system NISSAN TERRANO 2002 Service Repair Manual

Edition: February 2002
Release: February 2002 (01)
Publication No.: SM2E00-1R20E0E
GENERAL INFORMATIONGI
MAINTENANCEMA
ENGINE MECHANICALEM
ENGINE LUBRICATION &
COOLING SYSTEMSLC
ENGINE CONTROL SYSTEMEC
ACCELERATOR CONTROL,
FUEL & EXHAUST SYSTEMFE
CLUTCHCL
MANUAL TRANSMISSIONMT
AUTOMATIC TRANSMISSIONAT
TRANSFERTF
PROPELLER SHAFT &
DIFFERENTIAL CARRIERPD
FRONT AXLE & FRONT SUSPENSIONFA
REAR AXLE & REAR SUSPENSIONRA
BRAKE SYSTEMBR
STEERING SYSTEMST
RESTRAINT SYSTEMRS
BODY & TRIMBT
HEATER & AIR CONDITIONERHA
STARTING & CHARGING SYSTEMSSC
ELECTRICAL SYSTEMEL
ALPHABETICAL INDEXIDX
TERRANO
MODEL R20 SERIES
NISSAN EUROPE N.V.
NISSAN EUROPE N.V.
Produced in The Netherlands

QUICK REFERENCE INDEX

AUTOMATIC TRANSMISSION
SECTION
AT
CONTENTS
PREPARATION AND PRECAUTIONS............................3
Special Service Tools ..................................................3
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............4
Precautions ..................................................................4
Service Notice or Precautions .....................................5
OVERALL SYSTEM........................................................6
A/T Electrical Parts Location .......................................6
Wiring Diagram - A/T -.................................................7
Cross-sectional View ...................................................8
Hydraulic Control Circuits ............................................9
Shift Mechanism ........................................................10
Control System ..........................................................12
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION...............................................................14
Self-diagnosis ............................................................14
Diagnosis by CONSULT-II .........................................20
TROUBLE DIAGNOSIS - Introduction........................22
Introduction ................................................................22
Diagnostic Worksheet ................................................23
Work Flow ..................................................................26
TROUBLE DIAGNOSIS - Basic Inspection................27
A/T Fluid Check .........................................................27
Stall Test ....................................................................27
Line Pressure Test .....................................................30
Road Test...................................................................32
TROUBLE DIAGNOSIS - General Description...........43
Symptom Chart ..........................................................43
TCM Terminals and Reference Value........................46
TROUBLE DIAGNOSIS FOR VHCL SPEED
SEN×A/T.........................................................................49
Wiring Diagram - AT - VSSA/T ..................................49
Vehicle Speed Sensor×A/T (Revolution sensor) ........50
TROUBLE DIAGNOSIS FOR VHCL SPEED
SEN×MTR.......................................................................52
Wiring Diagram - AT - VSSMTR ................................52
Vehicle Speed Sensor×MTR ......................................54TROUBLE DIAGNOSIS FOR THROTTLE POSI
SEN................................................................................56
Wiring Diagram - AT - TPS ........................................56
Throttle (Accelerator) Position Sensor ......................60
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V
A.....................................................................................62
Wiring Diagram - AT - SSV/A ....................................62
Shift Solenoid Valve A ...............................................63
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V
B.....................................................................................65
Wiring Diagram - AT - SSV/B ....................................65
Shift Solenoid Valve B ...............................................66
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH
S/V..................................................................................68
Wiring Diagram - AT - OVRCSV................................68
Overrun Clutch Solenoid Valve .................................69
TROUBLE DIAGNOSIS FOR T/C CLUTCH SOL/V.....71
Wiring Diagram - AT - TCV........................................71
Torque Converter Clutch Solenoid Valve ..................72
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP
SEN................................................................................75
Wiring Diagram - AT - BA/FTS ..................................75
A/T Fluid Temperature Sensor and TCM Power
Source........................................................................76
TROUBLE DIAGNOSIS FOR ENGINE SPEED SIG....79
Wiring Diagram - AT - ENGSS ..................................79
Engine Speed Signal .................................................80
TROUBLE DIAGNOSIS FOR LINE PRESSURE
S/V..................................................................................82
Wiring Diagram - AT - LPSV......................................82
Line Pressure Solenoid Valve ...................................84
TROUBLE DIAGNOSIS FOR NON-DETECTABLE
ITEMS.............................................................................87
Wiring Diagram - AT - PNP/SW.................................87
Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches ...................88
DIAGNOSTIC PROCEDURES FOR SYMPTOMS........94

