{"id":10816,"date":"2017-06-11T23:56:47","date_gmt":"2017-06-11T23:56:47","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm361344\/"},"modified":"2017-06-11T23:56:47","modified_gmt":"2017-06-11T23:56:47","slug":"sm361344","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/16ND\/sm361344\/","title":{"rendered":"DTC U0401:00\/U0401:86 [EVP CONTROL UNIT]"},"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 U0401:00\/U0401:86 [EVP CONTROL UNIT]<\/h3>\n\n\n\n\n\n\n\n\n
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DTC<\/b><\/p>\n<\/td>\n

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U0401:00<\/b><\/p>\n<\/td>\n

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CAN communication: signal error from PCM<\/b><\/p>\n<\/td>\n<\/tr>\n

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U0401:86<\/b><\/p>\n<\/td>\n<\/tr>\n

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

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    \n
  • \n

    DTC U0401:00<\/p>\n<\/li>\n

      \n
    • \n

      Vacuum sensor 2 signal from the PCM is invalid or not within range for a continuous 1 s<\/b>.<\/p>\n<\/li>\n<\/ul>\n

    • \n

      DTC U0401:86<\/p>\n<\/li>\n

        \n
      • \n

        Engine speed signal error from the PCM continues for 5 s<\/b>.<\/p>\n<\/li>\n<\/ul>\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

    PCM malfunction<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

SYSTEM WIRING DIAGRAM<\/b><\/p>\n<\/td>\n

\n

\u2014<\/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

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 DTC<\/b><\/p>\n\n

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

\n

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

(See DTC TABLE [PCM (SKYACTIV-G 2.0)]<\/a>.)<\/p>\n

DTC troubleshooting completed, then go to the next step.<\/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 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 PCM, then go to the next step.<\/p>\n

(See PCM REMOVAL\/INSTALLATION [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

3<\/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

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

\n

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

(See DTC TABLE [EVP CONTROL 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

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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 U0401:00\/U0401:86 [EVP CONTROL UNIT] DTC U0401:00 CAN communication: signal error from PCM U0401:86 DETECTION CONDITION DTC U0401:00 Vacuum sensor 2 signal from the PCM is invalid or not within range for a continuous 1 s. DTC U0401:86 Engine speed signal error from the PCM continues for 5 s. FAIL-SAFE FUNCTION Refer to \u201cFail-safe function table\u201d. (See DTC TABLE [EVP CONTROL UNIT].) POSSIBLE CAUSE PCM malfunction […]<\/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-10816","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/pages\/10816","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=10816"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/pages\/10816\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/16ND\/wp-json\/wp\/v2\/media?parent=10816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}