2003 NISSAN X-TRAIL engine

MT-16
AIR BREATHER HOSE

AIR BREATHER HOSEPFP:31098
Removal and InstallationECS008BW
Refer to the figure for air breather hose removal and installation information.
QR engine model
YD engine model
CAUTION:

Make sure there are no pinched or restricted areas on air breather hose caused by bending or
winding when installing it.

Be sure to insert hose into transaxle tube until overlap area reaches the spool.
PCIB0778E
1. Air cleaner case 2. Transaxle 3. Clip
4. Air breather hose 5. Clip 6. PCV hose
7. Resonator
PCIB0779E
1. Air cleaner case 2. Transaxle 3. Clip
4. Clip 5. Air breather hose 6. Clip
7. Bracket 8. Mass air flow sensor

TRANSAXLE ASSEMBLY
MT-17
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TRANSAXLE ASSEMBLYPFP:32010
Removal and InstallationECS008BX
REMOVAL
1. Remove air cleaner, air duct, and battery. Refer to EM-15, "Removal and Installation" ,EM-133, "Removal
and Installation"
2. Remove air breather hose. Refer to MT-16, "Removal and Installation" .
3. Remove clutch operating cylinder. Refer to CL-10, "
Removal and Installation" .
CAUTION:
Do not depress clutch pedal during removal procedure.
4. Disconnect control cable from transaxle. Refer to MT-15, "
Removal and Installation" .
5. Drain gear oil from transaxle. Refer to MT-11, "
DRAINING" .
6. Disconnect park/neutral position switch, back-up lamp switch, and ground harness connectors.
7. Remove exhaust front tube and the drive shaft. Refer to EX-2, "
Removal and Installation" .
8. Remove transfer. Refer to TF-55, "
Removal and Installation" .
9. Remove starter motor. Refer to SC-25, "
Removal and Installation" .
10. Place a jack onto transaxle.
CAUTION:
When setting jack, be careful not to bring it into contact with switch.
11. Remove center member, engine insulator and engine mount bracket. Refer to EM-78, "
ENGINE ASSEM-
BLY" (QR engine model) or EM-208, "ENGINE ASSEMBLY" (YD engine model).
12. Remove suspension members. Refer to FSU-12, "
FRONT SUSPENSION MEMBER" .
13. Support engine by placing a jack under oil pan.
1. Center member 2. Insulator assembly 3. Grommet
4. Transaxle 5. Rear engine mounting bracket 6. Rear engine mounting insulator
7. Stopper rubber (YD engine model) 8. Stopper 9. LH engine mounting insulator
10. LH engine mounting bracket
PCIB0780E

MT-18
TRANSAXLE ASSEMBLY

14. Remove bolts securing transaxle to engine.
15. Remove transaxle from vehicle.
INSTALLATION
Paying attention to the following items, install in the reverse order of removal.

When installing transaxle to engine, tighten bolts to the specified torque.
CAUTION:
When installing transaxle, be careful not to bring transaxle input shaft into contact with clutch
cover.
QR engine model:
YD engine model:

After installation, check oil level, and check for leaks and loose
mechanisms. Refer to MT-11, "
Checking M/T Oil" .
MTD0062D
Bolt No. 1 2 3 4 5 6
Quantity 2 1 1 2 2 2
“ ” mm (in)40
(1.57)75
(2.95)45
(1.77)40
(1.57)30
(1.18)40
(1.57)
Tightening torque
N·m (kg - m, ft- lb)74.5
(7.6, 55)42.7
(4.4, 31)35.3
(3.6, 26 )
SCIA0353E
Bolt No. 1 2 3 4 5 6
Quantity 2 2 1 1 3 1
“ ” mm (in)55
(2.17)50
(2.76)120
(4.72)45
(1.77)40
(1.57)35
(1.38)
Tightening torque
N·m (kg - m, ft- lb)44
(4.5, 32)33.5
(3.4, 25)
SCIA0748E