1. SPORT Indicator Lamp Does Not Come On ........94
2. SPORT or SNOW Indicator Lamp Does Not
Come On...................................................................95
3. O/D OFF Indicator Lamp Does Not Come On......95
4. SPORT Indicator Lamp Does Not Come On ........96
5. Engine Cannot Be Started In²P²and²N²
Position......................................................................97
6. In²P²Position, Vehicle Moves Forward Or
Backward When Pushed...........................................97
7. In²N²Position, Vehicle Moves .............................98
8. Large Shock.²N²->²R²Position .........................99
9. Vehicle Does Not Creep Backward In²R²
Position....................................................................100
10. Vehicle Does Not Creep Forward In²D²,²2²
Or²1²Position.........................................................101
11. Vehicle Cannot Be Started From D
1.................102
12. A/T Does Not Shift: D
1-> D2Or Does Not
Kickdown: D
4-> D2..................................................103
13. A/T Does Not Shift: D
2-> D3............................104
14. A/T Does Not Shift: D
3-> D4.............................105
15. A/T Does Not Perform Lock-up .........................106
16. A/T Does Not Hold Lock-up Condition ..............107
17. Lock-up Is Not Released ...................................107
18. Engine Speed Does Not Return To Idle (Light
Braking D
4-> D3) .....................................................108
19. Vehicle Does Not Start From D
1.......................109
20. A/T Does Not Shift: D
2-> D1When
Depressing Accelerator Pedal................................. 110
21. A/T Does Not Shift: D
4-> D3, When
Overdrive Control Switch²ON²->²OFF²............... 111
22. A/T Does Not Shift: D
3-> 22, When Selector
Lever²D²->²2²Position......................................... 111
23. A/T Does Not Shift: 2
2-> 11, When Selector
Lever²2²->²1²Position ......................................... 112
24. Vehicle Does Not Decelerate By Engine
Brake........................................................................ 112
ON-VEHICLE SERVICE.............................................. 113Control Valve Assembly and Accumulators ............. 113
Revolution Sensor Replacement ............................. 114
Rear Oil Seal Replacement ..................................... 114
Parking Components Inspection.............................. 114
Park/neutral Position Switch Adjustment ................. 114
Manual Control Linkage Adjustment........................ 115
REMOVAL AND INSTALLATION................................ 116
Removal ................................................................... 116
Installation ................................................................ 117
MAJOR OVERHAUL................................................... 119
Oil Channel ..............................................................121
Locations of Needle Bearings, Thrust Washers
and Snap Rings .......................................................122
DISASSEMBLY............................................................123
Disassembly.............................................................123
REPAIR FOR COMPONENT PARTS..........................134
Oil Pump ..................................................................134
Control Valve Assembly ...........................................138
Control Valve Upper Body .......................................144
Control Valve Lower Body .......................................149
Reverse Clutch ........................................................151
High Clutch ..............................................................155
Forward and Overrun Clutches ...............................157
Low & Reverse Brake..............................................161
Forward Clutch Drum Assembly ..............................165
Rear Internal Gear and Forward Clutch Hub ..........168
Band Servo Piston Assembly ..................................171
Parking Pawl Components ......................................175
ASSEMBLY..................................................................177
Assembly (1) ............................................................177
Adjustment ...............................................................185
Assembly (2) ............................................................188
A/T FLUID COOLER SYSTEM...................................195
A/T Fluid Cooler.......................................................195
SERVICE DATA AND SPECIFICATIONS (SDS)........196
General Specifications .............................................196
Specifications and Adjustment.................................196
When you read wiring diagrams:
IRead GI section, ªHOW TO READ WIRING DIAGRAMSº.
ISee EL section, ªPOWER SUPPLY ROUTINGº for power distribution circuit.
When you perform trouble diagnoses, read GI section, ªHOW TO FOLLOW FLOW CHART IN
TROUBLE DIAGNOSESº and ªHOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRI-
CAL INCIDENTº.
CONTENTS(Cont'd)
AT- 2

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger in a frontal collision.
The SRS system composition which is available to NISSAN MODEL R20 is as follows (The composition var-
ies according to the destination.):
Driver air bag module (located in the center of the steering wheel), front passenger air bag module (located
on the instrument panel on passenger side), seat belt pre-tensioner, a diagnosis sensor unit, warning lamp,
wiring harness and spiral cable.
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
ITo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed
by an authorized NISSAN dealer.
IImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
IDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation either just before
the harness connectors or for the complete harness are related to the SRS.
Precautions
IBefore proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to
prevent the internal parts from becoming contaminated by dirt or other foreign matter.
IDisassembly should be done in a clean work area.
IUse lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could inter-
fere with the operation of the transmission.
IPlace disassembled parts in order for easier and proper assembly.
IAll parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
IGaskets, seals and O-rings should be replaced any time the transmission is disassembled.
IIt is very important to perform functional tests whenever they are indicated.
IThe valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place removed parts in a parts rack in order to replace them in correct positions and sequences. Care will
also prevent springs and small parts from becoming scattered or lost.
IProperly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
IBefore assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, and to hold bearings and washers in place during assembly. Do not use grease.
IExtreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
IAfter overhaul, refill the transmission with new ATF.
IWhen 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 ªChanging A/T Fluidº in the MA section when changing A/T fluid.
PREPARATION AND PRECAUTIONS
AT- 4

