Mazda CX-7 2007 Workshop Manual page 1429

SYMPTOM TROUBLESHOOTING [ENTIRE AUDIO SYSTEM]
09-03D SYMPTOM TROUBLESHOOTING [ENTIRE AUDIO
SYSTEM]
FOREWORD
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–1
Troubleshooting Index . . . . . . . . . . . . . 09-03D–1
Quick Diagnostic Chart
(Entire Audio System) . . . . . . . . . . . . 09-03D–2
CONFIRMATION STEP 1: AUDIO PANEL
SWITCH CONFIRMATION[ENTIRE
AUDIO SYSTEM]. . . . . . . . . . . . . . . . . . 09-03D–3
How to activate audio panel switch
confirmation mode . . . . . . . . . . . . . . . 09-03D–3
CONFIRMATION STEP 2: AUDIO
CONTROL SWITCH CONFIRMATION
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–3
NO.1 AF NOISE OR POP NOISE ON ALL
SOURCES (RADIO, CD, CASSETTE
TAPE)[ENTIRE AUDIO SYSTEM]. . . . . 09-03D–4
NO.2 NO POWER ON THE ENTIRE
AUDIO SYSTEM
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–5
NO.3 NO SOUND FROM ALL
SPEAKERS
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–6
Vehicles Without Bose . . . . . . . . . . . . . 09-03D–6
End of Toc
WM: AUDIO UNIT FOREWORD[ENTIRE AUDIO SYSTEM]
Note
• Record all radio programs set by customer prior to the repairs. Set all radio programs and adjust the time
after repairs.
Troubleshooting Index
No.
1 AF noise or POP noise on all sources (Radio, CD, Cassette tape)
2 No power on the entire audio system
3 No sound at all
4 No sound from some speaker
5 Broken sound or poor sound quality
6 Sound becomes loudly or weakly while driving the vehicle
7 ALC function is inoperative (without Bose)
8 Audio pilot function is inoperative (with Bose)
9 Audio system illumination does not illuminate at all.
10 LCD does not display at all.
Vehicles With Bose . . . . . . . . . . . . . . . . 09-03D–7
NO.4 NO SOUND FROM CERTAIN
SPEAKER[ENTIRE
AUDIO SYSTEM] . . . . . . . . . . . . . . . . . . 09-03D–10
Vehicles Without Bose. . . . . . . . . . . . . . 09-03D–10
Vehicles With Bose . . . . . . . . . . . . . . . . 09-03D–11
NO.5 BROKEN SOUND OR POOR
SOUND QUALITY
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–14
NO.6 SOUND BECOMES LOUD OR
WEAK WHILE DRIVING THE VEHICLE
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–15
NO.7 ALC FUNCTION IS INOPERATIVE
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–16
NO.8 AUDIO PILOT FUNCTION IS
INOPERATIVE
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–16
NO.9 AUDIO SYSTEM ILLUMINATION
DOES NOT ILLUMINATE AT ALL
[ENTIRE AUDIO SYSTEM] . . . . . . . . . . 09-03D–17
NO.10 LCD DOES NOT DISPLAY AT
ALL[ENTIRE AUDIO SYSTEM] . . . . . . . 09-03D–17
Symptom Possible DTC
09:Er20, 09:Er21
09:Er20
00:Er04, 00:Er10, 03:Er07, 03:Er10,
09:Er20, 09:Er21
—
09:Er21
—
16:Er12
16:Er12
09:Er20, 21:Er19
09:Er20, 21:Er19
09-03D–1
09-03D
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