{"id":10291,"date":"2017-06-11T23:56:53","date_gmt":"2017-06-11T23:56:53","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm355989\/"},"modified":"2017-06-11T23:56:53","modified_gmt":"2017-06-11T23:56:53","slug":"sm355989","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sm355989\/","title":{"rendered":"NO SOUND OUTPUT IN ALL MODES [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]]"},"content":{"rendered":"
\n <\/p>\n
\n
\n
\n < Previous<\/a> Next ><\/a><\/p>\n

2016 – MX-5 – Body and Accessories<\/h2>\n

<\/a><\/p>\n

NO SOUND OUTPUT IN ALL MODES [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]]<\/h3>\n

<\/a><\/p>\n

Without Bose\u00ae<\/h4>\n\n\n\n\n\n\n
\n

Description<\/b><\/p>\n<\/td>\n

\n

NO SOUND OUTPUT IN ALL MODES<\/p>\n<\/td>\n<\/tr>\n

\n

Sound is not output from speakers even if any mode is selected<\/p>\n<\/td>\n<\/tr>\n

\n

Possible Causes<\/b><\/p>\n<\/td>\n

\n
    \n
  • \n

    Connector poor contact or terminal damage<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) ACC power supply circuit malfunction<\/p>\n<\/li>\n

      \n
    • \n

      Short to ground in wiring harness between battery and TAU terminal 2R<\/p>\n<\/li>\n

    • \n

      Open circuit in wiring harness between battery and TAU terminal 2R<\/p>\n<\/li>\n

    • \n

      MAIN 200A fuse malfunction<\/p>\n<\/li>\n

    • \n

      IG2 30A fuse malfunction<\/p>\n<\/li>\n

    • \n

      RADIO 7.5A fuse malfunction<\/p>\n<\/li>\n

    • \n

      ACC relay malfunction<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Open circuit in wiring harness between TAU terminal 2W and body ground<\/p>\n<\/li>\n

    • \n

      Speaker malfunction<\/p>\n<\/li>\n

        \n
      • \n

        Malfunction of the following speakers.<\/p>\n<\/li>\n

          \n
        • \n

          Door speaker (LH)<\/p>\n<\/li>\n

        • \n

          Door speaker (RH)<\/p>\n<\/li>\n

        • \n

          Tweeter (LH)<\/p>\n<\/li>\n

        • \n

          Tweeter (RH)<\/p>\n<\/li>\n

        • \n

          Headrest speaker (LH)<\/p>\n<\/li>\n

        • \n

          Headrest speaker (RH)<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Open circuit or short to ground in wiring harness between the following terminals:<\/p>\n<\/li>\n

              \n
            • \n

              TAU terminal 2A and door speaker (LH) terminal C<\/p>\n<\/li>\n

            • \n

              TAU terminal 2C and door speaker (LH) terminal B<\/p>\n<\/li>\n

            • \n

              TAU terminal 2D and door speaker (RH) terminal C<\/p>\n<\/li>\n

            • \n

              TAU terminal 2F and door speaker (RH) terminal B<\/p>\n<\/li>\n

            • \n

              TAU terminal 2A and tweeter (LH) terminal B<\/p>\n<\/li>\n

            • \n

              TAU terminal 2C and tweeter (LH) terminal A<\/p>\n<\/li>\n

            • \n

              TAU terminal 2D and tweeter (RH) terminal B<\/p>\n<\/li>\n

            • \n

              TAU terminal 2F and tweeter (RH) terminal A<\/p>\n<\/li>\n

            • \n

              TAU terminal 2X and headrest speaker (LH) terminal A<\/p>\n<\/li>\n

            • \n

              TAU terminal 2V and headrest speaker (LH) terminal B<\/p>\n<\/li>\n

            • \n

              TAU terminal 2U and headrest speaker (RH) terminal A<\/p>\n<\/li>\n

            • \n

              TAU terminal 2S and headrest speaker (RH) terminal B<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            • \n

              TAU malfunction<\/p>\n<\/li>\n

            • \n

              Connectivity master unit (CMU) malfunction<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

System Wiring Diagram<\/b><\/p>\n<\/td>\n

\n

<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n Diagnostic Procedure<\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Step<\/p>\n<\/td>\n

