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Nissan Pathfinder (2007 year). Manual - part 75

DVD ENTERTAINMENT SYSTEM

AV-73

2007 Pathfinder

WKWA2002E

AV-74

DVD ENTERTAINMENT SYSTEM

2007 Pathfinder

WKWA5386E

DVD ENTERTAINMENT SYSTEM

AV-75

2007 Pathfinder

Trouble Diagnosis

EKS00G69

Symptom

Possible causes

Repair order

DVD player inoperative

1. Power supply

2. Ground circuit

3. Audio enable circuit

4. DVD enable signal

5. Audio enable signal

6. DVD player

7. Audio unit

1. Refer to

AV-76, "Power Supply Circuit Inspection"

2. Refer to

AV-76, "Power Supply Circuit Inspection"

3. Check audio enable circuits for open or short between

audio unit terminals 39, 40 and DVD player terminals
11, 9.

4. Push power switch of DVD player and verify approx.

5V is present at terminal 39 of audio unit.

5. Push power switch of DVD player and verify approx.

5V is present at terminal 9 of DVD player.

6. Remove DVD player for repair.

7. Remove audio unit for repair.

No sound when playing
DVD

1. Audio signal circuits

2. DVD player

3. Audio unit

1. Check audio signal circuits for open or short between

DVD player terminals 1, 2, 3 and 4 and audio unit ter-
minals 34, 35, 36 and 37.

2. Remove DVD player for repair.

3. Remove audio unit for repair.

Video monitor is inopera-
tive/does not operate prop-
erly

1. Power supply

2. Video monitor ground circuit

3. Video circuits

4. Data signal

5. Video monitor

6. DVD player

1. Operate DVD player and verify battery positive voltage

is present at terminal 16 of video monitor. Verify
approximately 5 volts is present at terminal 5 of video
monitor.

2. Check video monitor ground circuits between DVD

player terminals 19 and 27 and video monitor terminals
6 and 12.

3. Check video circuits between DVD player terminals 23

and 24 and video monitor terminals 7 and 8.

4. Check data signal circuit for open or short between

DVD player terminal 29 and video monitor terminal 13.

5. Remove video monitor for repair.

6. Remove DVD player for repair.

DVD remote control is
inoperative/does not oper-
ate properly

1. Data signal

2. DVD player remote control batteries

3. DVD player remote control

4. Video monitor

1. Check data signal circuit for open or short between

DVD player terminal 30 and video monitor terminal 14.

2. Replace DVD player remote control batteries.

3. Replace DVD player remote control.

4. Remove video monitor for repair.

Headphones inoperative

1. Headphone batteries

2. Headphones

1. Replace headphone batteries.

2. Replace headphones.

Snowy video/poor audio

1. Harness or connectors

2. DVD player

1. Check harness and connectors for open or short.

2. Check DVD player.

Snowy video (audio OK)

1. Harness or connectors

2. DVD player

1. Check harness and connectors for open or short.

2. Check DVD player.

No video (audio OK)

1. Harness or connectors

2. DVD player

3. Video monitor

1. Check harness and connectors for open or short.

2. Check DVD player.

3. Check video monitor.

Dim video (audio OK)

1. Harness or connectors

2. DVD player

3. Video monitor

1. Check harness and connectors for open or short.

2. Check DVD player.

3. Check video monitor.

AV-76

DVD ENTERTAINMENT SYSTEM

2007 Pathfinder

Power Supply Circuit Inspection

EKS00G6A

CHECK FUSES

Check that the following fuses are not blown.

OK or NG

>> GO TO 2.

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to

PG-

4, "POWER SUPPLY ROUTING CIRCUIT"

POWER SUPPLY CIRCUIT CHECK

Disconnect DVD player connector M205.

Check voltage between the DVD player and ground.

OK or NG

>> GO TO 3.

●

Check connector housings for disconnected or loose
terminals.

●

Repair harness or connector.

GROUND CIRCUIT CHECK

Check continuity between DVD player harness connector M206 ter-
minal 22 and ground.

OK or NG

>> Inspection End.

●

Check connector housings for disconnected or loose
terminals.

●

Repair harness or connector.

Unit

Terminals

Signal name

Fuse No.

DVD player

Battery power

Ignition switch ACC or ON

Unit

Terminal No.

OFF

ACC

(+)

(-)

Connector

Terminal

DVD player

M205

Ground

Battery
voltage

WKIA1197E

Continuity should exist.

