radio antenna NISSAN X-TRAIL 2003 Service User Guide

NAVIGATION SYSTEM
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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 position-
ing, 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.
SEL686V
SKIA0613E
SEL526V

AV-80
NAVIGATION SYSTEM

DIAGNOSIS BY HISTORY OF ERRORS
The “Self-diagnosis” results indicate whether an error occurred during the period from when the ignition switch
is turned to ON until “Self-diagnosis” is completed.
If an error occurred before the ignition switch was turned to ON and does not occur again until the “Self-diag-
nosis” is completed, the diagnosis result will be judged normal. Therefore, those errors in the past, which can-
not be found by the “Self-diagnosis”, must be found by diagnosing the “History of Errors”.
The History of Errors displays the time and place of the most recent occurrence of that error. However, take
note of the following points.

Correct time of the error occurrence may not be displayed when the GPS antenna substrate within the
NAVI control unit has malfunctioned.

Place of the error occurrence is represented by the position of the current-location mark at the time when
the error occurred. If the current-location mark has deviated from the correct position, then the place of
the error occurrence may be located correctly.

The maximum number of occurrences which can be stored is 50. For the 51st and later occurrences, the
displayed number remains 50.
When a reproducible malfunction occurred but its cause cannot be identified because several errors are
present, record the item, number and place (longitude/latitude) of error occurrence (or delete the History of
Errors), then turn the ignition switch from OFF to ON to reproduce the malfunction. Check the History of Errors
to find the items which show an increased number of occurrences, and diagnose the item.
Error itemPossible causes
Example of symptom
Action/symptom
Gyro sensor
disconnectedCommunications malfunction between NAVI control unit and inter-
nal gyro

Navigation location detection performance
has deteriorated.
(Angular velocity cannot be detected.)
Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS discon-
nectedCommunication error between NAVI control unit and internal GPS
substrate

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS trans-
mission cable
malfunctionMalfunctioning transmission wires to NAVI control unit and internal
GPS substrate

During self-diagnosis, GPS diagnosis is not
performed.
Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS input
line connec-
tion errorMalfunctioning receiving wires to NAVI control unit and internal
GPS substrate

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS TCX0
over
GPS TCX0
underOscillating frequency of the GPS substrate frequency synchroniz-
ing oscillation circuit exceeded (or below) the specification

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference, or the control unit may have been subjected to exces-
sively high or low temperatures.

NAVIGATION SYSTEM
AV-81
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GPS ROM
malfunction
GPS RAM
malfunctionContents of ROM (or RAM) in GPS substrate are malfunctioning.

Location detection accuracy of the navigation
system will deteriorate, depending on the mal-
functioning area in the memory, because GPS
cannot make correct positioning.
(Location correction using GPS is not per-
formed.)

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS RTC
malfunctionClock IC in GPS substrate is malfunctioning.

Correct time may not be displayed.

After the power is turned on, the system
always takes some time until GPS positioning
becomes possible. (The GPS receiver starts
positioning without re-collecting the whole sat-
ellite information when it judged the data
stored in the receiver is correct.)

Correct time of error occurrence may not be
stored in the ″History of Errors″.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS antenna
disconnectedMalfunctioning connection between GPS substrate in NAVI control
unit and GPS antenna.

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
Low voltage
of GPSThe power voltage supplied to the GPS circuit board has
decreased.

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response
ErrorMalfunctioning NAVI control unit -
Dedicated map DVD-ROM is in the system, but the data cannot be
read.

The map of a particular location cannot be dis-
played.

Specific guidance information cannot be dis-
played.

Map display is slow.

Guidance information display is slow.

System has been affected by vibration.

Is map DVD-ROM damaged, warped, or dirty?
–If damaged or warped, the map DVD-ROM is malfunctioning.
–If dirty, wipe the DVD-ROM clean with a soft cloth.

Perform self-diagnosis.

When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration. Error itemPossible causes
Example of symptom
Action/symptom

