2005 NISSAN X-TRAIL oil pressure

FL-10
[QR]
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY


Visually check O-ring, mounting parts and mating parts for foreign materials and flaws.

Before installing, lubricate new engine oil.

To avoid damage, do not apply an excessive force (pulling or stretching).
2. Insert the clip to the groove of pressure regulator.
3. With the clip installed, insert pressure regulator straight by matching the fuel filter lug and the clip notch.
4. Make sure that the fuel filter lug and clip notch are securely engaged.
PBIC2494E

CL-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartECS008B8
Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
Reference pageCL-5CL-8CL-9CL-12
EM-81
(QR engine models), EM-222
(YD engine models)
CL-14
CL-16
EM-116
(QR engine models),EM-255
(YD engine models)
SUSPECTED PARTS (Possible cause)
CLUTCH PEDAL (Inspection and adjustment)
CLUTCH LINE (Air in line)
MASTER CYLINDER PISTON CUP (Damaged)
OPERATING CYLINDER PISTON CUP (Damaged)
ENGINE MOUNTING (Loose)
RELEASE BEARING (Worn, dirty or damaged)
CLUTCH DISC (Out of true)
CLUTCH DISC (Runout is excessive)
CLUTCH DISC (Lining broken)
CLUTCH DISC (Dirty or burned)
CLUTCH DISC (Oily)
CLUTCH DISC (Worn out)
CLUTCH DISC (Hardened)
CLUTCH DISC (Lack of spline grease)
DIAPHRAGM SPRING (Damaged)
DIAPHRAGM SPRING (Out of tip alignment)
PRESSURE PLATE (Distortion)
FLYWHEEL (Distortion)
SymptomClutch grabs/chatters 1 2 2 2 2 2
Clutch pedal spongy 1 2 2
Clutch noisy 1
Clutch slips 1 2 2 3 4 5
Clutch does not disengage 1 2 3 4 5 5 5 5 5 5 6 6 7

AT-4 Wiring Diagram — AT — TPS ..............................347
Diagnostic Procedure ...........................................348
SHIFT SOLENOID VALVE A ..................................350
Description ............................................................350
CONSULT-II Reference Value ..............................350
On Board Diagnosis Logic ....................................350
Possible Cause .....................................................350
DTC Confirmation Procedure ...............................350
Wiring Diagram — AT — SSV/A ...........................352
Diagnostic Procedure ...........................................353
Component Inspection ..........................................355
SHIFT SOLENOID VALVE B ..................................356
Description ............................................................356
CONSULT-II Reference Value ..............................356
On Board Diagnosis Logic ....................................356
DTC Confirmation Procedure ...............................356
Wiring Diagram — AT — SSV/B ...........................358
Diagnostic Procedure ...........................................359
Component Inspection ..........................................361
OVERRUN CLUTCH SOLENOID VALVE ...............362
Description ............................................................362
CONSULT-II Reference Value ..............................362
On Board Diagnosis Logic ....................................362
Possible Cause .....................................................362
DTC Confirmation Procedure ...............................362
Wiring Diagram — AT — OVRCSV ......................364
Diagnostic Procedure ...........................................365
Component Inspection ..........................................367
TORQUE CONVERTER CLUTCH SOLENOID
VALVE .....................................................................368
Description ............................................................368
CONSULT-II Reference Value ..............................368
On Board Diagnosis Logic ....................................368
Possible Cause .....................................................368
DTC Confirmation Procedure ...............................368
Wiring Diagram — AT — TCV ..............................370
Diagnostic Procedure ...........................................371
Component Inspection ..........................................373
BATT/FLUID TEMP SEN (A/T FLUID TEMP SEN-
SOR CIRCUIT AND TCM POWER SOURCE) ........374
Description ............................................................374
CONSULT-II Reference Value ..............................374
On Board Diagnosis Logic ....................................374
Possible Cause .....................................................374
DTC Confirmation Procedure ...............................375
Wiring Diagram — AT — BA/FTS .........................376
Diagnostic Procedure ...........................................377
Component Inspection ..........................................381
ENGINE SPEED SIGNAL .......................................382
Description ............................................................382
CONSULT-II Reference Value ..............................382
On Board Diagnosis Logic ....................................382
DTC Confirmation Procedure ...............................382
Wiring Diagram — AT — ENGSS .........................383
Diagnostic Procedure ...........................................384
LINE PRESSURE SOLENOID VALVE ...................387
Description ............................................................387
CONSULT-II Reference Value ..............................387
On Board Diagnosis Logic ....................................387Possible Cause .....................................................387
DTC Confirmation Procedure ................................387
Wiring Diagram — AT — LPSV ............................389
Diagnostic Procedure ............................................390
Component Inspection ..........................................393
MAIN POWER SUPPLY AND GROUND CIRCUIT .394
Description ............................................................394
On Board Diagnosis Logic ....................................394
Possible Cause .....................................................394
DTC Confirmation Procedure ................................394
Wiring Diagram — AT — MAIN .............................395
Diagnostic Procedure ............................................396
A/T SHIFT LOCK SYSTEM .....................................398
Description ............................................................398
Shift Lock System Electrical Parts Location ..........398
Wiring Diagram — SHIFT .....................................399
Diagnostic Procedure ............................................400
KEY INTERLOCK CABLE ......................................402
Components ..........................................................402
Removal ................................................................402
Installation .............................................................403
ON-VEHICLE SERVICE ..........................................404
Control Valve Assembly and Accumulators ..........404
Park/Neutral Position (PNP) Switch ......................408
Differential Side Oil Seal Replacement .................410
Revolution Sensor Replacement ..........................412
REMOVAL AND INSTALLATION ............................413
Removal ................................................................413
Installation .............................................................415
OVERHAUL .............................................................416
Components ..........................................................416
Oil Channel ...........................................................422
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................423
DISASSEMBLY .......................................................424
Disassembly ..........................................................424
REPAIR FOR COMPONENT PARTS ......................440
Manual Shaft .........................................................440
Oil Pump ...............................................................443
Control Valve Assembly ........................................448
Control Valve Upper Body .....................................457
Control Valve Lower Body .....................................461
Reverse Clutch .....................................................464
High Clutch ...........................................................469
Forward and Overrun Clutches .............................475
Low & Reverse Brake ...........................................483
Rear Internal Gear, Forward Clutch Hub and Over-
run Clutch Hub ......................................................487
Output Shaft, Idler Gear, Reduction Pinion Gear and
Bearing Retainer ...................................................491
Band Servo Piston Assembly ................................497
Final Drive .............................................................503
ASSEMBLY .............................................................507
Assembly (1) .........................................................507
Adjustment (1) .......................................................508
Assembly (2) .........................................................513
Adjustment (2) .......................................................520
Assembly (3) .........................................................523

