NAVIGATION SYSTEM (for Navigation Receiver 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. DTC Detection Condition Trouble Area
B15C3 A short is detected in the speaker output circuit

  • Harness or connector

  • Speaker

  • Navigation receiver assembly*1

  • Stereo component amplifier assembly*2

WIRING DIAGRAM


  1. for TMC Made

    B000L8HE06

  2. for TMMK Made

    B000H44E01
    B000JASE18

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for TMC Made A
      for TMMK Made B

    B

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

    A

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


    1. Disconnect the I64 and I65 navigation receiver assembly connectors.

    2. Disconnect the I83 and I1 front No. 2 speaker assembly connectors.

    3. Disconnect the O18 and O21 rear speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I64-1 (FR+) - Body ground Always 10 kΩ or higher
      I64-5 (FR-) - Body ground Always 10 kΩ or higher
      I64-2 (FL+) - Body ground Always 10 kΩ or higher
      I64-6 (FL-) - Body ground Always 10 kΩ or higher
      I65-1 (RR+) - Body ground Always 10 kΩ or higher
      I65-3 (RR-) - Body ground Always 10 kΩ or higher
      I65-2 (RL+) - Body ground Always 10 kΩ or higher
      I65-6 (RL-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the J5 and K5 front No. 1 speaker assembly connectors.

    2. Disconnect the I83 and I1 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
      I83-3 (+) - Body ground Always 10 kΩ or higher
      I83-1 (-) - Body ground Always 10 kΩ or higher
      I1-3 (+) - Body ground Always 10 kΩ or higher
      I1-1 (-) - Body ground Always 10 kΩ or higher

    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. B000NBXE03
      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 3.2 to 4.8 Ω

    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. B000NGGE58
      Text in Illustration
      *A for RH
      *B for LH
      *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
      4 (TWR+) - 2 (TWR-) Always 10 kΩ or higher
      3 (+) - 4 (TWR+) Always Below 1 Ω
      1 (-) - 2 (TWR-) Always Below 1 Ω
      4 (TWL+) - 2 (TWL-) Always 10 kΩ or higher
      3 (+) - 4 (TWL+) Always Below 1 Ω
      1 (-) - 2 (TWL-) Always Below 1 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  6. REPLACE 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.

    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. 2 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left front No. 2 speaker assembly is defective, inspect by interchanging the right one with the left one.

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


    NG

    INSPECT REAR SPEAKER ASSEMBLY Click here

    OK

    END

  7. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly Click here.

    2. B000NBXE03
      Text in Illustration
      *a

      Component without harness connected

      (Rear Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

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


    1. Disconnect the I68 stereo component amplifier assembly connector.

    2. Disconnect the J5 and K5 front No. 1 speaker assembly connectors.

    3. Disconnect the I84 and I2 front No. 2 speaker assembly connectors.

    4. Disconnect the I60 front No. 3 speaker assembly connector.

    5. Disconnect the O19 and O20 rear No. 2 speaker assembly connectors.

    6. Disconnect the O22 rear speaker assembly connector.

    7. 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
      I68-15 (FR+) - Body ground Always 10 kΩ or higher
      I68-30 (FR-) - Body ground Always 10 kΩ or higher
      I68-11 (FL+) - Body ground Always 10 kΩ or higher
      I68-26 (FL-) - Body ground Always 10 kΩ or higher
      I68-12 (TWR+) - Body ground Always 10 kΩ or higher
      I68-27 (TWR-) - Body ground Always 10 kΩ or higher
      I68-14 (TWL+) - Body ground Always 10 kΩ or higher
      I68-29 (TWL-) - Body ground Always 10 kΩ or higher
      I68-13 (CTR+) - Body ground Always 10 kΩ or higher
      I68-28 (CTR-) - Body ground Always 10 kΩ or higher
      I68-10 (SR+) - Body ground Always 10 kΩ or higher
      I68-25 (SR-) - Body ground Always 10 kΩ or higher
      I68-9 (SL+) - Body ground Always 10 kΩ or higher
      I68-24 (SL-) - Body ground Always 10 kΩ or higher
      I68-8 (WF1+) - Body ground Always 10 kΩ or higher
      I68-23 (WF1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly Click here.

    2. B000NBXE04
      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 4.6 to 6.6 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  10. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly Click here.

    2. B000N9GE50
      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
      4 - 3 Always 3.4 to 5.2 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  11. REPLACE 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.

    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. 2 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left front No. 2 speaker assembly is defective, inspect by interchanging the right one with the left one.

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


    NG

    INSPECT FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

    END

  12. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


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

    2. B000K7KE33
      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 6.8 to 10.2 Ω

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  13. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly Click here.

    2. B000K7KE33
      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 6.8 to 10.2 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  14. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly Click here.

    2. B000NBXE02
      Text in Illustration
      *a

      Component without harness connected

      (Rear Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 4.8 to 6.8 Ω

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here