2001 NISSAN X-TRAIL clutch

MT-90
FINAL DRIVE
7. Using a drift (special service tool), install differential side bearing
(transaxle case side).
8. Using a drift (special service tool), install differential side bearing
(clutch housing side).
9. Install final gear into differential case, and tighten final gear
mounting bolts.
Assembly and Disassembly (RS6F51A)ECS008CB
PRE-INSPECTION
●Check the clearance between side gear and differential case as
follows.
1. Clean final drive assembly sufficiently to prevent side gear thrust
washer, differential case, side gear, and other parts from sticking
by gear oil.
2. Upright the differential case so that the side gear to be measured faces upward.
SCIA0910E
SCIA0911E
SCIA0912E
SCIA1020E

FINAL DRIVE
MT-91
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3. Place final drive adapter and dial indicator onto side gear. Move
side gear up and down, and measure the clearance.
CAUTION:
There should be no resistance and gears should rotate
freely.
4. If not within specification, adjust the clearance by changing
thrust washer thickness.
5. Turn differential case upside down, and measure the clearance
between side gear and differential case on the other side in the
same way.
DISASSEMBLY
1. Remove mounting bolts.Then, separate the final gear from differential case.
2. Using a drift and puller, remove differential side bearing (clutch
housing side).
3. Using a drift and puller, remove differential side bearing (tran-
saxle case side).
4. Using a pin punch, pull out lock pin and pinion mate shaft.
5. Rotate pinion mate gears, and remove pinion mate gears, pinion
mate thrust washers, side gears, and side gear thrust washers
from differential case.Clearance between side gear and differential case
: 0.1 - 0.2 mm (0.004 - 0.008 in)
SMT611A
SCIA0906E
SCIA0907E
SCIA0908E

MT-94
FINAL DRIVE
8. Using a drift (special service tool), install differential side bearing
(clutch housing side).
9. Install final gear into differential case, and tighten final gear
mounting bolts.
SCIA0911E
SCIA0912E