\n

Inspection<\/p>\n<\/td>\n

\n

Action<\/p>\n<\/td>\n<\/tr>\n

\n

1<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n
\n

No<\/p>\n<\/td>\n

\n
    \n
  • \n

    No sound is produced from all speakers<\/p>\n<\/li>\n

      \n
    • \n

      Go to the next step.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

        \n
      • \n

        No sound is produced from some speakers<\/p>\n<\/li>\n

          \n
        • \n

          Go to Step 7.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Repair or replace the connector, then go to Step 10.<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n
    \n INSPECT CMU CONNECTOR<\/b><\/p>\n
  • \n

    Disconnect the CMU connector.<\/p>\n<\/li>\n

  • \n

    Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.<\/p>\n<\/li>\n

  • \n

    Is the connector normal?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Repair or replace the connector, then go to Step 10.<\/p>\n<\/td>\n<\/tr>\n

\n

4<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Inspect the MAIN 200A fuse, IG2 30A fuse and RADIO 7.5A fuse.<\/p>\n

\n

5<\/p>\n<\/td>\n

\n
    \n INSPECT WIRING HARNESS BETWEEN TAU AND BODY GROUND FOR OPEN CIRCUIT<\/b><\/p>\n
  • \n

    Verify that the TAU connector is disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between the following terminals (vehicle wiring harness side) and body ground.<\/p>\n<\/li>\n

      \n
    • \n

      TAU terminal 2W<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Is there continuity?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n
    \n
  • \n

    Refer to the wiring diagram and verify if there is a common connector between the following terminals and body ground.<\/p>\n<\/li>\n

      \n
    • \n

      TAU terminal 2W<\/p>\n<\/li>\n

        \n If there is a common connector:<\/b><\/p>\n
      • \n

        Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.<\/p>\n<\/li>\n

      • \n

        Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

          \n Repair or replace the malfunctioning location.<\/b><\/p>\n
        • \n

          Repair or replace the wiring harness which has an open circuit.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Go to Step 10.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

6<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Troubleshooting completed (explain the contents of the servicing to the customer).<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Replace the CMU, then go to Step 10.<\/p>\n

(See CONNECTIVITY MASTER UNIT (CMU) REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

7<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Replace the malfunctioning speaker, then go to Step 10.<\/p>\n

(See DOOR SPEAKER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n

(See TWEETER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n

(See HEADREST SPEAKER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

8<\/p>\n<\/td>\n

\n
    \n INSPECT SPEAKER CIRCUIT FOR OPEN CIRCUIT<\/b><\/p>\n
  • \n

    Disconnect the connector of the malfunctioning speaker and the TAU connector.<\/p>\n<\/li>\n

  • \n

    Verify the continuity of the wiring harness between the following terminals (vehicle wiring harness side) of the speakers which are malfunctioning.<\/p>\n<\/li>\n

      \n
    • \n

      TAU terminal 2A and door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      TAU terminal 2C and door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2D and door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      TAU terminal 2F and door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2A and tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2C and tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2D and tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2F and tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2X and headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2V and headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2U and headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2S and headrest speaker (RH) terminal B<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Is there continuity?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n
    \n
  • \n

    Refer to the wiring diagram and verify if there is a common connector between the following terminals.<\/p>\n<\/li>\n

      \n
    • \n

      TAU terminal 2A and door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      TAU terminal 2C and door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2D and door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      TAU terminal 2F and door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2A and tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2C and tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2D and tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2F and tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2X and headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2V and headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2U and headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2S and headrest speaker (RH) terminal B<\/p>\n<\/li>\n<\/ul>\n

        \n If there is a common connector:<\/b><\/p>\n
      • \n

        Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.<\/p>\n<\/li>\n

      • \n

        Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

          \n If there is no common connector:<\/b><\/p>\n
        • \n

          Repair or replace the wiring harness which has an open circuit.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Go to the next step.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

9<\/p>\n<\/td>\n

\n
    \n INSPECT SPEAKER CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
  • \n

    Verify that the connector of the malfunctioning speaker and the TAU connector are disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between the following wiring harness terminals (vehicle wiring harness side) and body ground.<\/p>\n<\/li>\n

      \n
    • \n

      Door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      Door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      Door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Headrest speaker (RH) terminal B<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Is there continuity?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n
    \n
  • \n

