2003 NISSAN X-TRAIL 4WD

DTC VEHICLE SPEED SENSOR MTR
AT-339
[ALL]
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DTC VEHICLE SPEED SENSOR MTRPFP:24814
DescriptionECS004TM
The vehicle speed sensor·MTR is built into the speedometer assem-
bly. The sensor functions as an auxiliary device to the revolution sen-
sor when it is malfunctioning. The TCM will then use a signal sent
from the vehicle speed sensor·MTR.
CONSULT-II Reference ValueECS00CSH
Remarks: Specification data are reference values.
On Board Diagnosis LogicECS00CSA
Possible CauseECS00CSB
Check the following items.

Harness or connector
(The sensor circuit is open or shorted.)

Vehicle speed sensor
DTC Confirmation ProcedureECS00CSC
After the repair, perform the following procedure to confirm the malfunction is eliminated.
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
SCIA0716E
Monitor item Condition Display value
VHCL/S SE·MTR (km/h) During driving Approximately matches the speedometer
reading.
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: VHCL SPEED SEN·MTR
TCM does not receive the proper voltage
signal from the sensor.

Harness or connectors
(The sensor circuit is open or shorted.)

Combination meter

4WD/ABS control unit : 2nd judgement flicker
SAT014K

AT-530
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsECS00CXK
*1: Refer to MA-17, "Fluids and Lubricants" .
Shift ScheduleECS00CXL
VEHICLE SPEED WHEN SHIFTING GEARS AND THROTTLE POSITION
For 85X23 model
For 85X64 model
VEHICLE SPEED WHEN PERFORMING LOCK-UP
Unit: km/h (MPH)
NOTE:

Lock-up vehicle speed indicates the speed in D4 position.

Perform lock-up inspection after warming up engine.

Lock-up vehicle speed may vary depending on the driving conditions and circumstances. EngineQR20DE QR25DE
Automatic transaxle model RE4F04B (4WD)
Automatic transaxle assembly Model code number 85X23 85X64
Transaxle gear ratio1st 2.785
2nd 1.545
3rd 1.000
4th 0.694
Reverse 2.272
Final drive 4.425 4.087
Recommended fluid Genuine Nissan ATF or equiualent*1
Fluid capacity (Imp qt)8.5 (7-1/2)
Throttle posi-
tionShift patternVehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D3D3 → D2D2 → D1
Full throttleComfort53 - 61
(33 - 38)99 - 107
(62 - 67)156 - 164
(97 - 102)152 - 160
(94 - 99)89 - 97
(53 - 60)41 - 49
(25 - 30)
Auto power53 - 61
(33 - 38)99 - 107
(62 - 67)156 - 164
(97 - 102)152 - 160
(94 - 99)89 - 97
(55 - 60)41 - 49
(25 - 30)
Half throttleComfort34 - 42
(21 - 26)64 - 72
(40 - 45)124 - 138
(77 - 82)82 - 90
(51 - 56)41 - 49
(25 - 30)5 - 13
(3 - 8)
Auto power38 - 46
(24 - 29)70 - 78
(44 - 48)124 - 132
(77 - 82)81 - 89
(50 - 55)44 - 53
(27 - 33)5 - 13
(3 - 8)
Throttle posi-
tionShift patternVehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D3D3 → D2D2 → D1
Full throttleComfort57 - 65
(35 - 40)107 - 115
(66 - 71)167 - 175
(104 - 109)163 - 171
(101 - 106)97 - 105
(60 - 65)41 - 49
(25 - 30)
Auto power57 - 65
(35 - 40)107 - 115
(66 - 71)167 - 175
(104 - 109)163 - 171
(101 - 106)97 - 105
(60 - 65)41 - 49
(25 - 30)
Half throttleComfort36 - 44
(22 - 27)71 - 79
(44 - 49)131 - 139
(81 - 86)77 - 85
(48 - 53)38 - 46
(23 - 28)5 - 13
(3 - 8)
Auto power42 - 50
(26 - 31)79 - 87
(49 - 54)131 - 139
(81 - 86)77 - 85
(48 - 53)45 - 53
(28 - 33)5 - 13
(3 - 8)
Model code No. 85X23 85X64
Vehicle speed Throttle position 1/8 58 - 66 (36 - 41) 61 - 69 (38 - 43)