AT-5
D
E
F
G
H
I
J
K
L
MA
B
AT
SERVICE DATA AND SPECIFICATIONS (SDS) .... 530
General Specifications ......................................... 530
Shift Schedule ...................................................... 530
Stall Revolution .................................................... 531
Line Pressure ....................................................... 531
Control Valves ...................................................... 531
Accumulator ......................................................... 532
Clutch and Brakes ................................................ 533
Final Drive ............................................................ 535
Planetary Carrier and Oil Pump ........................... 536
Input Shaft ............................................................ 537
Reduction Pinion Gear ......................................... 537Band Servo ...........................................................538
Output Shaft .........................................................538
Bearing Retainer ...................................................538
Total End Play .......................................................538
Reverse Clutch End Play ......................................539
Removal and Installation ......................................539
Shift Solenoid Valves ............................................539
Solenoid Valves ....................................................539
A/T Fluid Temperature Sensor ..............................540
Revolution Sensor ................................................540
Dropping Resistor .................................................540

AT-12
PREPARATION

PREPARATIONPFP:00100
Special Service ToolsECS004Q5
Tool number
Tool nameDescription
KV381054S0
Puller

Removing differential side oil seals

Removing differential side bearing outer race

Removing idler gear bearing outer race
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
ST33400001
Drift

Installing LH differential side oil seal

Installing oil seal on oil pump housing
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
KV40100621
DriftInstalling RH differential side oil seal
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
ST2505S001
Oil pressure gauge set
1. ST25051001 Oil pressure
gauge
2. ST25052000 Hose
3. ST25053000 Joint pipe
4. ST25054000 Adapter
5. ST25055000 Adapter

Measuring line pressure
ST27180001
Puller

Removing idler gear
a: 100 mm (3.94 in)
b: 110 mm (4.33 in)
c: M8 x 1.25P
ST23540000
Pin punch

Removing and installing parking rod plate and
manual plate pins
a: 2.3 mm (0.091 in) dia.
b: 4 mm (0.16 in) dia.
NT414
NT086
NT086
NT097
NT424
NT442

OVERALL SYSTEM
AT-23
D
E
F
G
H
I
J
K
L
MA
B
AT

CLUTCH AND BAND CHART

*1: Operates when overdrive control switch is set in “OFF” position.

*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not con-
tract because oil pressure area on the “release” side is greater than that on the “apply” side.

*3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts.

*4: A/T will not shift to 4th when overdrive control switch is set in “OFF” position.

: Operates.

A: Operates when throttle opening is less than 3/16, activating engine brake.

B: Operates during “progressive” acceleration.

C: Operates but does not affect power transmission.

