Nissan Pathfinder (2007 year). Instruction — part 70
AUDIO
AV-33
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AV
2007 Pathfinder
AV Switch Self-Diagnosis Function
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It can check ON/OFF operation of each switch in the AV switch (with NAVI) or audio unit (without NAVI) and
diagnose the input signals from the steering switch.
STARTING THE SELF-DIAGNOSIS MODE (MID LEVEL SYSTEM)
1.
Turn ignition switch from OFF to ACC.
2.
Press and hold the “DISP/CLOCK” switch and turn the volume control dial clockwise or counterclockwise
for 30 clicks or more.
Then the self-diagnosis operates. A single beep indicates self-diagnosis mode is active.
3.
Initially, all display segments will be illuminated.
4.
Press each switch. When each switch is pressed, its name and communication code will be displayed.
NOTE:
CD player LOAD and EJECT buttons are not included in this test and will not change the display when
pressed.
STARTING THE SELF-DIAGNOSIS MODE (BOSE SYSTEM WITH NAVI)
1.
Turn ignition switch from OFF to ACC.
2.
Within 10 seconds press and hold the switches “SCAN/RPT”
and "DISP" simultaneously for 3 seconds.
Then the self-diagnosis operates. A single beep indicates self-
diagnosis mode is active.
3.
Press each switch and listen for beep.
NOTE:
CD player LOAD and EJECT buttons are not included in this test
and will not beep when pressed.
EXITING THE SELF-DIAGNOSIS MODE
Turn ignition switch OFF. Then the self-diagnosis ends.
DIAGNOSIS FUNCTION
●
It can check for continuity of the switches by sounding the beep when each AV switch and steering switch
is pressed.
●
It can check for continuity of harness between AV switch and steering switch.
WKIA5819E
WKIA5820E
AV-34
AUDIO
2007 Pathfinder
Trouble Diagnosis
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The majority of the audio troubles are the result of outside causes (bad CD, electromagnetic interference,
etc.). Check the inspection items below to diagnose the malfunction.
MALFUNCTION WITH RADIO AND CD (BASE AND MID LEVEL SYSTEM)
MALFUNCTION WITH RADIO AND CD (BOSE SYSTEM)
Before proceeding on models with NAVI, confirm that other AV switch functions (except audio functions) oper-
ate. If not, refer to
AV-145, "Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)"
Symptom
Possible cause
Inoperative
●
Audio unit power circuit check. Refer to
If above check is OK, replace audio unit.
Steering switch does not operate (with mid level
audio system)
●
Steering switch check. Refer to
AV-45, "Steering Switch Check (Without
.
If above check is OK, replace audio unit.
All speakers do not sound
●
Audio unit
One or several speakers do not sound
●
Front door speaker check. Refer to
AV-47, "Sound Is Not Heard From Front
Door Speaker or Front Tweeter (Base and Mid Level System)"
●
Rear door speaker check. Refer to
AV-49, "Sound Is Not Heard From Rear
Door Speaker (Base and Mid Level System)"
Poor sound
●
Audio unit
●
Speaker
Noisy
●
Audio unit
●
Electrical equipment (generator, bonding wire, etc.)
●
Open in shield circuit
Symptom
Possible cause
Inoperative
●
Audio unit power circuit check. Refer to
●
Audio communication line check (with Navigation System). Refer to
"Audio Communication Line Check (Between Display Control Unit and
Audio Unit)"
●
AV switch check. Refer to
AV-46, "AV Switch Check (With NAVI)"
If above check is OK, replace audio unit.
Steering switch does not operate
●
Steering switch check. Refer to
AV-43, "Steering Switch Check (With NAVI)"
.
●
AV switch check. Refer to
AV-46, "AV Switch Check (With NAVI)"
●
Audio communication line check (with Navigation System). Refer to
"Audio Communication Line Check (Between Display Control Unit and
Audio Unit)"
If above check is OK, replace audio unit.
Audio information is not displayed on screen (with
NAVI)
●
Display unit check. Refer to
AV-104, "Self-Diagnosis Mode (DCU)"
.
All speakers do not sound
●
Audio unit
●
BOSE speaker amp. power supply and ground circuit check. Refer to
"Power Supply Circuit Inspection"
●
BOSE speaker amp. ON signal
●
BOSE speaker amp.
One or several speakers do not sound
●
Front door speaker check. Refer to
AV-51, "Sound Is Not Heard From Front
Door Speaker or Front Tweeter (BOSE System)"
.
●
Rear door speaker check. Refer to
AV-55, "Sound Is Not Heard From Rear
Door Speaker or Rear Door Tweeter (BOSE System)"
●
AUDIO
AV-35
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AV
2007 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.)
●
Open in shield circuit
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
●
Open in shield circuit
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
2007 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
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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
●
Open in shield circuit
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
●
Motor
AUDIO
AV-37
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AV
2007 Pathfinder
Power Supply Circuit Inspection
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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 blown fuse before installing new fuse. Refer to
4, "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
2007 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
AV-39
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AV
2007 Pathfinder
Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit
Inspection
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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 blown fuse before installing new fuse. Refer to
4, "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
2007 Pathfinder
Satellite Radio Tuner (Factory Installed) Communication Circuit Inspection
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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
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