Nissan Pathfinder (2008 year). Manual — part 46
AV-208
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
WOOFER
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-273, "Removal and Installation"
NO
>> GO TO 5
5.
HARNESS CHECK
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector M69 and BOSE speaker
amp. connector B75.
3.
Check continuity between AV control unit harness connector
M69 (A) and BOSE speaker amp. harness connector B75 (B).
4.
Check continuity between AV control unit harness connector
M69 (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
M69
112
B75
26
Yes
118
25
108
24
114
23
A
—
Continuity
Connector
Terminal
M69
112
Ground
No
118
108
114
ALNIA0538GB
AV
WOOFER
AV-209
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
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F
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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-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
(+)
(-)
M69
112
118
Receive
audio sig-
nal
108
114
ALNIA0356GB
SKIA0177E
AV-210
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
AMP ON SIGNAL CIRCUIT
AMP ON SIGNAL CIRCUIT
Description
INFOID:0000000001450742
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:0000000001450743
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
AV
STEERING SWITCH
AV-211
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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STEERING SWITCH
Description
INFOID:0000000001450744
When one of the steering wheel AV control switches is pushed, the resistance in the steering wheel AV control
switch circuit changes depending on which button is pushed.
Diagnosis Procedure
INFOID:0000000001450745
1.
CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1.
Turn ignition switch OFF.
2.
Disconnect steering wheel audio control switch connector M102.
3.
Check resistance between steering switch connector terminals.
Do the steering wheel audio control switches check OK?
YES
>> GO TO 2
NO
>> Replace steering wheel audio control switch. Refer to
AV-271, "Removal and Installation"
.
2.
CHECK HARNESS
1.
Disconnect AV control unit connector M42 and spiral cable con-
nector M30.
2.
Check continuity between AV control unit harness connector
M42 (A) and spiral cable harness connector M30 (B).
3.
Check continuity between AV control unit connector M42 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 3
NO
>> Repair harness.
3.
SPIRAL CABLE CHECK
Terminal
Signal name
Condition
Resistance
(
Ω
)
(Approx.)
16
17
Seek (down)
Depress
switch.
165
Volume (down)
Depress VOL down switch.
487
Mode
Depress MODE switch.
0
20
17
Seek (up)
Depress
switch.
165
Volume (up)
Depress VOL up switch.
487
Power
Depress PWR switch.
0
WKIA4457E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M42
6
M30
24
Yes
15
31
16
32
A
—
Continuity
Connector
Terminal
M42
6
Ground
No
15
16
ALNIA0332GB
AV-212
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
STEERING SWITCH
1.
Disconnect spiral cable connector M102.
2.
Check continuity between spiral cable harness connector M30
(A) and M102 (B).
Does the spiral cable check OK?
YES
>> Inspection End.
NO
>> Replace spiral cable. Refer to
SR-6, "Removal and Installation"
Spiral cable
Continuity
Connector
Terminal
Connector
Terminal
M30
24
M102
20
Yes
31
17
32
16
ALNIA0333GB
AV
COMMUNICATION SIGNAL CIRCUIT
AV-213
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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COMMUNICATION SIGNAL CIRCUIT
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description
INFOID:0000000001450746
Communication signals are exchanged between the AV control unit and satellite radio tuner using the commu-
nication circuits.
SATELLITE RADIO TUNER : Diagnosis Procedure
INFOID:0000000001450747
1.
CHECK HARNESS - 1
1.
Turn ignition switch OFF.
2.
Disconnect satellite radio tuner (factory installed) connector M41
and AV control unit connector M43.
3.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and AV control unit har-
ness connector M43 (B) terminal 28.
4.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and ground.
Are continuity results as specified?
YES
>> GO TO 2
NO
>> Repair harness or connector.
2.
CHECK HARNESS - 2
1.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and AV control unit har-
ness connector M43 (B) terminal 30.
2.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and ground.
Are continuity results as specified?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK HARNESS - 3
A
B
Continuity
Connector
Terminal
Connector
Terminal
M41
28
M43
28
Yes
A
—
Continuity
Connector
Terminal
M41
28
Ground
No
ALNIA0334GB
A
B
Continuity
Connector
Terminal
Connector
Terminal
M41
29
M43
30
Yes
A
—
Continuity
Connector
Terminal
M41
29
Ground
No
ALNIA0335GB
AV-214
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
COMMUNICATION SIGNAL CIRCUIT
1.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and AV control unit har-
ness connector M43 (B) terminal 29.
2.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and ground.
Are continuity results as specified?
YES
>> GO TO 4
NO
>> Repair harness or connector.
4.
CHECK REQ1 SIGNAL
1.
Connect satellite radio tuner (factory installed) connector and AV control unit connector.
2.
Turn ignition switch to ACC
3.
Check signal between satellite radio tuner (factory installed) har-
ness connector M41 terminal 28 and ground with CONSULT-III
or oscilloscope.
Are voltage readings as specified?
YES
>> GO TO 5
NO
>> Replace AV control unit. Refer to
AV-178, "AV CONTROL UNIT : Diagnosis Procedure"
.
5.
CHECK TXD SIGNAL
Check signal between satellite radio tuner (factory installed) harness
connector M41 terminal 29 and ground with CONSULT-III or oscillo-
scope.
Are the voltage readings as specified?
A
B
Continuity
Connector
Terminal
Connector
Terminal
M41
30
M43
29
Yes
A
—
Continuity
Connector
Terminal
M41
30
Ground
Yes
ALNIA0336GB
(+)
(-)
Reference signal
Connector
Terminal
M41
28
Ground
WKIA4544E
SKIB3825E
(+)
(-)
Reference signal
Connector
Terminal
M41
29
Ground
WKIA4545E
SKIB3824E
AV
COMMUNICATION SIGNAL CIRCUIT
AV-215
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
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A
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YES
>> GO TO 6
NO
>> Replace satellite radio tuner.
6.
CHECK RXD SIGNAL
Check signal between satellite radio tuner (factory installed) harness
connector M41 terminal 30 and ground with CONSULT-III or oscillo-
scope.
Are the voltage readings as specified?
YES
>> Replace satellite radio tuner.
NO
>> Replace AV control unit. Refer to
AV-266, "Removal and Installation"
.
(+)
(-)
Reference signal
Connector
Terminal
M41
30
Ground
WKIA4546E
SKIB3826E
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