TF-1
TRANSFER
D DRIVELINE/AXLE
CONTENTS
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SECTION
A
B
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TRANSFER
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions .............................................................. 3
Service Notice .......................................................... 4
Wiring Diagrams and Trouble Diagnosis .................. 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 8
NVH Troubleshooting Chart ..................................... 8
TRANSFER OIL .......................................................... 9
Replacement ............................................................ 9
DRAINING ............................................................. 9
FILLING ................................................................. 9
Inspection ................................................................. 9
OIL LEAKAGE AND OIL LEVEL ........................... 9
ALL MODE 4X4 SYSTEM ........................................ 10
Power Transfer Diagram ........................................ 10
System Description ................................................ 10
ELECTRIC CONTROLLED COUPLING ............. 10
4WD CONTROL UNIT ........................................ 10
4WD MODE SWITCH .......................................... 11
4WD INDICATOR LAMP AND LOCK INDICATOR
LAMP ................................................................... 11
4WD WARNING LAMP ........................................ 11
System Diagram ..................................................... 12
COMPONENTS FUNCTION DESCRIPTION ..... 13
CAN Communication .............................................. 13
SYSTEM DESCRIPTION .................................... 13
CAN COMMUNICATION UNIT (M/T MODELS
WITHOUT ESP) .................................................. 13
CAN COMMUNICATION UNIT (A/T MODELS
WITHOUT ESP) .................................................. 14
CAN COMMUNICATION UNIT (M/T MODELS
WITH ESP) .......................................................... 15
CAN COMMUNICATION UNIT (A/T MODELS
WITH ESP) .......................................................... 16
TROUBLE DIAGNOSIS ............................................ 18Fail-safe Function ................................................... 18
How to Perform Trouble Diagnosis ......................... 18
BASIC CONCEPT ............................................... 18
Location of Electrical Parts ..................................... 19
Circuit Diagram ....................................................... 20
Wiring Diagram — 4WD — ..................................... 21
LHD MODELS ..................................................... 21
RHD MODELS .................................................... 24
Trouble Diagnosis Chart for Symptoms .................. 27
4WD Control Unit Input/Output Signal Reference
Values ..................................................................... 28
4WD CONTROL UNIT INSPECTION TABLE ..... 28
CONSULT-II Function ............................................. 29
FUNCTION .......................................................... 29
CONSULT-II SETTING PROCEDURE ................ 29
SELF-DIAG RESULT MODE ............................... 30
DATA MONITOR MODE ...................................... 31
ACTIVE TEST MODE ......................................... 32
4WD CONTROL UNIT PART NUMBER .............. 32
TROUBLE DIAGNOSIS FOR SYSTEM .................... 33
Power Supply Circuit for 4WD Control Unit ............ 33
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ................................................ 33
DIAGNOSTIC PROCEDURE .............................. 33
4WD Control Unit .................................................... 34
DIAGNOSTIC PROCEDURE .............................. 34
ABS System ........................................................... 34
DIAGNOSTIC PROCEDURE .............................. 34
4WD Solenoid ......................................................... 36
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ................................................ 36
DIAGNOSTIC PROCEDURE .............................. 36
COMPONENT INSPECTION .............................. 38
4WD Actuator Relay ............................................... 38
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ................................................ 38
DIAGNOSTIC PROCEDURE .............................. 38
4WD Mode Switch .................................................. 40
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ................................................ 40

