Nissan Pathfinder (2012 year). Instruction — part 46
AV-186
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
REAR DOOR SPEAKER
REAR DOOR SPEAKER
Description
INFOID:0000000007347757
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:0000000007347758
Regarding Wiring Diagram information, refer to
AV-225, "Wiring Diagram - Without Navigation System"
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 B75 and suspect
speaker connector.
2. Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and suspect speaker harness connector (B).
3. Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
REAR DOOR SPEAKER SIGNAL CHECK
A
B
Continuity
Connector
Terminal
Connector
Terminal
B75
9
D207
1
Yes
10
2
11
D307
1
12
2
Connector
Terminal
-
Continuity
B75
9
Ground
No
10
11
12
ALNIA0533GB
August 2012
2012 Pathfinder
AV
REAR DOOR SPEAKER
AV-187
< DTC/CIRCUIT 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 speaker
connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tors B75 terminals with CONSULT or oscilloscope.
Are audio signal voltage readings as specified?
YES
>> Replace suspect speaker. Refer to
and Installation of Rear Tweeter"
.
NO
>> GO TO 4
4.
HARNESS CHECK
1. Disconnect AV control unit connector M69 and BOSE speaker
amp. connector B75.
2. Check continuity between AV control unit harness connector
M69 (A) and BOSE speaker amp. harness connector B75 (B).
3. Check continuity between AV control unit harness connector
M69 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 5
NO
>> Repair harness or connector.
5.
REAR DOOR SPEAKER SIGNAL CHECK
Connector
Terminals
Condition
Reference
signal
(+)
(-)
B75
9
10
Receive
audio sig-
nal
11
12
ALNIA0534GB
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M69
112
B75
26
Yes
118
25
108
24
114
23
A
—
Continuity
Connector
Terminal
M69
112
Ground
No
118
108
114
ALNIA0535GB
August 2012
2012 Pathfinder
AV-188
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
REAR DOOR SPEAKER
1. Connect AV control unit connector M69 and BOSE speaker
amp. connector B75.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector
M69 terminals with CONSULT or oscilloscope.
Is the audio signal voltage reading as specified?
YES
>> Replace BOSE speaker amp. Refer to
.
NO
>> Replace AV control unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M69
112
118
Receive
audio sig-
nal
108
114
ALNIA0356GB
SKIA0177E
August 2012
2012 Pathfinder
A V
REAR TWEETER
AV-189
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
REAR TWEETER
Description
INFOID:0000000007347759
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 tweeters using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000007347760
Regarding Wiring Diagram information, refer to
AV-225, "Wiring Diagram - Without Navigation System"
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 B75 and suspect
tweeter connector.
2. Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and suspect tweeter harness connector (B).
3. Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
REAR TWEETER SIGNAL CHECK
A
B
Continuity
Connector
Terminal
Connector
Terminal
B75
9
D208
1
Yes
10
2
11
D308
1
12
2
Connector
Terminal
-
Continuity
B75
9
Ground
No
10
11
12
ALNIA0533GB
August 2012
2012 Pathfinder
AV-190
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
REAR TWEETER
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 B75 terminals with CONSULT or oscilloscope.
Are audio signal voltage readings as specified?
YES
>> Replace suspect tweeter. Refer to
and Installation of Rear Tweeter"
.
NO
>> GO TO 4
4.
HARNESS CHECK
1. Disconnect AV control unit connector M69 and BOSE speaker
amp. connector B75.
2. Check continuity between AV control unit harness connector
M69 (A) and BOSE speaker amp. harness connector B75 (B).
3. Check continuity between AV control unit harness connector
M69 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 5
NO
>> Repair harness or connector.
5.
REAR TWEETER SIGNAL CHECK
Connector
Terminals
Condition
Reference
signal
(+)
(-)
B75
9
10
Receive
audio sig-
nal
11
12
ALNIA0534GB
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M69
112
B75
26
Yes
118
25
108
24
114
23
A
—
Continuity
Connector
Terminal
M69
112
Ground
No
118
108
114
ALNIA0535GB
August 2012
2012 Pathfinder
AV
REAR TWEETER
AV-191
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1. Connect AV control unit connector M69 and BOSE speaker
amp. connector B75.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector
M69 terminals with CONSULT or oscilloscope.
Is the audio signal voltage reading as specified?
YES
>> Replace BOSE speaker amp. Refer to
.
NO
>> Replace AV control unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M69
112
118
Receive
audio sig-
nal
108
114
ALNIA0356GB
SKIA0177E
August 2012
2012 Pathfinder
AV-192
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
SUBWOOFER
SUBWOOFER
Description
INFOID:0000000007347761
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 subwoofer using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000007347762
Regarding Wiring Diagram information, refer to
AV-225, "Wiring Diagram - Without Navigation System"
1.
CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and subwoofer 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.
VERIFY SUBWOOFER POWER AND GROUND SUPPLY
Check power and ground supply to the subwoofer. Refer to
AV-166, "SUBWOOFER : Diagnosis Procedure"
Did the power and ground supply check OK?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
HARNESS CHECK
1. Disconnect BOSE speaker amp. connectors and subwoofer
connector.
2. Check continuity between BOSE speaker amp. harness connec-
tors B74 (A) and B75 (B) and subwoofer harness connector B72
(C).
3. Check continuity between BOSE speaker amp. harness connec-
tor B74 (A) and B75 (B) and ground.
Are the continuity results as specified?
YES
>> GO TO 4
NO
>> Repair harness or connector.
4.
SUBWOOFER AMP ON SIGNAL CHECK
Connector
Terminal
Connector
Terminal
Continuity
A: B74
3
C: B72
1
Yes
19
2
B: B75
22
4
Connector
Terminal
-
Continuity
A: B74
3
Ground
No
19
B: B75
22
ALNIA0536GB
August 2012
2012 Pathfinder
AV
SUBWOOFER
AV-193
< DTC/CIRCUIT 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 B74.
2. Turn ignition switch to ACC.
3. Push "POWER" switch.
4. Check voltage between subwoofer connector B72 terminal 4
and ground.
Are the voltage readings as specified?
YES
>> GO TO 5
NO
>> Replace BOSE speaker amp. Refer to
AV-265, "Removal and Installation"
.
5.
SUBWOOFER AUDIO SIGNAL CHECK
1. Connect BOSE speaker amp. connectors and subwoofer connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor B74 terminals with CONSULT or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace subwoofer. Refer to
AV-266, "Removal and Installation"
NO
>> GO TO 6
6.
HARNESS CHECK
1. Turn ignition switch OFF.
(+)
(-)
Voltage
Connector
Terminal
B72
4
Ground
Battery voltage
ALNIA0540GB
Connector
Terminals
Condition
Reference
signal
(+)
(-)
B74
19
3
Receive au-
dio signal
ALNIA0879GB
SKIA0177E
August 2012
2012 Pathfinder
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