2005 NISSAN X-TRAIL AUTOMATIC

TROUBLE DIAGNOSIS
ATC-67
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AT C

Power Supply and Ground Circuit for Auto Amp.EJS004GV
SYMPTOM: A/C system does not come on.
INSPECTION FLOW
COMPONENT DESCRIPTION
Auto Amp. (Automatic Amplifier)
The auto amp. has a built-in microcomputer which processes infor-
mation sent from various sensors needed for air conditioner opera-
tion. The air mix door motor, mode door motor, intake door motor,
blower motor and compressor are then controlled.
The auto amp. is unitized with control mechanisms. Signals from
various switches and Potentio Temperature Control (PTC) are
directly entered into auto amp.
Self-diagnostic functions are also built into auto amp. to provide
quick check of malfunctions in the auto air conditioner system.
*1AT C - 6 5 , "Operational Check".*2ATC-68, "DIAGNOSTIC PROCE-
DURE FOR A/C SYSTEM".
RJIA2826E
RJIA2824E

TROUBLE DIAGNOSIS
ATC-83
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AT C

SYSTEM DESCRIPTION
Component Parts
Fan speed control system components are:

Auto amp.

A/C LAN system (PBR built-in air mix door motor, mode door motor and intake door motor)

Fan control amp.

In-vehicle sensor

Ambient sensor

Sunload sensor

Intake sensor
System Operation
Automatic Mode
In the automatic mode, the blower motor speed is calculated by the auto amp. based on input from the PBR,
in-vehicle sensor, sunload sensor, intake sensor and ambient sensor.
The blower motor applied voltage ranges from approximately 4 volts (lowest speed) to 12 volts (highest
speed).
The control blower speed (in the range of 4 to 12V), the auto amp. supplies a gate voltage to the fan control
amp. Based on this voltage, the fan control amp. controls the voltage supplied to the blower motor.
*7AT C - 11 4 , "Sunload Sensor Circuit".*8ATC-117, "Intake Sensor Circuit".*9AT C - 3 4 , "SYMPTOM TABLE".
*10AT C - 5 9 , "
FUNCTION CONFIRMA-
TION PROCEDURE", see No. 9.*11ATC-84, "
DIAGNOSTIC PROCE-
DURE FOR BLOWER MOTOR".*12 QR engine; (WITH EURO-OBD) EC-165, "DTC P0117, P0118 ECT SEN-
SOR" .
QR engine; (WITHOUT EURO-OBD)
EC-652, "
DTC P0117, P0118 ECT
SENSOR" .
YD engine; (WITH EURO-OBD) EC-
1093, "DTC P0117, P0118 ECT
SENSOR" .
YD engine; (WITHOUT EURO-OBD)
EC-1449, "
DTC P0117, P0118 ECT
SENSOR" .
RJIA2833E

ATC-84
TROUBLE DIAGNOSIS

Starting Fan Speed Control
Start Up from COLD SOAK Condition (Automatic mode)
In a cold start up condition where the engine coolant temperature is below 56°C (133°F), the blower will not
operate for a short period of time (up to 150 seconds). The exact start delay time varies depending on the
ambient and engine coolant temperature.
In the most extreme case (very low ambient) the blower starting delay will be 150 seconds as described
above. After this delay, the blower will operate at low speed until the engine coolant temperature rises above
56°C (133°F), and then the blower speed will increase to the objective speed.
Start Up from Usual or HOT SOAK Condition (Automatic mode)
The blower will begin operation momentarily after the A/C switch is pushed. The blower speed will gradually
rise to the objective speed over a time period of 3 seconds or less (actual time depends on the objective
blower speed).
Blower Speed Compensation
Sunload
When the in-vehicle temperature and the set temperature are very close, the blower will be operating at low
speed. The low speed will vary depending on the sunload. During conditions of low or no sunload, the blower
low speed is usual low speed (approx. 4V). During high sunload conditions, the auto amp. causes the blower
fan speed to increase.(Approx. 7V)
Fan Speed Control Specification
COMPONENT DESCRIPTION
Fan Control Amp.
The fan control amp. is located on the intake unit. The fan control
amp. receives a gate voltage from the auto amp. to steplessly main-
tain the blower fan motor voltage in the 4 to 12 volt range.
DIAGNOSTIC PROCEDURE FOR BLOWER MOTOR
SYMPTOM: Blower motor operation is malfunctioning.
RJIA0522E
RJIA0523E
RHA467GA

