Mazda MX-3 silhouetteMX-3

ANTI-LOCK BRAKE SYSTEM — ON-BOARD DIAGNOSIS FUNCTION

P-54prose procedure
Continued from P-53

ON-BOARD DIAGNOSIS FUNCTION

Inspection By Diagnostic Mode

Outline

The ABS control module contains on-board diagnosis and memory functions to watch for and indicate present and past failures. Read and note the diagnostic indications using the SSTs then take action according to the diagnostic trouble code table. (Refer to page P-56.)

Inspection procedure

  1. 1
    Connect the SSTs to the data link connector and a ground.
    Illustration of the SSTs connected to the data link connector and ground for on-board diagnosis. Labels SELECT SW A, SYSTEM SELECT 3, TEST SW SELF TEST. Two tool number plates: 49 H018 9A1 and 49 B019 9A0.
  2. 2
    Set the select switch to position A.
  3. 3
    Set the system selector to position 3 and SELF TEST as shown.
    Close-up of the system selector / self test switch panel showing the SYSTEM SELECTOR rotary dial (positions 1-7) set near 3, and the SELF TEST toggle switch. Labels SYSTEM SELECTOR, TEST SW SELF TEST, SYSTEM SELECT, SELF TEST.
  4. 4
    Turn the ignition switch ON.
  5. 5
    Verify that 88 flashes on the digital display and the buzzer sounds for 3 sec. after turning the ignition switch ON.
    Illustration of the Self-Diagnosis Checker showing a digital display reading 88, a MONITOR LAMP, and a SELECT SW switch. Labels SELF-DIAGNOSIS CHECKER, MONITOR LAMP, SELECT SW.
  6. 6
    If 88 does not flash, check power supply circuit, and ground wiring.
  7. 7
    If 88 flashes and the buzzer continues for more than 20 sec., check for a short circuit between terminal TBS and ground. Replace ABS control module if necessary and perform steps 3 and 4 again.
  8. 8
    Note any code numbers and check for the causes by referring to the check sequences shown on pages P-57 to P-59. Repair as necessary.
  9. 9
    After repairs, cancel the code numbers by performing "Memory Cansel." (Refer to page P-56.)
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See also

page P-56page P-57page P-59

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