transmission oil NISSAN X-TRAIL 2003 Electronic Repair Manual

PREPARATION
AT-9
D
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PREPARATIONPFP:00100
Special Service ToolsECS004Q5
Tool number
To o l n a m eDescription
KV381054S0 Puller
lRemoving differential side oil seals
lRemoving differential side bearing outer race
lRemoving idler gear bearing outer race
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
ST33400001 Drift
lInstalling differential side oil seal
F04B
lInstalling oil seal on oil pump housing
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
lMeasuring line pressure
ST27180001 Puller
lRemoving idler gear
a: 100 mm (3.94 in)
b: 110 mm (4.33 in)
c: M8 x 1.25P
ST23540000 Pin punch
lRemoving and installing parking rod plate and
manual plate pins
a: 2.3 mm (0.091 in) dia.
b: 4 mm (0.16 in) dia.
ST25710000 Pin punch
lAligning groove of manual shaft and hole of
transmission case
a: 2 mm (0.08 in) dia.
NT414
NT086
NT097
NT424
NT442
NT410

AT-20
OVERALL SYSTEM
l*1: Operates when overdrive control switch is set in “OFF” position.
l*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.
l*3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts.
l*4: A/T will not shift to 4th when overdrive control switch is set in “OFF” position.
l*5: Operates when overdrive control switch is “OFF”.
l:Operates.
lA: Operates when throttle opening is less than 3/16, activating engine brake.
lB: Operates during “progressive” acceleration.
lC: Operates but does not affect power transmission.
lD: Operates when throttle opening is less than 3/16, but does not affect engine brake.
POWER TRANSMISSION
“N” and “P” Positions
l“N” position
Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.
l“P” position
NNEUTRAL
POSITION
D*41st *1D B B
Automatic
shift
1Û2Û3Û
4 2nd *1A B
3rd *1A *2C C B
*5
4th C *3C C
21st D B BAutomatic
shift
1Û2 2nd A B
11stBLocks (held
stationary) in
1st speed
1Ü2 2ndB 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

OVERALL SYSTEM
AT-31
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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 CONTROL
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 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.
Torque Converter Clutch Solenoid Valve Control
The torque converter clutch solenoid valve is controlled by the TCM.
The plunger closes the drain circuit during the “OFF” period, and
opens the circuit during the “ON” period. If the percentage of OFF-
time increases in one cycle, the pilot pressure drain time is reduced
and pilot pressure remains high.
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)
SAT010J

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-113
[EURO-OBD]
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Vehicle will not run in any position.ON vehicle1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
2. Control cable adjustmentAT-456,
"Control
Cable
Adjustment"
¬
3. Line pressure testAT-68, "
Line
Pressure
Te s t"
¬
4. Line pressure solenoid valveAT-436,
"LINE
PRES-
SURE
SOLENOID
VA LV E"
AT-186,
"DTC P0745
LINE PRES-
SURE
SOLENOID
VA LV E"
OFF vehicle5. Oil pumpAT-485, "
Oil
Pump"¬
6. High clutchAT-507,
"High
Clutch"
¬
7. Brake bandAT-530,
"Band
Servo Pis-
ton Assem-
bly"
¬
8. Low & reverse brakeAT-518,
"Low&
Reverse
Brake"
¬
9. Torque converterAT-465,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬
10. Parking componentsAT-461,
"Compo-
nents"
¬
Transmission noise in “D”, “2”, “1”
and “R” positions.ON vehicle 1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
OFF vehicle 2. Torque converterAT-465,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

AT-118
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Transmission overheats. OFF vehicle7. Oil pumpAT- 4 8 5 , "
Oil
Pump"¬
8. Reverse clutchAT- 5 0 4 ,
"Reverse
Clutch"
¬
9. High clutchAT- 5 0 7 ,
"High
Clutch"
¬
10. Brake bandAT- 5 3 0 ,
"Band
Servo Pis-
ton Assem-
bly"
¬
11. Forward clutchAT- 5 1 2 ,
"Forward
and Overrun
Clutches"
¬
12. Overrun clutchAT- 5 1 2 ,
"Forward
and Overrun
Clutches"
¬
13. Low & reverse brakeAT- 5 1 8 ,
"Low&
Reverse
Brake"
¬
14. Torque converterAT- 4 6 5 ,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-335
[EXC.F/EURO-OBD]
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Vehicle will not run in any position.ON vehicle1. Fluid levelAT-286,
"FLUID
LEVEL
CHECK"
¬
2. Control cable adjustmentAT-456,
"Control
Cable
Adjustment"
¬
3. Line pressure testAT-290,
"Line Pres-
sure Test"
¬
4. Line pressure solenoid valveAT-436,
"LINE
PRES-
SURE
SOLENOID
VA LV E"
AT-186,
"DTC P0745
LINE PRES-
SURE
SOLENOID
VA LV E"
OFF vehicle5. Oil pumpAT-485, "
Oil
Pump"¬
6. High clutchAT-507,
"High
Clutch"
¬
7. Brake bandAT-530,
"Band
Servo Pis-
ton Assem-
bly"
¬
8. Low & reverse brakeAT-518,
"Low&
Reverse
Brake"
¬
9. Torque converterAT-465,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬
10. Parking componentsAT-461,
"Compo-
nents"
¬
Transmission noise in “D”, “2”, “1”
and “R” positions.ON vehicle 1. Fluid levelAT-286,
"FLUID
LEVEL
CHECK"
¬
OFF vehicle 2. Torque converterAT-465,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

AT-340
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Transmission overheats. OFF vehicle7. Oil pumpAT- 4 8 5 , "
Oil
Pump"¬
8. Reverse clutchAT- 5 0 4 ,
"Reverse
Clutch"
¬
9. High clutchAT- 5 0 7 ,
"High
Clutch"
¬
10. Brake bandAT- 5 3 0 ,
"Band
Servo Pis-
ton Assem-
bly"
¬
11. Forward clutchAT- 5 1 2 ,
"Forward
and Overrun
Clutches"
¬
12. Overrun clutchAT- 5 1 2 ,
"Forward
and Overrun
Clutches"
¬
13. Low & reverse brakeAT- 5 1 8 ,
"Low&
Reverse
Brake"
¬
14. Torque converterAT- 4 6 5 ,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

AT-454
[ALL]
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE
PFP:00000
Control Valve Assembly and AccumulatorsECS0040C
REMOVAL
1. Drain ATF from transaxle.
2. Remove oil pan and gasket.
3. Disconnect A/T solenoid valve harness connector.
4. Remove snap ring from A/T solenoid harness terminal body.
5. Remove A/T solenoid harness by pushing terminal body into
transmission case.
SAT992C
SAT064K
SCIA0789E

DISASSEMBLY
AT-469
[ALL]
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14. Remove N-D accumulator piston and return spring with com-
pressed air.
15. Remove O-rings from N-D accumulator piston.
16. Check accumulator pistons and contact surface of transmission
case for damage.
17. Check accumulator return springs for damage and free length.
18. Remove lip seals.
19. Remove L & R oil tube and oil sleeve.
20. Remove converter housing according to the following proce-
dures.
a. Remove converter housing mounting bolts.
b. Remove converter housing by tapping it lightly.
SAT020D
SAT023DA
SAT006F
SAT862HA
SAT008F

AT-470
[ALL]
DISASSEMBLY
c. Remove O-ring from differential oil port.
21. Remove final drive assembly from transmission case.
22. Remove differential side bearing outer race and side bearing
adjusting shim from transmission case.
23. Remove differential side bearing adjusting shim from transmis-
sion case.
SAT235F
SAT228F
SAT010FC
SAT031D