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

  • DCM (telematics transceiver)*1

  • Stereo component amplifier assembly

WIRING DIAGRAM

A011TZXE02
A011SCIE02

INSPECTION PROCEDURE

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR

    1. Disconnect the connectors from the stereo component amplifier assembly, DCM (telematics transceiver)*1 and speakers.

      • *1: w/ Manual (SOS) Switch

    2. 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

    3. w/ Manual (SOS) Switch

      Measure the resistance between the DCM (telematics transceiver) and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I135-5 (SPO+) - Body ground Always 10 kΩ or higher
      I135-6 (SPO-) - Body ground Always 10 kΩ or higher
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

    1. Resistance check

      A011SULE40

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        J5-1 (+) - J5-2 (-) Always 4.6 to 6.6 Ω
        K5-1 (+) - K5-2 (-) Always 4.6 to 6.6 Ω
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 1 Speaker Assembly)
    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

    1. Resistance check

      A011RVRE15

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I84-4 - I84-3 Always 3.4 to 5.2 Ω
        I2-4 - I2-3 Always 3.4 to 5.2 Ω
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 2 Speaker Assembly)
    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY

    1. Resistance check

      A011QX8E10

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I60-1 - I60-2 Always 6.8 to 10.2 Ω
        Text in Illustration
        *a

        Component without harness connected

        (Front No. 3 Speaker Assembly)
    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT REAR NO. 2 SPEAKER ASSEMBLY

    1. Resistance check

      A011QX8E11

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        O19-1 - O19-2 Always 6.8 to 10.2 Ω
        O20-1 - O20-2 Always 6.8 to 10.2 Ω
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Rear No. 2 Speaker Assembly)
    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT REAR SPEAKER ASSEMBLY

    1. Resistance check

      A011SULE16

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        O22-1 - O22-2 Always 4.8 to 6.8 Ω
        Text in Illustration
        *a

        Component without harness connected

        (Rear Speaker Assembly)

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

      Result
      Condition Proceed to
      OK (w/ Manual (SOS) Switch) A
      OK (w/o Manual (SOS) Switch) B
      NG C
    B

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    C

    REPLACE REAR SPEAKER ASSEMBLY Click here

    A

  7. INSPECT DCM (TELEMATICS TRANSCEIVER)

    1. Resistance check

      A011SKWE15

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I135-2 (SPI+) - I135-5 (SPO+) Always Below 1 Ω
        I135-3 (SPI-) - I135-6 (SPO-) Always Below 1 Ω
        I135-2 (SPI+) - I135-3 (SPI-) Always 10 kΩ or higher
        I135-5 (SPO+) - I135-6 (SPO-) Always 10 kΩ or higher
        I135-2 (SPI+) - Body ground Always 10 kΩ or higher
        I135-3 (SPI-) - Body ground Always 10 kΩ or higher
        Text in Illustration
        *a

        Component without harness connected

        (DCM (Telematics Transceiver))
    NG

    REPLACE DCM (TELEMATICS TRANSCEIVER) Click here

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here