Nissan Altima L32. Instruction — part 35
AV-132
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
REAR DOOR SPEAKER (SEDAN)
1. Connect BOSE speaker amp. connectors and suspect speaker
connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tors B121 (A) and B122 (B) terminals with CONSULT-III or oscil-
loscope.
Are audio signal voltage readings as specified?
YES
>> Replace suspect speaker. Refer to
NO
>> GO TO 3
3.
HARNESS CHECK
1. Disconnect audio unit connector M43 and BOSE speaker amp.
connector B121.
2. Check continuity between audio unit harness connector M43 (A)
and BOSE speaker amp. harness connector B121 (B).
3. Check continuity between audio unit harness connector M43 (A)
and ground.
Are the continuity test results as specified?
YES
>> GO TO 4
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
4.
REAR DOOR SPEAKER SIGNAL CHECK
Connector
Terminals
Condition
Reference
signal
(+)
(-)
A: B121
68
55
Receive
audio sig-
nal
B: B122
54
49
ALNIA0142ZZ
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M43
4
B121
64
Yes
5
63
13
66
14
65
A
—
Continuity
Connector
Terminal
M43
4
Ground
No
5
13
14
ALNIA0144ZZ
AV
REAR DOOR SPEAKER (SEDAN)
AV-133
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1. Connect audio unit connector M43 and BOSE speaker amp.
connector B121.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M43
terminals with CONSULT-III or oscilloscope.
Is the audio signal voltage reading as specified?
YES
>> Replace BOSE speaker amp. Refer to
"Removal and Installation - Sedan"
.
NO
>> Replace audio unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M43
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
AV-134
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
SUBWOOFER (COUPE)
SUBWOOFER (COUPE)
Description
INFOID:0000000004206458
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio
signals before sending them to the subwoofers using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000004206459
1.
HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B122 and suspect
rear subwoofer connector.
2. Check continuity between BOSE speaker amp. harness connec-
tor B122 (A) and suspect rear subwoofer harness connector (B).
3. Check continuity between BOSE speaker amp. harness connec-
tor B122 (A) and ground.
Are the continuity test results as specified?
YES
>> GO TO 2
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.
REAR SUBWOOFER SIGNAL CHECK
A B
Continuity
Connector
Terminal
Connector
Terminal
B122
53
B25
1
Yes
48
2
45
B47
1
46
2
A
—
Continuity
Connector
Terminal
B122
53
Ground
No
48
45
46
ALNIA0145ZZ
AV
SUBWOOFER (COUPE)
AV-135
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1. Connect BOSE speaker amp. connector B122 and suspect rear
subwoofer connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor B122 terminals with CONSULT-III or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace suspect rear subwoofer. Refer to
.
NO
>> GO TO 3
3.
HARNESS CHECK
1. Disconnect audio unit connector M43 and BOSE speaker amp.
connector B121.
2. Check continuity between audio unit harness connector M43 (A)
and BOSE speaker amp. harness connector B121 (B).
3. Check continuity between audio unit harness connector M43 (A)
terminal 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.
REAR SUBWOOFER SIGNAL CHECK
Connector
Terminals
Condition
Reference
signal
(+)
(-)
B122
53
48
Receive au-
dio signal
45
46
ALNIA0932GB
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M43
4
B121
64
Yes
5
63
13
66
14
65
A
—
Continuity
Connector
Terminal
M43
4
Ground
No
5
13
14
ALNIA0144ZZ
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