MT-98
SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsECS008CE
TRANSAXLE
Engine QR20DE QR25DE YD22DDTi
Transaxle model RS5F51A RS6F51A
Model code number EQ000 EQ008 EQ068
Number of speed 5 6
Synchromesh typeWarner
Shift pattern
5 speed
6 speed
Gear ratio 1st 3.500 3.416 3.500
2nd 1.944
3rd 1.258
4th 0.947
5th 0.772 0.733 0.772
6th — 0.630
Reverse 3.374 3.252 3.374
Number of teeth Input gear 1st 14 12 14
2nd 18
3rd 31
4th 38
5th 444544
6th — 46
Reverse141214
Main gear 1st 49 41 49
2nd 35
3rd 39
4th 36
5th 343334
6th — 29
Reverse 38
Reverse idler
gearFront 37
Rear 46 38 46
Oil capacity
(Imp pt)2.3 (4)
SCIA0821E
SCIA0955E

SERVICE DATA AND SPECIFICATIONS (SDS)
MT-99
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FINAL GEAR
End PlayECS008CF
Unit: mm (in)
Baulk Ring ClearanceECS00CV4
Unit: mm (in) Remarks Reverse synchronizer Installed
Double-cone synchronizer 1st
Triple-cone synchronizer 2nd Engine QR20DE QR25DE YD22DDTi
Transaxle model RS5F51A RS6F51A
Model code number EQ000 EQ008 EQ068
Engine QR20DE QR25DE YD22DDTi
Transaxle model RS5F51A RS6F51A
Model code number EQ000 EQ008 EQ068
Final gear ratio 4.750 4.428
Number of teeth Final gear/Pinion 76/16 62/14
Side gear/Pinion mate gear 14/10
Gear End play
1st main gear0.20 - 0.30 (0.0079 - 0.0118)
2nd main gear 0.06 - 0.16 (0.0024 - 0.0063)
3rd input gear0.18 - 0.31 (0.0071 - 0.0122)
4th input gear0.20 - 0.30 (0.0079 - 0.0118)
5th input gear0.06 - 0.16 (0.0024 - 0.0063)
6th input gear (For RS6F51A model) 0.06 - 0.16 (0.0024 - 0.0063)
Measurement point Standard Limit value
1st
(Double-cone synchronizer)

Clearance between synchronizer cone
and inner baulk ring end face “A”

Clearance between outer baulk ring pawl
and synchronizer cone “B”A: 0.6 - 0.8 (0.024 - 0.031)
B: 0.6 - 1.1 (0.024 -0.043)0.2 (0.008)
0.2 (0.008)
2nd
(Triple-cone synchronizer)

Clearance between synchronizer cone
and clutch gear end face “A”

Clearance between outer baulk ring pawl
and synchronizer cone “B”

Clearance between inner baulk ring and
clutch gear end face “C”A: 0.6 - 1.2 (0.024 - 0.047)
B: 0.6 - 1.1 (0.024 - 0.043)
C: 0.7 - 1.1 (0.028 - 0.043)0.3 (0.012)
0.2 (0.008)
0.3 (0.012)
3rd&4th 0.9 - 1.45 (0.035 - 0.057) 0.7 (0.028)
PCIB0249E
PCIB0772E

