{"id":10799,"date":"2017-06-11T23:56:49","date_gmt":"2017-06-11T23:56:49","guid":{"rendered":"http:\/\/mazdaman.x10host.com\/sm361327\/"},"modified":"2017-06-11T23:56:49","modified_gmt":"2017-06-11T23:56:49","slug":"sm361327","status":"publish","type":"page","link":"https:\/\/chroot-me.in\/16ND\/sm361327\/","title":{"rendered":"DTC C101B:16\/C101B:17 [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 C101B:16\/C101B:17 [EVP CONTROL UNIT]<\/h3>\n\n\n\n\n\n\n\n\n
\n

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

\n

C101B:16<\/b><\/p>\n<\/td>\n

\n

Vacuum sensor 1 circuit low input<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

C101B:17<\/b><\/p>\n<\/td>\n

\n

Vacuum sensor 1 circuit high input<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

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

\n
    \n
  • \n

    C101B:16<\/p>\n<\/li>\n

      \n
    • \n

      If the EVP control unit detects that the vacuum sensor 1 voltage at the EVP control unit terminal AC is below 0.16 V<\/b> for 0.6 s<\/b>, the EVP control unit determines that the vacuum sensor 1 circuit has a malfunction.<\/p>\n<\/li>\n<\/ul>\n

    • \n

      C101B:17<\/p>\n<\/li>\n

        \n
      • \n

        If the EVP control unit detects that the vacuum sensor 1 voltage at the EVP control unit terminal AC is above 4.9 V<\/b> for 0.6 s<\/b>, the EVP control unit determines that the vacuum sensor 1 circuit has a malfunction.<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n
\n

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

\n
    \n
  • \n

    Vacuum sensor 1 connector or terminals malfunction<\/p>\n<\/li>\n

  • \n

    Short to ground circuit in wiring harness between vacuum sensor 1 terminal C and EVP control unit terminal AC<\/p>\n<\/li>\n

  • \n

    EVP control unit connector or terminals malfunction<\/p>\n<\/li>\n

  • \n

    Open circuit in wiring harness between vacuum sensor 1 terminal A and EVP control unit terminal AA<\/p>\n<\/li>\n

  • \n

    Open circuit in wiring harness between vacuum sensor 1 terminal B and EVP control unit terminal Y<\/p>\n<\/li>\n

  • \n

    Short to power supply in wiring harness between vacuum sensor 1 terminal C and EVP control unit terminal AC<\/p>\n<\/li>\n

  • \n

    Open circuit in wiring harness between vacuum sensor 1 terminal C and EVP control unit terminal AC<\/p>\n<\/li>\n

  • \n

    Vacuum sensor 1 malfunction<\/p>\n<\/li>\n

  • \n

    EVP control 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\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 RECORD SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS TO UTILIZE WITH REPEATABILITY VERIFICATION<\/b><\/p>\n

NOTE:<\/span><\/b><\/p>\n

    \n
  • \n

    Recording can be facilitated using the screen capture function of the PC.<\/p>\n<\/li>\n<\/ul>\n

      \n
    • \n

      Record the snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (fuel system related) on the repair order.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

\u2014<\/p>\n<\/td>\n

\n

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

\n

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

\n VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY OTHER RELATED DTCs OCCURRING<\/b><\/p>\n\n

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

\n

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

(See DTC C101B:1C [EVP CONTROL UNIT]<\/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 DETERMINE IF MALFUNCTION CAUSE IS VACUUM SENSOR 1 POWER SUPPLY CIRCUIT OR SIGNAL CIRCUIT<\/b><\/p>\n
    \n
  • \n

    Verify the following items with regard to the recorded snap shot data from Step 1.<\/p>\n<\/li>\n

      \n
    • \n

      VS1_V<\/p>\n<\/li>\n

    • \n

      VPWR<\/p>\n<\/li>\n<\/ul>\n

    • \n

      Are snapshot data VS1_V and VPWR within specification?<\/p>\n<\/li>\n

        \n Specification:<\/b><\/p>\n
      • \n

        VS1_V: Approx. 5 V<\/b><\/p>\n<\/li>\n

      • \n

        VPWR: 8.3\u201417.4 V<\/b><\/p>\n<\/li>\n<\/ul>\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
    \n If DTC C101B:16 is stored:<\/b><\/p>\n
  • \n

