{"id":9286,"date":"2017-06-11T23:57:58","date_gmt":"2017-06-11T23:57:58","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm352959\/"},"modified":"2017-06-11T23:57:58","modified_gmt":"2017-06-11T23:57:58","slug":"sm352959","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/16ND\/sm352959\/","title":{"rendered":"DTC C1A90:12\/C1A90:16 [DSC HU\/CM]"},"content":{"rendered":"
\n <\/p>\n
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\n < Previous<\/a> Next ><\/a><\/p>\n

2016 – MX-5 – Brakes<\/h2>\n

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

DTC C1A90:12\/C1A90:16 [DSC HU\/CM]<\/h3>\n\n\n\n\n\n\n\n\n
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DTC<\/b><\/p>\n<\/td>\n

\n

C1A90:12<\/b><\/p>\n<\/td>\n

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ABS wheel-speed sensor power supply<\/b><\/p>\n<\/td>\n<\/tr>\n

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C1A90:16<\/b><\/p>\n<\/td>\n<\/tr>\n

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DETECTION CONDITION<\/b><\/p>\n<\/td>\n

\n
    \n
  • \n

    Malfunction detected in ABS wheel-speed sensor power supply voltage.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

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FAIL-SAFE FUNCTION<\/b><\/p>\n<\/td>\n

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POSSIBLE CAUSE<\/b><\/p>\n<\/td>\n

\n
    \n
  • \n

    Short to ground circuit in wiring harness between ABS wheel-speed sensor (LF) terminal B and DSC HU\/CM terminal S<\/p>\n<\/li>\n

  • \n

    Short to ground circuit in wiring harness between ABS wheel-speed sensor (RF) terminal B and DSC HU\/CM terminal J<\/p>\n<\/li>\n

  • \n

    Short to ground circuit in wiring harness between ABS wheel-speed sensor (LR) terminal A and DSC HU\/CM terminal R<\/p>\n<\/li>\n

  • \n

    Short to ground circuit in wiring harness between ABS wheel-speed sensor (RR) terminal A and DSC HU\/CM terminal M<\/p>\n<\/li>\n

  • \n

    Poor connection at each connector<\/p>\n<\/li>\n

  • \n

    DSC HU\/CM 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 <\/a><\/p>\n

Diagnostic Procedure<\/h4>\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

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

\n

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

\n INSPECT ABS WHEEL-SPEED SENSOR POWER CIRCUIT FOR SHORT TO GROUND CIRCUIT<\/b><\/p>\n
    \n
  • \n

    Disconnect the ABS wheel-speed sensor connector.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity as followings:<\/p>\n<\/li>\n

      \n
    • \n

      ABS wheel-speed sensor (LF) terminal B (wiring harness-side)\u2014body ground<\/p>\n<\/li>\n

    • \n

      ABS wheel-speed sensor (RF) terminal B (wiring harness-side)\u2014body ground<\/p>\n<\/li>\n

    • \n

      ABS wheel-speed sensor (LR) terminal A (wiring harness-side)\u2014body ground<\/p>\n<\/li>\n

    • \n

      ABS wheel-speed sensor (RR) terminal A (wiring harness-side)\u2014body ground<\/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 in the followings:<\/p>\n

    \n
  • \n

    ABS wheel-speed sensor (LF) terminal B\u2014DSC HU\/CM terminal S<\/p>\n<\/li>\n

  • \n

    ABS wheel-speed sensor (RF) terminal B\u2014DSC HU\/CM terminal J<\/p>\n<\/li>\n

  • \n

    ABS wheel-speed sensor (LR) terminal A\u2014DSC HU\/CM terminal R<\/p>\n<\/li>\n

  • \n

    ABS wheel-speed sensor (RR) terminal A\u2014DSC HU\/CM terminal M<\/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 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 a short to ground circuit.<\/p>\n<\/li>\n<\/ul>\n

        Go to Step3.<\/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 ABS WHEEL-SPEED SENSOR POWER CIRCUIT FOR OPEN CIRCUIT<\/b><\/p>\n
    \n
  • \n

    Disconnect the ABS wheel-speed sensor connector.<\/p>\n<\/li>\n

  • \n

    Disconnect the DSC HU\/CM connector.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity as followings:<\/p>\n<\/li>\n

      \n
    • \n

      ABS wheel-speed sensor (LF) terminal B (wiring harness-side)\u2014DSC HU\/CM terminal S (wiring harness-side)<\/p>\n<\/li>\n

    • \n

      ABS wheel-speed sensor (RF) terminal B (wiring harness-side)\u2014DSC HU\/CM terminal J (wiring harness-side)<\/p>\n<\/li>\n

    • \n

      ABS wheel-speed sensor (LR) terminal A (wiring harness-side)\u2014DSC HU\/CM terminal R (wiring harness-side)<\/p>\n<\/li>\n

    • \n

      ABS wheel-speed sensor (RR) terminal A (wiring harness-side)\u2014DSC HU\/CM terminal M (wiring harness-side)<\/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

Refer to the wiring diagram and verify whether or not there is a common connector in the followings:<\/p>\n

    \n
  • \n

    ABS wheel-speed sensor (LF) terminal B\u2014DSC HU\/CM terminal S<\/p>\n<\/li>\n

  • \n

    ABS wheel-speed sensor (RF) terminal B\u2014DSC HU\/CM terminal J<\/p>\n<\/li>\n

  • \n

    ABS wheel-speed sensor (LR) terminal A\u2014DSC HU\/CM terminal R<\/p>\n<\/li>\n

  • \n

    ABS wheel-speed sensor (RR) terminal A\u2014DSC HU\/CM terminal M<\/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 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

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

\n

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

\n VERIFY DTC TROUBLESHOOTING COMPLETED<\/b><\/p>\n\n

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

\n

Repeat the inspection from Step1.<\/p>\n

If the malfunction recurs, replace the DSC HU\/CM, then go to the next step.<\/p>\n

(See DSC HU\/CM REMOVAL\/INSTALLATION<\/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

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

\n VERIFY NO DTC IS PRESENT<\/b><\/p>\n
    \n
  • \n

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

\n

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

\n

Go to the applicable DTC inspection.<\/p>\n

(See DTC TABLE [DSC HU\/CM]<\/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

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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 – Brakes DTC C1A90:12\/C1A90:16 [DSC HU\/CM] DTC C1A90:12 ABS wheel-speed sensor power supply C1A90:16 DETECTION CONDITION Malfunction detected in ABS wheel-speed sensor power supply voltage. FAIL-SAFE FUNCTION Refer to \u201cFail-safe function table\u201d. (See DTC TABLE [DSC HU\/CM].) POSSIBLE CAUSE Short to ground circuit in wiring harness between ABS wheel-speed sensor (LF) terminal B and DSC HU\/CM terminal S Short to ground circuit in wiring harness between ABS wheel-speed […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-9286","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/pages\/9286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/comments?post=9286"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/pages\/9286\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/media?parent=9286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}