WKIA1198E

DVD ENTERTAINMENT SYSTEM

AV-77

2007 Pathfinder

Removal and Installation

EKS00G6B

DVD PLAYER
Removal

Disconnect battery negative terminal.

Remove the center console assembly. Refer to

IP-18, "Center Console"

Remove the DVD player screws.

Disconnect the DVD player connectors, then remove from the
center console assembly.

Installation

Installation is in reverse order of removal.

VIDEO MONITOR
Removal

Release the clips and remove DVD video monitor finisher from
headlining.

Press the release tabs and remove the cover.

Remove the video monitor screws.

Gently lower the assembly and disconnect the connector, then
remove the video monitor from the headlining.

Installation

Installation is in reverse order of removal.

LKIA0591E

WKIA3714E

AV-78

NAVIGATION SYSTEM

2007 Pathfinder

NAVIGATION SYSTEM

PFP:25915

System Description

EKS00G6D

NOTE:
Refer to NAVI System Owner's Manual for system operation.

The navigation system periodically calculates the vehicle's current
position according to the following three signals: Travel distance of
the vehicle as determined by the vehicle speed sensor, turning angle
of the vehicle as determined by the gyroscope (angular velocity sen-
sor), and the direction of vehicle travel as determined by the GPS
antenna (GPS information).
The current position of the vehicle is then identified by comparing the
calculated vehicle position with map data read from the map DVD-
ROM, which is stored in the DVD-ROM drive (map-matching), and
indicated on the screen with a current-location mark.

By comparing the vehicle position detection results found by the
GPS and by map-matching, more accurate vehicle position data can
be used.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.

TRAVEL DISTANCE

Travel distance calculations are based on the vehicle speed sensor input signal. Therefore, the calculation
may become incorrect as the tires wear down. To prevent this, an automatic distance fine adjustment function
has been adopted. Adjustments can be made in extreme cases such as driving with tire chain fitted on tires.
Refer to

AV-108, "Confirmation/Adjustment Mode"

TRAVEL DIRECTION

Change in the travel direction of the vehicle is calculated by a gyroscope (angular velocity sensor) and a GPS
antenna (GPS information). As the gyroscope and GPS antenna have both merit and demerit, input signals
from them are prioritized in each situation. However, this order of priority may change in accordance with more
detailed travel conditions so that the travel direction is detected more accurately.

WKIA1371E

SEL684V

Type

Advantage

Disadvantage

Gyroscope (angular velocity sensor)

●

Can detect the vehicle's turning angle
quite accurately.

●

Direction errors may accumulate when the
vehicle is driven for long distances without
stopping.

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.

NAVIGATION SYSTEM

AV-79

2007 Pathfinder

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 DVD-ROM stored in
the DVD-ROM drive.
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 in the map DVD-
ROM.

●

In map-matching, alternative routes to reach the destination will
be shown and prioritized, after the road on which the vehicle is
currently 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 in the map
DVD-ROM, 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-match-
ing function may find another road and position the current-loca-
tion 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
direction calculated by the distance and direction with the road
data read from the map DVD-ROM is limited. Therefore, when
there is an excessive 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).
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.

SEL685V

SEL686V

SKIA0613E

SEL526V

AV-80

NAVIGATION SYSTEM

2007 Pathfinder

●

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 DESCRIPTION
NAVI Control Unit

●

The gyro (angular speed sensor) and the DVD-ROM drive are
built-in units that control the navigation functions.

●

Signals are received from the gyro, the vehicle speed sensor,
and the GPS antenna. Vehicle location is determined by com-
bining this data with the data contained in the DVD-ROM map.
Location information is shown on liquid crystal display (display
unit).

●

Maps, traffic control regulations, and other pertinent information
can be easily read from the DVD-ROM disc.

●

The oscillator gyro sensor is used to detect changes in vehicle
steering angle.

Map DVD-ROM

●

The map DVD-ROM has maps, traffic control regulations, and other pertinent information.

●

To improve DVD-ROM map matching and route determination functions, the DVD-ROM uses an exclusive
Nissan format. Therefore, the use of a DVD-ROM provided by other manufacturers cannot be used.

Display Control Unit

The display control unit coordinates audio and video signals between the NAVI control unit and the display
unit.

Display Unit

Displays NAVI system information.

AV Switch

AV switch allows user to input NAVI display settings. Self diagnostics are initiated using AV switch.

GPS Antenna

GPS antenna sends signals to NAVI control unit.

CAN Communication System Description

EKS00G6E

Refer to

LAN-4, "SYSTEM DESCRIPTION"

WKIA4593E

Content .. 73 74 75 76 ..