AT-2
DTC P0732 A/T 2ND GEAR FUNCTION ................137
Description ............................................................137
Wiring Diagram — AT — 2ND ..............................140
Diagnostic Procedure ...........................................141
Component Inspection ..........................................142
DTC P0733 A/T 3RD GEAR FUNCTION ................143
Description ............................................................143
Wiring Diagram — AT — 3RD ..............................146
Diagnostic Procedure ...........................................147
Component Inspection ..........................................148
DTC P0734 A/T 4TH GEAR FUNCTION ................149
Description ............................................................149
Wiring Diagram — AT — 4TH ...............................152
Diagnostic Procedure ...........................................153
Component Inspection ..........................................156
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................158
Description ............................................................158
Wiring Diagram — AT — TCV ..............................160
Diagnostic Procedure ...........................................161
Component Inspection ..........................................162
DTC P0745 LINE PRESSURE SOLENOID VALVE .163
Description ............................................................163
Wiring Diagram — AT — LPSV ............................165
Diagnostic Procedure ...........................................166
Component Inspection ..........................................168
DTC P0750 SHIFT SOLENOID VALVE A ...............170
Description ............................................................170
Wiring Diagram — AT — SSV/A ...........................172
Diagnostic Procedure ...........................................173
Component Inspection ..........................................174
DTC P0755 SHIFT SOLENOID VALVE B ...............175
Description ............................................................175
Wiring Diagram — AT — SSV/B ...........................177
Diagnostic Procedure ...........................................178
Component Inspection ..........................................179
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR .......................................................180
Description ............................................................180
Wiring Diagram — AT — TPS ..............................182
Diagnostic Procedure ...........................................183
DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE .....................................................................185
Description ............................................................185
Wiring Diagram — AT — OVRCSV ......................187
Diagnostic Procedure ...........................................188
Component Inspection ..........................................189
DTC U1000 CAN COMMUNICATION LINE ...........
.190
Description ............................................................190
On Board Diagnosis Logic ....................................190
DTC Confirmation Procedure ...............................190
Wiring Diagram — AT — CAN ..............................191
Diagnostic Procedure ...........................................192
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE) .193
Description ............................................................193
Wiring Diagram — AT — BA/FTS .........................195
Diagnostic Procedure ...........................................196
Component Inspection ..........................................198DTC VEHICLE SPEED SENSOR MTR ...................199
Description ............................................................199
Wiring Diagram — AT — VSSMTR .......................201
Diagnostic Procedure ............................................202
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ......................................................................203
Description ............................................................203
Diagnostic Procedure ............................................203
DTC CONTROL UNIT(EEPROM) ...........................205
Description ............................................................205
Diagnostic Procedure ............................................206
TROUBLE DIAGNOSES FOR SYMPTOMS ...........207
Wiring Diagram — AT — NONDTC ......................207
O/D OFF Indicator Lamp Does Not Come On ......209
Engine Cannot Be Started In “P” and “N” Position .211
In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed ...............................................212
In “N” Position, Vehicle Moves ..............................213
Large Shock. “N” → “R” Position ..........................214
Vehicle Does Not Creep Backward In “R” Position .215
Vehicle Does Not Creep Forward In “D”, “2” Or “1”
Position .................................................................218
Vehicle Cannot Be Started From D
1 .....................220
A/T Does Not Shift: D
1→ D2 Or Does Not Kickdown:
D
4→ D2 ...............................................................
.223
A/T Does Not Shift: D
2→ D3 ................................225
A/T Does Not Shift: D
3→ D4 ................................227
A/T Does Not Perform Lock-up .............................229
A/T Does Not Hold Lock-up Condition ..................230
Lock-up Is Not Released .......................................232
Engine Speed Does Not Return To Idle (Light Brak-
ing D
4→ D3 ) ........................................................233
Vehicle Does Not Start From D
1 ...........................234
A / T D o e s N o t S h i f t : D
4→ D3 , W h e n O v e r d r i v e C o n -
trol Switch “ON” → “OFF” .....................................236
A/T Does Not Shift: D
3→ 22 , W h e n S e l e c t o r L e v e r
“D” → “2” Position .................................................237
A/T Does Not Shift: 2
2→ 11 , When Selector Lever
“2” → “1” Position ..................................................238
Vehicle Does Not Decelerate By Engine Brake ....240
TCM Self-diagnosis Does Not Activate .................241
EXC.F/EURO-OBD
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION ........................................................................247
CONSULT-II ..........................................................247
Diagnostic Procedure Without CONSULT-II .........253
TROUBLE DIAGNOSIS — INTRODUCTION .........258
Introduction ...........................................................258
Work Flow .............................................................262
TROUBLE DIAGNOSIS — BASIC INSPECTION ...264
A/T Fluid Check ....................................................264
Stall Test ................................................................265
Line Pressure Test ................................................268
Road Test ..............................................................269
TROUBLE DIAGNOSIS — GENERAL DESCRIP-

