Nissan Altima L32. Instruction — part 31
AV-116
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
DOOR SPEAKER (COUPE)
1. Connect audio unit connector and BOSE speaker amp. connec-
tor.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals 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 audio unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M43
2
3
Receive
audio sig-
nal
11
12
AWNIA0032ZZ
SKIA0177E
AV
FRONT DOOR SPEAKER (SEDAN)
AV-117
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
FRONT DOOR SPEAKER (SEDAN)
Description
INFOID:0000000004206446
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:0000000004206447
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
B
Continuity
Connector
Terminal
B121
58
Ground
No
59
71
72
ALNIA0134ZZ
AV-118
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
FRONT DOOR SPEAKER (SEDAN)
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 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 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
M43
2
B121
75
Yes
3
76
11
73
12
74
A
—
Continuity
Connector
Terminal
M43
2
Ground
No
3
11
12
ALNIA0136ZZ
AV
FRONT DOOR SPEAKER (SEDAN)
AV-119
< 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 and BOSE speaker amp. connec-
tor.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals 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 audio unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M43
2
3
Receive
audio sig-
nal
11
12
AWNIA0032ZZ
SKIA0177E
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