IDX-7
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IDX
ALPHABETICAL INDEX
Park/neutral position switch (A/T) .................... AT-100
Park/neutral position switch (M/T) ..................... MT-13
PCV (positive crankcase ventilation) . EC-478, EC-870
PGC/V - Wiring diagram .................................. EC-267
PHASE - Wiring diagram ................... EC-255, EC-648
Pilot bushing replacement - See Pilot
converter(QR20DEQR25DE) ........................... EM-82
Piston assembly(QR20DEQR25DE) .............. EM-103
Piston pin inspection(QR20DEQR25DE) ......... EM-99
Piston pin inspection(YD22DDTi) .................... EM-222
Piston ring inspection(QR20DEQR25DE) ...... EM-100
Piston ring inspection(YD22DDTi) ................... EM-227
Piston to bore clearance(QR20DEQR25DE) . EM-103
Piston to bore clearance(YD22DDTi) .............. EM-230
PNP/SW - Wiring diagram EC-375, EC-727, EC-1183,
EC-1480
PNPSW1 - Wiring diagram .............................. EC-817
POS - Wiring diagram ........................ EC-248, EC-640
POWER - Wiring diagram .................................... PG-3
Power antenna .................................................. AV-41
Power door lock .................................................. BL-22
Power seat ......................................................... SE-10
Power socket ................................................... WW-29
Power steering fluid level ......................... PS-6, MA-44
Power steering gear .......................................... PS-13
Power steering oil pressure switch EC-1186, EC-1483
Power steering oil pump .................................... PS-24
Power steering pressure (PSP) sensor .......... EC-274,
EC-656
Power supply routing ........................................... PG-2
Power window .................................................. GW-40
Precations for Leak detection dye ................... ATC-12
Precautions (General) .......................................... GI-4
Pre-delivery inspection ........................................ MA-4
Pressure plate - See Clutch cover ..................... CL-14
PRGVLV - Wirng diagram ............................... EC-810
Propeller shaft ..................................................... PR-3
Propeller shaft on vehicle service ........................ PR-3
PS/SEN - Wiring diagram .................. EC-275, EC-657
PST/SW - Wiring diagram ............. EC-1187, EC-1484
Q
Quick-glow system ........................ EC-1169
, EC-1457
R
R/FOG - Wiring diagram ..................................... LT-56
Radiator(QR20DEQR25DE) ................ CO-12, CO-14
Radiator(YD22DDTi) ............................ CO-34, CO-38
Radio - See Audio ............................................... AV-4
Rear air spoiler .................................................... EI-30
Rear bumper ........................................................ EI-17
Rear disc brake ................................................. BR-32
Rear door ............................................................ BL-18
Rear fog lamp ..................................................... LT-56
Rear panel finisher .............................................. EI-31
Rear seat ........................................................... SE-31
Rear seat belt ...................................................... SB-4
Rear side window ............................................. GW-13
Rear suspension ............................................... RSU-5
Rear washer .................................................... WW-14
Rear window defogger ...................................... GW-17
Rear wiper ....................................................... WW-14
Refrigerant connection precaution ..................... ATC-5
Refrigerant discharging evacuating charging ATC-141
Refrigerant general precaution .......................... ATC-5
Refrigerant lines ............................................. ATC-141
Refrigerant pressure sensor EC-451, EC-843, ATC-18,
ATC-94
, ATC-157
Refrigeration cycle ........................................... ATC-18
Release bearing (clutch) .................................... CL-12
Removal and installation (A/T) ......................... AT-413
Removal and installation (Transfer) ................... TF-55
Reverse idler shaft (M/T) ...................... MT-20, MT-25
Reverse lamp switch (M/T) - See Back-up lamp switch
(M/T) .................................................................. MT-13
Reverse main gear (M/T) ...................... MT-20, MT-25
Rocker cover(QR20DEQR25DE) .................... EM-42
Rocker cover(YD22DDTi) ............................... EM-168
Room lamp ......................................................... LT-76
Room lamp - See Interior lamp ........................... LT-76
ROOM/L - Wiring diagram .................................. LT-76
RP/SEN - Wiring diagram .................. EC-452, EC-844
RRO2 - Wiring diagram ..................... EC-777, EC-793
S
S/LOCK - Wiring diagram ....................... BL-24
, BL-45
S/SIG - Wiring diagram .................. EC-1199, EC-1496
SCTC/V - Wiring diagram ............. EC-1095, EC-1129,
EC-1136
, EC-1141, EC-1146, EC-1384, EC-1418,
EC-1424
, EC-1429, EC-1434
SEAT - Wiring diagram ...................................... SE-11
Seat belt inspection .......................................... MA-45
Seat belt pre-tensioner disposal ..................... SRS-42
Seat belt, front ..................................................... SB-3
Seat belt, rear ...................................................... SB-4
Seat, front .......................................................... SE-24
Seat, rear ........................................................... SE-31
Self-diagnosis (Transfer) ................................... TF-30
SEN/PW - Wiring diagram ................. EC-369, EC-721
Sheft warning system ...................................... BL-104
SHIFT - Wiring diagram ................................... AT-399
Shift control components (M/T) ............. MT-22, MT-27
Shift fork (M/T) ...................................... MT-22, MT-27
Shift lever ........................................................... MT-14
Shift lock system .............................................. AT-398
Shift schedule .................................................. AT-530
Shift solenoid valve A (A/T) ............................. AT-128
Shift solenoid valve B (A/T) ............................. AT-128
Side air bag (satellite) sensor ......................... SRS-39
Side window - See Rear side window ............... GW-13
Spark plug replacement(QR20DEQR25DE) ... MA-26
Spark plug(QR20DEQR25DE) ........................ EM-30
Specification value ............................. EC-119, EC-566
Speedometer ........................................................ DI-4
Spiral cable ..................................................... SRS-33