A/T Electrical Parts Location
YAT352
OVERALL SYSTEM
AT- 6

Wiring Diagram Ð A/T Ð
YAT260
OVERALL SYSTEM
AT- 7

Cross-sectional View
SAT125BA
OVERALL SYSTEM
AT- 8

Hydraulic Control Circuits
SAT624GA
OVERALL SYSTEM
AT- 9

Shift Mechanism
The automatic transmission uses compact, dual planetary gear systems to improve power-transmission
efficiency, simplify construction and reduce weight.
It also employs an optimum shift control and superwide gear ratios. They improve starting performance and
acceleration during medium and high-speed operation.
Two one-way clutches are also employed: one is used for the forward clutch and the other for the low clutch.
These one-way clutches, combined with four accumulators, reduce shifting shock to a minimum.
CONSTRUCTION
q1Torque converter clutch piston
q
2Torque converter
q
3Oil pump
q
4Input shaft
q
5Brake band
q
6Reverse clutch
q
7High clutch
q
8Front pinion gearq
9Front sun gear
q
10Front internal gear
q
11Front planetary carrier
q
12Rear sun gear
q
13Rear pinion gear
q
14Rear internal gear
q
15Rear planetary carrier
q
16Forward clutchq
17Forward one-way clutch
q
18Overrun clutch
q
19Low one-way clutch
q
20Low & reverse brake
q
21Parking pawl
q
22Parking gear
q
23Output shaft
FUNCTION OF CLUTCH AND BRAKE
Control members Abbr. Function
q
6Reverse clutch R/C To transmit input power to front sun gearq9.
q
7High clutch H/C To transmit input power to front planetary carrierq11.
q
16Forward clutch F/C To connect front planetary carrierq11with forward one-way clutchq17.
q
18Overrun clutch O/C To connect front planetary carrierq11with rear internal gearq14.
q
5Brake band B/B To lock front sun gearq9.
q
17Forward one-way clutch F/O.CWhen forward clutch is engaged, to stop rear internal gearq14from rotating in opposite
direction.
q
19Low one-way clutch L/O.C At D1position, to prevent rear internal gearq14from rotating in opposite direction.
q
20Low & reverse brake L & R/BTo lock rear internal gearq14(2, 12and 11), to lock front planetary carrierq11
(R position).
SAT509I
OVERALL SYSTEM
AT-10

CLUTCH AND BAND CHART
Shift positionq6Reverse
clutchq7High
clutchq16Forward
clutchq18Overrun
clutchBand servoq
17Forward
one-
way
clutchq19Low
one-
way
clutchq20Low &
reverse
brakeLock-up Remarks
2nd
apply3rd
release4th
apply
PPARK
POSITION
RqqREVERSE
POSITION
NNEUTRAL
POSITION
D*41stq*1
vv
Automatic shift
1)2)3)4 2ndq*1
qv
3rdqq*1
*2v
4thq
*3qq
21stq
vv
Automatic shift
1)2
2ndq
qv
11stqqvqLocks (held sta-
tionary)
in 1st speed
1+2 2ndqqqv
*1: Operates when overdrive control or A/T mode switch is being set in ªOFFº or ªSPORTº position.
*2: Oil pressure is applied to both 2nd ªapplyº side and 3rd ªreleaseº side of band servo piston. However, brake band does not contract because oil
pressure area on the ªreleaseº side is greater than that on the ªapplyº side.
*3: Oil pressure is applied to 4th ªapplyº side in condition *2 above, and brake band contracts.
*4: A/T will not shift to 4th when overdrive control or A/T mode switch is set in ªOFFº or ªSPORTº position.
q: Operates.
: Operates when throttle opening is less than 3/16, activating engine brake.
v: Operates during ªprogressiveº acceleration.
: Operates but does not affect power transmission.
: Operates when throttle opening is less than 3/16, but does not affect engine brake.
OVERALL SYSTEM
Shift Mechanism (Cont'd)
AT-11