AV-2 Terminals and Reference Value for Display ............ 64
Terminals and Reference Value for NAVI Switch .... 65
Terminals and Reference Value for Transfer Unit ... 66
Terminals and Reference Value for TMC Tuner ...... 68
Terminals and Reference Value for Voice Change
Relay ...................................................................... 68
Self-Diagnosis Function .......................................... 70
DESCRIPTION .................................................... 70
DIAGNOSIS ITEM ............................................... 70
Self-Diagnosis Mode .............................................. 71
OPERATION PROCEDURE ................................ 71
SELF–DIAGNOSIS RESULT ............................... 72
CONFIRMATION/ADJUSTMENT Mode ................. 73
OPERATION PROCEDURE ................................ 73
DISPLAY .............................................................. 74
VEHICLE SIGNALS ............................................. 75
HISTORY OF ERRORS ...................................... 75
NAVIGATION ....................................................... 78
FEATURE RESTRICTION SETTING .................. 79
Power Supply and Ground Circuit Check for NAVI
Control Unit ............................................................. 80
Power Supply and Ground Circuit Check for Display ... 81
Power Supply and Ground Circuit Check for NAVI
Switch ..................................................................... 82
Power Supply and Ground Circuit Check for Trans-
fer Unit .................................................................... 83
Power Supply and Ground Circuit Check for TMC
Tuner ...................................................................... 84
Communication Line Check (Between NAVI Control
Unit and TMC Tuner) .............................................. 85
Communication Line Check (Between Display and
NAVI switch) ........................................................... 85
Communication Line Check (Between NAVI Switch
and Transfer Unit) ................................................... 86
Communication Line Check (Between NAVI Control
Unit and Transfer Unit) ........................................... 86
Communication Line Check (Between Transfer Unit
and Display) ............................................................ 88
Vehicle Speed Signal Check .................................. 89
Illumination Signal Check ....................................... 90
Ignition Signal Check .............................................. 90
Reverse Signal Check ............................................ 91
Color of RGB Image Is Not Proper ......................... 91
RGB Screen Is Not Shown ..................................... 93
RGB Screen Is Rolling ............................................ 94
Guide Sound Is Not Heard ..................................... 95
Display Quality Control Cannot Change Screen .... 97
Example of Symptoms Judged Not Malfunction ..... 98
BASIC OPERATIONS ......................................... 98
VEHICLE MARKS ............................................... 98
MAP DVD-ROM ................................................... 99DESTINATION, WAY POINTS OR MENU CON-
TENTS CANNOT BE CHOSEN OR SET ............ 99
VOICE GUIDANCE .............................................. 99
ROUTE CALCULATION ....................................100
EXAMPLES OF VEHICLE MARK DISPLACE-
MENT .................................................................101
VEHICLE MARK SHOWS A POSITION WHICH
IS COMPLETELY WRONG ...............................104
VEHICLE MARK JUMPS ...................................104
VEHICLE MARK IS IN A RIVER OR SEA .........105
VEHICLE MARK AUTOMATICALLY ROTATES .105
WHEN DRIVING ON SAME ROAD, SOME-
TIMES VEHICLE MARK IS IN RIGHT PLACE
AND SOMETIMES IT IS WRONG PLACE ........105
LOCATION CORRECTION BY MAP-MATCH-
ING IS SLOW .....................................................105
ALTHOUGH GPS RECEIVING DISPLAY IS
GREEN, VEHICLE MARK DOES NOT RETURN
TO CORRECT LOCATION ................................105
NAME OF CURRENT PLACE IS NOT DIS-
PLAYED .............................................................105
CONTENTS OF DISPLAY DIFFER FOR BIRD-
VIEW® AND THE (FLAT) MAP SCREEN ..........105
Program Loading ..................................................106
Removal and Installation of NAVI Control Unit ......107
REMOVAL ..........................................................107
INSTALLATION ..................................................107
Removal and Installation of GPS Antenna ............107
REMOVAL ..........................................................107
INSTALLATION ..................................................107
Removal and Installation of GPS Antenna Feeder .108
REMOVAL ..........................................................108
INSTALLATION ..................................................108
Removal and Installation of NAVI Switch ..............109
REMOVAL ..........................................................109
INSTALLATION ..................................................109
Removal and Installation of Display ......................109
REMOVAL ..........................................................109
INSTALLATION ..................................................109
Removal and Installation of Transfer Unit .............110
REMOVAL ..........................................................110
INSTALLATION ..................................................110
Removal and Installation of TMC Tuner ................110
REMOVAL ..........................................................110
INSTALLATION ..................................................110
Removal and Installation of Voice Change Relay . 110
REMOVAL ..........................................................110
INSTALLATION ..................................................110
TELEPHONE (PRE WIRE) ...................................... 111
Wiring Diagram — PHONE — .............................. 111

