4WD NISSAN X-TRAIL 2003 Service User Guide

EC-504
[QR (WITHOUT EURO-OBD)]
ENGINE CONTROL SYSTEM

A/T MODELS WITH ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6460E
Signals ECM TCMESP/TCS/
ABS control
unitSte ering
angle sensor4WD control
unitCombination
meter
Stop lamp switch signalRT
TR
P·N range signal R T
A/T position indicator lamp signal T R R
O/D OFF indicator signal T R
Overdrive control switch signal R T
Closed throttle position signal T R
Wide open throttle position signal T R
Engine speed signal T R R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R R
Output shaft revolution signal R T
A/C compressor feedback signal TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
Brake warning lamp signal T R
SLIP indicator lamp signal T R
ESP OFF indicator lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Steering angle sensor signal R T

ENGINE CONTROL SYSTEM
EC-505
[QR (WITHOUT EURO-OBD)]
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Engine and A/T integratedTR
RT
A/T self-diagnosis signal R TSignals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4WD control
unitCombination
meter

ENGINE CONTROL SYSTEM
EC-889
[YD (WITH EURO-OBD)]
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CAN COMMUNICATION UNIT
System diagram
Input/output signal chart
T: Transmit R: Receive
PKIA6459E
Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
Stop lamp switch signal T R
Engine speed signal T R R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R R
A/C switch signal RT
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
Brake warning lamp signal T R
SLIP indicator lamp signal T R
ESP OFF indicator lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Glow indicator lamp signal TR
Steering angle sensor signal R T

EC-1220
[YD (WITHOUT EURO-OBD)]
ENGINE CONTROL SYSTEM

CAN COMMUNICATION UNIT
System diagram
Input/output signal chart
T: Transmit R: Receive
PKIA6459E
Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
Stop lamp switch signal T R
Engine speed signal T R R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R R
A/C switch signal RT
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
Brake warning lamp signal T R
SLIP indicator lamp signal T R
ESP OFF indicator lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Glow indicator lamp signal TR
Steering angle sensor signal R T

MT-12
SIDE OIL SEAL

SIDE OIL SEALPFP:32113
Removal and InstallationECS008BT
REMOVAL

Clutch housing side oil seal used on 4WD vehicles is attached to transfer. Be sure to replace it
when transfer is removed.
1. Remove drive shaft from transaxle. Refer to FAX-11, "
Removal and Installation" .
2. Remove oil seal with a flat-bladed screwdriver.
CAUTION:
Be careful not to damage the case surface when removing
oil seal.
INSTALLATION
1. Using a drift, drive the oil seal straight until it protrudes from the
case end equal to dimension A shown in the figure.
CAUTION:

When installing oil seals, apply multi-purpose grease to
oil seal lips.

Oil seals are not reusable. Never reuse them.
2. Install all parts in reverse order of removal and check oil level after installation. Refer to MT-11, "
Checking
M/T Oil" .
SCIA0824E
Dimension "A":
Within 0.5 mm (0.020 in) of flush with the case.
Drift to be used:
Transaxle case side: ST30720000
Clutch housing side: ST30720000
SCIA0352E

AT-192
[EURO-OBD]
DTC VEHICLE SPEED SENSOR MTR

DTC VEHICLE SPEED SENSOR MTRPFP:24814
DescriptionECS004SM
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.
On Board Diagnosis LogicECS00CUR
Possible CauseECS00CUS
Check the following items.

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

Vehicle speed sensor
DTC Confirmation ProcedureECS00CUT
CAUTION:

Always drive vehicle at a safe speed.

If conducting this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 5 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
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

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
TF

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