2003 NISSAN X-TRAIL brake fluid

AT-2
DTC P0732 A/T 2ND GEAR FUNCTION ................158
Description ............................................................158
Wiring Diagram — AT — 2ND ..............................161
Diagnostic Procedure ...........................................162
Component Inspection ..........................................163
DTC P0733 A/T 3RD GEAR FUNCTION ................165
Description ............................................................165
Wiring Diagram — AT — 3RD ..............................168
Diagnostic Procedure ...........................................169
Component Inspection ..........................................170
DTC P0734 A/T 4TH GEAR FUNCTION ................172
Description ............................................................172
Wiring Diagram — AT — 4TH ...............................175
Diagnostic Procedure ...........................................176
Component Inspection ..........................................179
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................181
Description ............................................................181
Wiring Diagram — AT — TCV ..............................183
Diagnostic Procedure ...........................................184
Component Inspection ..........................................185
DTC P0745 LINE PRESSURE SOLENOID VALVE. 186
Description ............................................................186
Wiring Diagram — AT — LPSV ............................188
Diagnostic Procedure ...........................................189
Component Inspection ..........................................191
DTC P0750 SHIFT SOLENOID VALVE A ...............193
Description ............................................................193
Wiring Diagram — AT — SSV/A ...........................195
Diagnostic Procedure ...........................................196
Component Inspection ..........................................197
DTC P0755 SHIFT SOLENOID VALVE B ...............198
Description ............................................................198
Wiring Diagram — AT — SSV/B ...........................200
Diagnostic Procedure ...........................................201
Component Inspection ..........................................202
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR .......................................................203
Description ............................................................203
Wiring Diagram — AT — TPS ..............................205
Diagnostic Procedure ...........................................206
DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE .....................................................................208
Description ............................................................208
Wiring Diagram — AT — OVRCSV ......................210
Diagnostic Procedure ...........................................211
Component Inspection ..........................................212
DTC U1000 CAN COMMUNICATION LINE ............213
Description ............................................................213
On Board Diagnosis Logic ....................................213
..............................................................................213
Wiring Diagram — AT ...........................................214
Diagnostic Procedure ...........................................215
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE). 216
Description ............................................................216
Wiring Diagram — AT — BA/FTS .........................218Diagnostic Procedure ............................................ 219
Component Inspection .......................................... 221
DTC VEHICLE SPEED SENSOR MTR ................... 222
Description ............................................................ 222
Wiring Diagram — AT — VSSMTR ....................... 224
Diagnostic Procedure ............................................ 225
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ...................................................................... 226
Description ............................................................ 226
Diagnostic Procedure ............................................ 227
DTC CONTROL UNIT(EEPROM) ........................... 228
Description ............................................................ 228
Diagnostic Procedure ............................................ 229
TROUBLE DIAGNOSES FOR SYMPTOMS ........... 230
.............................................................................. 230
1. O/D OFF Indicator Lamp Does Not Come On .. 232
2. Engine Cannot Be Started In “P” and “N” Position. 233
3. In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed ............................................... 234
4. In “N” Position, Vehicle Moves .......................... 234
5. Large Shock. “N”®“R” Position ...................... 236
6. Vehicle Does Not Creep Backward In “R” Position. 237
7. Vehicle Does Not Creep Forward In “D”, “2” Or
“1” Position ............................................................ 240
8. Vehicle Cannot Be Started From D
1................. 242
9. A/T Does Not Shift: D
1®D2Or Does Not Kick-
down: D
4®D2..................................................... 244
10. A/T Does Not Shift: D
2®D3.......................... 246
11.A/TDoesNotShift:D
3®D4........................... 249
12. A/T Does Not Perform Lock-up ....................... 252
13. A/T Does Not Hold Lock-up Condition ............ 253
14. Lock-up Is Not Released ................................. 254
15. Engine Speed Does Not Return To Idle (Light
Braking D
4®D3) ................................................. 255
16. Vehicle Does Not Start From D
1..................... 257
17. A/T Does Not Shift: D
4®D3, When Overdrive
Control Switch “ON”®“OFF” ............................... 258
18. A/T Does Not Shift: D
3®22, When Selector
