Mazda CX-7 2007 Workshop Manual page 1394

Radio Reception Condition Inspection
1. With the audio power on, press the POWER button and simultaneously press the PRESET 2 button for approx.
1 s.
2. Inspect according to the following table:
Caution
• Even if the system is normal, radio reception may be difficult depending on where the system is
inspected (indoors/outdoors, or conditions at the location). Before inspecting the system, verify
that radio reception is adequate.
• When inspecting, select a frequency band (radio station) with the best reception.
INSPECTION
Start the radio reception condition
inspection mode.
3. Turn the audio off or the ignition switch to the LOCK position to stop the diagnostic assist function.
Antenna control condition inspection
1. With the audio power on and at radio mode, press the POWER button and simultaneously press the AM button
for approx. 1 s.
2. Inspect the antenna control conditon according to the following table:
INSPECTION
Start antenna control condition
inspection mode.
3. Turn the audio off or the ignition switch to the LOCK position to stop the diagnostic assist function.
End Of Sie
09-02G–6
ON-BOARD DIAGNOSTIC [AUDIO]
DISPLAY
NORMAL CONDITION
MALFUNCTION PRESENT
DISPLAY
ACTION
Antenna, antenna feeder and base unit are normal.
Change the frequency (radio station) and inspect
again.
Inspect the antenna and antenna feeder.
• If either the antenna or the antenna feeder is
not normal, replace the malfunctioning part.
• If the antenna and antenna feeder are
normal, replace the base unit.
ACTION
Sound quality is good. System is okay.
Sound quality is poor. Inspect following parts.
• Center roof antenna
• Antenna feeder
Replace base unit.