AT-1
AUTOMATIC TRANSAXLE
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION
A
B
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AUTOMATIC TRANSAXLE
TROUBLE DIAGNOSIS — INDEX ............................. 6
Alphabetical & P No. Index for DTC ......................... 6
PRECAUTIONS .......................................................... 8
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 8
Precautions for On Board Diagnostic (EURO-OBD)
System of A/T and Engine — Euro-OBD — ............. 8
Precautions for Trouble Diagnosis ........................... 8
Precautions for Harness Repair ............................... 8
Precautions .............................................................. 9
Service Notice or Precautions ................................ 10
Wiring Diagrams and Trouble Diagnosis ................. 11
PREPARATION ......................................................... 12
Special Service Tools ............................................. 12
Commercial Service Tools ...................................... 15
A/T FLUID ................................................................. 16
Checking A/T Fluid ................................................. 16
Changing A/T Fluid ................................................ 17
OVERALL SYSTEM ................................................. 18
Cross-Sectional View ............................................. 18
Hydraulic Control Circuit ........................................ 19
A/T Electrical Parts Location .................................. 20
Circuit Diagram ...................................................... 21
Shift Mechanism ..................................................... 22
TCM Function ......................................................... 31
CAN Communication .............................................. 32
Input/Output Signal of TCM .................................... 34
Line Pressure Control ............................................ 34
Shift Control ........................................................... 35
Lock-up Control ...................................................... 36
Engine Brake Control (Overrun Clutch Control) ..... 37
Control Valve .......................................................... 39
EURO-OBD
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION .......................................................................... 40
Introduction ............................................................ 40
EURO-OBD Function for A/T System .................... 40One or Two Trip Detection Logic of EURO-OBD .... 40
EURO-OBD Diagnostic Trouble Code (DTC) ......... 40
Malfunction Indicator lamp (MIL) ............................ 44
CONSULT-II ............................................................ 44
Diagnostic Procedure Without CONSULT-II ........... 52
TROUBLE DIAGNOSIS — INTRODUCTION ........... 57
Introduction ............................................................. 57
Work Flow ............................................................... 61
TROUBLE DIAGNOSIS — BASIC INSPECTION .... 64
A/T Fluid Check ...................................................... 64
Stall Test ................................................................. 65
Line Pressure Test .................................................. 68
Road Test ............................................................... 70
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION .......................................................................... 85
Symptom Chart ....................................................... 85
TCM Terminals and Reference Value ..................... 94
DTC U1000 CAN COMMUNICATION LINE .............. 97
Description .............................................................. 97
On Board Diagnosis Logic ...................................... 97
Possible Cause ....................................................... 97
DTC Confirmation Procedure ................................. 97
Wiring Diagram — AT — CAN ................................ 98
Diagnostic Procedure ............................................. 99
DTC P0705 PARK/NEUTRAL POSITION (PNP)
SWITCH ..................................................................100
Description ............................................................100
On Board Diagnosis Logic ....................................100
Possible Cause .....................................................100
DTC Confirmation Procedure ...............................100
Wiring Diagram — AT — PNP/SW .......................102
Diagnostic Procedure ...........................................103
DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................106
Description ............................................................106
On Board Diagnosis Logic ....................................106
Possible Cause .....................................................106
DTC Confirmation Procedure ...............................106
Wiring Diagram — AT — FTS ..............................108

