Nissan Altima L32. Instruction — part 30
AV-112
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT (SEDAN)
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector B126.
3. Check continuity between Bluetooth control unit harness con-
nector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair harness or connector.
MICROPHONE
MICROPHONE : Diagnosis Procedure
INFOID:0000000004206443
1.
CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)
Check voltage between microphone harness connector and ground.
Is proper voltage present?
YES
>> GO TO 4
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit and microphone connectors.
3. Check continuity between microphone harness connector R7
(A) terminal 4 and Bluetooth control unit harness connector
B126 (B) terminal 29.
4. Check continuity between microphone harness connector R7
(A) terminal 4 and ground.
Are continuity results as specified?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK POWER SUPPLY CIRCUIT (BLUETOOTH CONTROL UNIT SIDE)
(+)
(-)
Continuity
Connector
Terminal
B126
4
Ground
Yes
24
ALNIA0130ZZ
(+)
(-)
Ignition switch po-
sition
Value (Approx.)
Connector
Terminal
R7
4
Ground
ON
5V
WKIA5796E
Signal name
Continuity
Microphone VCC signal
Continuity should exist.
Signal name
Continuity
Microphone VCC signal
Continuity should not exist.
ALNIA0132ZZ
AV
POWER SUPPLY AND GROUND CIRCUIT (SEDAN)
AV-113
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1. Connect Bluetooth control unit connector.
2. Turn ignition switch ON.
3. Check voltage between Bluetooth control unit harness connec-
tor and ground.
Is proper voltage present?
YES
>> Inspection End.
NO
>> Replace Bluetooth control unit. Refer to
"Removal and Installation - Sedan"
.
4.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit and microphone connectors.
3. Check continuity between microphone harness connector R7
terminal 2 and Bluetooth control unit harness connector B126
terminal 8.
Is continuity present?
YES
>> Inspection End.
NO
>> Repair harness or connector.
(+)
(-)
Ignition switch po-
sition
Value (Approx.)
Connector
Terminal
B126
29
Ground
ON
5V
ALNIA0133ZZ
Signal name
Continuity
Microphone ground
Continuity should exist.
ALNIA0170ZZ
AV-114
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
DOOR SPEAKER (COUPE)
DOOR SPEAKER (COUPE)
Description
INFOID:0000000004206444
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio
signals before sending them to the door speakers using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000004206445
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.
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
DOOR SPEAKER (COUPE)
AV-115
< 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 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.
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
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