Nissan Maxima. Manual — part 148
AV-412
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
CENTER SPEAKER
CENTER SPEAKER
Description
INFOID:0000000009471368
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the
audio signals before sending them to the center speaker using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000009471369
Regarding Wiring Diagram information, refer to
AV-449, "Wiring Diagram - With BOSE Audio system Without
1.
CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and speaker connectors for the following:
• Proper connection
• Damage
• Disconnected or loose terminals
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair the terminal and connector.
2.
HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B109 and center
speaker connector M130.
2. Check continuity between BOSE speaker amp. harness connec-
tor B109 (A) and center speaker harness connector M130 (B).
3. Check continuity between BOSE speaker amp. harness connec-
tor B109 (A) and ground.
Are continuity test results as specified?
YES
>> GO TO 3.
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
3.
CENTER SPEAKER SIGNAL CHECK
A B
Continuity
Connector
Terminal
Connector
Terminal
B109
29
M130
1
Yes
30
2
A
—
Continuity
Connector
Terminal
B109
29
Ground
No
30
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AV
CENTER SPEAKER
AV-413
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
C
D
E
F
G
H
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K
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M
B
A
O
P
1. Connect BOSE speaker amp. connector B109 and center
speaker connector.
2. Turn ignition switch to ACC.
3. Push POWER switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor B109 terminals with CONSULT or oscilloscope.
Is the audio signal voltage reading as specified?
YES
>> Replace center speaker. Refer to
AV-489, "Removal and Installation"
NO
>> GO TO 4.
4.
HARNESS CHECK
1. Disconnect AV control unit connector M157 and BOSE speaker
amp. connector B109.
2. Check continuity between AV control unit harness connector
M157 (A) and BOSE speaker amp. harness connector B109 (B).
3. Check continuity between AV control unit harness connector
M157 (A) and ground.
Are continuity test results as specified?
YES
>> GO TO 5.
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
5.
CENTER SPEAKER SIGNAL CHECK
Connector
Terminals
Condition
Reference
signal
(+)
(-)
B109
29
30
Receive
audio sig-
nal
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SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M157
113
B109
35
Yes
119
36
109
33
115
34
A
—
Continuity
Connector
Terminal
M157
113
Ground
No
119
109
115
AWNIA1761ZZ
AV-414
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
CENTER SPEAKER
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 or oscilloscope.
Are the audio signal voltage readings as specified?
YES
>> Replace BOSE speaker amp. Refer to
.
NO
>> Replace AV control unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M157
113
119
Receive
audio sig-
nal
109
115
AWNIA1981ZZ
SKIA0177E
AV
REAR DOOR SPEAKER
AV-415
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
C
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B
A
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REAR DOOR SPEAKER
Description
INFOID:0000000009471370
The AV control 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:0000000009471371
Regarding Wiring Diagram information, refer to
AV-449, "Wiring Diagram - With BOSE Audio system Without
1.
CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and speaker connectors for the following:
• Proper connection
• Damage
• Disconnected or loose terminals
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair the terminal and connector.
2.
HARNESS CHECK
1. Disconnect BOSE speaker amp. connectors B109, B110 and
suspect speaker connector.
2. Check continuity between BOSE speaker amp. harness connec-
tors B109 (A) and B110 (B) and suspect speaker harness con-
nector (C).
3. Check continuity between BOSE speaker amp. harness connec-
tors B109 (A) and B110 (B) and ground.
Are the continuity test results as specified?
YES
>> GO TO 3.
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
3.
REAR DOOR SPEAKER SIGNAL CHECK
Connector
Terminal
Connector
Terminal
Continuity
A: B109
15
C: D202
2
Yes
28
1
B: B110
9
C: D302
2
14
1
Connector
Terminal
-
Continuity
A: B109
15
Ground
No
28
B: B110
9
14
AWNIA1702ZZ
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