NAVIGATION 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. 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*2

  • Radio and display receiver assembly*3

WIRING DIAGRAM

  1. for 6 Speakers

    A011YTFE13

  2. for 10 Speakers

    A011YERE07
    A011XM5E08

INSPECTION PROCEDURE

Note

After replacing the radio and display receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary (w/ SDARS System).

PROCEDURE

  1. CONFIRM MODEL

    Result
    Result Proceed to
    for 6 Speakers A
    for 10 Speakers B
    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR

    1. Disconnect the connectors from the radio and display receiver assembly and speakers.

    2. Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I152-1 (FR+) - Body ground Always 10 kΩ or higher
      I152-5 (FR-) - Body ground Always 10 kΩ or higher
      I152-2 (FL+) - Body ground Always 10 kΩ or higher
      I152-6 (FL-) - Body ground Always 10 kΩ or higher
      I153-1 (RR+) - Body ground Always 10 kΩ or higher
      I153-3 (RR-) - Body ground Always 10 kΩ or higher
      I153-2 (RL+) - Body ground Always 10 kΩ or higher
      I153-6 (RL-) - Body ground Always 10 kΩ or higher

    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

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

    1. Resistance check

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

        A011VG1E47
        Standard Resistance
        Tester Connection Condition Specified Condition
        J5-1 - J5-2 Always 3.2 to 4.8 Ω
        K5-1 - K5-2 Always 3.2 to 4.8 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

  4. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

    1. Resistance check

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

        A011XFRE17
        Standard Resistance
        Tester Connection Condition Specified Condition
        I83-2 (TWR-) - I83-4 (TWR+) Always 10 kΩ or higher
        I83-1 (-) - I83-2 (TWR-) Always Below 1 Ω
        I83-3 (+) - I83-4 (TWR+) Always Below 1 Ω
        I1-2 (TWL-) - I1-4 (TWL+) Always 10 kΩ or higher
        I1-1 (-) - I1-2 (TWL-) Always Below 1 Ω
        I1-3 (+) - I1-4 (TWL+) Always Below 1 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

  5. REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

    1. Check that the malfunction disappears when a known good speaker is installed Click here.

      OK
      Malfunction disappears.

      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 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 REAR SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE)

  6. INSPECT REAR SPEAKER ASSEMBLY

    1. Resistance check

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

        A011VG1E48
        Standard Resistance
        Tester Connection Condition Specified Condition
        O18-1 - O18-2 Always 3.2 to 4.8 Ω
        O21-1 - O21-2 Always 3.2 to 4.8 Ω
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Rear Speaker Assembly)
    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

  7. 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

  8. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

    1. Resistance check

      A011VG1E53

      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

  9. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

    1. Resistance check

      A011Z6EE24

      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

  10. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY

    1. Resistance check

      A011Z18E20

      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

  11. INSPECT REAR NO. 2 SPEAKER ASSEMBLY

    1. Resistance check

      A011Z18E21

      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 SPEAKER ASSEMBLY Click here

    OK

  12. INSPECT REAR SPEAKER ASSEMBLY

    1. Resistance check

      A011VG1E49

      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

  13. INSPECT DCM (TELEMATICS TRANSCEIVER)

    1. Resistance check

      A011YDRE20

      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