Nissan Pathfinder (2006 year). Manual — part 68
AUDIO
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AV
2006 Pathfinder
FOR RADIO ONLY
NOTE:
The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
●
Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.
●
Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves which reflect off mountains or buildings.
FOR CD ONLY
Poor sound
●
Audio unit
●
BOSE speaker amp.
●
Speaker
Noisy
●
Audio unit
●
BOSE speaker amp.
●
Electrical equipment (generator, bonding wire, etc.)
Symptom
Possible cause
Symptom
Possible cause
No sound
●
Audio unit
●
Antenna feeder, wiring or connections
●
Antenna amplifier, power supply, wiring or connections
Noisy
●
Audio unit
●
Audio unit case ground
●
Antenna feeder, wiring or connections
●
Antenna amplifier, power supply, wiring or connections
●
Noise prevention parts
●
Electrical equipment
●
Wire harness of each piece of electrical equipment
All radio stations stored in memory are deleted
●
Audio unit power circuit. Refer to
●
Audio unit
Symptom
Possible cause
CD cannot be inserted.
●
CD
●
Audio unit
CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.
AV-36
AUDIO
2006 Pathfinder
FOR SATELLITE RADIO TUNER (FACTORY INSTALLED) ONLY
NOTE:
In vehicles equipped with NAVI, when pressing the SAT button, the display unit will display `NO SAT' when the
following conditions exist:
●
Loss of power to the satellite radio tuner
●
Open or short in the REQ1, TXD, or RXD circuits.
If the satellite antenna is disconnected or inoperative, the display unit will display ANTENNA.
Noise Inspection
EKS00G5L
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Symptom
Possible cause
Inoperative
●
Satellite radio tuner (factory installed) power and ground circuit inspection.
Refer to
AV-39, "Satellite Radio Tuner (Factory Installed) Power and Ground
●
Satellite radio tuner (factory installed) communication circuit inspection.
Refer to
AV-40, "Satellite Radio Tuner (Factory Installed) Communication
.
If above check is OK, replace satellite radio tuner. Refer to
.
Right or left channel does not sound
●
Satellite radio tuner (factory installed) right channel audio signal circuit
inspection. Refer to
AV-43, "Satellite Radio Tuner (Factory Installed) Right
Channel Audio Signal Circuit Inspection"
.
●
Satellite radio tuner (factory installed) left channel audio signal circuit
inspection. Refer to
AV-42, "Satellite Radio Tuner (Factory Installed) Left
Channel Audio Signal Circuit Inspection"
.
If above check is OK, replace satellite radio tuner. Refer to
.
Poor reception
●
Location of vehicle. Make certain vehicle is in an open area.
●
Satellite radio antenna or antenna feeder. Refer to
Noisy
●
Satellite radio tuner (factory installed) ground.
●
Satellite radio tuner (factory installed) harness shield wires.
●
Electrical equipment (generator, bonding wire, etc.). Refer to
.
Occurrence condition
Possible cause
Occurs only when engine is ON.
A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.
●
Ignition components
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is
running and the lighting switch is ON.
●
Generator
The occurrence of the noise is linked with the operation of the fuel pump.
●
Fuel pump condenser
Noise only occurs when various
electrical components are oper-
ating.
A cracking or snapping sound occurs with the
operation of various switches.
●
Relay malfunction, audio unit malfunction
The noise occurs when various motors are operat-
ing.
●
Motor case ground
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Motor
AUDIO
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AV
2006 Pathfinder
Power Supply Circuit Inspection
EKS00G5M
1.
CHECK FUSES
Check that the following fuses are not blown.
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to
"POWER SUPPLY ROUTING CIRCUIT"
The noise occurs constantly, not just under certain conditions.
●
Rear defogger coil malfunction
●
Open circuit in printed heater
●
Poor ground of antenna amplifier or
antenna feeder line
A cracking or snapping sound occurs while the vehicle is being driven, especially
when it is vibrating excessively.
●
Ground wire of body parts
●
Ground due to improper part installation
●
Wiring connections or a short circuit
Occurrence condition
Possible cause
Unit
Terminals
Signal name
Fuse No.
Audio unit
6
Battery power
29
10
Ignition switch ACC or ON
4
AV switch
1
Battery power
29
2
Ignition switch ACC or ON
4
BOSE speaker amp. (with BOSE)
1
Battery power
29
Display control unit
12
Ignition switch ON or START
12
Subwoofer (BOSE system)
6
Battery power
17
AV-38
AUDIO
2006 Pathfinder
2.
POWER SUPPLY CIRCUIT CHECK
1.
Disconnect audio unit connector M43, subwoofer connector B72 (with BOSE) and BOSE speaker amp.
connector B74 (with BOSE).
2.
Check voltage between the audio unit and ground.
3.
Check voltage between subwoofer (BOSE system) and ground.
4.
Check voltage between BOSE speaker amp. (with BOSE) and ground.
OK or NG
OK
>> GO TO 3.
NG
>>
●
Check connector housings for disconnected or loose
terminals.
●
Repair harness or connector.
3.
GROUND CIRCUIT CHECK
Check continuity between subwoofer (BOSE system) harness con-
nector B72 terminal 5 and BOSE speaker amp. (with BOSE) harness
connector B74 terminal 17 and ground.
OK or NG
OK
>> Inspection End.
NG
>>
●
Check connector housings for disconnected or loose
terminals.
●
Repair harness or connector.
Unit
Terminal No.
OFF
ACC
ON
(+)
(-)
Connector
Terminal
Audio unit
M43
6
Ground
Battery
voltage
Battery
voltage
Battery
voltage
10
Ground
0V
Battery
voltage
Battery
voltage
WKIA3228E
Unit
Terminal No.