    Refer to the wiring diagram and verify if there is a common connector between the following terminals.<\/p>\n<\/li>\n

      \n
    • \n

      TAU terminal 2A and door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      TAU terminal 2C and door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2D and door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      TAU terminal 2F and door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2A and tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2C and tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2D and tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2F and tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2X and headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2V and headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      TAU terminal 2U and headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      TAU terminal 2S and headrest speaker (RH) terminal B<\/p>\n<\/li>\n<\/ul>\n

        \n If there is a common connector:<\/b><\/p>\n
      • \n

        Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an short to ground to determine the malfunctioning location.<\/p>\n<\/li>\n

      • \n

        Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

          \n If there is no common connector:<\/b><\/p>\n
        • \n

          Repair or replace the wiring harness which has an short to ground.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Go to the next step.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

10<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Troubleshooting completed (explain the contents of the servicing to the customer).<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Verify the malfunction symptom in the symptom troubleshooting chart and perform the other applicable malfunction diagnosis.<\/p>\n

(See SYMPTOM TROUBLESHOOTING [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]]<\/a>.)<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n <\/a><\/p>\n

With Bose\u00ae<\/h4>\n\n\n\n\n\n\n
\n

Description<\/b><\/p>\n<\/td>\n

\n

NO SOUND OUTPUT IN ALL MODES<\/p>\n<\/td>\n<\/tr>\n

\n

Sound is not output from speakers even if any mode is selected<\/p>\n<\/td>\n<\/tr>\n

\n

Possible Causes<\/b><\/p>\n<\/td>\n

\n
    \n
  • \n

    Connector poor contact or terminal damage<\/p>\n<\/li>\n

  • \n

    Audio amplifier power supply circuit malfunction<\/p>\n<\/li>\n

      \n
    • \n

      Short circuit to ground in wiring harness between battery and audio amplifier terminal 3A<\/p>\n<\/li>\n

    • \n

      Open circuit in wiring harness between battery and audio amplifier terminal 3A<\/p>\n<\/li>\n

    • \n

      MAIN 200A fuse malfunction<\/p>\n<\/li>\n

    • \n

      CABIN+B 50A fuse malfunction<\/p>\n<\/li>\n

    • \n

      AUDIO1 25A fuse malfunction<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Open circuit in wiring harness between audio amplifier terminal 3B and body ground<\/p>\n<\/li>\n

    • \n

      Speaker malfunction<\/p>\n<\/li>\n

        \n
      • \n

        Malfunction of the following speakers.<\/p>\n<\/li>\n

          \n
        • \n

          Door speaker (LH)<\/p>\n<\/li>\n

        • \n

          Door speaker (RH)<\/p>\n<\/li>\n

        • \n

          Tweeter (LH)<\/p>\n<\/li>\n

        • \n

          Tweeter (RH)<\/p>\n<\/li>\n

        • \n

          Driver-side headrest speaker (LH)<\/p>\n<\/li>\n

        • \n

          Driver-side headrest speaker (RH)<\/p>\n<\/li>\n

        • \n

          Passenger-side headrest speaker (LH)<\/p>\n<\/li>\n

        • \n

          Passenger-side headrest speaker (RH)<\/p>\n<\/li>\n

        • \n

          Woofer<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Open circuit or short to ground in wiring harness between the following terminals:<\/p>\n<\/li>\n

              \n
            • \n

              Audio amplifier terminal 3C and door speaker (LH) terminal C<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3D and door speaker (LH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3H and door speaker (RH) terminal C<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3G and door speaker (RH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3C and tweeter (LH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3D and tweeter (LH) terminal A<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3H and tweeter (RH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3G and tweeter (RH) terminal A<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2M and driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2K and driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2O and driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2P and driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2E and passenger-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2C and passenger-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2G and passenger-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 2I and passenger-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3E and woofer terminal B<\/p>\n<\/li>\n

            • \n

              Audio amplifier terminal 3F and woofer terminal A<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            • \n

              Audio amplifier malfunction<\/p>\n<\/li>\n

            • \n

              Connectivity master unit (CMU) malfunction<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

