2002 NISSAN TERRANO pump

20. A/T Does Not Shift: D2®D1When
Depressing Accelerator Pedal
SYMPTOM:
A/T does not shift from D2to D1when depressing accelerator
pedal fully at the specified speed.
Are 9. Vehicle Does Not Creep
Backward In ªRº Position and 10.
Vehicle Does Not Creep Forward In
ªDº, ª2º Or ª1º Position OK?
Ye s
ENo
Go to 9. Vehicle Does Not
Creep Backward In ªRº Position
and 10. Vehicle Does Not Creep
Forward In ªDº, ª2º Or ª1º
Position, AT-100, AT-101.
Does ªECU INPUT SIGNALº
show damage to park/neutral
position switch circuit?
-----------------------------------------------------------------------------------------------------OR -----------------------------------------------------------------------------------------------------
Does self-diagnosis show dam-
age to park/neutral position
switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-88.
Check vehicle speed sensor×A/T
(revolution sensor) and vehicle
speed sensor×MTR. Refer to AT-50,
AT-54.
OK
ENG
Repair or replace vehicle speed
sensor×A/T (revolution sensor)
and vehicle speed sensor×MTR.
Check throttle (accelerator) position
sensor. Refer to EC section
[TROUBLE DIAGNOSIS FOR
ªTHROTTLE (ACCEL) POSI SENº
(DTC 43)].
OK
ENG
Repair or replace throttle (accel-
erator) position sensor.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
1. Remove control valve. Refer
to AT-113.
2. Check the following items:
IShift valve A
IShift solenoid valve A
IPilot valve
IPilot filter
3. Disassemble A/T.
4. Check the following items:
IServo piston assembly
IBrake band
IOil pump assembly
1. Remove control valve. Refer to
AT-113.
2. Check the following items:
IShift valve A
IShift solenoid valve A
IPilot valve
IPilot filter
OKFOK
Check again.
OK
ENG
1. Perform TCM input/output
signal inspection.
2. If NG, recheck TCM pin termi-
nals for damage or loose con-
nection with harness connec-
tor.
INSPECTION END
SAT146BA
NAT262
SAT171B
H
H
H
H
H
H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-110

7. Check foreign materials in oil pan to help determine cause of
malfunction. If the fluid is very dark, smells burned, or contains
foreign particles, the frictional material (clutches, band) may
need replacement. A tacky film that will not wipe clean indicates
varnish build up. Varnish can cause valves, servo, and clutches
to stick and may inhibit pump pressure.
IIf frictional material is detected, replace radiator after
repair of A/T. Refer to LC section (ªRadiatorº, ªENGINE
COOLING SYSTEMº).
8. Remove torque converter clutch solenoid valve and A/T fluid
temperature sensor connectors.
IBe careful not to damage connector.
9. Remove oil strainer.
a. Remove oil strainer from control valve assembly then remove
O-ring from oil strainer.
b. Check oil strainer screen for damage.
10. Remove control valve assembly.
a. Straighten terminal clips to free terminal cords then remove
terminal clips.
SAT171B
NAT228
SAT008B
SAT025B
SAT009B
DISASSEMBLY
Disassembly (Cont'd)
AT-124

12. Remove converter housing from transmission case.
IBe careful not to scratch converter housing.
13. Remove O-ring from input shaft.
14. Remove oil pump assembly.
a. Attach Tool to oil pump assembly and extract it evenly from
transmission case.
b. Remove O-ring from oil pump assembly.
c. Remove traces of sealant from oil pump housing.
IBe careful not to scratch pump housing.
d. Remove needle bearing and thrust washer from oil pump
assembly.
SAT999A
SAT995A
NAT229
SAT028B
SAT108B
DISASSEMBLY
Disassembly (Cont'd)
AT-126

15. Remove input shaft and oil pump gasket.
16. Remove brake band and band strut.
a. Loosen lock nut and remove band servo anchor end pin from
transmission case.
b. Remove brake band and band strut from transmission case.
c. Hold brake band in a circular shape with clip.
17. Remove front side clutch and gear components.
a. Remove clutch pack (reverse clutch, high clutch and front sun
gear) from transmission case.
SAT988A
SAT029B
SAT986A
SAT655
SAT030B
DISASSEMBLY
Disassembly (Cont'd)
AT-127

Oil Pump
DISASSEMBLY
1. Loosen bolts in numerical order and remove oil pump cover.
2. Remove rotor, vane rings and vanes.
IInscribe a mark on back of rotor for identification of fore-
aft direction when reassembling rotor. Then remove rotor.
3. While pushing on cam ring remove pivot pin.
IBe careful not to scratch oil pump housing.
SAT648AB
SAT649A
SAT650A
SAT651A
REPAIR FOR COMPONENT PARTS
AT-134

4. While holding cam ring and spring lift out cam ring spring.
IBe careful not to damage oil pump housing.
IHold cam ring spring to prevent it from jumping.
5. Remove cam ring and cam ring spring from oil pump housing.
6. Remove pivot pin from control piston and remove control pis-
ton assembly.
7. Remove oil seal from oil pump housing.
IBe careful not to scratch oil pump housing.
INSPECTION
Oil pump cover, rotor, vanes, control piston, side seals,
cam ring and friction ring
ICheck for wear or damage.
SAT652A
SAT653A
SAT654A
SAT655A
SAT656A
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-135

Side clearances
IMeasure side clearances between end of oil pump housing and
cam ring, rotor, vanes and control piston. Measure in at least
four places along their circumferences. Maximum measured
values should be within specified positions.
IBefore measurement, check that friction rings, O-ring, con-
trol piston side seals and cam ring spring are removed.
Standard clearance (Cam ring, rotor, vanes and con-
trol piston):
Refer to SDS, AT-199.
IIf not within standard clearance, replace oil pump assembly
except oil pump cover assembly.
Seal ring clearance
IMeasure clearance between seal ring and ring groove.
Standard clearance:
0.10 - 0.25 mm (0.0039 - 0.0098 in)
Wear limit:
0.25 mm (0.0098 in)
IIf not within wear limit, replace oil pump cover assembly.
ASSEMBLY
1. Drive oil seal into oil pump housing.
IApply ATF to outer periphery and lip surface.
2. Install cam ring in oil pump housing by the following steps.
a. Install side seal on control piston.
IPay attention to its direction Ð Black surface goes toward
control piston.
IApply petroleum jelly to side seal.
b. Install control piston on oil pump.
c. Install O-ring and friction ring on cam ring.
IApply petroleum jelly to O-ring.
SAT657A
SAT658A
NAT295
SAT654A
SAT660A
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-136

d. Assemble cam ring, cam ring spring and spring seat. Install
spring by pushing it against pump housing.
e. While pushing on cam ring install pivot pin.
3. Install rotor, vanes and vane rings.
IPay attention to direction of rotor.
4. Install oil pump housing and oil pump cover.
a. Wrap masking tape around splines of oil pump cover assembly
to protect seal. Position oil pump cover assembly in oil pump
housing assembly, then remove masking tape.
b. Tighten bolts in a criss-cross pattern.
5. Install new seal rings carefully after packing ring grooves with
petroleum jelly. Press rings down into jelly to a close fit.
ISeal rings come in two different diameters. Check fit care-
fully in each groove.
Small dia. seal ring:
No mark
Large dia. seal ring:
Yellow mark in area shown by arrow
IDo not spread gap of seal ring excessively while installing.
It may deform ring.
SAT661A
SAT651A
SAT662A
SAT649A
YAT341
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-137