Nissan Pathfinder (2009 year). Instruction — part 40
AV-132
< ECU DIAGNOSIS >
[MID AUDIO]
SATELLITE RADIO TUNER
30
(L)
Ground
Communication signal
(CONT
→
SAT)
Input
Ignition
switch
ON
When satellite radio mode
is selected
32
(R/B)
Ground
Battery power supply
Input
Ignition
switch
OFF
—
Battery voltage
36
(G/B)
Ground
ACC power supply
Input
Ignition
switch
ACC
—
Battery voltage
37
—
Satellite antenna
Input
—
—
—
Terminal
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIA9301J
2009 Pathfinder
AV
REAR VIEW CAMERA CONTROL UNIT
AV-133
< ECU DIAGNOSIS >
[MID AUDIO]
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L
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B
A
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REAR VIEW CAMERA CONTROL UNIT
Reference Value
INFOID:0000000003939023
TERMINAL LAYOUT
PHYSICAL VALUES
WKIA5224E
Terminal
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
1
(R/B)
Ground
Battery power
Input
Ignition
switch
OFF
—
Battery voltage
2
(G/R)
Ground
ACC power
Input
Ignition
switch
ACC
—
Battery voltage
3
(B)
Ground
Ground
—
Ignition
switch
ON
—
0V
4
(LG)
Ground
Reverse signal input
Input
Ignition
switch
ON
A/T selector lever R
position
Battery voltage
A/T selector lever in
other than R position
0V
5
(BR)
Ground
AV Control
Output
Ignition
switch
ON
—
0V
6
(W)
Ground
DDL
Output
—
—
—
8
(Y)
Ground
Camera power output
Output
Ignition
switch
ON
A/T selector lever R
position
6V
9
Ground
Camera image input (–)
Input
Ignition
switch
ON
—
0V
10
(G)
Ground
Camera image input (+)
Input
Ignition
switch
ON
A/T selector lever R
position
SKIA4894E
2009 Pathfinder
AV-134
< 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
2009 Pathfinder
AV
DVD PLAYER
AV-135
< ECU DIAGNOSIS >
[MID AUDIO]
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DVD PLAYER
Reference Value
INFOID:0000000003939024
PHYSICAL VALUES
AWNIA1780ZZ
Terminal
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
1
(B)
2
(W)
DVD audio signal LH
Output
Ignition
switch
ON
With operation of the DVD
player
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
2009 Pathfinder
AV-136
< 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
—
32
(LG)
—
Data transmit
Output
—
—
—
Terminal
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3609E
SKIB2251J
2009 Pathfinder
AV
AUDIO SYSTEM
AV-137
< SYMPTOM DIAGNOSIS >
[MID AUDIO]
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SYMPTOM DIAGNOSIS
AUDIO SYSTEM
Symptom Table
INFOID:0000000003939025
AUDIO SYSTEM
CD
SATELLITE RADIO
DVD PLAYER
Symptom
Possible cause
Reference page
Inoperative
• AV control unit power circuit
• AV control unit
•
•
Steering wheel audio control switch does not operate
• Steering wheel audio control 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
•
•
•
2009 Pathfinder
AV-138
< SYMPTOM DIAGNOSIS >
[MID AUDIO]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
Description
INFOID:0000000003939026
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
2009 Pathfinder
AV
PRECAUTIONS
AV-139
< PRECAUTION >
[MID AUDIO]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004857478
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 SR and SB section of this Service Man-
ual.
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 SR section.
• 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.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000004414791
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″
LOCK
″
position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Use the Intelligent Key or mechanical key to turn the ignition switch to the
″
ACC
″
position. At this time, the
steering lock will be released.
3.
Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4.
Perform the necessary repair operation.
2009 Pathfinder
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