{"id":10151,"date":"2017-06-11T23:57:04","date_gmt":"2017-06-11T23:57:04","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm355848\/"},"modified":"2017-06-11T23:57:04","modified_gmt":"2017-06-11T23:57:04","slug":"sm355848","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sm355848\/","title":{"rendered":"DTC B1238:01 [CONNECTIVITY MASTER UNIT]"},"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

DTC B1238:01 [CONNECTIVITY MASTER UNIT]<\/h3>\n

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

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

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

\n

Speaker circuit malfunction<\/p>\n<\/td>\n<\/tr>\n

\n

Detection condition<\/b><\/p>\n<\/td>\n

\n
    \n
  • \n

    The connectivity master unit (CMU) detected a short to ground or short to power supply in the speaker circuit with the ignition switched ON (engine off or on).<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

Fail-safe<\/b><\/p>\n<\/td>\n

\n

Not applicable<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n
    \n
  • \n

    Tuner and amp unit (TAU) connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Door speaker (LH) connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Tweeter (LH) connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Short to ground in wiring harness between the following terminals:<\/p>\n<\/li>\n

      \n
    • \n

      Tuner and amp unit (TAU) terminal 2A\u2014Door speaker (LH) terminal C<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2C\u2014Door speaker (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2A\u2014Tweeter (LH) terminal B<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2C\u2014Tweeter (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Short to power supply in wiring harness between the following terminals:<\/p>\n<\/li>\n

        \n
      • \n

        Tuner and amp unit (TAU) terminal 2A\u2014Door speaker (LH) terminal C<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2C\u2014Door speaker (LH) terminal B<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2A\u2014Tweeter (LH) terminal B<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2C\u2014Tweeter (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

      • \n

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

      • \n

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

      • \n

        Door speaker (RH) connector or terminal malfunction<\/p>\n<\/li>\n

      • \n

        Tweeter (RH) connector or terminal malfunction<\/p>\n<\/li>\n

      • \n

        Short to ground in wiring harness between the following terminals:<\/p>\n<\/li>\n

          \n
        • \n

          Tuner and amp unit (TAU) terminal 2D\u2014Door speaker (RH) terminal C<\/p>\n<\/li>\n

        • \n

          Tuner and amp unit (TAU) terminal 2F\u2014Door speaker (RH) terminal B<\/p>\n<\/li>\n

        • \n

          Tuner and amp unit (TAU) terminal 2D\u2014Tweeter (RH) terminal B<\/p>\n<\/li>\n

        • \n

          Tuner and amp unit (TAU) terminal 2F\u2014Tweeter (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

        • \n

          Short to power supply in wiring harness between the following terminals:<\/p>\n<\/li>\n

            \n
          • \n

            Tuner and amp unit (TAU) terminal 2D\u2014Door speaker (RH) terminal C<\/p>\n<\/li>\n

          • \n

            Tuner and amp unit (TAU) terminal 2F\u2014Door speaker (RH) terminal B<\/p>\n<\/li>\n

          • \n

            Tuner and amp unit (TAU) terminal 2D\u2014Tweeter (RH) terminal B<\/p>\n<\/li>\n

          • \n

            Tuner and amp unit (TAU) terminal 2F\u2014Tweeter (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

          • \n

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

          • \n

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

          • \n

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

          • \n

            Short to ground in wiring harness between the following terminals:<\/p>\n<\/li>\n

              \n
            • \n

              Tuner and amp unit (TAU) terminal 2S\u2014Driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

            • \n

              Tuner and amp unit (TAU) terminal 2U\u2014Driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

            • \n

              Short to power supply in wiring harness between the following terminals:<\/p>\n<\/li>\n

                \n
              • \n

                Tuner and amp unit (TAU) terminal 2S\u2014Driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

              • \n

                Tuner and amp unit (TAU) terminal 2U\u2014Driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

              • \n

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

              • \n

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

              • \n

                Short to ground in wiring harness between the following terminals:<\/p>\n<\/li>\n

                  \n
                • \n

                  Tuner and amp unit (TAU) terminal 2V\u2014Driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

                • \n

                  Tuner and amp unit (TAU) terminal 2X\u2014Driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

                • \n

                  Short to power supply in wiring harness between the following terminals:<\/p>\n<\/li>\n