TF-2 DIAGNOSTIC PROCEDURE .............................. 40
COMPONENT INSPECTION .............................. 42
Engine Control Signal ............................................. 42
DIAGNOSTIC PROCEDURE .............................. 42
CAN Communication Line ...................................... 43
DIAGNOSTIC PROCEDURE .............................. 43
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 44
4WD Indicator Lamp and LOCK Indicator Lamp Do
Not Turn ON for Approx. 1 Second When The Igni-
tion Switch Is Turned to ON .................................... 44
DIAGNOSTIC PROCEDURE .............................. 44
4WD Warning Lamp Does Not Turn ON When The
Ignition Switch Is Turned to ON .............................. 45
DIAGNOSTIC PROCEDURE .............................. 45
4WD Warning Lamp Does Not Turn OFF Several
Seconds after Engine Started ................................. 46
DIAGNOSTIC PROCEDURE .............................. 46
4WD Mode Cannot Be Switched after Engine Is
Started .................................................................... 47
DIAGNOSTIC PROCEDURE .............................. 47
Heavy Tight-corner Braking Symptom Occurs
When The Vehicle Is Driven in AUTO Mode and The
Steering Wheel Is Turned Fully to Either Side after
The Engine Is Started ............................................. 48
DIAGNOSTIC PROCEDURE .............................. 48
Vehicle Does Not Enter 4WD Mode Even Though
4WD Warning Lamp Turned to OFF ....................... 49
DIAGNOSTIC PROCEDURE .............................. 50
While Driving, 4WD Warning Lamp Flashes Rapidly
(When Flashing in Approx. 1 Minute and Then Turn-
ing OFF) ................................................................. 50
While Driving, 4WD Warning Lamp Flashes Slowly
(When Continuing to Flash until Turning Ignition Switch OFF) ............................................................ 51
DIAGNOSTIC PROCEDURE ............................... 51
4WD CONTROL UNIT ............................................... 52
Removal and Installation ......................................... 52
REMOVAL ............................................................ 52
INSTALLATION .................................................... 52
SIDE OIL SEAL ......................................................... 53
Removal and Installation ......................................... 53
REMOVAL ............................................................ 53
INSTALLATION .................................................... 53
AIR BREATHER HOSE ............................................. 54
Components ............................................................ 54
Removal and Installation ......................................... 54
TRANSFER ASSEMBLY ........................................... 55
Removal and Installation ......................................... 55
COMPONENTS ................................................... 55
REMOVAL ............................................................ 55
INSTALLATION .................................................... 56
Disassembly and Assembly .................................... 57
COMPONENTS ................................................... 57
ASSEMBLY INSPECTION ................................... 58
DISASSEMBLY .................................................... 62
INSPECTION AFTER DISASSEMBLY ................ 66
SELECTING ADJUSTING SHIMS ....................... 67
ASSEMBLY .......................................................... 68
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 74
General Specifications ............................................ 74
Inspection and Adjustment ...................................... 74
PRELOAD TORQUE BEFORE DISASSEMBLY ... 74
PRELOAD TORQUE AFTER DISASSEMBLY
AND REASSEMBLY ............................................ 74
BACKLASH .......................................................... 74
COMPANION FLANGE RUNOUT ....................... 74
SELECTIVE PARTS ............................................ 74

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EDS001W1
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
PrecautionsEDS001V6

Before connecting or disconnecting the 4WD control unit
harness connector, turn ignition switch “OFF” and discon-
nect battery ground cable. Because battery voltage is
applied to 4WD control unit even if ignition switch is turned
“OFF”.

When connecting or disconnecting pin connectors into or
from 4WD control unit, take care not to damage pin termi-
nals (bend or break).
When connecting pin connectors, make sure that there are
no bends or breaks on 4WD control unit pin terminal.

