Nissan Altima L32. Instruction — part 84
AV-328
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
DOOR SPEAKER (COUPE)
1. Connect BOSE speaker amp. connector B121 and suspect
speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor B121 terminals with CONSULT-III or oscilloscope.
Is audio signal voltage as specified?
YES
>> Replace suspect speaker. Refer to
.
NO
>> GO TO 3
3.
HARNESS CHECK
1. Disconnect AV control unit connector M47 and BOSE speaker
amp. connector B121.
2. Check continuity between audio unit harness connector M47 (A)
and BOSE speaker amp. harness connector B121 (B).
3. Check continuity between AV control unit harness connector
M47 (A) and ground.
Are continuity test results as specified?
YES
>> GO TO 4
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
4.
DOOR SPEAKER SIGNAL CHECK
Connec-
tor
Terminal
Condition
Reference
signal
(+)
(-)
B121
58
59
Receive
audio sig-
nal
71
72
ALNIA0135ZZ
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M47
2
B121
75
Yes
3
76
11
73
12
74
A
—
Continuity
Connector
Terminal
M47
2
Ground
No
3
11
12
ALNIA0136ZZ
AV
DOOR SPEAKER (COUPE)
AV-329
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1. Connect AV control unit connector and BOSE speaker amp.
connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector ter-
minals with CONSULT-III or oscilloscope.
Are the audio signal voltage readings as specified?
YES
>> Replace BOSE speaker amp. Refer to
"Removal and Installation - Coupe"
.
NO
>> Replace AV control unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M47
2
3
Receive
audio sig-
nal
11
12
ALNIA0171ZZ
SKIA0177E
AV-330
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
FRONT DOOR SPEAKER (SEDAN)
FRONT DOOR SPEAKER (SEDAN)
Description
INFOID:0000000004206640
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio
signals before sending them to the front door speakers using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000004206641
1.
HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B121 and suspect
speaker connector.
2. Check continuity between BOSE speaker amp. harness connec-
tor B121 (A) and suspect speaker harness connector (B).
3. Check continuity between BOSE speaker amp. harness connec-
tor B121 (A) and ground.
Are continuity test results as specified?
YES
>> GO TO 2
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.
FRONT DOOR SPEAKER SIGNAL CHECK
A B
Continuity
Connector
Terminal
Connector
Terminal
B121
58
D3
1
Yes
59
2
71
D103
1
72
2
A
—
Continuity
Connector
Terminal
B121
58
Ground
No
59
71
72
ALNIA0134ZZ
AV
FRONT DOOR SPEAKER (SEDAN)
AV-331
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1. Connect BOSE speaker amp. connector B121 and suspect
speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor B121 terminals with CONSULT-III or oscilloscope.
Is audio signal voltage as specified?
YES
>> Replace suspect speaker. Refer to
.
NO
>> GO TO 3
3.
HARNESS CHECK
1. Disconnect AV control unit connector M47 and BOSE speaker
amp. connector B121.
2. Check continuity between audio unit harness connector M47 (A)
and BOSE speaker amp. harness connector B121 (B).
3. Check continuity between AV control unit harness connector
M47 (A) and ground.
Are continuity test results as specified?
YES
>> GO TO 4
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
4.
FRONT DOOR SPEAKER SIGNAL CHECK
Connec-
tor
Terminal
Condition
Reference
signal
(+)
(-)
B121
58
59
Receive
audio sig-
nal
71
72
ALNIA0135ZZ
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M47
2
B121
75
Yes
3
76
11
73
12
74
A
—
Continuity
Connector
Terminal
M47
2
Ground
No
3
11
12
ALNIA0136ZZ
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