{"id":10232,"date":"2017-06-11T23:56:57","date_gmt":"2017-06-11T23:56:57","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm355929\/"},"modified":"2017-06-11T23:56:57","modified_gmt":"2017-06-11T23:56:57","slug":"sm355929","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sm355929\/","title":{"rendered":"DTC B13C3:09 [START STOP UNIT]"},"content":{"rendered":"
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\n < Previous<\/a> Next ><\/a><\/p>\n

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

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

DTC B13C3:09 [START STOP UNIT]<\/h3>\n\n\n\n\n\n\n\n
\n

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

\n

LF control unit malfunction<\/p>\n<\/td>\n<\/tr>\n

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

\n
    \n
  • \n

    When any of the following conditions is met:<\/p>\n<\/li>\n

      \n
    • \n

      Start stop unit detects that the LF state signal of the LF control unit is low for 5 s or more<\/b>.<\/p>\n<\/li>\n

    • \n

      With the communication between the start stop unit and LF control unit being performed normally, there is no response from the LF control unit even though there is the signal transmission request from the start stop unit to the LF control unit, and the LF state signal becomes low.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/td>\n<\/tr>\n

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

\n
    \n
  • \n

    Inhibits the door lock\/unlock control using the advanced keyless entry system.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

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

\n
    \n
  • \n

    LF control unit connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Start stop unit connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Short to ground in wiring harness between start stop unit terminal 2H and LF control unit terminal G<\/p>\n<\/li>\n

  • \n

    Open circuit in wiring harness between start stop unit terminal 2H and LF control unit terminal G<\/p>\n<\/li>\n

  • \n

    LF control unit malfunction<\/p>\n<\/li>\n

  • \n

    Start stop unit 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

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 LF CONTROL UNIT 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

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

\n INSPECT START STOP UNIT CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the start stop unit 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 WIRING HARNESS BETWEEN START STOP UNIT AND LF CONTROL UNIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the start stop unit and LF control unit connectors are disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between LF control unit terminal G (wiring harness-side) and body ground.<\/p>\n<\/li>\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 start stop unit terminal 2H and LF control unit terminal G.<\/p>\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 WIRING HARNESS BETWEEN START STOP UNIT AND LF CONTROL UNIT FOR OPEN CIRCUIT<\/b><\/p>\n
    \n
  • \n

    Verify that the start stop unit and LF control unit connectors are disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between start stop unit terminal 2H (wiring harness-side) and LF control unit terminal G (wiring harness-side).<\/p>\n<\/li>\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 between start stop unit terminal 2H and LF control unit terminal G.<\/p>\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 Step 6.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT LF CONTROL UNIT<\/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 LF control unit, then go to the next step.<\/p>\n

(See LF CONTROL UNIT REMOVAL\/INSTALLATION<\/a>.)<\/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 [START STOP 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 B13C3:09 [START STOP UNIT] Description LF control unit malfunction Detection condition When any of the following conditions is met: Start stop unit detects that the LF state signal of the LF control unit is low for 5 s or more. With the communication between the start stop unit and LF control unit being performed normally, there is no response from the LF control […]<\/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-10232","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10232","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=10232"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10232\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=10232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}