Lever “D”®“2” Position ....................................... 258
19. A/T Does Not Shift: 2
2®11, When Selector
Lever “2”®“1” Position ........................................ 259
20. Vehicle Does Not Decelerate By Engine Brake. 259
21. TCM Self-diagnosis Does Not Activate (PNP &
Overdrive Control Switches, and Throttle Position
Sensor Circuit Checks) ......................................... 260
EXC.F/EURO-OBD
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION ........................................................................ 267
CONSULT-II .......................................................... 267
Diagnostic Procedure Without CONSULT-II ......... 273
TROUBLE DIAGNOSIS — INTRODUCTION ......... 279
Introduction ........................................................... 279
Work Flow ............................................................. 284
TROUBLE DIAGNOSIS — BASIC INSPECTION ... 286
A/T Fluid Check .................................................... 286
Stall Test ................................................................ 287

AT-3
D
E
F
G
H
I
J
K
L
MA
B
AT Line Pressure Test ............................................... 290
Road Test ............................................................. 291
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION ........................................................................ 308
Symptom Chart .................................................... 308
TCM Terminals and Reference Value ................... 347
CAN COMMUNICATION ........................................ 351
System Description .............................................. 351
TROUBLE DIAGNOSES FOR SYMPTOMS .......... 352
............................................................................. 352
1. O/D OFF Indicator Lamp Does Not Come On . 354
2. Engine Cannot Be Started In “P” and “N” Position. 355
3. In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed .............................................. 356
4. In “N” Position, Vehicle Moves ......................... 356
5. Large Shock. “N”®“R” Position ...................... 358
6. Vehicle Does Not Creep Backward In “R” Position. 359
7. Vehicle Does Not Creep Forward In “D”, “2” Or
“1” Position ........................................................... 362
8. Vehicle Cannot Be Started From D
1................. 364
9. A/T Does Not Shift: D
1®D2Or Does Not Kick-
down: D
4®D2..................................................... 366
10. A/T Does Not Shift: D
2®D3......................... 368
11.A/TDoesNotShift:D
3®D4.......................... 371
12. A/T Does Not Perform Lock-up ...................... 374
13. A/T Does Not Hold Lock-up Condition ........... 375
14. Lock-up Is Not Released ................................ 376
15. Engine Speed Does Not Return To Idle (Light
Braking D
4®D3) ................................................ 377
16. Vehicle Does Not Start From D
1..................... 379
17. A/T Does Not Shift: D
4®D3, When Overdrive
Control Switch “ON”®“OFF” .............................. 380
18. A/T Does Not Shift: D
3®22, When Selector
Lever “D”®“2” Position ...................................... 380
19. A/T Does Not Shift: 2
2®11, When Selector
Lever “2”®“1” Position ....................................... 381
20. Vehicle Does Not Decelerate By Engine Brake. 381
21. TCM Self-diagnosis Does Not Activate (PNP &
Overdrive Control Switches, and Throttle Position
Sensor Circuit Checks) ........................................ 382
ALL
MAIN POWER SUPPLY AND GROUND CIRCUIT. 389
Wiring Diagram — AT — MAIN ............................ 389
Diagnostic Procedure ........................................... 390
VEHICLE SPEED SENSOR·A/T (REVOLUTION
SENSOR) ................................................................ 392
Description ........................................................... 392
Wiring Diagram — AT — VSSA/T ........................ 394
Diagnostic Procedure ........................................... 395
DTC VEHICLE SPEED SENSOR MTR .................. 397
Description ........................................................... 397
Wiring Diagram — AT — VSSMTR ...................... 399
Diagnostic Procedure ........................................... 400
ACCELE RATOR PEDAL POSITION (APP) SEN-
SOR ........................................................................ 401
Description ........................................................... 401Wiring Diagram — AT — TPS ..............................403
Diagnostic Procedure ...........................................404
SHIFT SOLENOID VALVE A ..................................406
Description ............................................................406
Wiring Diagram — AT — SSV/A ...........................408
Diagnostic Procedure ...........................................409
Component Inspection ..........................................410
SHIFT SOLENOID VALVE B ..................................411
Description ............................................................411
Wiring Diagram — AT — SSV/B ...........................413
Diagnostic Procedure ...........................................414
Component Inspection ..........................................415
OVERRUN CLUTCH SOLENOID VALVE ...............416
Description ............................................................416
Wiring Diagram — AT — OVRCSV ......................418
Diagnostic Procedure ...........................................419
Component Inspection ..........................................420
TORQUE CONVERTER CLUTCH SOLENOID
VALVE .....................................................................421
Description ............................................................421
Wiring Diagram — AT — TCV ..............................423
Diagnostic Procedure ...........................................424
Component Inspection ..........................................425
BATT/FLUID TEMP SEN (A/T FLUID TEMP SEN-
SOR CIRCUIT AND TCM POWER SOURCE) .......426