    Go to Step 8.<\/p>\n<\/li>\n<\/ul>\n

      \n If DTC C101B:17 is stored:<\/b><\/p>\n
    • \n

      Go to Step 12.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n DETERMINE WHETHER MALFUNCTION IS PAST OR PRESENT<\/b><\/p>\n
    \n
  • \n

    Switch the ignition ON (engine off).<\/p>\n<\/li>\n

  • \n

    Access the VS1 and VS2 PIDs using the M-MDS.<\/p>\n<\/li>\n

  • \n

    Compare the values of PIDs VS1 and VS2.<\/p>\n<\/li>\n

  • \n

    Is the difference between PIDs VS1 and VS2 5 kPa {38 mmHg, 2 inHg} or more<\/b>?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

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

\n
    \n If DTC C101B:16 is stored:<\/b><\/p>\n
  • \n

    Go to Step 8.<\/p>\n<\/li>\n<\/ul>\n

      \n If DTC C101B:17 is stored:<\/b><\/p>\n
    • \n

      Go to Step 12.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n

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

\n

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

\n VERIFY DTC REPEATABILITY<\/b><\/p>\n
    \n
  • \n

    Switch the ignition ON (engine off).<\/p>\n<\/li>\n

  • \n

    Access the VS1 PID using the M-MDS.<\/p>\n<\/li>\n

  • \n

    Does the value in PID VS1 change when the wiring harnesses for vacuum sensor 1 is shaken?<\/p>\n<\/li>\n<\/ul>\n<\/td>\n

\n

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

\n
    \n If DTC C101B:16 is stored:<\/b><\/p>\n
  • \n

    Go to Step 8.<\/p>\n<\/li>\n<\/ul>\n

      \n If DTC C101B:17 is stored:<\/b><\/p>\n
    • \n

      Go to Step 12.<\/p>\n<\/li>\n<\/ul>\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 DRIVE VEHICLE THEN VERIFY DTC REPEATABILITY BASED ON SERVICE QUESTIONING RESULTS AND SNAP SHOT DATA<\/b><\/p>\n
    \n
  • \n

    Switch the ignition ON (engine off).<\/p>\n<\/li>\n

  • \n

    Access the VS1 PID using the M-MDS.<\/p>\n<\/li>\n

  • \n

    Drive the vehicle based on the service questions content and snap shot data driving conditions.<\/p>\n<\/li>\n

  • \n

    Is the VS1 PID value below 40 kPa {300 mmHg, 11 inHg}<\/b>, while the vehicle is driven?<\/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
    \n If DTC C101B:16 is stored:<\/b><\/p>\n
  • \n

    Go to Step 8.<\/p>\n<\/li>\n<\/ul>\n

      \n If DTC C101B:17 is stored:<\/b><\/p>\n
    • \n

      Go to Step 12.<\/p>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n

\n

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

\n VERIFY DTC REPEATABILITY AND DETERMINE IF MALFUNCTION CAUSE IS ELECTRIC VACUUM PUMP CONTROL UNIT<\/b><\/p>\n\n

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

\n

Replace the EVP control unit, then go to Step 17.<\/p>\n

(See EVP CONTROL UNIT REMOVAL\/INSTALLATION<\/a>.)<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n

DTC troubleshooting completed.<\/p>\n

Explain to the customer that there are no malfunctions with the vehicle based on the contents of the servicing.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT VACUUM SENSOR 1 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 and\/or terminals, then go to Step 16.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT VACUUM SENSOR 1 SIGNAL CIRCUIT FOR SHORT TO GROUND CIRCUIT<\/b><\/p>\n
    \n
  • \n

    Verify that the vacuum sensor 1 connector is disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between vacuum sensor 1 terminal C (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

Disconnect the EVP control unit connector and inspect the wiring harness for short to ground.<\/p>\n

