Speaker Inspection

Switch the ignition to ACC or ON (engine off or on).
Turn the audio unit power on.
Tune in the radio.
While pressing the POWER/VOLUME button, press the AUTO-M button for 0.5 s or more.

Fig 1: POWER/VOLUME Button And AUTO-M Button
Courtesy of MAZDA MOTORS CORP.

Inspect according to the following table:

Inspection	Display	Action
Does each speaker output sound in the following order?: Front door speaker (LH) and tweeter (LH) Front door speaker (RH) and tweeter (RH) Rear door speaker (RH) Rear door speaker (LH)	-	Yes	The speakers and the wiring harness between the audio unit and speakers are normal.
	-	No	If no sound is produced from some of the speakers. (See NO SOUND OUTPUT IN ALL MODES [ENTERTAINMENT SYSTEM [WITHOUT CENTER DISPLAY]] .)

Switch the audio power supply off or switch the ignition off to end the diagnostic assist function.