Nissan Pathfinder (2008 year). Manual - part 56

AV-288

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

NAVIGATION SYSTEM

GPS (Global Positioning System) has been developed and con-
trolled by the US Department of Defense. The system utilizes GPS
satellite (NAVSTAR), sending out radio waves while flying on an orbit
around the earth at the height of approx. 21,000 km (13,000 miles).
The GPS receiver calculates the vehicle's position in three dimen-
sions (latitude/longitude/altitude) according to the time lag of the
radio waves received from four or more GPS satellites (three-dimen-
sional positioning). If radio waves were received only from three
GPS satellites, the GPS receiver calculates the vehicle's position in
two dimensions (latitude/longitude), utilizing the altitude data calcu-
lated previously by using radio waves from four or more GPS satel-
lites (two-dimensional positioning).
Accuracy of the GPS will deteriorate under the following conditions.
• In two-dimensional positioning, the GPS accuracy will deteriorate when the altitude of the vehicle position

changes.

• There may be an error of approximately 10 m (30 ft.) in position detected by three-dimensional positioning,

which is more accurate than two-dimensional positioning. The accuracy can be even lower depending on the
arrangement of the GPS satellites utilized for the positioning.

• Position detection is not possible when the vehicle is in an area where radio waves from the GPS satellite do

not reach, such as in a tunnel, parking lot in a building, and under an elevated highway. Radio waves from
the GPS satellites may not be received when some object is located over the GPS antenna.

• Position correction by GPS is not available while the vehicle is stopped.

Component Parts Location

INFOID:0000000001450535

Refer to 

AV-284, "Component Parts Location"

.

Component Description

INFOID:0000000001450536

SEL526V

Part name

Description

AV control unit

• Controls each operation of the navigation system
• DVD-ROM drive is built in
• Voice guidance signal is output to BOSE speaker amp.

BOSE speaker amp.

Voice guidance signal is input from AV control unit, and it is output to speakers.

Tweeter

Voice guidance signal from BOSE speaker amp. is output.

Steering switches

• Each operation of navigation system can be performed
• Switch operating signal is output to AV control unit

Microphone

Sends voice signals to AV control unit

GPS antenna

GPS signal is received and is output to AV control unit.

AV

REAR VIEW MONITOR SYSTEM

AV-289

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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REAR VIEW MONITOR SYSTEM

System Diagram

INFOID:0000000001450537

System Description

INFOID:0000000001450538

When the selector is in the R position, the display shows a view to the rear of the vehicle. Lines which indicate
the vehicle clearance and distances are also displayed.

AV COMMUNICATION LINE

The rear view camera control unit is connected to the audio control unit using an AV communication line. This
line is used to transmit and receive data.

Component Parts Location

INFOID:0000000001450539

Refer to 

AV-284, "Component Parts Location"

.

Component Description

INFOID:0000000001450540

AWNIA0132GB

Part name

Description

AV control unit

Camera image signal is sent from rear view camera control unit

Rear view camera control unit

• Receives reverse signal from back-up lamp relay
• Receives rear view camera image signal
• Sends camera ON signal to rear view camera
• Sends image signal to AV control unit

Rear view camera

• Receives camera ON signal from rear view camera control unit
• Sends image signal to rear view camera control unit

AV-290

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

DVD PLAYER

DVD PLAYER

System Diagram

INFOID:0000000001450541

System Description

INFOID:0000000001450542

The DVD entertainment system consists of the following components
• AV control unit
• Display unit
• DVD player
• Video monitor
• A/C and AV switch assembly
• Steering wheel AV control switches
• BOSE speaker amp.
• Front tweeters
• Front door speakers
• Rear tweeters
• Rear door speakers
• Subwoofer
When the DVD entertainment system is on, video signals are sent from the DVD player to the video monitor.
Audio signals are sent to the AV control unit. Audio signals can be directed through wireless infrared head-
phones or through the BOSE speaker amp. to the vehicle speakers. Refer to the Owner's Manual for complete
DVD entertainment system operating instructions. 

ALNIA0561GB

AV

DVD PLAYER

AV-291

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Component Parts Location

INFOID:0000000001450543

Component Description

INFOID:0000000001450544

1.

Steering wheel audio control switches

2.

AV control unit M42, M45, M46, M70, 
M72

3.

A/C and AV switch assembly M98

4.

Display unit M93

5.

DVD player M205 (located in center 
console)

6.

Infrared headphone and remote re-
ceiver/transmitter (part of video moni-
tor assembly)

7.

