{"id":10039,"date":"2017-06-11T23:57:17","date_gmt":"2017-06-11T23:57:17","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm355736\/"},"modified":"2017-06-11T23:57:17","modified_gmt":"2017-06-11T23:57:17","slug":"sm355736","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sm355736\/","title":{"rendered":"DTC B1048:7B [BCM]"},"content":{"rendered":"
\n <\/p>\n
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\n < Previous<\/a> Next ><\/a><\/p>\n

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

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

DTC B1048:7B [BCM]<\/h3>\n\n\n\n\n\n\n\n
\n

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

\n

Brake fluid level sensor circuit malfunction<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n
    \n
  • \n

    BCM detected that the brake fluid level is less than MIN with the ignition switched ON (engine off or on).<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

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

\n
    \n
  • \n

    Insufficient brake fluid level<\/p>\n<\/li>\n

  • \n

    Brake fluid level sensor connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    BCM connector or terminal malfunction<\/p>\n<\/li>\n

  • \n

    Short to ground in wiring harness between brake fluid level sensor terminal A and BCM terminal 3R<\/p>\n<\/li>\n

  • \n

    Brake fluid level sensor malfunction<\/p>\n<\/li>\n

  • \n

    BCM 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

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 BCM DTCs AGAIN<\/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

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

\n

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

\n INSPECT BRAKE FLUID LEVEL<\/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

Add genuine brake fluid, then go to Step 7.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT BRAKE FLUID LEVEL SENSOR 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 7.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT BCM CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the BCM 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 7.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT BRAKE FLUID LEVEL SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND<\/b><\/p>\n
    \n
  • \n

    Verify that the brake fluid level sensor and BCM connectors are disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between BCM terminal 3R (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 brake fluid level sensor terminal A and BCM terminal 3R.<\/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 7.<\/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

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

\n INSPECT BRAKE FLUID LEVEL SENSOR<\/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 brake fluid level sensor, then go to the next step.<\/p>\n

(See MASTER CYLINDER REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

7<\/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

8<\/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 [BCM]<\/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 B1048:7B [BCM] Description Brake fluid level sensor circuit malfunction Detection condition BCM detected that the brake fluid level is less than MIN with the ignition switched ON (engine off or on). Fail-safe Not applicable Possible cause Insufficient brake fluid level Brake fluid level sensor connector or terminal malfunction BCM connector or terminal malfunction Short to ground in wiring harness between brake fluid level […]<\/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-10039","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10039","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=10039"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10039\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=10039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}