AT-3
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AT TION ........................................................................ 287
Symptom Chart .................................................... 287
TCM Terminals and Reference Value ................... 306
CAN COMMUNICATION ........................................ 309
System Description .............................................. 309
TROUBLE DIAGNOSES FOR SYMPTOMS .......... 310
Wiring Diagram — AT — NONDTC ...................... 310
O/D OFF Indicator Lamp Does Not Come On ..... 312
Engine Cannot Be Started In “P” and “N” Position . 314
In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed .............................................. 315
In “N” Position, Vehicle Moves ............................. 315
Large Shock. “N” → “R” Position .......................... 317
Vehicle Does Not Creep Backward In “R” Position . 318
Vehicle Does Not Creep Forward In “D”, “2” Or “1”
Position ................................................................ 321
Vehicle Cannot Be Started From D
1 ..................... 323
A/T Does Not Shift: D
1→ D2 Or Does Not Kick down:
D
4→ D2 ............................................................... 326
A/T Does Not Shift: D
2→ D3 ............................... 328
A/T Does Not Shift: D
3→ D4 ............................... 330
A/T Does Not Perform Lock-up ............................ 332
A/T Does Not Hold Lock-up Condition ................. 333
Lock-up Is Not Released ...................................... 335
Engine Speed Does Not Return To Idle (Light Brak-
ing D
4→ D3 ) ....................................................... 336
Vehicle Does Not Start From D
1 ........................... 338
A/T Does Not Shift: D
4→ D3 , When Overdrive Con-
trol Switch “ON” → “OFF” ..................................... 339
A/T Does Not Shift: D
3→ 22 , W h e n S e l e c t o r L e v e r
“D”→ “2” Position ................................................ 340
A/T Does Not Shift: 2
2→ 11 , W h e n S e l e c t o r L e v e r
“2” → “1” Position ................................................. 341
Vehicle Does Not Decelerate By Engine Brake ... 343
TCM Self-diagnosis Does Not Activate ................ 344
ALL
MAIN POWER SUPPLY AND GROUND CIRCUIT . 350
Wiring Diagram — AT — MAIN ............................ 350
Diagnostic Procedure ........................................... 351
VEHICLE SPEED SENSOR·A/T (REVOLUTION
SENSOR) ................................................................ 353
Description ........................................................... 353
Wiring Diagram — AT — VSSA/T ........................ 355
Diagnostic Procedure ........................................... 356
DTC VEHICLE SPEED SENSOR MTR .................. 358
Description ........................................................... 358
Wiring Diagram — AT — VSSMTR ...................... 360
Diagnostic Procedure ........................................... 361
ACCELE RATOR PEDAL POSITION (APP) SEN-
SOR ........................................................................ 362
Description ........................................................... 362
Wiring Diagram — AT — TPS .............................. 364
Diagnostic Procedure ........................................... 365
SHIFT SOLENOID VALVE A .................................. 367
Description ........................................................... 367
Wiring Diagram — AT — SSV/A .......................... 369Diagnostic Procedure ...........................................370
Component Inspection ..........................................371
SHIFT SOLENOID VALVE B ..................................372
Description ............................................................372
Wiring Diagram — AT — SSV/B ...........................374
Diagnostic Procedure ...........................................375
Component Inspection ..........................................376
OVERRUN CLUTCH SOLENOID VALVE ...............377
Description ............................................................377
Wiring Diagram — AT — OVRCSV ......................378
Diagnostic Procedure ...........................................379
Component Inspection ..........................................380
TORQUE CONVERTER CLUTCH SOLENOID
VALVE .....................................................................381
Description ............................................................381
Wiring Diagram — AT — TCV ..............................383
Diagnostic Procedure ...........................................384
Component Inspection ..........................................385
BATT/FLUID TEMP SEN (A/T FLUID TEMP SEN-
SOR CIRCUIT AND TCM POWER SOURCE) .......386
Description ............................................................386
Wiring Diagram — AT — BA/FTS .........................388
Diagnostic Procedure ...........................................389
Component Inspection ..........................................391
ENGINE SPEED SIGNAL .......................................392
Description ............................................................392
Wiring Diagram — AT — ENGSS .........................393
Diagnostic Procedure ...........................................394
LINE PRESSURE SOLENOID VALVE ..................
.396
Description ............................................................396
Wiring Diagram — AT — LPSV ............................398
Diagnostic Procedure ...........................................399
Component Inspection ..........................................401
CAN COMMUNICATION LINE ...............................403
Description ............................................................403
On Board Diagnosis Logic ....................................403
Self-Diagnosis Code Confirmation Procedure ......403
Wiring Diagram — AT — CAN ..............................404
Diagnostic Procedure ...........................................405
A/T SHIFT LOCK SYSTEM ....................................406
Description ............................................................406
Shift Lock System Electrical Parts Location .........406
Wiring Diagram — SHIFT — ................................407
Diagnostic Procedure ...........................................408
KEY INTERLOCK CABLE ......................................412
Components .........................................................412
Removal ...............................................................412
Installation ............................................................413
ON-VEHICLE SERVICE ..........................................414
Control Valve Assembly and Accumulators ..........414
Control Cable Adjustment .....................................416
Park/Neutral Position (PNP) Switch Adjustment ..416
Differential Side Oil Seal Replacement ................417
Revolution Sensor Replacement ..........................417
REMOVAL AND INSTALLATION ...........................418
Removal ...............................................................418
Installation ............................................................419
OVERHAUL ............................................................421
Components .........................................................421

