NAVIGATION SYSTEM, Diagnostic DTC:B15C3

DTC Code DTC Name
B15C3 Speaker Output Short

DESCRIPTION

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

In addition, the radio receiver assembly detects a malfunction via the stereo component amplifier assembly.

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

  • Stereo component amplifier assembly

WIRING DIAGRAM

B004C5SE03
B0049X2E03
*a No. 2 Speaker with Box Assembly LH
*b No. 2 Speaker with Box Assembly RH
*c No. 3 Speaker with Box Assembly
*d Stereo Component Amplifier Assembly

CAUTION / NOTICE / HINT

Tech Tips

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

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

      *3: for 13 Speakers


    1. Disconnect the X49 stereo component amplifier assembly connector.

    2. Disconnect the Q5*1 and/or Q6*2 front No. 1 speaker assembly connector.

    3. Disconnect the S1*1 and/or R1*2 No. 1 speaker with box assembly connector.

    4. Disconnect the X41*1 and/or X40*2 No. 2 speaker with box assembly connector.

    5. Disconnect the Q7 front No. 2 speaker assembly connector.

    6. Disconnect the X11 No. 3 speaker with box assembly connector.

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

      Standard Resistance
      for LH Side:
      Tester Connection Condition Specified Condition
      Q5-2 (+) - X49-12 (FL+) Always Below 1 Ω
      Q5-1 (-) - X49-27 (FL-) Always Below 1 Ω
      Q5-4 (+) - X49-11 (TWL+)*3 Always Below 1 Ω
      Q5-3 (-) - X49-26 (TWL-)*3 Always Below 1 Ω
      S1-2 (WF+) - X49-4 (WFL+) Always Below 1 Ω
      S1-1 (WF-) - X49-19 (WFL-) Always Below 1 Ω
      X41-2 (+) - X49-8 (SL+) Always Below 1 Ω
      X41-1 (-) - X49-23 (SL-) Always Below 1 Ω
      Q5-2 (+) - Body ground Always 10 kΩ or higher
      Q5-1 (-) - Body ground Always 10 kΩ or higher
      Q5-4 (+) - Body ground*3 Always 10 kΩ or higher
      Q5-3 (-) - Body ground*3 Always 10 kΩ or higher
      S1-2 (WF+) - Body ground Always 10 kΩ or higher
      S1-1 (WF-) - Body ground Always 10 kΩ or higher
      X41-2 (+) - Body ground Always 10 kΩ or higher
      X41-1 (-) - Body ground Always 10 kΩ or higher
      for RH Side:
      Tester Connection Condition Specified Condition
      Q6-2 (+) - X49-13 (FR+) Always Below 1 Ω
      Q6-1 (-) - X49-28 (FR-) Always Below 1 Ω
      Q6-4 (+) - X49-14 (TWR+)*3 Always Below 1 Ω
      Q6-3 (-) - X49-29 (TWR-)*3 Always Below 1 Ω
      R1-2 (WF+) - X49-5 (WFR+) Always Below 1 Ω
      R1-1 (WF-) - X49-20 (WFR-) Always Below 1 Ω
      X40-2 (+) - X49-9 (SR+) Always Below 1 Ω
      X40-1 (-) - X49-24 (SR-) Always Below 1 Ω
      Q6-2 (+) - Body ground Always 10 kΩ or higher
      Q6-1 (-) - Body ground Always 10 kΩ or higher
      Q6-4 (+) - Body ground*3 Always 10 kΩ or higher
      Q6-3 (-) - Body ground*3 Always 10 kΩ or higher
      R1-2 (WF+) - Body ground Always 10 kΩ or higher
      R1-1 (WF-) - Body ground Always 10 kΩ or higher
      X40-2 (+) - Body ground Always 10 kΩ or higher
      X40-1 (-) - Body ground Always 10 kΩ or higher
      for Center Side:
      Tester Connection Condition Specified Condition
      Q7-4 (CTR+) - X49-10 (MR+)*3 Always Below 1 Ω
      Q7-3 (CTR-) - X49-25 (MR-)*3 Always Below 1 Ω
      Q7-2 (+) - X49-7 (CTR+) Always Below 1 Ω
      Q7-1 (-) - X49-22 (CTR-) Always Below 1 Ω
      X11-2 (WF1+) - X49-6 (WF1+) Always Below 1 Ω
      X11-1 (WF1-) - X49-21 (WF1-) Always Below 1 Ω
      Q7-4 (CTR+) - Body ground*3 Always 10 kΩ or higher
      Q7-3 (CTR-) - Body ground*3 Always 10 kΩ or higher
      Q7-2 (+) - Body ground Always 10 kΩ or higher
      Q7-1 (-) - Body ground Always 10 kΩ or higher
      X11-2 (WF1+) - Body ground Always 10 kΩ or higher
      X11-1 (WF1-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      for 12 Speakers A
      for 13 Speakers B

    B

    INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    A

  4. INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY


    1. Remove the No. 1 speaker with box assembly.

      Click here

    2. Inspect the No. 1 speaker with box assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    OK

  5. INSPECT NO. 3 SPEAKER WITH BOX ASSEMBLY


    1. Remove the No. 3 speaker with box assembly.

      Click here

    2. Inspect the No. 3 speaker with box assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 3 SPEAKER WITH BOX ASSEMBLY Click here

    OK

  6. 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
      Result Proceed to
      OK A
      NG B

    B

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    A

  7. CHECK FRONT NO. 1 SPEAKER ASSEMBLY


    1. Replace the front No. 1 speaker assembly with a new or known good one.

      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. 1 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  8. CHECK NO. 2 SPEAKER WITH BOX ASSEMBLY


    1. Replace the No. 2 speaker with box assembly with a new or known good one.

      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 (NO. 2 SPEAKER WITH BOX ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

  9. INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY


    1. Remove the No. 1 speaker with box assembly.

      Click here

    2. Inspect the No. 1 speaker with box assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    OK

  10. INSPECT NO. 3 SPEAKER WITH BOX ASSEMBLY


    1. Remove the No. 3 speaker with box assembly.

      Click here

    2. Inspect the No. 3 speaker with box assembly.

      Click here

      Result
      Result Proceed to
      OK A
      NG B

    B

    REPLACE NO. 3 SPEAKER WITH BOX ASSEMBLY Click here

    A

  11. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


    1. Replace the front No. 2 speaker assembly with a new or known good one.

      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

  12. CHECK FRONT NO. 1 SPEAKER ASSEMBLY


    1. Replace the front No. 1 speaker assembly with a new or known good one.

      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. 1 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  13. CHECK NO. 2 SPEAKER WITH BOX ASSEMBLY


    1. Replace the No. 2 speaker with box assembly with a new or known good one.

      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 (NO. 2 SPEAKER WITH BOX ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here