Nissan Altima L32. Instruction — part 34
AV-128
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
REAR TWEETER (COUPE)
REAR TWEETER (COUPE)
Description
INFOID:0000000004206454
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio
signals before sending them to the rear tweeters using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000004206455
1.
HARNESS CHECK
1. Disconnect BOSE speaker amp. connectors B121, B122 and
suspect tweeter connector.
2. Check continuity between BOSE speaker amp. harness connec-
tors B121 (A) and B122 (B) and suspect tweeter harness con-
nector (C).
3. Check continuity between BOSE speaker amp. harness connec-
tors B121 (A) and B122 (B) 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 DOOR SPEAKER SIGNAL CHECK
Connector
Terminal
Connector
Terminal
Continuity
A: B121
55
C: D202
2
Yes
68
1
B: B122
49
C: D302
2
54
1
Connector
Terminal
-
Continuity
A: B121
55
Ground
No
68
B: B122
49
54
ALNIA0141ZZ
AV
REAR TWEETER (COUPE)
AV-129
< 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. connectors and suspect tweeter
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 tweeter. 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-130
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
REAR TWEETER (COUPE)
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 - Coupe"
.
NO
>> Replace audio unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M43
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
AV
REAR DOOR SPEAKER (SEDAN)
AV-131
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
REAR DOOR SPEAKER (SEDAN)
Description
INFOID:0000000004206456
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio
signals before sending them to the rear door speakers using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000004206457
1.
HARNESS CHECK
1. Disconnect BOSE speaker amp. connectors B121, B122 and
suspect speaker connector.
2. Check continuity between BOSE speaker amp. harness connec-
tors B121 (A) and B122 (B) and suspect speaker harness con-
nector (C).
3. Check continuity between BOSE speaker amp. harness connec-
tors B121 (A) and B122 (B) 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 DOOR SPEAKER SIGNAL CHECK
Connector
Terminal
Connector
Terminal
Continuity
A: B121
55
C: D202
2
Yes
68
1
B: B122
49
C: D302
2
54
1
Connector
Terminal
-
Continuity
A: B121
55
Ground
No
68
B: B122
49
54
ALNIA0141ZZ
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