System Wiring Diagram<\/b><\/p>\n<\/td>\n

\n

<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n Diagnostic Procedure<\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Step<\/p>\n<\/td>\n

\n

Inspection<\/p>\n<\/td>\n

\n

Action<\/p>\n<\/td>\n<\/tr>\n

\n

1<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n
\n

No<\/p>\n<\/td>\n

\n
    \n
  • \n

    No sound is produced from all speakers<\/p>\n<\/li>\n

      \n
    • \n

      Go to the next step.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

        \n
      • \n

        No sound is produced from some speakers<\/p>\n<\/li>\n

          \n
        • \n

          Go to Step 7.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Repair or replace the connector, then go to Step 10.<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n
    \n INSPECT CMU CONNECTOR<\/b><\/p>\n
  • \n

    Disconnect the CMU connector.<\/p>\n<\/li>\n

  • \n

    Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.<\/p>\n<\/li>\n

  • \n

    Is the connector normal?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Repair or replace the connector, then go to Step 10.<\/p>\n<\/td>\n<\/tr>\n

\n

4<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Inspect the MAIN 200A fuse and CABIN+B 50A fuse and AUDIO1 25A fuse.<\/p>\n

    \n
  • \n

    If the fuse is blown:<\/p>\n<\/li>\n

      \n
    • \n

      Refer to the wiring diagram and verify if there is a common connector between MAIN 200A fuse and the audio amplifier terminal 3A.<\/p>\n<\/li>\n

        \n If there is a common connector:<\/b><\/p>\n
      • \n

        Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.<\/p>\n<\/li>\n

      • \n

        Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

          \n If there is no common connector:<\/b><\/p>\n
        • \n

          Repair or replace the wiring harness which is shorted to ground.<\/p>\n<\/li>\n

        • \n

          Replace the fuse.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

        • \n

          If the fuse is damaged:<\/p>\n<\/li>\n

            \n
          • \n

            Replace the fuse.<\/p>\n<\/li>\n<\/ul>\n

          • \n

            If the fuse is normal:<\/p>\n<\/li>\n

              \n
            • \n

              Refer to the wiring diagram and verify if there is a common connector between battery and audio amplifier terminal 3A.<\/p>\n<\/li>\n

                \n If there is a common connector:<\/b><\/p>\n
              • \n

                Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.<\/p>\n<\/li>\n

              • \n

                Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

                  \n If there is no common connector:<\/b><\/p>\n
                • \n

                  Repair or replace the wiring harness which has an open circuit.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/ul>\n

                  Go to Step 10.<\/p>\n<\/td>\n<\/tr>\n

\n

5<\/p>\n<\/td>\n

\n
    \n INSPECT WIRING HARNESS BETWEEN AUDIO AMPLIFIER AND BODY GROUND FOR OPEN CIRCUIT<\/b><\/p>\n
  • \n

    Verify that the audio amplifier connector is disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between the following terminals (vehicle wiring harness side) and body ground.<\/p>\n<\/li>\n

      \n
    • \n

      Audio amplifier terminal 3B<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Is there continuity?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n
    \n
  • \n

    Refer to the wiring diagram and verify if there is a common connector between the following terminals and body ground.<\/p>\n<\/li>\n

      \n
    • \n

      Audio amplifier terminal 3B<\/p>\n<\/li>\n

        \n If there is a common connector:<\/b><\/p>\n
      • \n

        Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.<\/p>\n<\/li>\n

      • \n

        Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

          \n Repair or replace the malfunctioning location.<\/b><\/p>\n
        • \n

          Repair or replace the wiring harness which has an open circuit.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Go to Step 10.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

6<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Troubleshooting completed (explain the contents of the servicing to the customer).<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Replace the CMU, then go to Step 10.<\/p>\n

(See CONNECTIVITY MASTER UNIT (CMU) REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

7<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Replace the malfunctioning speaker, then go to Step 10.<\/p>\n

(See DOOR SPEAKER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n

(See TWEETER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n

(See WOOFER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n

(See HEADREST SPEAKER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

8<\/p>\n<\/td>\n

\n
    \n INSPECT SPEAKER CIRCUIT FOR OPEN CIRCUIT<\/b><\/p>\n
  • \n

    Disconnect the connector of the malfunctioning speaker and the audio amplifier connector.<\/p>\n<\/li>\n