OFF
ACC
ON
(+)
(-)
Connector
Terminal
Sub-
woofer
B72
6
Ground
Battery
voltage
Battery
voltage
Battery
voltage
WKIA3229E
Unit
Terminal No.
OFF
ACC
ON
(+)
(-)
Connector
Terminal
BOSE
speaker
amp.
B74
1
Ground
Battery
voltage
Battery
voltage
Battery
voltage
WKIA3230E
Continuity should exist.
WKIA3231E
AUDIO
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AV
2006 Pathfinder
Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit
Inspection
EKS00HK9
1.
CHECK FUSES
●
Check that the following fuses are not blown.
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to
"POWER SUPPLY ROUTING CIRCUIT"
2.
POWER SUPPLY CIRCUIT CHECK
1.
Turn ignition switch OFF.
2.
Disconnect satellite radio tuner (factory installed) M41 connector.
3.
Check voltage between the satellite radio tuner (factory installed) and ground.
OK or NG
OK
>> GO TO 3.
NG
>>
●
Check connector housings for disconnected or loose
terminals.
●
Repair harness or connector.
3.
GROUND CIRCUIT CHECK
1.
Turn ignition switch OFF.
2.
Inspect satellite radio tuner (factory installed) case ground.
3.
Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
4.
Check continuity between satellite radio tuner (factory installed) and audio unit.
OK or NG
OK
>> Inspection End.
NG
>>
●
Check connector housings for disconnected or loose
terminals.
●
Repair harness, connector or satellite radio tuner (fac-
tory installed) case ground.
Unit
Terminals
Signal name
Fuse No.
Satellite radio tuner (factory
installed)
32
Battery power
17
36
Ignition switch ACC or ON
4
Unit
Terminal No.
OFF
ACC
ON
(+)
(-)
Connector
Terminal
Satellite
radio tuner
(factory
installed)
M41
32
Ground
Battery
voltage
Battery
voltage
Battery
voltage
36
Ground
0V
Battery
voltage
Battery
voltage
WKIA4539E
Terminals
Continuity
Satellite radio tuner
Audio unit
Connector
Terminal
Connector
Terminal
A: M41
25
B: M42
45
Yes
26
46
WKIA4540E
AV-40
AUDIO
2006 Pathfinder
Satellite Radio Tuner (Factory Installed) Communication Circuit Inspection
EKS00HKA
1.
CHECK HARNESS - 1
1.
Turn ignition switch OFF.
2.
Disconnect satellite radio tuner (factory installed) connector M41 and audio unit connector M42.
3.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and audio unit harness
connector M42 (B) terminal 48
4.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
2.
CHECK HARNESS - 2
1.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and audio unit harness
connector M42 (B) terminal 49
2.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK HARNESS - 3
1.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and audio unit harness
connector M42 (B) terminal 50
2.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair harness or connector.
Continuity should exist.
Continuity should not exist.
WKIA4541E
Continuity should exist.
Continuity should not exist.
WKIA4542E
Continuity should exist.
Continuity should not exist.
WKIA4543E
AUDIO
AV-41
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AV
2006 Pathfinder
4.
CHECK REQ1 SIGNAL
1.
Connect satellite radio tuner (factory installed) connector and audio 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-ll or
oscilloscope.
OK or NG
OK
>> GO TO 5.
NG
>> Replace audio unit. Refer to .
AV-61, "AUDIO UNIT - WITHOUT NAVI"
.
5.
CHECK TXD SIGNAL
1.
Check signal between satellite radio tuner (factory installed) har-
ness connector M41 terminal 29 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK
>> GO TO 6.
NG
>> Replace audio unit. Refer to
AV-61, "AUDIO UNIT - WITHOUT NAVI"
.
6.
CHECK RXD SIGNAL
1.
Check signal between satellite radio tuner (factory installed) har-
ness connector M41 terminal 30 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK
>> Replace satellite radio tuner. Refer to
NG
>> Replace audio unit. Refer to
AV-61, "AUDIO UNIT - WITHOUT NAVI"
.
28 - Ground
: Refer to
and Reference Value for Sat-
ellite Radio Tuner"
.
WKIA4544E
29 - Ground
: Refer to
and Reference Value for Sat-
ellite Radio Tuner"
.
WKIA4545E
30 - Ground
: Refer to
and Reference Value for Sat-
ellite Radio Tuner"
.
WKIA4546E
AV-42
AUDIO
2006 Pathfinder
Satellite Radio Tuner (Factory Installed) Left Channel Audio Signal Circuit
Inspection
EKS00HKB
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
3.
Check continuity between satellite radio tuner (factory installed) and audio unit.
4.
Check continuity between satellite radio tuner (factory installed)
and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
2.
CHECK LEFT CHANNEL AUDIO SIGNAL
1.
Connect satellite radio tuner (factory installed) and audio unit.
2.
Turn ignition switch ON.
3.
Check signal between satellite radio tuner (factory installed)
connector M41 terminals 21 and 22 with CONSULT-ll or oscillo-
scope.
OK or NG
OK
>> Replace satellite radio tuner. Refer to
NG
>> Replace audio unit. Refer to
or
AV-61, "AUDIO UNIT - WITHOUT NAVI"
.
Terminals
Continuity
Satellite radio tuner
Audio unit
Connector
Terminal
Connector
Terminal
A: M41
21
B: M42
41
Yes
22
42
Terminals
Continuity
Satellite radio tuner
—
Connector
Terminal
A: M41
21
Ground
No
22
WKIA4547E
21 - 22
: Refer to
and Reference Value for Sat-
ellite Radio Tuner"
WKIA4548E
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