
General Specifications
Engine speed
Unit: rpm
EngineTD27Ti
Idle speed A/C: ON 725
845
Maximum engine speed 5,500
Pump numbers
Engine Part numberPump assembly num-
ber
TD27Ti 16700 7F406 A 460 801 135
Pump data is not yet available.
Refer to CALIBRATION STANDARD published
by BOSCH.
Injection Nozzle
INSPECTION AND ADJUSTMENT
Injection nozzle assembly
Unit: kPa (bar, kg/cm2, psi)
Initial injection pressure
New 12,749 - 13,730 (127.5 - 137.3, 130 - 140,
1,849 - 1,991)
Used 12,259 - 12,749 (122.6 - 127.5, 120 - 135,
1,706 - 1,849)
Inspection and Adjustment
Plunger lift mm (in)
at TDC 0.275 0.02
(0.0108) (0.0008)
Idle speed rpm
(ªNº or ªPº position) 725 25
MASS AIR FLOW SENSOR
Supply voltage
V Approximately 5
Output voltage V1.5 - 2.7*
*: Engine is warmed up sufficiently and idling under no-load.
ENGINE COOLANT TEMPERATURE
SENSOR
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
CONTROL SLEEVE POSITION SENSOR
Resistance [at 25ÉC (77ÉF)] WApproximately 6.1
INJECTION TIMING CONTROL VALVE
Resistance [at 25ÉC (77ÉF)] WApproximately 15
NEEDLE LIFT SENSOR
Resistance [at 25ÉC (77ÉF)] WApproximately 105
CRANKSHAFT POSITION SENSOR (TDC)
Resistance [at 25ÉC (77ÉF)] WApproximately 900
GLOW PLUG
Resistance [at 25ÉC (77ÉF)] W0.5
ACCELERATOR POSITION SENSOR
Throttle valve conditions Resistance kW
[at 25ÉC (77ÉF)]
Completely closed Approximately 1.2
Partially open 1.2 - 1.9
Completely open Approximately 1.9
FUEL TEMPERATURE SENSOR
Temperature ÉC (ÉF)Resistance kW
25 (77) Approximately 1.9
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
EC-476
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Removal and Installation
CAUTION:
The accelerator wire should be adjusted when removing and replacing any parts of the accelerator
control system, shown in the illustration.
a. Warm up engine to normal operating temperature. Then stop it.
b. Check to see if throttle valve fully opens when accelerator pedal is fully depressed and if it returnsto idle position when released.
c. Adjust accelerator pedal free play by turning adjusting nut.
d. Check accelerator control parts for improper contact with any adjacent parts.
e. When connecting accelerator wire, be careful not to twist or scratch its inner wire.
f. Apply a light coat of recommended multi-purpose grease to all sliding or friction surfaces. Do not apply grease to wire.
g. For ASCD wire adjustment, refer to ªASCD Wire Adjustmentº in EL section.
INSPECTION AFTER INSTALLATION
I Check if accelerator pedal moves smoothly within its range.
I Check if accelerator pedal returns securely to its original position.
I Perform ªAccelerator Pedal Released Position Learningº when removing the accelerator pedal position
sensor harness connector. Refer to ªBASIC SERVICE PROCEDUREº in EC section for instructions.
YFE019
ACCELERATOR CONTROL SYSTEMZD30DDTi
FE-2
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Adjusting Accelerator Cable
q1Pedal bracket
q
2Accelerator switch q
3Accelerator position sensor
q
4Accelerator cable q
5Return spring
q
6Accelerator pedal
INSPECTION AFTER INSTALLATION
I Check if accelerator pedal moves smoothly within its range.
I Check if accelerator pedal returns securely to its original position.
I Perform ªAccelerator Pedal Released Position Learningº when removing the accelerator pedal position
sensor harness connector. Refer to ªBASIC SERVICE PROCEDUREº in EC section for instructions.
I If MI illuminates after engine has started, refer to ªON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONº
in EC section for instructions.
NFE032
ACCELERATOR CONTROL SYSTEMTD27Ti
FE-5
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Removal
Transmission has to be removed as a unit together with transfer
box.
Remove transmission assembly as follows:
IDisconnect negative battery terminal.
I Remove shift levers of transmission and transfer.
I Remove front and rear propeller shafts. Ð Refer to PD section.
I Insert plug into rear oil seal after removing propeller shaft.
I Remove RPM-sensor from transmission upper side.
CAUTION:
Be careful not to damage spline, sleeve yoke and rear oil seal,
when removing propeller shaft.
I Remove torsion bar spring. Ð Refer to FA Section.
I Remove third crossmember (the one supporting front differen-
tial).
I Remove fifth crossmember (the one situated at the rear of
transfer).
I Support transmission and transfer with a suitable transmission
jack.
WARNING:
Support transmission and transfer with suitable jacks, while
removing them.
I Remove fourth crossmember (the one supporting transmis-
sion).
I Remove clutch operating cylinder.
I Remove starter motor.
I Remove exhaust tube bracket from transmission.
I Disconnect electrical connectors.
