NAVIGATION SYSTEM (for Built-in Memory), Diagnostic DTC:B15C3

DTC Code DTC Name
B15C3 Speaker Output Short

DESCRIPTION

This DTC is stored when a malfunction occurs in the speakers.

DTC Code DTC Detection Condition Trouble Area
B15C3 A short is detected in the speaker output circuit.

  • Speakers

  • Harness or connector

  • Stereo component amplifier assembly

  • Navigation receiver assembly

WIRING DIAGRAM

A01DN16E02
A01DR5KE02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      No DTCs are output.

    NG

    CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)


    • *1: for RH Side

    • *2: for LH Side


    1. Disconnect the J4*1 and/or K3*2 front No. 1 speaker assembly connector.

    2. Disconnect the H10*1 and/or H13*2 front No. 2 speaker assembly connector.

    3. Disconnect the H21*1 and/or H22*2 front No. 3 speaker assembly connector.

    4. Disconnect the H14 front No. 4 speaker assembly connector.

    5. Disconnect the L1*1 and/or M1*2 rear speaker set connector.

    6. Disconnect the L3*1 and/or M3*2 rear No. 2 speaker assembly connector.

    7. Disconnect the Q15*1 and/or R13*2 rear header speaker assembly connector.

    8. Disconnect the R24 No. 1 speaker with box assembly connector.

    9. Disconnect the H65 and H66 stereo component amplifier assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H65-4 (FR+) - H21-1 (TWR+)*1 Always Below 1 Ω
      H65-10 (FR-) - H21-2 (TWR-)*1 Always Below 1 Ω
      H21-3 (+) - H10-2*1 Always Below 1 Ω
      H21-4 (-) - H10-1*1 Always Below 1 Ω
      H66-10 (WFR+) - J4-1*1 Always Below 1 Ω
      H66-9 (WFR-) - J4-2*1 Always Below 1 Ω
      H65-3 (FL+) - H22-1 (TWL+)*2 Always Below 1 Ω
      H65-9 (FL-) - H22-2 (TWL-)*2 Always Below 1 Ω
      H22-3 (+) - H13-2*2 Always Below 1 Ω
      H22-4 (-) - H13-1*2 Always Below 1 Ω
      H65-1 (WF1+) - R24-1 (WF1+) Always Below 1 Ω
      H65-5 (WF1-) - R24-3 (WF1-) Always Below 1 Ω
      H65-2 (WF2+) - R24-2 (WF2+) Always Below 1 Ω
      H65-6 (WF2-) - R24-4 (WF2-) Always Below 1 Ω
      H66-2 (MR+) - Q15-2*1 Always Below 1 Ω
      H66-7 (MR-) - Q15-1*1 Always Below 1 Ω
      H66-3 (WFL+) - K3-1*2 Always Below 1 Ω
      H66-8 (WFL-) - K3-2*2 Always Below 1 Ω
      H66-5 (RR+) - L3-1 (+TW)*1 Always Below 1 Ω
      H66-12 (RR-) - L3-2 (-TW)*1 Always Below 1 Ω
      L3-3 (+) - L1-1*1 Always Below 1 Ω
      L3-4 (-) - L1-2*1 Always Below 1 Ω
      H66-4 (RL+) - M3-1 (+TW)*2 Always Below 1 Ω
      H66-11 (RL-) - M3-2 (-TW)*2 Always Below 1 Ω
      M3-3 (+) - M1-1*2 Always Below 1 Ω
      M3-4 (-) - M1-2*2 Always Below 1 Ω
      H66-1 (ML+) - R13-2*2 Always Below 1 Ω
      H66-6 (ML-) - R13-1*2 Always Below 1 Ω
      H65-8 (CTR+) - H14-2 Always Below 1 Ω
      H66-7 (CTR-) - H14-1 Always Below 1 Ω
      H65-4 (FR+) - Body ground*1 Always 10 kΩ or higher
      H65-10 (FR-) - Body ground*1 Always 10 kΩ or higher
      H21-3 (+) - Body ground*1 Always 10 kΩ or higher
      H21-4 (-) - Body ground*1 Always 10 kΩ or higher
      H66-10 (WFR+) - Body ground*1 Always 10 kΩ or higher
      H66-9 (WFR-) - Body ground*1 Always 10 kΩ or higher
      H65-3 (FL+) - Body ground*2 Always 10 kΩ or higher
      H65-9 (FL-) - Body ground*2 Always 10 kΩ or higher
      H22-3 (+) - Body ground*2 Always 10 kΩ or higher
      H22-4 (-) - Body ground*2 Always 10 kΩ or higher
      H65-1 (WF1+) - Body ground Always 10 kΩ or higher
      H65-5 (WF1-) - Body ground Always 10 kΩ or higher
      H65-2 (WF2+) - Body ground Always 10 kΩ or higher
      H65-6 (WF2-) - Body ground Always 10 kΩ or higher
      H66-2 (MR+) - Body ground*1 Always 10 kΩ or higher
      H66-7 (MR-) - Body ground*1 Always 10 kΩ or higher
      H66-3 (WFL+) - Body ground*2 Always 10 kΩ or higher
      H66-8 (WFL-) - Body ground*2 Always 10 kΩ or higher
      H66-5 (RR+) - Body ground*1 Always 10 kΩ or higher
      H66-12 (RR-) - Body ground*1 Always 10 kΩ or higher
      L3-3 (+) - Body ground*1 Always 10 kΩ or higher
      L3-4 (-) - Body ground*1 Always 10 kΩ or higher
      H66-4 (RL+) - Body ground*2 Always 10 kΩ or higher
      H66-11 (RL-) - Body ground*2 Always 10 kΩ or higher
      M3-3 (+) - Body ground*2 Always 10 kΩ or higher
      M3-4 (-) - Body ground*2 Always 10 kΩ or higher
      H66-1 (ML+) - Body ground*2 Always 10 kΩ or higher
      H66-6 (ML-) - Body ground*2 Always 10 kΩ or higher
      H65-8 (CTR+) - Body ground Always 10 kΩ or higher
      H66-7 (CTR-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


