers

  • Radio and display receiver assembly

WIRING DIAGRAM

B003P05E07

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

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

      Click here


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

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for LH Side

      *2: for RH Side


    1. Disconnect the G102 and G103 radio and display receiver assembly connectors.

    2. Disconnect the K4*1 and/or J3*2 front No. 1 speaker assembly connector.

    3. Disconnect the K7*1 and/or J6*2 front No. 2 speaker assembly connector.

    4. Disconnect the M2*1 and/or L2*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
      G102-2 (FL+) - K7-4 (TWL+) Always Below 1 Ω
      G102-6 (FL-) - K7-2 (TWL-) Always Below 1 Ω
      K7-3 (+) - K4-1 Always Below 1 Ω
      K7-1 (-) - K4-2 Always Below 1 Ω
      G103-2 (RL+) - M2-1 Always Below 1 Ω
      G103-6 (RL-) - M2-2 Always Below 1 Ω
      G102-2 (FL+) or K7-4 (TWL+) - Body ground Always 10 kΩ or higher
      G102-6 (FL-) or K7-2 (TWL-) - Body ground Always 10 kΩ or higher
      K7-3 (+) or K4-1 - Body ground Always 10 kΩ or higher
      K7-1 (-) or K4-2 - Body ground Always 10 kΩ or higher
      G103-2 (RL+) or M2-1 - Body ground Always 10 kΩ or higher
      G103-6 (RL-) or M2-2 - Body ground Always 10 kΩ or higher
      for RH Side
      Tester Connection Condition Specified Condition
      G102-1 (FR+) - J6-4 (TWR+) Always Below 1 Ω
      G102-5 (FR-) - J6-2 (TWR-) Always Below 1 Ω
      J6-3 (+) - J3-1 Always Below 1 Ω
      J6-1 (-) - J3-2 Always Below 1 Ω
      G103-1 (RR+) - L2-1 Always Below 1 Ω
      G103-3 (RR-) - L2-2 Always Below 1 Ω
      G102-1 (FR+) or J6-4 (TWR+) - Body ground Always 10 kΩ or higher
      G102-5 (FR-) or J6-2 (TWR-) - Body ground Always 10 kΩ or higher
      J6-3 (+) or J3-1 - Body ground Always 10 kΩ or higher
      J6-1 (-) or J3-2 - Body ground Always 10 kΩ or higher
      G103-1 (RR+) or L2-1 - Body ground Always 10 kΩ or higher
      G103-3 (RR-) or L2-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. 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

  4. 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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  5. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


    1. Replace the front No. 2 speaker assembly.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

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

      Click here


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

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here