Description ............................................................426
Wiring Diagram — AT — BA/FTS .........................428
Diagnostic Procedure ...........................................429
Component Inspection ..........................................431
ENGINE SPEED SIGNAL .......................................432
Description ............................................................432
Wiring Diagram — AT — ENGSS .........................433
Diagnostic Procedure ...........................................434
LINE PRESSURE SOLENOID VALVE ...................436
Description ............................................................436
Wiring Diagram — AT — LPSV ............................438
Diagnostic Procedure ...........................................439
Component Inspection ..........................................441
CAN CAMMUNICATION LINE ................................443
Description ............................................................443
On Board Diagnosis Logic ....................................443
Self-Diagnosis Code Confirmation Procedure ......443
Wiring Diagram — AT — CAN ..............................444
Diagnostic Procedure ...........................................445
A/T SHIFT LOCK SYSTEM ....................................446
Description ............................................................446
Shift Lock System Electrical Parts Location .........446
Wiring Diagram — SHIFT — ................................447
Diagnostic Procedure ...........................................448
KEY INTERLOCK CABLE ......................................452
Components .........................................................452
Removal ...............................................................452
Installation ............................................................453
ON-VEHICLE SERVICE ..........................................454
Control Valve Assembly and Accumulators ..........454
Control Cable Adjustment .....................................456
Park/Neutral Position (PNP) Switch Adjustment ..456

AT-4
Differential Side Oil Seal Replacement .................457
Revolution Sensor Replacement ..........................457
REMOVAL AND INSTALLATION ...........................458
Removal ...............................................................458
Installation .............................................................459
OVERHAUL .............................................................461
Components .........................................................461
Oil Channel ...........................................................464
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................465
DISASSEMBLY .......................................................466
Disassembly .........................................................466
REPAIR FOR COMPONENT PARTS ......................482
Manual Shaft ........................................................482
Oil Pump ...............................................................485
Control Valve Assembly ........................................489
Control Valve Upper Body ....................................498
Control Valve Lower Body ....................................502
Reverse Clutch .....................................................504
High Clutch ...........................................................507
Forward and Overrun Clutches ............................512
Low & Reverse Brake ...........................................518
Rear Internal Gear, Forward Clutch Hub and Over-
run Clutch Hub ......................................................521
Output Shaft, Idler Gear, Reduction Pinion Gear and
Bearing Retainer ...................................................525
Band Servo Piston Assembly ...............................530
Final Drive ............................................................535ASSEMBLY ............................................................. 540
Assembly (1) ......................................................... 540
Adjustment (1) ....................................................... 541
Assembly (2) ......................................................... 546
Adjustment (2) ....................................................... 553
Assembly (3) ......................................................... 556
SERVICE DATA AND SPECIFICATIONS (SDS) .... 563
General Specifications .......................................... 563
Shift Schedule ....................................................... 563
Stall Revolution ..................................................... 563
Line Pressure ........................................................ 563
Control Valves ....................................................... 564
Accumulator .......................................................... 564
Clutch and Brakes ................................................. 564
Final Drive ............................................................. 566
Planetary Carrier and Oil Pump ............................ 567
Input Shaft ............................................................. 568
Reduction Pinion Gear .......................................... 568
Band Servo ........................................................... 569
Output Shaft .......................................................... 569
Bearing Retainer ................................................... 569
Total End Play ....................................................... 569
Reverse Clutch End Play ...................................... 570
Removal and Installation ....................................... 570
Shift Solenoid Valves ............................................ 570
Solenoid Valves .................................................... 570
A/T Fluid Temperature Sensor .............................. 570
Revolution Sensor ................................................. 571
Dropping Resistor ................................................. 571