AT-2 Diagnostic Procedure ...........................................109
Component Inspection ...........................................111
DTC P0720 VEHICLE SPEED SENSOR·A/T (REV-
OLUTION SENSOR) ...............................................112
Description ............................................................112
On Board Diagnosis Logic ....................................112
Possible Cause .....................................................112
DTC Confirmation Procedure ...............................112
Wiring Diagram — AT — VSSA/T .........................114
Diagnostic Procedure ...........................................115
DTC P0725 ENGINE SPEED SIGNAL ...................119
Description ............................................................119
On Board Diagnosis Logic ....................................119
Possible Cause .....................................................119
DTC Confirmation Procedure ...............................119
Wiring Diagram — AT — ENGSS .........................121
Diagnostic Procedure ...........................................122
DTC P0731 A/T 1ST GEAR FUNCTION .................125
Description ............................................................125
On Board Diagnostic Logic ...................................125
Possible Cause .....................................................125
DTC Confirmation Procedure ...............................125
Wiring Diagram — AT — 1STSIG .........................127
Diagnostic Procedure ...........................................128
DTC P0732 A/T 2ND GEAR FUNCTION ................130
Description ............................................................130
On Board Diagnostic Logic ...................................130
Possible Cause .....................................................130
DTC Confirmation Procedure ...............................130
Wiring Diagram — AT — 2NDSIG ........................132
Diagnostic Procedure ...........................................133
DTC P0733 A/T 3RD GEAR FUNCTION ................135
Description ............................................................135
On Board Diagnostic Logic ...................................135
Possible Cause .....................................................135
DTC Confirmation Procedure ...............................135
Wiring Diagram — AT — 3RDSIG ........................137
Diagnostic Procedure ...........................................138
DTC P0734 A/T 4TH GEAR FUNCTION ................140
Description ............................................................140
On Board Diagnosis Logic ....................................140
Possible Cause .....................................................141
DTC Confirmation Procedure ...............................141
Wiring Diagram — AT — 4THSIG ........................143
Diagnostic Procedure ...........................................144
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................148
Description ............................................................148
On Board Diagnosis Logic ....................................148
Possible Cause .....................................................148
DTC Confirmation Procedure ...............................148
Wiring Diagram — AT — TCV ..............................150
Diagnostic Procedure ...........................................151
Component Inspection ..........................................153
DTC P0745 LINE PRESSURE SOLENOID VALVE .154
Description ............................................................154
On Board Diagnosis Logic ....................................154
Possible Cause .....................................................154
DTC Confirmation Procedure ...............................154Wiring Diagram — AT — LPSV ............................156
Diagnostic Procedure ............................................157
Component Inspection ..........................................160
DTC P0750 SHIFT SOLENOID VALVE A ...............161
Description ............................................................161
On Board Diagnosis Logic ....................................161
Possible Cause .....................................................161
DTC Confirmation Procedure ................................161
Wiring Diagram — AT — SSV/A ...........................163
Diagnostic Procedure ............................................164
Component Inspection ..........................................166
DTC P0755 SHIFT SOLENOID VALVE B ...............167
Description ............................................................167
On Board Diagnosis Logic ....................................167
Possible Cause .....................................................167
DTC Confirmation Procedure ................................167
Wiring Diagram — AT — SSV/B ...........................169
Diagnostic Procedure ............................................170
Component Inspection ..........................................172
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR .......................................................173
Description ............................................................173
On Board Diagnosis Logic ....................................173
Possible Cause .....................................................173
DTC Confirmation Procedure ................................173
Wiring Diagram — AT — TPS ...............................175
Diagnostic Procedure ............................................176
DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE ......................................................................178
Description ............................................................178
On Board Diagnosis Logic ....................................178
Possible Cause .....................................................178
DTC Confirmation Procedure ................................178
Wiring Diagram — AT — OVRCSV ......................180
Diagnostic Procedure ............................................181
Component Inspection ..........................................183
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE) .184
Description ............................................................184
On Board Diagnosis Logic ....................................184
DTC Confirmation Procedure ................................184
Wiring Diagram — AT — BA/FTS .........................186
Diagnostic Procedure ............................................187
Component Inspection ..........................................191
DTC VEHICLE SPEED SENSOR MTR ...................192
Description ............................................................192
On Board Diagnosis Logic ....................................192
Possible Cause .....................................................192
DTC Confirmation Procedure ................................192
Wiring Diagram — AT — VSSMTR .......................194
Diagnostic Procedure ............................................196
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ......................................................................198
Description ............................................................198
On Board Diagnosis Logic ....................................198
Possible Cause .....................................................198
DTC Confirmation Procedure ................................198
Diagnostic Procedure ............................................199