Video monitor B76

ALNIA0558GB

Part name

Description

DVD player

• Outputs DVD video to video monitor
• Outputs DVD audio to the AV control unit

Video monitor

• Receives and displays the DVD video signal

AV control unit

• Controls audio system and DVD entertainment system functions

BOSE speaker amp.

• Recieves audio signals from the AV control unit
• Outputs amplified audio signals to the speakers

A/C and AV switch assembly

• All audio and A/C operations can be operated
• Switch signal is output to the AV control unit and A/C auto amp

Steering wheel audio control switches

• Audio operation can be operated
• Steering switch signal (operation signal) is output to AV control unit

Front door speakers

• Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds

Front and rear tweeters

• Outputs audio signal from BOSE speaker amp.
• Outputs high range sounds

AV-292

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

DVD PLAYER

Rear door speakers

• Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds

Subwoofer

• Outputs audio signal from BOSE speaker amp.
• Outputs low range sounds

Part name

Description

AV

HANDS-FREE PHONE SYSTEM

AV-293

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HANDS-FREE PHONE SYSTEM

System Diagram

INFOID:0000000001450545

System Description

INFOID:0000000001450546

Refer to the Owner's Manual for Bluetooth telephone system operating instructions.
NOTE:
Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth telephone
system.
Bluetooth telephone system allows users who have a Bluetooth equipped cellular telephone to make a wire-
less connection between their cellular telephone and the AV control unit. Hands-free cellular telephone calls
can be sent and received. Personal memos can be created using the Nissan Voice Recognition system. Some
Bluetooth cellular telephones may not be recognized by the AV control unit. When a cellular telephone or the
AV control unit is replaced, the telephone must be paired with the AV control unit. Different cellular telephones
may have different pairing procedures. Refer to the cellular telephone operating manual and the vehicle
Owner's Manual for more information.

AV CONTROL UNIT

When the ignition switch is turned to ACC or ON, the AV control unit will power up. During power up, the Blue-
tooth feature is initialized and performs various self checks.   Initialization may take up to 10 seconds.  If a
phone is present in the vehicle and paired with the AV control unit, Nissan Voice Recognition will then become
active. Bluetooth telephone functions can be turned off using the Nissan Voice Recognition system.

STEERING WHEEL AUDIO CONTROL SWITCHES

When buttons on the steering wheel audio control switch are pushed, the resistance in steering wheel audio
control switch circuit changes depending on which button is pushed. The AV control unit uses this signal to
perform various functions while navigating through the voice recognition system.
The following functions can be performed using the steering wheel audio control switch:
• Initiate Self Diagnosis of the Bluetooth telephone system
• Start a voice recognition session
• Answer and end telephone calls
• Adjust the volume of calls
• Record memos

MICROPHONE

The microphone is located in the roof console assembly. The microphone sends a signal to the AV control unit.
The microphone can be actively tested during self-diagnosis.

Component Parts Location

INFOID:0000000001450547

Refer to 

AV-284, "Component Parts Location"

.

Component Description

INFOID:0000000001450548

AWNIA0131GB

Part name

Description

AV control unit

• Receives telephone voice signal from Antenna and Microphone
• Sends telephone voice and voice guidance signals to the speakers

BOSE speaker amp.

• Recieves audio signals from the AV control unit
• Outputs amplified audio signals to the speakers.

AV-294

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

HANDS-FREE PHONE SYSTEM

Front door speaker

Receives telephone voice and voice guidance signals from the AV control unit 
through the BOSE speaker amp.

Front tweeter

Steering switches

• Start a voice recognition session
• Answer and end telephone calls
• Adjust the volume level

Microphone

Sends voice signals to Bluetooth control unit

Bluetooth antenna

Sends telephone voice signal to Bluetooth control unit

Part name

Description

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-295

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV CONTROL UNIT

AV CONTROL UNIT : Diagnosis Description

INFOID:0000000001450549

DESCRIPTION 

• Diagnosis function consists of the "Self-Diagnosis" mode performed automatically and the "Confirmation/

Adjustment" mode operated manually.

• "Self-Diagnosis" mode checks for connections between the units constituting this system, analyzes each

individual unit at the same time, and displays the results on the LCD screen.

• "Confirmation/Adjustment" mode is used to perform trouble diagnosis that requires operation and judgment

by an operator (trouble that cannot be automatically judged by the system), to check/change the set value,
and to display the error history of the AV control unit.

DIAGNOSIS ITEM 

Mode

Description

Self-diagnosis

• AV control unit diagnosis
• Analyzes connection between the AV control unit, front display, 

switches, DVD deck, GPS antenna, rear view camera control unit and 
SAT antenna.