A/T FLUID
AT-13
D
E
F
G
H
I
J
K
L
MA
B
AT
A/T FLUIDPFP:KLE40
Checking A/T FluidECS004Q7
1. Warm up engine.
2. Check for fluid leakage.
3. Before driving, fluid level can be checked at fluid temperatures
of 30 to 50°C (86 to 122°F) using “COLD” range on dipstick.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi-
tion. Leave selector lever in “P” position.
c. Check fluid level with engine idling.
d. Remove dipstick and note reading. If level is at low side of either
range, and fluid to the charging pipe.
e. Re-insert dipstick into charging pipe as far as it will go.
f. Remove dipstick and note reading. If reading is at low side of range, add fluid to the charging pipe.
Do not overfill.
4. Drive vehicle for approximately 5 minutes in urban areas.
5. Re-check fluid level at fluid temperatures of 50 to 80°C (122 to 176°F) using “HOT” range on dipstick.
6. Check fluid condition.
lIf fluid is very dark or smells burned, refer to AT section for
checking operation of A/T. Flush cooling system after repair of
A/T.
lIf A/T fluid contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer toCO-12,
"RADIATOR",CO-15, "RADIATOR (ALUMINUM TYPE)",,.
Changing A/T FluidECS004Q8
1. Warm up A/T fluid.
2. Stop engine.
3. Drain A/T fluid from drain plug and refill with new A/T fluid.
Always refill same volume with drained fluid.
4. Run engine at idle speed for five minutes.
5. Check fluid level and condition. Refer to “Checking A/T Fluid”. If fluid is still dirty, repeat steps 2 through 5.
SMA827CA
SMA853B
Fluid grade:
Genuine Nissan ATF or equivalent. Refer toMA-
17, "RECOMMENDED FLUIDS AND LUBRI-
CANTS".
Fluid capacity (With torque converter):
Approx. 8.0 (7.01 lmp qt)
Drain plug:
:29-39N·m(3.0-4.0kg-m,22-29ft-lb)
SMA027D

AT-28
OVERALL SYSTEM
CONTROL SYSTEM
TCM FUNCTION
ThefunctionoftheTCMisto:
lReceive input signals sent from various switches and sensors.
lDetermine required line pressure, shifting point, lock-up operation, and engine brake operation.
lSend required output signals to the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCM
SCIA0690E
Sensors, switches and solenoid
valvesFunction
InputPNP switch Detects select lever position and sends a signal to TCM.
Throttle position sensor (accelerator
pedal position(app) sensorDetects throttle valve position and sends a signal to TCM.
Engine speed signal From ECM.
A/T fluid temperature sensor Detects transmission fluid temperature and sends a signal to TCM.
Revolution sensor Detects output shaft rpm and sends a signal to TCM.
Vehicle speed sensorUsed as an auxiliary vehicle speed sensor. Sends a signal when revolution
sensor (installed on transmission) malfunctions.
Overdrive control switch*1Sends a signal, which prohibits a shift to “D
4” (overdrive) position, to the
TCM.
