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Home >> Mazda >> 2018 >> CX-9 Signature >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Connectivity Master Unit >> Diagnostic Assist Function (Connectivity Master Unit) >> Diagnostic Assist Code Input Procedure >> Diagnostic Assist Code "94" Speaker Inspection
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Diagnostic Assist Code "94" Speaker Inspection

  1. Input diagnostic assist code "94" according to the diagnostic assist code input procedure. (See DIAGNOSTIC ASSIST CODE INPUT PROCEDURE .)
    Inspection Display Of Center Display Action
    • Launch the speaker inspection mode.
    • Does each speaker output sound in the following order?:
      1. Front door speaker (LH) and tweeter (LH)
      2. Front door speaker (RH) and tweeter (RH)
      3. Rear door speaker (RH)
      4. Rear door speaker (LH)
    - Yes The speaker, tuner and amp unit (TAU), and the wiring harness between the tuner and amp unit (TAU) and speaker are normal.
    No Refer to the symptom troubleshooting.
    (See NO SOUND OUTPUT IN ALL MODES [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]] .)
  2. Cancel the diagnostic assist function according to the ending procedure. (See ENDING PROCEDURE .)