Before replacing 4WD control unit, perform 4WD control
unit input/output signal inspection and make sure whether
4WD control unit functions properly or not. Refer to TF-28,
"4WD Control Unit Input/Output Signal Reference Values" .
SEF289H
SEF291H
SDIA1848E

TF-10
ALL MODE 4X4 SYSTEM

ALL MODE 4X4 SYSTEMPFP:47850
Power Transfer DiagramEDS001VA
System DescriptionEDS001VB
ELECTRIC CONTROLLED COUPLING
Operation Principle
1. The 4WD control unit supplies command current to electric con-
trolled coupling (4WD solenoid).
2. The control clutch is engaged by electromagnet and torque is
detected in control clutch.
3. The cam operates in response to control clutch torque and
applies pressure to main clutch.
4. The main clutch transmits torque to front wheels according to
pressing power.

Transmission torque to the rear wheels is determined accord-
ing to command current.
4WD CONTROL UNIT

4WD controls distribution of drive power between front-wheel
drive (100:0) and 4WD (50:50) conditions according to signals
from sensors.

Self-diagnosis can be done with CONSULT-II.
SDIA1607E
SFIA0284E
SDIA1844E
SDIA2285E

ALL MODE 4X4 SYSTEM
TF-11
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4WD MODE SWITCH
AUTO Mode

Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.

4WD mode makes possible stable driving, with no wheel spin, on snowy roads or other slippery surfaces.

On roads which do not require 4WD, AUTO mode contributes to improved fuel economy by driving in con-
ditions close to front-wheel drive.

Sensor inputs determine the vehicle's turning condition, and tight cornering/braking are controlled by dis-
tributing optimum torque to rear wheels.
LOCK Mode

Front/rear wheel torque distribution is fixed, ensuring stable driving when climbing slopes.

Vehicle will switch automatically to AUTO mode if vehicle speed increases. If vehicle speed then
decreases, the vehicle automatically returns to direct 4-wheel driving conditions.

LOCK mode will change to AUTO mode automatically, when the vehicle speed exceeds approx. 30 km/h
(19 MPH). The LOCK indicator light keeps illuminating.
NOTE:
If there is a significant difference in pressure or wear between tires, full vehicle performance is not available.
LOCK mode may be prohibited, or speeds at which LOCK mode is enabled may be restricted detecting tire
conditions.
2WD Mode
Vehicle is in front-wheel drive.
NOTE:

If front wheels are slipping in 2WD mode, do not switch to AUTO or LOCK. This can cause difficulties for
the system.

Even if the 4WD mode switch is in 2WD mode, the 4WD control unit occasionally automatically change to
AUTO mode depending on the driving condition (For example; Depressing the acceleration firmly). This is
not malfunction. However, 4WD indicator lamp dose not illuminate.
4WD INDICATOR LAMP AND LOCK INDICATOR LAMP
The following is the indications of indicator lamp.
4WD WARNING LAMP
Turns ON when there is a malfunction in 4WD system. It indicates that the vehicle is in fail-safe mode and
change to front-wheel drive or shifting driving force-4WD (Rear-wheels still have some driving torque).
Also turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF approximately for 1
seconds after the engine starts if system is normal.
4WD Warning Lamp Indication
Condition 4WD indicator lamp LOCK indicator lamp
AUTO mode ON OFF
LOCK mode ON ON
2WD mode OFF OFF
Lamp check Turns ON for approx. 1 second when ignition switch is turned ON.
SDIA2298E
Condition 4WD warning lamp
Lamp checkTurns ON when ignition switch is turned ON. Turns OFF
approx. 1 seconds after engine start.
4WD system malfunctionON
Protection function is activated due to heavy load to electric con-
trolled coupling. (4WD system is not malfunctioning and 4WD system
changes to 2WD mode.)Rapid flashing: 2 times/second
(Flashing in approx. 1 minute and then turning OFF.)

TF-12
ALL MODE 4X4 SYSTEM

System DiagramEDS001VC
Large difference in diameter of front/rear tiresSlow flashing: 1 time/2 seconds
(Continuing to flash until turning ignition switch OFF)
Other than above (system normal) OFFCondition 4WD warning lamp
SDIA1866E