Nissan Pathfinder (2008 year). Manual — part 65
AV-360
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
REAR DOOR SPEAKER
1.
Connect AV control unit connector M42 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
M42 terminals with CONSULT-III 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
(+)
(-)
M42
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
AV
REAR TWEETER
AV-361
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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REAR TWEETER
Description
INFOID:0000000001469754
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:0000000001469755
1.
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 test results as specified?
YES
>> GO TO 2
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.
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
AV-362
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH 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-III or oscilloscope.
Are audio signal voltage readings as specified?
YES
>> Replace suspect tweeter. Refer to
.
NO
>> GO TO 3
3.
HARNESS CHECK
1.
Disconnect AV control unit connector M42 and BOSE speaker
amp. connector B75.
2.
Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector B75 (B).
3.
Check continuity between AV control unit harness connector
M42 (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 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
M42
4
B75
26
Yes
5
25
13
24
14
23
A
—
Continuity
Connector
Terminal
M42
4
Ground
No
5
13
14
ALNIA0551GB
AV
REAR TWEETER
AV-363
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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F
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B
A
O
P
1.
Connect AV control unit connector M42 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
M42 terminals with CONSULT-III 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
(+)
(-)
M42
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
AV-364
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
WOOFER
WOOFER
Description
INFOID:0000000001469756
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:0000000001469757
1.
VERIFY SUBWOOFER POWER AND GROUND SUPPLY
Check power and ground supply to the subwoofer. Refer to
AV-182, "WOOFER : Diagnosis Procedure"
Did the power and ground supply check OK?
YES
>> GO TO 2
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.
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 test results as specified?
YES
>> GO TO 3
NO
>> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
3.
SUBWOOFER AMP ON SIGNAL CHECK
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 4
NO
>> Replace BOSE speaker amp. Refer to
AV-428, "Removal and Installation"
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
(+)
(-)
Voltage
Connector
Terminal
B72
4
Ground
Battery voltage
ALNIA0540GB
AV
WOOFER
AV-365
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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4.
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-III or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace subwoofer. Refer to
AV-429, "Removal and Installation"
NO
>> GO TO 5
5.
HARNESS CHECK
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector M42 and BOSE speaker
amp. connector B75.
3.
Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector B75 (B).
4.
Check continuity between AV control unit harness connector
M42 (A) and ground.
Are the continuity test results as specified?
YES
>> GO TO 6
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
6.
BACK DOOR SPEAKER SIGNAL CHECK
Connector
Terminals
Condition
Reference
signal
(+)
(-)
B74
19
3
Receive au-
dio signal
ALNIA0879GB
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M42
4
B75
26
Yes
5
25
13
24
14
23
A
—
Continuity
Connector
Terminal
M42
4
Ground
No
5
13
14
ALNIA0551GB
AV-366
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
WOOFER
1.
Connect AV control unit connector M42 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
M42 terminals with CONSULT-III 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
(+)
(-)
M42
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
AV
AMP ON SIGNAL CIRCUIT
AV-367
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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AMP ON SIGNAL CIRCUIT
Description
INFOID:0000000001470307
When the audio system is turned on, a voltage signal is supplied from the AV control unit to the BOSE speaker
amp. When this signal is received, the BOSE speaker amp. will turn on.
Diagnosis Procedure
INFOID:0000000001470308
1.
CHECK AMP ON SIGNAL (BOSE SPEAKER AMP)
1.
Turn audio system ON.
2.
Check voltage between BOSE speaker amp. harness connector
B75 terminal 31 and ground.
Is battery voltage present?
YES
>> Inspection End.
NO
>> GO TO 2
2.
CHECK AMP ON SIGNAL (AV CONTROL UNIT)
Check voltage between AV control unit harness connector M69 ter-
minal 110 and ground.
Is battery voltage present?
YES
>> Repair harness or connector.
NO
>> Replace AV control unit. Refer to
31 - Ground
: Battery voltage
ALNIA0539GB
110 - Ground
: Battery voltage
ALNIA0370GB
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