I Remove transmission from engine.
REMOVAL AND INSTALLATIONFS5R30A
MT-7
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IRaise the unit with a hoist.
I Position the transmission assembly on a portable jack and
secure it with a suitable tool.
Lift the assembly until the gearbox input shaft faces its hous-
ing.
Move the assembly towards the engine. The assembly must be
rotated slightly so that the starter motor housing clears the
projection on the companion floor. Insert input shaft into its
housing (slightly raising the rear of the transfer box may facili-
tate the introduction of the shaft into its housing).
I Tighten the screws securing the gearbox to the engine.
:39-49N ×m (4.0 - 5.0 kg-m, 29 - 36 ft-lb)
I Connect the electrical wiring. Secure with the respective clips.
I Fit the RPM-sensor to the transmission upper side.
I Fit the exhaust pipe support bracket to the transfer box.
:13-16N ×m (1.3 - 1.6 kg-m ,9-12ft-lb)
I Fit the starter motor. Secure the earth wire to the starter motor
lower screw.
:31-41N ×m (3.2 - 4.2 kg-m, 23 - 30 ft-lb)
I Fit the clutch slave cylinder.
:30-40N ×m (3.1 - 4.1 kg-m, 22 - 30 ft-lb)
I Install fourth crossmember (Note the ªfrontº mark).
Crossmember fixing bolts to chassis:
:41-52N ×m (4.2 - 5.3 kg-m, 30 - 38 ft-lb)
Crossmember fixing bolts to transmission:
:68-87N ×m (6.9 - 8.9 kg-m, 50 - 64 ft-lb)
I Take away the portable jack holding boxes assembly.
I Install fifth crossmember.
:59-78N ×m (6.0 - 8.0 kg-m, 43 - 58 ft-lb)
I Install third crossmember.
: Screws: 41 - 52 N ×m (4.2 - 5.3 kg-m,
30 - 38 ft-lb)
Nuts: 68 - 87 N ×m (6.9 - 8.9 kg-m,
50 - 64 ft-lb)
I Install torsion bar springs. Ð Refer to FA section.
I Install front and rear propeller shafts. Ð Refer to PD section.
I Install shift levers of transmission and transfer.
:14-18N ×m (1.4 - 1.8 kg-m, 10 - 13 ft-lb)
Bolt head dimensions: Bolt A: 12 mm (0.472 in)
Bolt B: 13 mm (0.512 in)
I Connect negative battery cable.
SMT446B
REMOVAL AND INSTALLATIONFS5R30A
Installation (Cont'd)
MT-9
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AUTOMATIC TRANSMISSIONSECTION
AT
CONTENTS
PREPARATION AND PRECAUTIONS ............................3
Special Service Tools ..................................................3
Supplemental Restraint System (SRS) ²AIR
BAG² and²SEAT BELT PRE-TENSIONER² ...............4
Precautions for SRS ²AIR BAG² and²SEAT
BELT PRE-TENSIONER² Service ...............................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 POWER SUPPLY ..........49
Wiring Diagram - AT - MAIN ......................................49
TCM Power Supply Circuit ........................................50
TROUBLE DIAGNOSIS FOR VHCL SPEED
SEN×A/T ........................................................................\
.51
Wiring Diagram - AT - VSSA/T ..................................51
Vehicle Speed Sensor×A/T (Revolution sensor) ........52 TROUBLE DIAGNOSIS FOR VHCL SPEED
SEN×MTR
.......................................................................54
Wiring Diagram - AT - VSSMTR ................................54
Vehicle Speed Sensor×MTR ......................................56
TROUBLE DIAGNOSIS FOR THROTTLE POSI
SEN ........................................................................\
........58
Wiring Diagram - AT - TPS ........................................58
Throttle (Accelerator) Position Sensor ......................62
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V
A ........................................................................\
.............64
Wiring Diagram - AT - SSV/A ....................................64
Shift Solenoid Valve A ...............................................65
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V
B ........................................................................\
.............67
Wiring Diagram - AT - SSV/B ....................................67
Shift Solenoid Valve B ...............................................68
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH
S/V ........................................................................\
..........70
Wiring Diagram - AT - OVRCSV................................70
Overrun Clutch Solenoid Valve .................................71
TROUBLE DIAGNOSIS FOR T/C CLUTCH SOL/V .....73
Wiring Diagram - AT - TCV........................................73
Torque Converter Clutch Solenoid Valve ..................74
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP
SEN ........................................................................\
........77
Wiring Diagram - AT - BA/FTS ..................................77
A/T Fluid Temperature Sensor and TCM Power
Source........................................................................\
78
TROUBLE DIAGNOSIS FOR ENGINE SPEED SIG ....81
Wiring Diagram - AT - ENGSS ..................................81
Engine Speed Signal .................................................82
TROUBLE DIAGNOSIS FOR LINE PRESSURE
S/V ........................................................................\
..........84
Wiring Diagram - AT - LPSV......................................84
Line Pressure Solenoid Valve ...................................86
TROUBLE DIAGNOSIS FOR NON-DETECTABLE
ITEMS........................................................................\
.....89 Wiring Diagram - AT - PNP/SW.................................89
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Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches ...................93
DIAGNOSTIC PROCEDURES FOR SYMPTOMS ........99
1. SPORT Indicator Lamp Does Not Come On ........99
2. SPORT or SNOW Indicator Lamp Does Not Come On.................................................................100
3. O/D OFF Indicator Lamp Does Not Come On....100
4. SPORT Indicator Lamp Does Not Come On ......101
5. Engine Cannot Be Started In ²P² and ²N²
Position....................................................................102
6. In ²P² Position, Vehicle Moves Forward Or
Backward When Pushed.........................................102
7. In ²N² Position, Vehicle Moves ...........................103
8. Large Shock. ²N² ->²R² Position .......................104
9. Vehicle Does Not Creep Backward In ²R²
Position....................................................................105