  • \n

    Verify the continuity of the wiring harness between the following terminals (vehicle wiring harness side) of the speakers which are malfunctioning.<\/p>\n<\/li>\n

      \n
    • \n

      Audio amplifier terminal 3C and door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3D and door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3H and door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3G and door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3C and tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3D and tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3H and tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3G and tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2M and driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2K and driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2O and driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2P and driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2E and passenger-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2C and passenger-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2G and passenger-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2I and passenger-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3E and woofer terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3F and woofer terminal A<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Is there continuity?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n
    \n
  • \n

    Refer to the wiring diagram and verify if there is a common connector between the following terminals.<\/p>\n<\/li>\n

      \n
    • \n

      Audio amplifier terminal 3C and door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3D and door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3H and door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3G and door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3C and tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3D and tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3H and tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3G and tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2M and driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2K and driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2O and driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2P and driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2E and passenger-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2C and passenger-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2G and passenger-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2I and passenger-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3E and woofer terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3F and woofer terminal A<\/p>\n<\/li>\n<\/ul>\n

        \n If there is a common connector:<\/b><\/p>\n
      • \n

        Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.<\/p>\n<\/li>\n

      • \n

        Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

          \n If there is no common connector:<\/b><\/p>\n
        • \n

          Repair or replace the wiring harness which has an open circuit.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Go to Step 10.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

9<\/p>\n<\/td>\n

\n
    \n INSPECT SPEAKER CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
  • \n

    Disconnect the connector of the malfunctioning speaker and the audio amplifier connector.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between the following wiring harness terminals (vehicle wiring harness side) and body ground.<\/p>\n<\/li>\n

      \n
    • \n

      Door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      Door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      Door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Passenger-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Passenger-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Passenger-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Passenger-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Woofer terminal B<\/p>\n<\/li>\n

    • \n

      Woofer terminal A<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Is there continuity?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

Yes<\/p>\n<\/td>\n

\n
    \n
  • \n

    Refer to the wiring diagram and verify if there is a common connector between the following terminals.<\/p>\n<\/li>\n

      \n
    • \n

      Audio amplifier terminal 3C and door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3D and door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3H and door speaker (RH) terminal C<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3G and door speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3C and tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3D and tweeter (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3H and tweeter (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3G and tweeter (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2M and driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2K and driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2O and driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2P and driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2E and passenger-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2C and passenger-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2G and passenger-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2I and passenger-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3E and woofer terminal B<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 3F and woofer terminal A<\/p>\n<\/li>\n<\/ul>\n

        \n If there is a common connector:<\/b><\/p>\n
      • \n

        Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an short to ground to determine the malfunctioning location.<\/p>\n<\/li>\n

      • \n

        Repair or replace the malfunctioning location.<\/p>\n<\/li>\n<\/ul>\n

          \n If there is no common connector:<\/b><\/p>\n
        • \n

          Repair or replace the wiring harness which has an short to ground.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n

            \n
          • \n

            Go to the next step.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Go to the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

10<\/p>\n<\/td>\n

\n\n

Yes<\/p>\n<\/td>\n

\n

Troubleshooting completed (explain the contents of the servicing to the customer).<\/p>\n<\/td>\n<\/tr>\n

\n

No<\/p>\n<\/td>\n

\n

Verify the malfunction symptom in the symptom troubleshooting chart and perform the other applicable malfunction diagnosis.<\/p>\n

(See SYMPTOM TROUBLESHOOTING [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]]<\/a>.)<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n < Previous<\/a> Next ><\/a><\/p>\n

\n Back to Top<\/a>\n <\/div>\n
\n \u00a9 2014 Mazda North American Operations, U.S.A.<\/em>\n <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

< Previous Next > 2016 – MX-5 – Body and Accessories NO SOUND OUTPUT IN ALL MODES [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]] Without Bose\u00ae Description NO SOUND OUTPUT IN ALL MODES Sound is not output from speakers even if any mode is selected Possible Causes Connector poor contact or terminal damage Tuner and amp unit (TAU) ACC power supply circuit malfunction Short to ground in wiring harness between battery and TAU terminal 2R Open circuit […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10291","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/comments?post=10291"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10291\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=10291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}