Stop lamp switch Releases lock-up system when depressing pedal in lock-up condition.

AT-30
OVERALL SYSTEM
At Low Fluid Temperature
lFluid viscosity and frictional characteristics of the clutch facing change with fluid temperature. Clutch
engaging or band-contacting pressure is compensated for, according to fluid temperature, to stabilize
shifting quality.
lThe line pressure is reduced below 60°C(140°F) to prevent
shifting shock due to low viscosity of automatic transmission
fluid when temperature is low.
lLine pressure is increased to a maximum irrespective of the
throttle opening when fluid temperature drops to-10°C(14°F).
This pressure rise is adopted to prevent a delay in clutch and
brake operation due to extreme drop of fluid viscosity at low
temperature.
SHIFT CONTROL
The shift is regulated entirely by electronic control to accommodate vehicle speed and varying engine opera-
tions. This is accomplished by electrical signals transmitted by the revolution sensor and throttle position sen-
sor. This results in improved acceleration performance and fuel economy.
Control of Shift Solenoid Valves A and B
The TCM activates shift solenoid valves A and B according to sig-
nals from the throttle position sensor and revolution sensor to select
the optimum gear position on the basis of the shift schedule memo-
rizedintheTCM.
The shift solenoid valve performs simple ON-OFF operation. When
set to “ON”, the drain circuit closes and pilot pressure is applied to
the shift valve.
Relation Between Shift Solenoid Valves A and B and Gear Positions
SAT006J
SAT007J
SAT008J
Shift solenoid valveGear position
D1,21,11D2,22,12D3D4(OD) N-P
A ON (Closed) OFF (Open) OFF (Open) ON (Closed) ON (Closed)
B ON (Closed) ON (Closed) OFF (Open) OFF (Open) ON (Closed)

AT-58
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Diagnostic Worksheet
1.oRead the Fail-safe and listen to customer complaints.AT-57, "Infor-
mation from
Customer"
2.oCHECK A/T FLUIDAT-64, "A/T
Fluid Check"oLeakage (Follow specified procedure)
oFluid condition
oFluid level
3.oPerform STALL TEST and LINE PRESSURE TEST.AT-65, "
Stall
Te s t",AT- 6 8 ,
"Line Pres-
sure Test"
oStall test — Mark possible damaged components/others.
oTorque converter one-way clutch
oReverse clutch
oForward clutch
oOverrun clutch
oForward one-way clutchoLow & reverse brake
oLow one-way clutch
oEngine
oLine pressure is low
oClutches and brakes except high clutch and
brake band are OK
oLine Pressure test — Suspected parts:

AT-60
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
4. 4-
3.Cruise testAT-74, "3.
CRUISE
TEST"
AT-78,
"Cruise Test
—Part 1"
Part-1
o8. Vehicle Cannot Be Started From D
1,AT- 2 4 2 , "8. Vehicle Cannot Be Started From D1".
o9. A/T Does Not Shift: D
1®D2Or Does Not Kickdown: D4®D2,AT-244, "9. A/T Does Not Shift: D1
®D2Or Does Not Kickdown: D4®D2".
o10. A/T Does Not Shift: D
2®D3,AT-246, "10. A/T Does Not Shift: D2®D3".
o11. A/T Does Not Shift: D
3®D4,AT-249, "11.A/TDoesNotShift:D3®D4".
o12. A/T Does Not Perform Lock-up,AT-252, "
12. A/T Does Not Perform Lock-up".
o13. A/T Does Not Hold Lock-up Condition,AT-253, "
13. A/T Does Not Hold Lock-up Condition".
o14. Lock-up Is Not Released,AT-254, "
14. Lock-up Is Not Released".
o15. Engine Speed Does Not Return To Idle (Light Braking D
4®D3),AT- 2 5 5 , "15. Engine Speed Does
Not Return To Idle (Light Braking D4®D3)".
