Nissan Pathfinder (2008 year). Manual — part 36
AV-128
< ECU DIAGNOSIS >
[MID AUDIO]
REAR VIEW CAMERA CONTROL UNIT
11
(W)
Ground
Composite image output (-)
Output
Ignition
switch
ON
A/T selector lever R
position
12
(B)
Ground
Composite image output (+)
Output
Ignition
switch
ON
A/T selector lever R
position
Terminal
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIA4896E
SKIA4896E
AV
DVD PLAYER
AV-129
< ECU DIAGNOSIS >
[MID AUDIO]
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DVD PLAYER
Reference Value
INFOID:0000000001450834
PHYSICAL VALUES
AWNIA0151ZZ
Terminal
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
1
(W)
2
(B)
DVD audio signal LH
Output
Ignition
switch
ON
With operation of the DVD
player
3
(B)
—
Shield
—
—
—
—
5
(B)
Ground
Ground
—
Ignition
switch
ON
—
0V
6
(BR)
Ground
Illumination control (pulse
width modulated)
—
—
With lighting switch ON
—
7
(L)
Ground
CAN communication
Input/
Output
Ignition
switch
ON
—
—
9
(BR)
Ground
Video monitor power sup-
ply
Output
Ignition
switch
ON
With DVD player operation
12V
10
(GR)
Ground
Switch power
Output
Ignition
switch
ON
With DVD player operation
5V
12
(W/L)
Ground
VTR (+)
Output
Ignition
switch
ON
With DVD player operation
—
13
(O/L)
Ground
VTR (-)
Output
Ignition
switch
ON
With DVD player operation
—
14
(Y)
Ground
Display ground
—
Ignition
switch
ON
With DVD player operation
0V
16
(V)
—
Data receive
Input
—
—
—
SKIB3609E
AV-130
< ECU DIAGNOSIS >
[MID AUDIO]
DVD PLAYER
17
(R)
18
(G)
DVD audio signal RH
Output
Ignition
switch
ON
With DVD player operation
21
(Y)
Ground
Battery power
Input
—
—
12V
22
(SB)
Ground
Illumination power
Input
—
With instrument illumination
ON
12V
23
(P)
Ground
CAN communication
Input/
Output
Ignition
switch
ON
—
0V
24
(G/B)
Ground
ACC power
Input
Ignition
switch
ACC or
ON
—
12V
26
(P)
Ground
Ground
Input
Ignition
switch
ON
—
0V
28
(G)
Ground
Video out
Input
Ignition
switch
ACC or
ON
—
30
—
Shield —
—
—
—
32
(LG)
—
Data transmit
Output
—
—
—
Terminal
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3609E
SKIB2251J
AV
AUDIO SYSTEM
AV-131
< SYMPTOM DIAGNOSIS >
[MID AUDIO]
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SYMPTOM DIAGNOSIS
AUDIO SYSTEM
Symptom Table
INFOID:0000000001450835
AUDIO SYSTEM
CD
SATELLITE RADIO
DVD PLAYER
Symptom
Possible cause
Reference page
Inoperative
• AV control unit power circuit
• AV control unit
•
•
Steering switch does not operate
• Steering switch
• AV control unit
•
•
All speakers do not sound
• AV control unit
• AV control unit power circuit
•
•
One or several speakers do not sound
• Front door speaker
• Front tweeter
• Rear door speaker
•
•
•
Symptom
Possible cause
Reference page
CD cannot be inserted.
AV control unit
CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.
Symptom
Possible cause
Reference page
Inoperative
• Satellite radio tuner power or ground circuit
• Satellite radio tuner communication circuit
• Satellite radio tuner
•
•
•
Right or left channel does not sound
• Satellite radio tuner right channel audio signal circuit
• Satellite radio tuner left channel audio signal circuit
• Satellite radio tuner
•
•
•
Symptom
Possible cause
Reference page
DVD player inoperative
• Power supply and ground circuits
• DVD player
•
•
No sound when playing a DVD
• Audio signal circuits
• AV control unit
• DVD player
•
•
•
Video monitor is inoperative/does not display properly
• Power supply and ground circuits
• Video out circuit
• DVD player
• Video monitor
•
•
•
•
DVD remote control is inoperative/does not operate
properly
• DVD player
• Video monitor
•
•
Headphones inoperative
• Headphone batteries
• Headphone audio signal circuits from AV control unit
• AV control unit
• Video monitor
•
•
•
AV-132
< SYMPTOM DIAGNOSIS >
[MID AUDIO]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
Description
INFOID:0000000001450836
The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference,
etc.).
NOISE
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.
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
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
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 op-
eration of various switches.
• Relay malfunction, audio unit malfunction
The noise occurs when various motors are operat-
ing.
• Motor case ground
• Motor
The noise occurs constantly, not just under certain conditions.
• Rear defogger coil malfunction
• Open circuit in printed heater
• Poor ground of 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
AV
PRECAUTIONS
AV-133
< PRECAUTION >
[MID AUDIO]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001731052
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
AV-134
< ON-VEHICLE REPAIR >
[MID AUDIO]
AV CONTROL UNIT
ON-VEHICLE REPAIR
AV CONTROL UNIT
Removal and Installation
INFOID:0000000001316034
AUDIO UNIT - WITHOUT NAVI
1.
Cluster lid C
2.
AV switch assembly
3.
AV control unit
4.
AV control unit brackets
5.
Tuner knob switch
6.
AC switch assembly
7.
Volume knob switch
8.
Volume knob
9.
Temp knobs RH and LH
10. Enter button
11.
Tuner knob
ALNIA0361ZZ
AV
AV CONTROL UNIT
AV-135
< ON-VEHICLE REPAIR >
[MID AUDIO]
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CAUTION:
Only remove and replace the A/C or AV switch assembly knobs if damaged or missing. The knobs
must not be removed from switches when removing and installing the A/C or AV switch assembly to
prevent damage to the switch assembly.
REMOVAL
1.
Disconnect the battery negative terminal.
2.
Remove the cluster lid C. Refer to
IP-10, "Removal and Installation"
3.
Remove the AV control unit screws, using a power tool.
4.
Remove the AV control unit.
5.
Remove the A/C and AV switch assembly screws, then remove the A/C and AV switch assemblies as nec-
essary.
INSTALLATION
Installation is in the reverse order of removal.
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