AV-4
AUDIO

AUDIOPFP:28111
System DescriptionEKS00INI
WITH CASSETTE DECK
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse [No. 32, located in the fuse and fusible link box]

to audio unit terminal 6.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 4, located in the fuse block (J/B)]

to audio unit terminal 10.
When audio switch is pushed, audio signals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

to terminals 1 and 2 of front door speaker LH and RH

to terminals 1 and 2 of rear speaker LH and RH

to terminals 1 and 2 of tweeter LH and RH.
When one of audio steering wheel switches is pushed to volume up, seek up, or source, resistance in steering
switch circuit changes depending on which button is pushed. This will change voltage. Power is supplied

from audio unit terminal 26

through combination switch (spiral cable) terminal 4 and 15

to audio steering wheel switch terminal 1.
Ground is supplied

from audio steering wheel switch terminal 2

through combination switch (spiral cable) terminal 17 and 7

to audio unit terminal 29.
When one of audio steering wheel switches is pushed to volume down, seek down, or special, resistance in
steering switch circuit changes depending on which button is pushed. This will change voltage. Power is sup-
plied

from audio unit terminal 27

through combination switch (spiral cable) terminal 5 and 16

to audio steering wheel switch terminal 3.
Ground is supplied

from audio steering wheel switch terminal 2

through combination switch (spiral cable) terminal 17 and 7

to audio unit terminal 29.
Speed Sensitive Volume System
Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the con-
trol level can be selected by the customer.

AV-38
NAVIGATION SYSTEM

NAVIGATION SYSTEMPFP:25915
System DescriptionEKS00M7F
NAVIGATION SYSTEM
Location Detection Principle
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 sensor)

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 as a vehicle mark. More accurate data is judged and used by comparing vehicle posi-
tion detection results found by the GPS with the result by map-matching.
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 correction function has been adopted.

Travel direction
Change in the travel direction of the vehicle is calculated by a
gyroscope (angular velocity sensor) and a GPS antenna (GPS
information). They have both advantages and disadvantages.
More accurate traveling direction is detected because priorities are set for the signals from these two
devices according to the situation.
SKIB1058E
SEL684V
Type Advantage Disadvantage
Gyroscope
(angular velocity sensor)Can detect the vehicle's turning angle quite
accurately.Direction errors may accumulate when 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 vehi-
cle speed is low.

AV-40
NAVIGATION SYSTEM

GPS (Global Positioning System)
GPS (Global Positioning System) was developed for and is con-
trolled by the US Department of Defense. The system utilizes GPS
satellites (NAVSTAR), sending out radio waves while flying on an
orbit around the earth at an altitude of approximately 21,000 km.
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 with radio waves from four or more GPS satellites
(two-dimensional positioning).
Position correction by GPS is not available while the vehicle is stopped.
Accuracy of GPS will deteriorate under the following conditions:

In two-dimensional positioning, GPS accuracy will deteriorate when altitude of the vehicle position
changes.

The accuracy can be even lower depending on the arrangement of the GPS satellites utilized for the posi-
tioning.

Position detection is not possible when 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.
NOTE:

Even a high-precision three dimensional positioning, the detection result has an error about 10 m (30 ft).

Because the signals of GPS satellite is controlled by the Tracking and Control Center in the United States,
the accuracy may be degraded lower intentionally or the radio waves may stop.
Traffic Information (RDS-TMC)
The Traffic Information broadcast allows to you to avoid delays due to traffic incidents.
Traffic jams, roadwork, closed roads around your current location, etc. are represented graphically on the map
by icons depicting the nature of the event.
Incidents on the route are automatically brought to your attention when they are approached.
The Traffic Information feature gives you the opportunity to forecast traffic incidents, determine how serious
they are and, via the guidance mode, allows you to detour around traffic problems.
The navigation system receives traffic information from best available sources and enables the RDS-TMC
(Radio Data System-Traffic Message Channel) to inform and guide you.
The RDS-TMC broadcast is fed by a dedicated FM tuner so that you can still tune your radio station while Traf-
fic Information is being broadcasted.
SEL526V

AV-46
NAVIGATION SYSTEM

FUNCTION OF NAVI SWITCH
DEST Button
This key is used to set the destination (and way points).

Easy Mode

Expert Mode
The function of each icon is as follows:
MAP Button
The map will be displayed.
SKIA9542E
SKIA9142E
IconMode
Description
Easy Expert
Address Book×Use this category item if you want to go to places stored in the address book.
Address (City / Street)××Use this category item if you know the city name, street name and house number of the
destination (and way points).
Point of Interest (POI)××Use this category item if you want to go to a restaurant, hotel, gas station or other facility.
Phone Number×Use this category item when the destination phone number is known.
Previous Dest.×The ten previous destinations are registered automatically, thereby deleting the older ones.
Intersection×Sets a destination using the intersection of 2 streets.
City Centre×Sets the destination (way point) on the map screen of the area around the input city.
Map×Use this category item if you want to choose the place directly on the map display.
Home×When you set your home in the address book, a route home will be calculated by selecting
this key.
Help××You can see the explanation of the navigational functions.