D: Operates when throttle opening is less than 3/16, but does not affect engine brake. Shift positionRever
se
clutch
5High
clutch
6For-
ward
clutch
15Over-
run
clutch
17Band servo
Forward
one-way
clutch
16Low
one-
way
clutch
18Low &
revers
e
brake
19Lock-
upRemarks
2nd
apply3rd
releas
e4th
apply
PPA R K
POSITION
RREVERSE
POSITION
NNEUTRAL
POSITION
D*41st *1D B B
Automatic
shift
1 ⇔ 2 ⇔ 3 ⇔
4 2nd *1A B
3rd *1A *2C C B
*1
4th C *3C C
21stBBAutomatic
shift
1 ⇔ 2⇐3
2ndB
3rd *2C C B
11stB
Locks (held
stationary) in
1st speed
1 ⇐ 2⇐3 2ndB
3rd *2C C B

AT-36
OVERALL SYSTEM

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-
rized in the TCM.
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 GEAR POSITIONS
CONTROL OF SHIFT VALVES A AND B
Pilot pressure generated by the operation of shift solenoid valves A and B is applied to the end face of shift
valves A and B.
The drawing above shows the operation of shift valve B. When the shift solenoid valve is “ON”, pilot pressure
applied to the end face of the shift valve overcomes spring force, moving the valve upward.
Lock-Up ControlECS00CTE
The torque converter clutch piston in the torque converter is locked to eliminate torque converter slip to
increase power transmission efficiency. The solenoid valve is controlled by an ON-OFF duty signal sent from
the TCM. The signal is converted to an oil pressure signal which controls the torque converter clutch piston.
CONDITIONS FOR LOCK-UP OPERATION
When vehicle is driven in 3rd and 4th gear position, vehicle speed and throttle opening are detected. If the
detected values fall within the lock-up zone memorized in the TCM, lock-up is performed.
SAT008J
Shift solenoid valveGear position
D1 , 21 , 11D2 , 22 , 12D3D4 (O/D) N-P
A ON (Closed) OFF (Open) OFF (Open) ON (Closed) ON (Closed)
B ON (Closed) ON (Closed) OFF (Open) OFF (Open) ON (Closed)
SAT009J
Overdrive control switch ON OFF
Selector lever “D” position
Gear position D
4D3
Vehicle speed sensor More than set value
Throttle position sensor Less than set opening
Closed throttle position switch OFF
A/T fluid temperature sensor More than 40°C (104°F)

OVERALL SYSTEM
AT-39
D
E
F
G
H
I
J
K
L
MA
B
AT

Control ValveECS004QG
FUNCTION OF CONTROL VALVES
Valve name Function
Pressure regulator valve, plug and sleeve
plugRegulates oil discharged from the oil pump to provide optimum line pressure for all driv-
ing conditions.
Pressure modifier valve and sleeve Used as a signal supplementary valve to the pressure regulator valve. Regulates pres-
sure-modifier pressure (signal pressure) which controls optimum line pressure for all
driving conditions.
Pilot valve Regulates line pressure to maintain a constant pilot pressure level which controls lock-up
mechanism, overrun clutch, shift timing.
Accumulator control valve Regulates accumulator back-pressure to pressure suited to driving conditions.
Manual valve Directs line pressure to oil circuits corresponding to select positions.
Hydraulic pressure drains when the shift lever is in Neutral.
Shift valve A Simultaneously switches three oil circuits using output pressure of shift solenoid valve A
to meet driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and upshifting (1st → 2nd → 3rd → 4th gears/4th →
3rd → 2nd → 1st gears) in combination with shift valve B.
Shift valve B Simultaneously switches two oil circuits using output pressure of shift solenoid valve B in
relation to driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and upshifting (1st → 2nd → 3rd → 4th gears/4th →
3rd → 2nd → 1st gears) in combination with shift valve A.
Overrun clutch control valve Switches hydraulic circuits to prevent engagement of the overrun clutch simultaneously
with application of the brake band in D
4 . (Interlocking occurs if the overrun clutch
engages during D
4 .)
1st reducing valve Reduces low & reverse brake pressure to dampen engine-brake shock when downshift-
ing from the 1st position 1
2 to 11 .
Overrun clutch reducing valve Reduces oil pressure directed to the overrun clutch and prevents engine-brake shock.
In the 1st and 2nd positions, line pressure acts on the overrun clutch reducing valve to
increase the pressure-regulating point, with resultant engine brake capability.
Torque converter relief valve Prevents an excessive rise in torque converter pressure.
Torque converter clutch control valve, plug
and sleeveActivates or inactivates the lock-up function.
Also provides smooth lock-up through transient application and release of the lock-up
system.
1-2 accumulator valve and piston Lessens the shock find when the 2nd gear band servo contracts, and provides smooth
shifting.
3-2 timing valve Switches the pace that oil pressure is released depending on vehicle speed; maximizes
the high clutch release timing, and allows for soft downshifting.
Shuttle valve Determines if the overrun clutch solenoid valve should control the 3-2 timing valve or the
overrun clutch control valve and switches between the two.
Cooler check valve At low speeds and with a small load when a little heat is generated, saves the volume of
cooler flow, and stores the oil pressure for lock-up.