Nissan Pathfinder (2009 year). Instruction — part 73
AV-396
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
SUBWOOFER
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-462, "Removal and Installation"
NO
>> GO TO 5
5.
HARNESS CHECK
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector M39 and BOSE speaker
amp. connector B75.
3.
Check continuity between AV control unit harness connector
M39 (A) and BOSE speaker amp. harness connector B75 (B).
4.
Check continuity between AV control unit harness connector
M39 (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
M39
4
B75
26
Yes
5
25
13
24
14
23
A
—
Continuity
Connector
Terminal
M39
4
Ground
No
5
13
14
ALNIA0551GB
2009 Pathfinder
AV
SUBWOOFER
AV-397
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
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B
A
O
P
1.
Connect AV control unit connector M39 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
M39 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
(+)
(-)
M39
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
2009 Pathfinder
AV-398
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
AMP ON SIGNAL CIRCUIT
AMP ON SIGNAL CIRCUIT
Description
INFOID:0000000003939266
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:0000000003939267
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 M39 ter-
minal 1 and ground.
Is battery voltage present?
YES
>> Repair harness or connector.
NO
>> Replace AV control unit. Refer to
(+)
(-)
Value (Approx.)
Connector
Terminal
B75
31
Ground
Battery Voltage
ALNIA0539GB
(+)
(-)
Value (Approx.)
Connector
Terminal
M39
1
Ground
Battery Voltage
ALNIA1185ZZ
2009 Pathfinder
AV
STEERING SWITCH
AV-399
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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STEERING SWITCH
Description
INFOID:0000000003939268
When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio
control switch circuit changes depending on which button is pushed.
Diagnosis Procedure
INFOID:0000000003939269
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-468, "Removal and Installation"
.
2.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector M39 and spiral cable con-
nector M30.
3.
Check continuity between AV control unit harness connector
M39 (A) and spiral cable harness connector M30 (B).
4.
Check continuity between AV control unit connector M39 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 3
NO
>> Repair harness.
Terminal
Signal name
Condition
Resistance
(
Ω
)
(Approx.)
16
17
Seek (down)
Depress
switch.
165
Volume (down)
Depress VOL down switch.
487
Phone/Send
Depress
switch.
0
20
17
Seek (up)
Depress
switch.
165
Volume (up)
Depress VOL up switch.
487
Mode/End
Depress
switch.
0
WKIA4457E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M39
6
M30
24
Yes
15
31
16
32
A
—
Continuity
Connector
Terminal
M39
6
Ground
No
15
16
ALNIA0332GB
2009 Pathfinder
AV-400
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
STEERING SWITCH
3.
SPIRAL CABLE CHECK
1.
Disconnect spiral cable connector M102.
2.
Check continuity between spiral cable harness connector M30
(A) and M102 (B).
Does continuity exist?
YES
>> Inspection End.
NO
>> Replace spiral cable. Refer to
SR-7, "Removal and Installation"
A
B
Continuity
Connector
Terminal
Connector
Terminal
M30
24
M102
20
Yes
31
17
32
16
AWLIA1602ZZ
2009 Pathfinder
AV
MICROPHONE SIGNAL CIRCUIT
AV-401
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000003939270
Voice signals are transmitted from the microphone to the AV control unit using the microphone signal circuits.
Diagnosis Procedure
INFOID:0000000003939271
1.
VERIFY MICROPHONE POWER AND GROUND SUPPLY
Check power and ground supply to the microphone. Refer to
AV-374, "MICROPHONE : 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.
CHECK HARNESS BETWEEN AV CONTROL UNIT AND MICROPHONE
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and microphone connec-
tor.
3.
Check continuity between AV control unit harness connector
M48 (A) and microphone harness connector R8 (B).
4.
Check continuity between AV control unit harness connector
M48 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK MICROPHONE SIGNAL
Check signal between AV control unit harness connector M48 termi-
nals 74 and 75 with CONSULT-III or oscilliscope.
Are voltage readings as specified?
A
B
Continuity
Connector
Terminal
Connector
Terminal
M48
75
R8
1
Yes
74
2
73
4
A
—
Continuity
Connector
Terminal
M48
75
Ground
No
74
73
AWLIA1682ZZ
Connector
(+)
(-)
Reference signal
Terminal
Terminal
M48
75
74
While speaking into MIC
ALNIA0553GB
PKIB5037J
2009 Pathfinder
AV-402
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
MICROPHONE SIGNAL CIRCUIT
YES
>> Replace AV control unit. Refer to
AV-455, "Removal and Installation"
.
NO
>> Replace microphone. Refer to
AV-469, "Removal and Installation"
.
2009 Pathfinder
AV
AV CONTROL UNIT
AV-403
< ECU DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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ECU DIAGNOSIS
AV CONTROL UNIT
Reference Value
INFOID:0000000003939272
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III data monitor item
TERMINAL LAYOUT
PHYSICAL VALUES
Display Item
Dis-
play
Vehicle status
Remarks
VHCL SPD SIG
ON
Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is
normal.
OFF
Vehicle speed =0 km/h (0 MPH)
PKB SIG
ON
Parking brake is applied.
Changes in indication may be delayed. This is
normal.
OFF
Parking brake is released.
ILLUM SIG
ON
Block the light beam from the auto
light optical sensor when the light
SW is ON.
—
OFF
Expose the auto light optical sensor
to light when the light SW is OFF or
ON.
IGN SIG
ON
Ignition switch ON
—
OFF
Ignition switch in ACC position
REV SIG
ON
Selector lever in R position
Changes in indication may be delayed. This is
normal.
OFF
Selector lever in any position other
than R
AWNIA0148ZZ
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
1
(SB)
Ground
Amp. ON signal
Output
Ignition
switch
ON
—
Battery voltage
2
(BR)
3
(B)
Pre-amp. audio signal front
LH
Output
Ignition
switch
ON
Audio output
SKIB3609E
2009 Pathfinder
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