Part-2AT-81,
"Cruise Test
—Part 2"o16. Vehicle Does Not Start From D1,AT-257, "16. Vehicle Does Not Start From D1".
o9. A/T Does Not Shift: D
1®D2Or Does Not Kickdown: D4®D2,AT-244, "9. A/T Does Not Shift: D1
®D2Or Does Not Kickdown: D4®D2".
o10. A/T Does Not Shift: D
2®D3,AT-246, "10. A/T Does Not Shift: D2®D3".
o11. A/T Does Not Shift: D
3®D4,AT-249, "11.A/TDoesNotShift:D3®D4".
Part-3AT-83,
"Cruise Test
—Part 3"o17. A/T Does Not Shift: D4®D3When Overdrive Control Switch “ON”®“OFF”,AT- 2 5 8 , "17. A/T Does
Not Shift: D4®D3, When Overdrive Control Switch“ON”®“OFF”".
o15. Engine Speed Does Not Return To Idle (Engine Brake In D
3),AT- 2 5 5 , "15. Engine Speed Does Not
Return To Idle (Light Braking D4®D3)".
o18. A/T Does Not Shift: D
3®22, When Selector Lever “D”®“2” Position,AT- 2 5 8 , "18. A/T Does Not
Shift: D3®22, When Selector Lever“D”®“2”Position".
o15. Engine Speed Does Not Return To Idle (Engine Brake In 2
2),AT-255, "15. Engine Speed Does Not
Return To Idle (Light Braking D4®D3)".
o19. A/T Does Not Shift: 2
2®11, When Selector Lever “2”®“1” Position,AT-259, "19. A/T Does Not
Shift: 22®11, When Selector Lever“2”®“1”Position".
o20. Vehicle Does Not Decelerate By Engine Brake,AT- 2 5 9 , "
20. Vehicle Does Not Decelerate By Engine
Brake".
o21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive control switches, and throttle position sen-
sor circuit checks),AT-260, "
21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control
Switches, and Throttle Position Sensor Circuit Checks)".
oSELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCE-
DURE — Mark detected items.
oPNP switch,AT-130, "
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH".
oA/T fluid temperature sensor,AT- 1 3 6 , "
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIR-
CUIT".
oVehicle speed sensor·A/T (Revolution sensor),AT-142, "
DTC P0720 VEHICLE SPEED SEN-
SOR·A/T (REVOLUTION SENSOR)".
oEngine speed signal,AT-147, "
DTC P0725 ENGINE SPEED SIGNAL".
oTorque converter clutch solenoid valve,AT- 1 8 1 , "
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE".
oLine pressure solenoid valve,AT- 1 8 6 , "
DTC P0745 LINE PRESSURE SOLENOID VALVE".
oShift solenoid valve A,AT-193, "
DTC P0750 SHIFT SOLENOID VALVE A".
oShift solenoid valve B,AT-198, "
DTC P0755 SHIFT SOLENOID VALVE B".
oAccelerator pedal position (App) sensor,AT- 2 0 3 , "
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR".
oOverrun clutch solenoid valve,AT-208, "
DTCP1760OVERRUNCLUTCHSOLENOIDVALVE".
oPNP & overdrive control switches, and throttle position sentor,AT- 2 6 0 , "
21. TCM Self-diagnosis
Does Not Activate (PNP & Overdrive Control Switches, and Throttle Position Sensor Circuit Checks)"
.
oA/T fluid temperature sensor and TCM power source,AT- 2 1 6 , "
DTCBATT/FLUIDTEMPSEN(A/T
FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)".
oVehicle speed sensor·MTR,AT- 2 2 2 , "
DTC VEHICLE SPEED SENSOR MTR".
oCAN communication line,EC-114, "
DTC U1000 CAN COMMUNICATION LINE".
oControl unit (RAM), control unit (ROM),AT- 2 2 6 , "
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM)".
oControl unit (EEP ROM),AT-228, "
DTC CONTROL UNIT(EEPROM)".
oBattery
oOthers