{"id":10139,"date":"2017-06-11T23:57:05","date_gmt":"2017-06-11T23:57:05","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm355836\/"},"modified":"2017-06-11T23:57:05","modified_gmt":"2017-06-11T23:57:05","slug":"sm355836","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sm355836\/","title":{"rendered":"DTC B108E:1C [CONNECTIVITY MASTER UNIT]"},"content":{"rendered":"
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\n < Previous<\/a> Next ><\/a><\/p>\n

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

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DTC B108E:1C [CONNECTIVITY MASTER UNIT]<\/h3>\n\n\n\n\n\n\n\n
\n

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

\n

Low power supply voltage input to center display<\/p>\n<\/td>\n<\/tr>\n

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

\n
    \n
  • \n

    The connectivity master unit (CMU) detected any of the following conditions for 5 s or more<\/b> with the ignition switched ON (engine off or on).<\/p>\n<\/li>\n

      \n
    • \n

      TFT LCD driver voltage 3.8 V or less<\/b><\/p>\n<\/li>\n

    • \n

      LED drive voltage 14.0 V or less<\/b><\/p>\n<\/li>\n

    • \n

      Touch panel IC voltage 3.9 V or less<\/b><\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n
    \n
  • \n

    Stops operation of the center display.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n
    \n
  • \n

    DTCs are stored in the PCM.<\/p>\n<\/li>\n

  • \n

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

  • \n

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

  • \n

    Center display connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Center display B+ power supply circuit malfunction<\/p>\n<\/li>\n

      \n
    • \n

      Short to ground in wiring harness between MAIN 200 A fuse and center display terminal 1H<\/p>\n<\/li>\n

    • \n

      INTERIOR 15 A fuse malfunction<\/p>\n<\/li>\n

    • \n

      ROOM 25 A fuse malfunction<\/p>\n<\/li>\n

    • \n

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

    • \n

      Open circuit in wiring harness between battery positive terminal and center display terminal 1H<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Center display ACC power supply circuit malfunction<\/p>\n<\/li>\n

        \n
      • \n

        Short to ground in wiring harness between MIRROR 7.5 A fuse and center display terminal 1G<\/p>\n<\/li>\n

      • \n

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

      • \n

        Open circuit in wiring harness between ACC relay terminal C and center display terminal 1G<\/p>\n<\/li>\n<\/ul>\n

      • \n

        Center display malfunction<\/p>\n<\/li>\n

      • \n

        Connectivity master unit (CMU) 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

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 VERIFY PCM DTCs<\/b><\/p>\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 [PCM (SKYACTIV-G 2.0)]<\/a>.)<\/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

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

\n INSPECT BATTERY<\/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

Recharge or replace the battery, then go to Step 8.<\/p>\n

(See BATTERY RECHARGING<\/a>.)<\/p>\n

(See BATTERY REMOVAL\/INSTALLATION [SKYACTIV-G 2.0]<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT GENERATOR<\/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 generator, then go to Step 8.<\/p>\n

(See GENERATOR REMOVAL\/INSTALLATION [SKYACTIV-G 2.0]<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT CENTER DISPLAY 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 8.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n VERIFY CENTER DISPLAY B+ POWER SUPPLY VOLTAGE<\/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

Inspect the INTERIOR 15 A fuse, ROOM 25 A fuse, and MAIN 200 A fuse.<\/p>\n

    \n
  • \n

    Any fuse is blown:<\/p>\n<\/li>\n

      \n
    • \n

      Refer to the wiring diagram and verify if there is a common connector between MAIN 200 A fuse and center display terminal 1H.<\/p>\n<\/li>\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

        • \n

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

        • \n

          Any fuse is damaged:<\/p>\n<\/li>\n

            \n
          • \n

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

          • \n

            All fuses are normal:<\/p>\n<\/li>\n

              \n
            • \n

              Refer to the wiring diagram and verify if there is a common connector between positive battery terminal and center display terminal 1H.<\/p>\n<\/li>\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 an open circuit.<\/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 an open circuit.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/ul>\n

                  Go to Step 8.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n VERIFY CENTER DISPLAY ACC POWER SUPPLY VOLTAGE<\/b><\/p>\n
    \n
  • \n

    Switch the ignition to ACC.<\/p>\n<\/li>\n

  • \n

    Measure the voltage at center display terminal 1G (wiring harness-side).<\/p>\n<\/li>\n

  • \n

    Is the voltage B+<\/b>?<\/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

Inspect the MIRROR 7.5 A 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 MIRROR 7.5 A fuse and center display terminal 1G.<\/p>\n<\/li>\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

        • \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 ACC relay terminal C and center display terminal 1G.<\/p>\n<\/li>\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 an open circuit.<\/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 an open circuit.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/ul>\n

                  Go to Step 8.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n VERIFY IF MALFUNCTIONING LOCATION IS CENTER DISPLAY DEPENDING ON REPEATABILITY<\/b><\/p>\n\n

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

\n

Replace the center display, then go to the next step.<\/p>\n

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

\n

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

\n

Go to Step 9.<\/p>\n<\/td>\n<\/tr>\n

\n

8<\/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

9<\/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

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\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 B108E:1C [CONNECTIVITY MASTER UNIT] Description Low power supply voltage input to center display Detection condition The connectivity master unit (CMU) detected any of the following conditions for 5 s or more with the ignition switched ON (engine off or on). TFT LCD driver voltage 3.8 V or less LED drive voltage 14.0 V or less Touch panel IC voltage 3.9 V or less […]<\/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-10139","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10139","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=10139"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10139\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=10139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}