                    \n
                  • \n

                    Tuner and amp unit (TAU) terminal 2V\u2014Driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

                  • \n

                    Tuner and amp unit (TAU) terminal 2X\u2014Driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

                  • \n

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

                  • \n

                    Tuner and amp unit (TAU) malfunction<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\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\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\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 DETERMINE MALFUNCTIONING SPEAKER<\/b><\/p>\n\n

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

\n

Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

No audio produced from door speaker (LH) and tweeter (LH)<\/p>\n

    \n
  • \n

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

    No audio produced from door speaker (RH) and tweeter (RH)<\/p>\n

      \n
    • \n

      Go to Step 9.<\/p>\n<\/li>\n<\/ul>\n

      No sound produced from driver-side headrest speaker (LH)<\/p>\n

        \n
      • \n

        Go to Step 16.<\/p>\n<\/li>\n<\/ul>\n

        No audio produced from driver-side headrest speaker (RH)<\/p>\n

          \n
        • \n

          Go to Step 21.<\/p>\n<\/li>\n<\/ul>\n

          No audio produced from all speakers.<\/p>\n

            \n
          • \n

            Go to Step 26.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT TUNER AND AMP UNIT (TAU) CONNECTOR CONDITION<\/b><\/p>\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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT DOOR SPEAKER (LH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the door speaker (LH) 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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT TWEETER (LH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the tweeter (LH) 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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT DOOR SPEAKER (LH) CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the following connectors are disconnected:<\/p>\n<\/li>\n

      \n
    • \n

      Tuner and amp unit (TAU)<\/p>\n<\/li>\n

    • \n

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

    • \n

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

    • \n

      Inspect for continuity between the following terminals (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<\/ul>\n

      • \n

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

\n

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

\n

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2A\u2014Door speaker (LH) terminal C<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2C\u2014Door speaker (LH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2A\u2014Tweeter (LH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2C\u2014Tweeter (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to ground.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

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

\n INSPECT DOOR SPEAKER (LH) CIRCUIT FOR SHORT TO POWER SUPPLY<\/b><\/p>\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

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2A\u2014Door speaker (LH) terminal C<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2C\u2014Door speaker (LH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2A\u2014Tweeter (LH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2C\u2014Tweeter (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to power supply.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT DOOR SPEAKER (LH)<\/b><\/p>\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 door speaker (LH), then go to Step 27.<\/p>\n

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

\n

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

\n INSPECT TWEETER (LH)<\/b><\/p>\n\n

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

\n

Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

Replace the tweeter (LH), then go to Step 27.<\/p>\n

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

\n

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

\n INSPECT TUNER AND AMP UNIT (TAU) CONNECTOR CONDITION<\/b><\/p>\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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT DOOR SPEAKER (RH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the door speaker (RH) 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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

11<\/p>\n<\/td>\n

\n INSPECT TWEETER (RH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the tweeter (RH) 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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

12<\/p>\n<\/td>\n

\n INSPECT DOOR SPEAKER (RH) CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the following connectors are disconnected:<\/p>\n<\/li>\n

      \n
    • \n

      Tuner and amp unit (TAU)<\/p>\n<\/li>\n

    • \n

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

    • \n

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

    • \n

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

        \n
      • \n

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

      • \n

        Door 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

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2D\u2014Door speaker (RH) terminal C<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2F\u2014Door speaker (RH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2D\u2014Tweeter (RH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2F\u2014Tweeter (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to ground.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

13<\/p>\n<\/td>\n

\n INSPECT DOOR SPEAKER (RH) CIRCUIT FOR SHORT TO POWER SUPPLY<\/b><\/p>\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

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2D\u2014Door speaker (RH) terminal C<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2F\u2014Door speaker (RH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2D\u2014Tweeter (RH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2F\u2014Tweeter (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to power supply.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

14<\/p>\n<\/td>\n

\n INSPECT DOOR SPEAKER (RH)<\/b><\/p>\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 door speaker (RH), then go to Step 27.<\/p>\n

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

\n

15<\/p>\n<\/td>\n

\n INSPECT TWEETER (RH)<\/b><\/p>\n\n

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

\n

Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

Replace the tweeter (RH), then go to Step 27.<\/p>\n

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

\n

16<\/p>\n<\/td>\n

\n INSPECT TUNER AND AMP UNIT (TAU) CONNECTOR CONDITION<\/b><\/p>\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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