    \n
  • \n

    If the short to ground circuit could be detected in the wiring harness:<\/p>\n<\/li>\n

      \n
    • \n

      Refer to the wiring diagram and verify whether or not there is a common connector between vacuum sensor 1 terminal C and EVP control unit terminal AC.<\/p>\n<\/li>\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

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

\n

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

\n

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

\n INSPECT EVP CONTROL UNIT CONNECTOR CONDITION<\/b><\/p>\n
    \n
  • \n

    Disconnect the EVP control unit connector.<\/p>\n<\/li>\n

  • \n

    Inspect for poor connection (such as damaged\/pulled-out pins, corrosion).<\/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 and\/or terminals, then go to Step 16.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT VACUUM SENSOR 1 POWER SUPPLY AND GROUND CIRCUIT FOR OPEN CIRCUIT<\/b><\/p>\n
    \n
  • \n

    Verify that the vacuum sensor 1 and EVP control unit connectors are disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity as followings (wiring harness-side):<\/p>\n<\/li>\n

      \n
    • \n

      Vacuum sensor 1 terminal A\u2014EVP control unit terminal AA<\/p>\n<\/li>\n

    • \n

      Vacuum sensor 1 terminal B\u2014EVP control unit terminal Y<\/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

Replace the power brake unit, then go to Step 16. (Vacuum sensor 1 malfunction)<\/p>\n

(See POWER BRAKE UNIT REMOVAL\/INSTALLATION<\/a>.)<\/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

    Vacuum sensor 1 terminal A\u2014EVP control unit terminal AA<\/p>\n<\/li>\n

  • \n

    Vacuum sensor 1 terminal B\u2014EVP control unit terminal Y<\/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 Step 16.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT VACUUM SENSOR 1 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 and\/or terminals, then go to Step 16.<\/p>\n<\/td>\n<\/tr>\n

\n

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

\n INSPECT VACUUM SENSOR 1 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY<\/b><\/p>\n\n

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

\n

Refer to the wiring diagram and verify whether or not there is a common connector between vacuum sensor 1 terminal C and EVP control unit terminal AC.<\/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 power supply.<\/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 power supply.<\/p>\n<\/li>\n<\/ul>\n

      Go to Step 16.<\/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 INSPECT EVP 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 and\/or terminals, then go to Step 16.<\/p>\n<\/td>\n<\/tr>\n

\n

15<\/p>\n<\/td>\n

\n INSPECT VACUUM SENSOR 1 SIGNAL CIRCUIT FOR OPEN CIRCUIT<\/b><\/p>\n
    \n
  • \n

    Verify that the vacuum sensor 1 and EVP control unit connectors are disconnected.<\/p>\n<\/li>\n

  • \n

    Inspect for continuity between vacuum sensor 1 terminal C (wiring harness-side) and EVP control unit terminal AC (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

Replace the power brake unit, then go to the next step. (Vacuum sensor 1 malfunction)<\/p>\n

(See POWER BRAKE UNIT REMOVAL\/INSTALLATION<\/a>.)<\/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 vacuum sensor 1 terminal C and EVP control unit terminal AC.<\/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 the next step.<\/p>\n<\/td>\n<\/tr>\n

\n

16<\/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 EVP control unit, then go to the next step.<\/p>\n

(See EVP CONTROL UNIT 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

17<\/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 [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

\n Back to Top<\/a>\n <\/div>\n
\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 C101B:16\/C101B:17 [EVP CONTROL UNIT] DTC C101B:16 Vacuum sensor 1 circuit low input C101B:17 Vacuum sensor 1 circuit high input DETECTION CONDITION C101B:16 If the EVP control unit detects that the vacuum sensor 1 voltage at the EVP control unit terminal AC is below 0.16 V for 0.6 s, the EVP control unit determines that the vacuum sensor 1 circuit has a malfunction. C101B:17 If the […]<\/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-10799","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10799","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=10799"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/pages\/10799\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/16ND\/wp-json\/wp\/v2\/media?parent=10799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}