10. Vehicle Does Not Creep Forward In ²D² ,²2²
Or ²1² Position.........................................................106
11. Vehicle Cannot Be Started From D
1.................107
12. A/T Does Not Shift: D
1-> D2Or Does Not
Kickdown: D
4-> D2..................................................108
13. A/T Does Not Shift: D
2-> D3............................109
14. A/T Does Not Shift: D
3-> D4............................. 110
15. A/T Does Not Perform Lock-up ......................... 111
16. A/T Does Not Hold Lock-up Condition .............. 112
17. Lock-up Is Not Released ................................... 112
18. Engine Speed Does Not Return To Idle (Light Braking D
4-> D3)..................................................... 113
19. Vehicle Does Not Start From D
1....................... 114
20. A/T Does Not Shift: D
2-> D1When
Depressing Accelerator Pedal................................. 115
21. A/T Does Not Shift: D
4-> D3, When
Overdrive Control Switch ²ON² ->²OFF² ............... 116
22. A/T Does Not Shift: D
3-> 22, When Selector
Lever ²D² ->²2² Position......................................... 116
23. A/T Does Not Shift: 2
2-> 11, When Selector
Lever ²2² ->²1² Position ......................................... 117
24. Vehicle Does Not Decelerate By Engine
Brake........................................................................\
117 ON-VEHICLE SERVICE
.............................................. 118
Control Valve Assembly and Accumulators ............. 118
Revolution Sensor Replacement ............................. 119
Rear Oil Seal Replacement ..................................... 119
Parking Components Inspection.............................. 119
Park/neutral Position Switch Adjustment ................. 119
Manual Control Linkage Adjustment........................120
REMOVAL AND INSTALLATION ................................121
Removal ...................................................................121
Installation ................................................................122
MAJOR OVERHAUL ...................................................124
Oil Channel ..............................................................126
Locations of Needle Bearings, Thrust Washers
and Snap Rings .......................................................127
DISASSEMBLY ............................................................128
Disassembly.............................................................128
REPAIR FOR COMPONENT PARTS ..........................139
Oil Pump ..................................................................139
Control Valve Assembly ...........................................143
Control Valve Upper Body .......................................149
Control Valve Lower Body .......................................154
Reverse Clutch ........................................................156
High Clutch ..............................................................160
Forward and Overrun Clutches ...............................162
Low & Reverse Brake..............................................166
Forward Clutch Drum Assembly ..............................170
Rear Internal Gear and Forward Clutch Hub ..........173
Band Servo Piston Assembly ..................................176
Parking Pawl Components ......................................180
ASSEMBLY ..................................................................182
Assembly (1) ............................................................182
Adjustment ...............................................................190
Assembly (2) ............................................................193
A/T FLUID COOLER SYSTEM ...................................200
A/T Fluid Cooler.......................................................200
SERVICE DATA AND SPECIFICATIONS (SDS) ........201
General Specifications .............................................201
Specifications and Adjustment.................................201
When you read wiring diagrams:
I Read GI section, ªHOW TO READ WIRING DIAGRAMSº.
I See 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
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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 for certain types of
collision. The SRS composition which is available to NISSAN MODEL R20 is as follows (The composition
varies according to the destination and optional equipment.):
IFor a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
I For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
WARNING:
I To 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 should be per-
formed by an authorized NISSAN dealer.
I Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
I Do 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 tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precautions for SRS ªAIR BAGº and ªSEAT
BELT PRE-TENSIONERº Service
IDo not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
I Before servicing the SRS, turn ignition switch ªOFFº, disconnect both battery cables and wait at least 3
minutes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
I Diagnosis sensor unit must always be installed with their arrow marks ª +º pointing towards the front of
the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before
installation and replace as required.
I The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
I Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module (built-in type) standing with stud bolt side setting
bottom.
I Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
I After air bag inflates, the front instrument panel assembly should be replaced if damaged.
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.
I Disassembly should be done in a clean work area.
I Use 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.
I Place disassembled parts in order for easier and proper assembly.
I All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
I Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
I It is very important to perform functional tests whenever they are indicated.
I The 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.
I Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
PREPARATION AND PRECAUTIONS
AT- 4
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