17<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (LH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the driver-side headrest speaker (LH) 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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

18<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (LH) CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the tuner and amp unit (TAU) and driver-side headrest speaker (LH) connectors are disconnected.<\/p>\n<\/li>\n

  • \n

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

      \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<\/ul>\n

    • \n

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

\n

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

\n

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2S\u2014Driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2U\u2014Driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to ground.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

19<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (LH) CIRCUIT FOR SHORT TO POWER SUPPLY<\/b><\/p>\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

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2S\u2014Driver-side headrest speaker (LH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2U\u2014Driver-side headrest speaker (LH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to power supply.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

20<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (LH)<\/b><\/p>\n\n

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

\n

Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

Replace the driver-side headrest speaker (LH), then go to Step 27.<\/p>\n

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

\n

21<\/p>\n<\/td>\n

\n INSPECT TUNER AND AMP UNIT (TAU) CONNECTOR CONDITION<\/b><\/p>\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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

22<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (RH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the driver-side headrest speaker (RH) 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 27.<\/p>\n<\/td>\n<\/tr>\n

\n

23<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (RH) CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the tuner and amp unit (TAU) and driver-side headrest speaker (RH) connectors are disconnected.<\/p>\n<\/li>\n

  • \n

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

      \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<\/ul>\n

    • \n

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

\n

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

\n

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2V\u2014Driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2X\u2014Driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to ground.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

24<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (RH) CIRCUIT FOR SHORT TO POWER SUPPLY<\/b><\/p>\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

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2V\u2014Driver-side headrest speaker (RH) terminal B<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2X\u2014Driver-side headrest speaker (RH) terminal A<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to power supply.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

25<\/p>\n<\/td>\n

\n INSPECT DRIVER-SIDE HEADREST SPEAKER (RH)<\/b><\/p>\n\n

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

\n

Go to Step 27.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

Replace the driver-side headrest speaker (RH), then go to Step 27.<\/p>\n

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

\n

26<\/p>\n<\/td>\n

\n INSPECT TUNER AND AMP UNIT (TAU) CONNECTOR CONDITION<\/b><\/p>\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 the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

27<\/p>\n<\/td>\n

\n VERIFY THAT REPAIRS HAVE BEEN COMPLETED<\/b><\/p>\n\n

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

\n

Repeat the inspection from Step 1.<\/p>\n

\n

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

\n

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

\n

28<\/p>\n<\/td>\n

\n VERIFY IF OTHER DTCs DISPLAYED<\/b><\/p>\n
    \n
  • \n

    Are any other DTCs displayed?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

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

\n

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.<\/p>\n

(See DTC TABLE [CONNECTIVITY MASTER UNIT]<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

DTC troubleshooting completed.<\/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
\n

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

\n

Audio amplifier circuit malfunction<\/p>\n<\/td>\n<\/tr>\n

\n

Detection condition<\/b><\/p>\n<\/td>\n

\n
    \n
  • \n

    The connectivity master unit (CMU) detected a short to ground or short to power supply in the audio amplifier circuit with the ignition switched ON (engine off or on).<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

Fail-safe<\/b><\/p>\n<\/td>\n

\n

Not applicable<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n
    \n
  • \n

    Audio amplifier connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Short to ground in wiring harness between the following terminals:<\/p>\n<\/li>\n

      \n
    • \n

      Tuner and amp unit (TAU) terminal 2A\u2014Audio amplifier terminal 1O<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2C\u2014Audio amplifier terminal 1P<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2D\u2014Audio amplifier terminal 1M<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2F\u2014Audio amplifier terminal 1N<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2J\u2014Audio amplifier terminal 2D<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2S\u2014Audio amplifier terminal 1K<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2T\u2014Audio amplifier terminal 2H<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2U\u2014Audio amplifier terminal 1L<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2V\u2014Audio amplifier terminal 1I<\/p>\n<\/li>\n

    • \n

      Tuner and amp unit (TAU) terminal 2X\u2014Audio amplifier terminal 1J<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Short to power supply in wiring harness between the following terminals:<\/p>\n<\/li>\n

