Nissan Pathfinder (2012 year). Manual - part 58

 

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Nissan Pathfinder (2012 year). Manual - part 58

 

 

AV-282

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

NAVIGATION SYSTEM

MAP–MATCHING

Map–matching is a function that repositions the vehicle on the road

map when a new location is judged to be the most accurate. This is

done by comparing the current vehicle position, calculated by the

method described in the position detection principle, with the road

map data around the vehicle, read from the map data stored on the

HDD.

Therefore, the vehicle position may not be corrected after the vehicle

is driven over a certain distance or time in which GPS information is

hard to receive. In this case, the current-location mark on the display

must be corrected manually.

CAUTION:

The road map data is based on data stored on the HDD.

• In map-matching, alternative routes to reach the destination will be

shown and prioritized, after the road on which the vehicle is cur-

rently driven has been judged and the current-location mark has

been repositioned.

If there is an error in distance and/or direction, the alternative

routes will be shown in different order of priority, and the wrong

road can be avoided.

If two roads are running in parallel, they are of the same priority.

Therefore, the current-location mark may appear on either of them

alternately, depending on maneuvering of the steering wheel and

configuration of the road.

• Map-matching does not function correctly when the road on which

the vehicle is driving is new and not recorded on the HDD, or when

the road pattern stored in the map data and the actual road pattern

are different due to repair.

When driving on a road not present in the map, the map-matching

function may find another road and position the current-location

mark on it. Then, when the correct road is detected, the current-

location mark may leap to it.

• Effective range for comparing the vehicle position and travel direc-

tion calculated by the distance and direction with the road data

read from the HDD is limited. Therefore, when there is an exces-

sive gap between the current vehicle position and the position on

the map, correction by map-matching is not possible.

GPS (GLOBAL POSITIONING 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).

Type

Advantage

Disadvantage

Gyroscope (angular velocity sensor)

• Can detect the vehicle's turning angle quite 

accurately.

• Direction errors may accumulate when the ve-

hicle is driven for long distances without stop-
ping.

GPS antenna (GPS information)

• Can detect the vehicle's travel direction 

(North/South/East/West).

• Correct direction cannot be detected when the 

vehicle speed is low.

SEL685V

SEL686V

ALNIA0839GB

SEL526V

August 2012

2012 Pathfinder

AV

NAVIGATION SYSTEM

AV-283

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

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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.

August 2012

2012 Pathfinder

AV-284

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

NAVIGATION SYSTEM

Component Parts Location

INFOID:0000000007347817

1.

Steering wheel audio control switch-
es

2.

Front tweeter LH M109

3.

AV control unit M23, M37, M39, M44, 
M48, M71, M72 

4.

A/C and AV switch assembly M98

5.

Display unit M92

6.

Front tweeter RH M111

AWNIA2301ZZ

August 2012

2012 Pathfinder

AV

NAVIGATION SYSTEM

AV-285

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

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Component Description

INFOID:0000000007347818

7.

Aux. jack M85

8.

Compact Flash insert slot

9.

Front door speaker
LH D12
RH D112

10. Rear door speaker

LH D207
RH D307

11. Rear tweeter

LH D208
RH D308

12. Subwoofer B72

13. BOSE speaker amp B74, B75 (locat-

ed under driver seat)

14. Rear view camera  D551

15. Microphone R8

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 wheel audio control 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.

August 2012

2012 Pathfinder

AV-286

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

REAR VIEW MONITOR SYSTEM

REAR VIEW MONITOR SYSTEM

System Diagram

INFOID:0000000007347819

System Description

INFOID:0000000007347820

When the shift selector is in the R position, the display unit receives camera image signals from the rear view

camera which shows a view to the rear of the vehicle. Lines which indicate the vehicle clearance and dis-

tances are also displayed.

AWNIA2302GB

August 2012

2012 Pathfinder

AV

REAR VIEW MONITOR SYSTEM

AV-287

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

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Component Parts Location

INFOID:0000000007347821

1.

Steering wheel audio control switch-
es

2.

Front tweeter LH M109

3.

AV control unit M23, M37, M39, M44, 
M48, M71, M72 

4.

A/C and AV switch assembly M98

5.

Display unit M92

6.

Front tweeter RH M111

AWNIA2301ZZ

August 2012

2012 Pathfinder

AV-288

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

REAR VIEW MONITOR SYSTEM

Component Description

INFOID:0000000007347822

7.

Aux. jack M85

8.

Compact Flash insert slot

9.

Front door speaker
LH D12
RH D112

10. Rear door speaker

LH D207
RH D307

11. Rear tweeter

LH D208
RH D308

12. Subwoofer B72

13. BOSE speaker amp B74, B75 (locat-

ed under driver seat)

14. Rear view camera  D551

15. Microphone R8

Part name

Description

AV control unit

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

Rear view camera

• Receives camera ON signal from AV control unit
• Sends image signal to the display unit

Display unit

• Receives image signal from rear view camera

August 2012

2012 Pathfinder

AV

DVD PLAYER

AV-289

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

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DVD PLAYER

System Diagram

INFOID:0000000007347823

System Description

INFOID:0000000007347824

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 audio 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

August 2012

2012 Pathfinder

 

 

 

 

 

 

 

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