AT-3
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DTC CONTROL UNIT(EEPROM) ........................... 200
Description ........................................................... 200
On Board Diagnosis Logic ................................... 200
Possible Cause .................................................... 200
DTC Confirmation Procedure ............................... 200
Diagnostic Procedure ........................................... 201
TROUBLE DIAGNOSES FOR SYMPTOMS .......... 202
Wiring Diagram — AT — NONDTC ...................... 202
O/D OFF Indicator Lamp Does Not Come On ..... 204
Engine Cannot Be Started In “P” and “N” Position . 206
In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed .............................................. 207
In “N” Position, Vehicle Moves ............................. 208
Large Shock. “N” → “R” Position .......................... 209
Vehicle Does Not Creep Backward In “R” Position . 210
Vehicle Does Not Creep Forward In “D”, “2” Or “1”
Position ................................................................ 212
Vehicle Cannot Be Started From D
1 ..................... 214
A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown:
D
4 → D2 ............................................................... 217
A/T Does Not Shift: D
2 → D3 ............................... 220
A/T Does Not Shift: D
3 → D4 ............................... 222
A/T Does Not Perform Lock-up ............................ 224
A/T Does Not Hold Lock-up Condition ................. 225
Lock-up Is Not Released ...................................... 227
Engine Speed Does Not Return To Idle (Light Brak-
ing D
4 → D3 ) ....................................................... 228
Vehicle Does Not Start From D
1 ........................... 230
A/T Does Not Shift: D
4 → D3 , When Overdrive Con-
trol Switch “ON” → “OFF” ..................................... 231
A/T Does Not Shift: D
3 → 22 , When Selector Lever
“D” → “2” Position ................................................ 232
A/T Does Not Shift: 2
2 → 11 , When Selector Lever
“2” → “1” Position ................................................. 233
Vehicle Does Not Decelerate By Engine Brake ... 235
TCM Self-diagnosis Does Not Activate ................ 237
EXC.F/EURO-OBD
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION ........................................................................ 242
CONSULT-II ......................................................... 242
Diagnostic Procedure Without CONSULT-II ......... 246
TROUBLE DIAGNOSIS — INTRODUCTION ......... 251
Introduction .......................................................... 251
Work Flow ............................................................ 255
TROUBLE DIAGNOSIS — BASIC INSPECTION .. 256
A/T Fluid Check .................................................... 256
Stall Test ............................................................... 257
Line Pressure Test ............................................... 260
Road Test ............................................................. 262
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION ........................................................................ 277
Symptom Chart .................................................... 277
TCM Terminals and Reference Value ................... 286
TROUBLE DIAGNOSES FOR SYMPTOMS .......... 289
Wiring Diagram — AT — NONDTC ...................... 289
O/D OFF Indicator Lamp Does Not Come On ..... 291
Engine Cannot Be Started In “P” and “N” Position . 293In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed ..............................................294
In “N” Position, Vehicle Moves ..............................295
Large Shock. “N” → “R” Position ..........................296
Vehicle Does Not Creep Backward In “R” Position .297
Vehicle Does Not Creep Forward In “D”, “2” Or “1”
Position .................................................................299
Vehicle Cannot Be Started From D
1 .....................301
A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown:
D
4 → D2 ................................................................304
A/T Does Not Shift: D
2 → D3 ................................307
A/T Does Not Shift: D
3 → D4 ................................309
A/T Does Not Perform Lock-up ............................311
A/T Does Not Hold Lock-up Condition ..................312
Lock-up Is Not Released ......................................314
Engine Speed Does Not Return To Idle (Light Brak-
ing D
4 → D3 ) ........................................................315
Vehicle Does Not Start From D
1 ...........................317
A/T Does Not Shift: D
4 → D3 , When Overdrive Con-
trol Switch “ON” → “OFF” .....................................318
A/T Does Not Shift: D
3 → 22 , When Selector Lever
“D” → “2” Position .................................................319
A/T Does Not Shift: 2
2 → 11 , When Selector Lever
“2” → “1” Position .................................................320
Vehicle Does Not Decelerate By Engine Brake ....322
TCM Self-diagnosis Does Not Activate ................324
ALL
CAN COMMUNICATION LINE ...............................329
Description ............................................................329
On Board Diagnosis Logic ....................................329
Possible Cause .....................................................329
DTC Confirmation Procedure ...............................329
Wiring Diagram — AT — CAN ..............................330
Diagnostic Procedure ...........................................331
VEHICLE SPEED SENSOR·A/T (REVOLUTION
SENSOR) ................................................................332
Description ............................................................332
CONSULT-II Reference Value ..............................332
On Board Diagnosis Logic ....................................332
Possible Cause .....................................................332
DTC Confirmation Procedure ...............................332
Wiring Diagram — AT — VSSA/T ........................334
Diagnostic Procedure ...........................................335
DTC VEHICLE SPEED SENSOR MTR ..................339
Description ............................................................339
CONSULT-II Reference Value ..............................339
On Board Diagnosis Logic ....................................339
Possible Cause .....................................................339
DTC Confirmation Procedure ...............................339
Wiring Diagram — AT — VSSMTR ......................341
Diagnostic Procedure ...........................................343
ACCELE RATOR PEDAL POSITION (APP) SEN-
SOR .........................................................................345
Description ............................................................345
On Board Diagnosis Logic ....................................345
Possible Cause .....................................................345
DTC Confirmation Procedure ...............................345