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.

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

  • Harness or connector

  • Speaker

  • Telematics transceiver*1

  • Stereo component amplifier assembly

WIRING DIAGRAM

A003V40E03
A003VJ0E02

INSPECTION PROCEDURE

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.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    1. Disconnect the k1 stereo component amplifier assembly connector.

    2. Disconnect the H145 telematics transceiver connector (w/ Telematics Transceiver).

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

    4. Disconnect the I3 and I5 front No. 2 speaker assembly connectors.

    5. Disconnect the I4 and I6 front No. 3 speaker assembly connectors.

    6. Disconnect the I2 front No. 4 speaker assembly connector.

    7. Disconnect the Q10 and P14 rear No. 2 speaker assembly connectors.

    8. Disconnect the P15 No. 1 speaker assembly with box connector.

    9. 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
      k1-13 (FR+) - Body ground Always 10 kΩ or higher
      k1-28 (FR-) - Body ground Always 10 kΩ or higher
      k1-12 (FL+) - Body ground Always 10 kΩ or higher
      k1-27 (FL-) - Body ground Always 10 kΩ or higher
      k1-11 (MR+) - Body ground Always 10 kΩ or higher
      k1-26 (MR-) - Body ground Always 10 kΩ or higher
      k1-10 (ML+) - Body ground Always 10 kΩ or higher
      k1-25 (ML-) - Body ground Always 10 kΩ or higher
      k1-7 (CTR+) - Body ground Always 10 kΩ or higher
      k1-22 (CTR-) - Body ground Always 10 kΩ or higher
      k1-15 (RR+) - Body ground Always 10 kΩ or higher
      k1-30 (RR-) - Body ground Always 10 kΩ or higher
      k1-14 (RL+) - Body ground Always 10 kΩ or higher
      k1-29 (RL-) - Body ground Always 10 kΩ or higher
      k1-5 (WF2+) - Body ground Always 10 kΩ or higher
      k1-6 (WF1+) - Body ground Always 10 kΩ or higher

    10. Measure the resistance between the telematics transceiver and body ground to check for a short circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+)- Body ground Always 10 kΩ or higher
      H145-6 (SPO-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

    2. A003XY3E07
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 1 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 5 to 7 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

    2. A003ZD0E30
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 2 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 4.6 to 7 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly.

    2. A003V6JE06
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 10 kΩ or higher

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  5. REPLACE FRONT NO. 3 SPEAKER ASSEMBLY


    1. Replace the front No. 3 speaker assembly Click here.

    2. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

      Tech Tips


      • Connect all the connectors to the front No. 3 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both LH and RH sides.


    NG

    INSPECT FRONT NO. 4 SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 3 SPEAKER ASSEMBLY WAS DEFECTIVE)

  6. INSPECT FRONT NO. 4 SPEAKER ASSEMBLY


    1. Remove the front No. 4 speaker assembly.

    2. A003ZD0E31
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 4 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (-) - 2 (+) Always 4.6 to 7 Ω

    NG

    REPLACE FRONT NO. 4 SPEAKER ASSEMBLY Click here

    OK

  7. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly.

    2. A003ZD0E31
      Text in Illustration
      *a

      Component without harness connected

      (Rear No. 2 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (-) - 2 (+) Always 4.6 to 7 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  8. INSPECT NO. 1 SPEAKER ASSEMBLY WITH BOX


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

    2. A003ZDME03
      Text in Illustration
      *a

      Component without harness connected

      (No. 1 Speaker Assembly with Box)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (WF1+) - 4 (WF2+) Always 11.6 to 12.4 Ω

    3. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      OK (w/ Telematics Transceiver) A
      OK (w/o Telematics Transceiver) B
      NG C

    B

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    C

    REPLACE NO. 1 SPEAKER ASSEMBLY WITH BOX Click here

    A

  9. INSPECT TELEMATICS TRANSCEIVER


    1. Remove the telematics transceiver.

    2. A003WMKE30
      Text in Illustration
      *a

      Component without harness connected

      (Telematics Transceiver)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (SPI+) - 5 (SPO+) Always Below 1 Ω
      3 (SPI-) - 6 (SPO-) Always Below 1 Ω
      2 (SPI+) - 3 (SPI-) Always 10 kΩ or higher
      5 (SPO+) - 6 (SPO-) Always 10 kΩ or higher
      3 (SPI-) - Body ground Always 10 kΩ or higher
      2 (SPI+) - Body ground Always 10 kΩ or higher

    NG

    REPLACE TELEMATICS TRANSCEIVER Click here

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here