NAVIGATION SYSTEM(for SD), 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. Detection Item DTC Detection Condition Trouble Area
B15C3 Speaker Output Short A short is detected in the speaker output circuit.

  • Speakers

  • Harness or connector

  • Stereo component amplifier assembly (for 11 Speakers)

  • Navigation receiver assembly

WIRING DIAGRAM

A01VA9AE07
A01V8L5E10
A01V6TWE21
for 11 Speakers
*a Rear Speaker Assembly RH
*b Rear Speaker Assembly LH
*c Woofer Box Speaker Assembly
*d Stereo Component Amplifier Assembly

CAUTION / NOTICE / HINT

Note

Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections.

Click here

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Check for DTCs.

      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 VEHICLE CONDITION


    1. Check the vehicle condition.

      Result
      Result Proceed to
      for 6 Speakers A
      for 11 Speakers B

    B

    CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for LH Side

    • *2: for RH Side


    1. Disconnect the G137 and G138 navigation receiver assembly connectors.

    2. Disconnect the J1*1 and/or I1*2 front No. 1 speaker assembly connector.

    3. Disconnect the H1*1 and/or H3*2 front No. 2 speaker assembly connector.

    4. Disconnect the L2*1 and/or K2*2 rear speaker assembly connector.

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      G137-2 (FL+) - H1-4 (TWL+) Always Below 1 Ω
      G137-6 (FL-) - H1-2 (TWL-) Always Below 1 Ω
      H1-3 (+) - J1-1 Always Below 1 Ω
      H1-1 (-) - J1-2 Always Below 1 Ω
      G138-2 (RL+) - L2-1 Always Below 1 Ω
      G138-6 (RL-) - L2-2 Always Below 1 Ω
      G137-2 (FL+) - Body ground Always 10 kΩ or higher
      G137-6 (FL-) - Body ground Always 10 kΩ or higher
      G138-2 (RL+) - Body ground Always 10 kΩ or higher
      G138-6 (RL-) - Body ground Always 10 kΩ or higher
      H1-3 (+) - Body ground Always 10 kΩ or higher
      H1-1 (-) - Body ground Always 10 kΩ or higher
      for RH Side
      Tester Connection Condition Specified Condition
      G137-1 (FR+) - H3-4 (TWR+) Always Below 1 Ω
      G137-5 (FR-) - H3-2 (TWR-) Always Below 1 Ω
      H3-3 (+) - I1-1 Always Below 1 Ω
      H3-1 (-) - I1-2 Always Below 1 Ω
      G138-1 (RR+) - K2-1 Always Below 1 Ω
      G138-3 (RR-) - K2-2 Always Below 1 Ω
      G137-1 (FR+) - Body ground Always 10 kΩ or higher
      G137-5 (FR-) - Body ground Always 10 kΩ or higher
      G138-1 (RR+) - Body ground Always 10 kΩ or higher
      G138-3 (RR-) - Body ground Always 10 kΩ or higher
      H3-3 (+) - Body ground Always 10 kΩ or higher
      H3-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly connector.

      Click here

    2. Inspect the front No. 1 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  5. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


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

      Click here

    2. Check for DTCs and check if the same DTCs is output.

      Click here

      Note


      • Connect all the connectors that were disconnected to the front No. 2 speaker assemblies.

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

      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  6. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly connector.

      Click here

    2. Inspect the rear speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

  7. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for LH Side

    • *2: for RH Side


    1. Disconnect the M33 stereo component amplifier assembly connector.

    2. Disconnect the J1*1 and/or I1*2 front No. 1 speaker assembly connector.

    3. Disconnect the H2*1 and/or H4*2 front No. 2 speaker assembly connector.

    4. Disconnect the L2*1 and/or K2*2 rear speaker assembly connector.

    5. Disconnect the M34 Woofer box speaker assembly connector.

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      M33-14 (FL+) - J1-1 Always Below 1 Ω
      M33-29 (FL-) - J1-2 Always Below 1 Ω
      M33-10 (TWL+) - H2-4(TWL+) Always Below 1 Ω
      M33-25 (TWL-) - H2-3(TWL-) Always Below 1 Ω
      M33-11 (RL+) - L2-1 Always Below 1 Ω
      M33-26 (RL-) - L2-2 Always Below 1 Ω
      M33-14 (FL+) - Body ground Always 10 kΩ or higher
      M33-29 (FL-) - Body ground Always 10 kΩ or higher
      M33-10 (TWL+) - Body ground Always 10 kΩ or higher
      M33-25 (TWL-) - Body ground Always 10 kΩ or higher
      M33-11 (RL+) - Body ground Always 10 kΩ or higher
      M33-26 (RL-) - Body ground Always 10 kΩ or higher
      for RH Side
      Tester Connection Condition Specified Condition
      M33-9 (FR+) - I1-1 Always Below 1 Ω
      M33-24 (FR-) - I1-2 Always Below 1 Ω
      M33-13 (TWR+) - H4-4(TWR+) Always Below 1 Ω
      M33-28 (TWR-) - H4-3(TWR-) Always Below 1 Ω
      M33-12 (RR+) - K2-1 Always Below 1 Ω
      M33-27 (RR-) - K2-2 Always Below 1 Ω
      M33-9 (FR+) - Body ground Always 10 kΩ or higher
      M33-24 (FR-) - Body ground Always 10 kΩ or higher
      M33-13 (TWR+) - Body ground Always 10 kΩ or higher
      M33-28 (TWR-) - Body ground Always 10 kΩ or higher
      M33-12 (RR+) - Body ground Always 10 kΩ or higher
      M33-27 (RR-) - Body ground Always 10 kΩ or higher
      for Woofer Box Speaker
      Tester Connection Condition Specified Condition
      M33-15 (WFR+) - M34-4 (WF+) Always Below 1 Ω
      M33-30 (WFR-) - M34-1 (WF-) Always Below 1 Ω
      M33-8 (WFL+) - M34-3 (WF+) Always Below 1 Ω
      M33-23 (WFL-) - M34-2 (WF-) Always Below 1 Ω
      M33-15 (WFR+) - Body ground Always 10 kΩ or higher
      M33-30 (WFR-) - Body ground Always 10 kΩ or higher
      M33-8 (WFL+) - Body ground Always 10 kΩ or higher
      M33-23 (WFL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly connector.

      Click here

    2. Inspect the front No. 1 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  9. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


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

      Click here

    2. Check for DTCs and check if the same DTCs is output.

      Click here

      Note


      • Connect all the connectors that were disconnected to the front No. 2 speaker assemblies.

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

      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  10. CHECK REAR SPEAKER ASSEMBLY


    1. Replace the rear speaker assembly with a known good one.

      Click here

    2. Check for DTCs and check if the same DTCs is output.

      Click here

      Note


      • Connect all the connectors that were disconnected to the rear speaker assemblies.

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

      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (REAR SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  11. INSPECT WOOFER BOX SPEAKER ASSEMBLY


    1. Remove the woofer box speaker assembly.

      Click here

    2. Inspect the woofer box speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE WOOFER BOX SPEAKER ASSEMBLY Click here

    OK

  12. CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. Replace the stereo component amplifier assembly with a known good one.

      Click here

    2. Check for DTCs and check if the same DTCs is output.

      Click here

      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here