AT-4
Oil Channel ...........................................................424
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................425
DISASSEMBLY .......................................................426
Disassembly .........................................................426
REPAIR FOR COMPONENT PARTS ......................441
Manual Shaft ........................................................441
Oil Pump ...............................................................444
Control Valve Assembly ........................................448
Control Valve Upper Body ....................................457
Control Valve Lower Body ....................................461
Reverse Clutch .....................................................463
High Clutch ...........................................................466
Forward and Overrun Clutches ............................471
Low & Reverse Brake ...........................................476
Rear Internal Gear, Forward Clutch Hub and Over-
run Clutch Hub ......................................................479
Output Shaft, Idler Gear, Reduction Pinion Gear and
Bearing Retainer ...................................................483
Band Servo Piston Assembly ...............................488
Final Drive ............................................................493
ASSEMBLY .............................................................498
Assembly (1) .........................................................498
Adjustment (1) ......................................................499
Assembly (2) .........................................................504Adjustment (2) .......................................................510
Assembly (3) .........................................................514
SERVICE DATA AND SPECIFICATIONS (SDS) ....521
General Specifications ......................................... .521
Shift Schedule .......................................................521
Stall Revolution .....................................................522
Line Pressure ........................................................522
Control Valves .......................................................522
Accumulator ..........................................................523
Clutch and Brakes .................................................524
Final Drive .............................................................526
Planetary Carrier and Oil Pump ............................527
Input Shaft .............................................................528
Reduction Pinion Gear ..........................................528
Band Servo ...........................................................529
Output Shaft ..................................................
........529
Bearing Retainer ...................................................529
Total End Play .......................................................529
Reverse Clutch End Play ......................................530
Removal and Installation .......................................530
Shift Solenoid Valves ............................................530
Solenoid Valves ....................................................530
A/T Fluid Temperature Sensor ..............................531
Revolution Sensor .................................................531
Dropping Resistor .................................................531

PRECAUTIONS
AT-7
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●After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
The DTC should not be displayed in the “DTC CONFIRMA-
TION PROCEDURE” if the repair is completed.
●Before proceeding with disassembly, thoroughly clean the out-
side of the transaxle. It is important to prevent the internal parts
from becoming contaminated by dirt or other foreign matter.
●Disassembly should be done in a clean work area.
●Use lint-free cloth or towels for wiping parts clean. Common
shop rags can leave fibers that could interfere with the operation
of the transaxle.
●Place disassembled parts in order for easier and proper assembly.
●All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
●Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.
●It is very important to perform functional tests whenever they are indicated.
●The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.
●Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
●Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.
●Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
●After overhaul, refill the transaxle with new ATF.
●When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to “Changing A/T Fluid”, AT-13, "
A/T FLUID" .
Service Notice or PrecautionsECS004Q3
FA I L - S A F E
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of “1”, “2” or “D”. The cus-
tomer may complain of sluggish or poor acceleration.
When the ignition key is turned “ON” following Fail-Safe operation, O/D OFF indicator lamp blinks for about 8
seconds. Refer to AT- 2 5 3 , "
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)" (EXCEPT FOR
EURO-OBD) or AT-51, "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" (EURO-OBD).
The blinking of the O/D OFF indicator lamp for about 8 seconds will appear only once and be cleared. The
customer may resume normal driving conditions.
Always follow the “WORK FLOW”, refer to AT-262, "
Work Flow" (EXCEPT FOR Euro-OBD) or AT- 6 0 , "Work
Flow" (Euro-OBD).
The SELF-DIAGNOSIS results will be as follows:
●The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
●During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:
●External leaks in the hub weld area.
●Converter hub is scored or damaged.
●Converter pilot is broken, damaged or fits poorly into crankshaft.
●Steel particles are found after flushing the cooler and cooler lines.
●Pump is damaged or steel particles are found in the converter.
●Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
SAT652J

AT-8
PRECAUTIONS
●Converter is contaminated with engine coolant containing antifreeze.
●Internal failure of stator roller clutch.
●Heavy clutch debris due to overheating (blue converter).
●Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:
●The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.
●The threads in one or more of the converter bolt holes are damaged.
●Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.
●Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.
EURO-OBD SELF-DIAGNOSIS — EURO-OBD —
●A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the O/D OFF indicator lamp or the malfunction indicator lamp (MIL). Refer to the
table on AT- 4 2 , "
SELF-DIAGNOSTIC RESULT TEST MODE" for the indicator used to display each self-
diagnostic result.
●The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure “HOW TO ERASE DTC” on AT- 3 9 , "
HOW TO ERASE DTC" to com-
plete the repair and avoid unnecessary blinking of the MIL.
●The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when
the O/D OFF indicator lamp does not indicate any malfunctions.
–PNP switch
–A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of EURO-OBD, refer to EC-44, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM" (QR25DE) or EC-
777, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" (QR20DE).
●Certain systems and components, especially those related to EURO-OBD, may use a new style
slide-locking type harness connector.
For description and how to disconnect, refer to PG-68, "
HARNESS CONNECTOR" .
Wiring Diagrams and Trouble DiagnosisECS004Q4
When you read wiring diagrams, refer to the following:
●GI-13, "How to Read Wiring Diagrams"
●PG-2, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:
●GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
●GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident"