{"id":10101,"date":"2017-06-11T23:57:09","date_gmt":"2017-06-11T23:57:09","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm355798\/"},"modified":"2017-06-11T23:57:09","modified_gmt":"2017-06-11T23:57:09","slug":"sm355798","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sm355798\/","title":{"rendered":"DTC B1098:11 [ELECTRICAL SUPPLY UNIT (ESU)]"},"content":{"rendered":"
\n <\/p>\n
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\n < Previous<\/a> Next ><\/a><\/p>\n

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

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DTC B1098:11 [ELECTRICAL SUPPLY UNIT (ESU)]<\/h3>\n\n\n\n\n\n\n\n
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Description<\/b><\/p>\n<\/td>\n

\n

Parking light (LH), front side marker light (LH), taillight (RH) or rear side marker light (RH) circuit malfunction<\/p>\n<\/td>\n<\/tr>\n

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

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    \n
  • \n

    The electrical supply unit (ESU) detects a short to ground in the parking light (LH), front side marker light (LH), taillight (RH) or rear side marker light (RH) circuit.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

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

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

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

\n
    \n
  • \n

    Electrical supply unit (ESU) connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Front side marker light bulb (LH) malfunction<\/p>\n<\/li>\n

  • \n

    Front side marker light (LH) connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Front combination light (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

      Front combination light (LH) terminal D\u2014Electrical supply unit (ESU) terminal 4I<\/p>\n<\/li>\n

    • \n

      Front side marker light (LH) terminal A\u2014Electrical supply unit (ESU) terminal 4I<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Front combination light (LH) malfunction<\/p>\n<\/li>\n

    • \n

      Rear side marker light bulb (RH) malfunction<\/p>\n<\/li>\n

    • \n

      Rear side marker light (RH) connector or terminal malfunction<\/p>\n<\/li>\n

    • \n

      Rear combination light (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

        Rear combination light (RH) terminal C\u2014Electrical supply unit (ESU) terminal 2A<\/p>\n<\/li>\n

      • \n

        Rear side marker light (RH) terminal A\u2014Electrical supply unit (ESU) terminal 2A<\/p>\n<\/li>\n<\/ul>\n

      • \n

        Rear combination light (RH) malfunction<\/p>\n<\/li>\n

      • \n

        Electrical supply unit (ESU) malfunction<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

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

\n

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

\n

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

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

\n DETERMINE MALFUNCTIONING LIGHT<\/b><\/p>\n
    \n
  • \n

    Operate the light switch to the TNS (parking lights) position.<\/p>\n<\/li>\n

  • \n

    Are there any lights among the following which are not illuminated?<\/p>\n<\/li>\n

      \n
    • \n

      Parking light (LH)<\/p>\n<\/li>\n

    • \n

      Front side marker light (LH)<\/p>\n<\/li>\n

    • \n

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

    • \n

      Rear side marker light (RH)<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/td>\n

\n

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

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If all lights do not turn on:<\/p>\n

    \n
  • \n

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

    If parking light (LH) and front side marker light (LH) does not turn on:<\/p>\n

      \n
    • \n

      Go to Step 3.<\/p>\n<\/li>\n<\/ul>\n

      If taillight (RH) and rear side marker light (RH) does not turn on:<\/p>\n

        \n
      • \n

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

\n

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

\n

Go to Step 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT ELECTRICAL SUPPLY UNIT (ESU) CONNECTOR CONDITION<\/b><\/p>\n\n

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

\n

Go to Step 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

Repair or replace the connector, then go to Step 15.<\/p>\n<\/td>\n<\/tr>\n

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

\n VISUALLY INSPECT FRONT SIDE MARKER LIGHT BULB (LH)<\/b><\/p>\n
    \n
  • \n

    Visually inspect the front side marker light bulb (LH).<\/p>\n<\/li>\n

  • \n

    Is the front side marker light bulb (LH) 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

Replace the front side marker light bulb (LH), then go to Step 15.<\/p>\n

(See FRONT SIDE MARKER LIGHT BULB REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT FRONT SIDE MARKER LIGHT (LH) 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 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT FRONT COMBINATION LIGHT (LH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the front combination light (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 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT ELECTRICAL SUPPLY UNIT (ESU) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the electrical supply unit (ESU) 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 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT PARKING LIGHT (LH) AND FRONT SIDE MARKER LIGHT (LH) CONTROL CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the front side marker light (LH), front combination light (LH) and electrical supply unit (ESU) 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

      Front combination light (LH) terminal D<\/p>\n<\/li>\n

    • \n

      Front side marker light (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 whether or not there is a common connector between following terminals:<\/p>\n

    \n
  • \n

    Front combination light (LH) terminal D\u2014Electrical supply unit (ESU) terminal 4I<\/p>\n<\/li>\n

  • \n

    Front side marker light (LH) terminal A\u2014Electrical supply unit (ESU) terminal 4I<\/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 15.<\/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

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

\n VERIFY IF MALFUNCTIONING LOCATION IS FRONT COMBINATION LIGHT (LH) DEPENDING ON REPEATABILITY<\/b><\/p>\n\n

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

\n

Replace the front combination light (LH), then go to Step 15.<\/p>\n

(See FRONT COMBINATION LIGHT REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

Go to Step 16.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n VISUALLY INSPECT REAR SIDE MARKER LIGHT BULB (RH)<\/b><\/p>\n
    \n
  • \n

    Visually inspect the rear side marker light bulb (RH).<\/p>\n<\/li>\n

  • \n

    Is the rear side marker light bulb (RH) normal?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

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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 rear side marker light bulb (RH), then go to Step 15.<\/p>\n

(See REAR SIDE MARKER LIGHT BULB REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT REAR SIDE MARKER LIGHT (RH) 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 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT REAR COMBINATION LIGHT (RH) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the rear combination light (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 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT ELECTRICAL SUPPLY UNIT (ESU) CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the electrical supply unit (ESU) 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 15.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT TAILLIGHT (RH) AND REAR SIDE MARKER LIGHT (RH) CONTROL CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the rear side marker light (RH), rear combination light (RH) and electrical supply unit (ESU) 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

      Rear combination light (RH) terminal C<\/p>\n<\/li>\n

    • \n

      Rear side marker light (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 whether or not there is a common connector between following terminals:<\/p>\n

    \n
  • \n

    Rear combination light (RH) terminal C\u2014Electrical supply unit (ESU) terminal 2A<\/p>\n<\/li>\n

  • \n

    Rear side marker light (RH) terminal A\u2014Electrical supply unit (ESU) terminal 2A<\/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 15.<\/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

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

\n VERIFY IF MALFUNCTIONING LOCATION IS REAR COMBINATION LIGHT (RH) DEPENDING ON REPEATABILITY<\/b><\/p>\n\n

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

\n

Replace the rear combination light (RH), then go to the next step.<\/p>\n

(See REAR COMBINATION LIGHT REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

Go to Step 16.<\/p>\n<\/td>\n<\/tr>\n

\n

15<\/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

16<\/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 [ELECTRICAL SUPPLY UNIT (ESU)]<\/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 B1098:11 [ELECTRICAL SUPPLY UNIT (ESU)] Description Parking light (LH), front side marker light (LH), taillight (RH) or rear side marker light (RH) circuit malfunction Detection condition The electrical supply unit (ESU) detects a short to ground in the parking light (LH), front side marker light (LH), taillight (RH) or rear side marker light (RH) circuit. Fail-safe Not applicable Possible cause Electrical supply unit […]<\/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-10101","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10101","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=10101"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10101\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=10101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}