        \n
      • \n

        Tuner and amp unit (TAU) terminal 2A\u2014Audio amplifier terminal 1O<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2C\u2014Audio amplifier terminal 1P<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2D\u2014Audio amplifier terminal 1M<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2F\u2014Audio amplifier terminal 1N<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2J\u2014Audio amplifier terminal 2D<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2S\u2014Audio amplifier terminal 1K<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2T\u2014Audio amplifier terminal 2H<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2U\u2014Audio amplifier terminal 1L<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2V\u2014Audio amplifier terminal 1I<\/p>\n<\/li>\n

      • \n

        Tuner and amp unit (TAU) terminal 2X\u2014Audio amplifier terminal 1J<\/p>\n<\/li>\n<\/ul>\n

      • \n

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

      • \n

        Tuner and amp unit (TAU) malfunction<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\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

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 INSPECT AUDIO AMPLIFIER CONNECTOR CONDITION<\/b><\/p>\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 6.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT TUNER AND AMP UNIT (TAU) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the tuner and amp unit (TAU) 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 6.<\/p>\n<\/td>\n<\/tr>\n

\n

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

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

    Verify that the audio amplifier and tuner and amp unit (TAU) connectors are disconnected.<\/p>\n<\/li>\n

  • \n

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

      \n
    • \n

      Audio amplifier terminal 1O<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 1P<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 1M<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 1N<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2D<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 1K<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 2H<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 1L<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 1I<\/p>\n<\/li>\n

    • \n

      Audio amplifier terminal 1J<\/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

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2A\u2014Audio amplifier terminal 1O<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2C\u2014Audio amplifier terminal 1P<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2D\u2014Audio amplifier terminal 1M<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2F\u2014Audio amplifier terminal 1N<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2J\u2014Audio amplifier terminal 2D<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2S\u2014Audio amplifier terminal 1K<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2T\u2014Audio amplifier terminal 2H<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2U\u2014Audio amplifier terminal 1L<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2V\u2014Audio amplifier terminal 1I<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2X\u2014Audio amplifier terminal 1J<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to ground.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 6.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

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

\n INSPECT AUDIO AMPLIFIER CIRCUIT FOR SHORT TO POWER SUPPLY<\/b><\/p>\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

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

    \n
  • \n

    Tuner and amp unit (TAU) terminal 2A\u2014Audio amplifier terminal 1O<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2C\u2014Audio amplifier terminal 1P<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2D\u2014Audio amplifier terminal 1M<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2F\u2014Audio amplifier terminal 1N<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2J\u2014Audio amplifier terminal 2D<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2S\u2014Audio amplifier terminal 1K<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2T\u2014Audio amplifier terminal 2H<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2U\u2014Audio amplifier terminal 1L<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2V\u2014Audio amplifier terminal 1I<\/p>\n<\/li>\n

  • \n

    Tuner and amp unit (TAU) terminal 2X\u2014Audio amplifier terminal 1J<\/p>\n<\/li>\n<\/ul>\n

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

      Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.<\/p>\n<\/li>\n

    • \n

      Repair or replace the malfunctioning part.<\/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 a short to power supply.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step 6.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n VERIFY IF MALFUNCTIONING LOCATION IS AUDIO AMPLIFIER DEPENDING ON REPEATABILITY<\/b><\/p>\n\n

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

\n

Replace the audio amplifier, then go to the next step.<\/p>\n

(See AUDIO AMPLIFIER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

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

\n VERIFY THAT REPAIRS HAVE BEEN COMPLETED<\/b><\/p>\n\n

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

\n

Repeat the inspection from Step 1.<\/p>\n

\n

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

\n

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

\n

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

\n VERIFY IF OTHER DTCs DISPLAYED<\/b><\/p>\n
    \n
  • \n

    Are any other DTCs displayed?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

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

\n

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.<\/p>\n

(See DTC TABLE [CONNECTIVITY MASTER UNIT]<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

DTC troubleshooting completed.<\/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 DTC B1238:01 [CONNECTIVITY MASTER UNIT] Without Bose\u00ae Description Speaker circuit malfunction Detection condition The connectivity master unit (CMU) detected a short to ground or short to power supply in the speaker circuit with the ignition switched ON (engine off or on). Fail-safe Not applicable Possible cause Tuner and amp unit (TAU) connector or terminal malfunction Door speaker (LH) connector or terminal malfunction Tweeter (LH) […]<\/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-10151","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10151","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=10151"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10151\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=10151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}