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

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


    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


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

    2. Inspect the front No. 2 speaker assembly Click here.


    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  5. CHECK FRONT NO. 3 SPEAKER ASSEMBLY


    1. Replace the front No. 3 speaker assembly with a known good one Click here.

    2. Check that the malfunction disappears.

      Note


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

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

      OK
      Malfunction disappears.

    NG

    CHECK FRONT NO. 4 SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

  6. CHECK FRONT NO. 4 SPEAKER ASSEMBLY


    1. Replace the front No. 4 speaker assembly with a known good one Click here.

    2. Check that the malfunction disappears.

      OK
      Malfunction disappears.

    NG

    INSPECT REAR SPEAKER SET Click here

    OK

    END (FRONT NO. 4 SPEAKER ASSEMBLY IS DEFECTIVE)

  7. INSPECT REAR SPEAKER SET


    1. Remove the rear speaker set with a known good one Click here.

    2. Inspect the rear speaker set with a known good one Click here.


    NG

    REPLACE REAR SPEAKER SET Click here

    OK

  8. CHECK REAR NO. 2 SPEAKER ASSEMBLY


    1. Replace the rear No. 2 speaker assembly with a known good one Click here.

    2. Check that the malfunction disappears.

      Note


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

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

      OK
      Malfunction disappears.

    NG

    CHECK REAR HEADER SPEAKER ASSEMBLY Click here

    OK

    END (REAR NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

  9. CHECK REAR HEADER SPEAKER ASSEMBLY


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

    2. Check that the malfunction disappears.

      Note


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

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

      OK
      Malfunction disappears.

    NG

    INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    OK

    END (REAR HEADER SPEAKER ASSEMBLY IS DEFECTIVE)

  10. INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY


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

    2. Inspect the No. 1 speaker with box assembly Click here.


    NG

    REPLACE NO. 1 SPEAKER WITH BOX ASSEMBLY Click here

    OK

  11. CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY


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

    2. Check that the malfunction disappears.

      OK
      Malfunction disappears.

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)