1998 NISSAN GT-R suspension

TCSfABS SYSTEM
Component Parts
Location
[El TCSIABS
Rear wheel sensor
Throttle motor relay
Front right wheel
senso
Throttle control unit
Front left wheel sensor
@ RH side of engine compartment
// /LA~A~~~~
RH side of rear suspension t%ernb&- /
I Rear wheel sensor connector
Engine compartment control unit
-- -- -- -
- - LH side of engine compartment
Behind LH side lower fi

ELECTRIC SUPER HICAS
INSPECTION BEFORE DRIVING
Check fluid leakage from power steering components (gear, pump, piping, etc.), and check whether the
fluid level is within the proper range.
Check whether tire size and inflation pressure are within the specified limits. Check also whether the
steering wheel is a genuine part, and whether a non-genuine control unit is attached.
Check whether wheel alignment is within the specified limits.
Check whether suspension system is modified, and whether the modification, if any, has increased the
vehicle weight.
INSPECTION DURING DRIVING
Check facts about trouble (what, when, where, who, why and how).
Check whether the engine is running in good condition.
System Description
This system contains two functions for SUPER HICAS: self-diagnosis function and fail-safe function.
For self-diagnosis function, refer to "SELF-DIAGNOSIS PROCEDURE on pages ST-7 and
ST-12.
FAIL-SAFE FUNCTION
If the system detects some error, it halts the normal control and enters the fail-safe mode.
In this event, the system notifies the driver of a malfunction by turning ON the HICAS warning lamp.
The fail-safe mode is canceled when ignition switch
is turned OFF. If, however, the fail-safe mode is caused
by a vehicle speed signal error, it is automatically canceled when the signal is restored before the ignition
switch is turned OFF.
HICAS WARNING LAMP
When the system is in normal condition, HICAS warning lamp is turned ON by switching the ignition ON, and
is turned OFF after engine has started.

ELECTRIC SUPER HICAS
Preliminary
Check
1. Check HICAS actuator for improper attachment and condi-
tions.
Check the actuator for loose fasteners, damage in actuator
body, rods and dust boots, and grease leaks.
@
2. Check suspension system for improper attachment of links and
excessive play in axles.
3. Check all connectors for improper connections. yp 'SU 4. Conduct inspection using self-diagnosis function.
Trouble Diagnosis with CONSULT AT
DESCRIPTION
The trouble diagnoses have four modes: Self-diagnosis, Data B8
monitor, Active test and ECM Part Number modes.
Mode
SELF-D'AGNoSTIC
RESULTS
DATA MONITOR
ACTIVE TEST
ECM PART NUMBER
SELF-DIAG RESULTS I + DATA MONITOR
ACTIVE
TEST
ECM PART NUMBER
u
Function
Displays results of self-diagnosis.
Used to find main causes of trouble,
based on the result of self-diagnosis.
0 Monitors, records and prints the input and
output of
HICAS control unit.
Used to find main causes of trouble,
based on the result of data monitor.
Used to check the operation of actuator
by sending driving signals to it.
a Displays the part number of control unit.
I
SELF-DIAGNOSIS PROCEDURE
$ SELECT DlAG MODE u] r
After connecting CONSULT to data link connector, start the
engine.
Mode switching
Mode is switched simply by
touching the CONSULT
screen.
Touch START (on CONSULT display).
Touch
HICAS.
Touch SELF-DIAG RESULTS.
Refer to CONSULT operation manual
iiHICASJ' for details.
Display
RS
Qkl
The CONSULT screen dis-
plays the data.
EL

REAR WIPER
Component
Parts Location
Rear of suspension tower (RH)
Circuit Diagram
IGN :
Q
Rear washer motor
B Rear wiper motor I-
Washer motor operation
detection signal I
1 Rear wiper and washer SW
Intermittent position de!ection signal I ~SHIOFFI 111~~ INTI - ON IWIW~
I * Wiper motor operation signal
Rear Wiper Amplifier InputlOutput Signal
Specifications
Measuring condition
lanition
switch
/ O~eration
Terminal No.
Signal name Specification
Washer motor operation detection
signal
Wiper operation signal
Ground
Intermittent position detection signal
I ON I Wiper switch
Wlper
motor operation signal ON
ON
ON
ACC power
supply
I I I (Reference)
INT . Other than INT
Washer
motor is in operation.
Washer motor is not in operation.
Wiper motor is in operation.
Wiper motor is not
in operation.
-
Approx. OV
ARD~OX. 12V Approx.
OV
Approx.
12V
Approx. OV
Approx.
12V
AD~rox. OV
. .
Approx. 12V 1 I ON -

SERVICE DATA
SECTION SD
CONTENTS
L ] RB20DE (UB) [I 17 FS5R30A 1-
ENGINE MECHANICAL ............................................... 2 MANUAL TRANSMISSION ........................................... 10
-1 RB25DE /I
ENGINE MECHANICAL .................................................. 4
17 RB25DET I]
ENGINE MECHANICAL .................................................. 6
CLUTCH.. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . . . . . . . . . . .. . . . .+.. . . . . . . . . . -8
71 FS5W71C
MANUAL TRANSMISSION
.................... ......................... 9
AUTOMATIC TRANSMISSION ........................... .......... 12
TRANSFER .............. ......... ..... .. ... ........ . . ............. 18
PROPELLER SHAFT ................................................. 19
FRONT FINAL DRIVE ................................................. 20
REAR FINAL DRIVE ..................................................... 22
DRIVE SHAFT ............................................................... 24
AXLE & SUSPENSION ................................................. 25
ROAD WHEEL AND TIRE ............................................. 27
BRAKE. ... ...... . .. ... . .... . . . . . .... . .. .. . . .. . . .. . . . .. . . .. ... .. .. . . . . . . . . .. .... . -28
STEERING ........... ............. ..... ... ............... ...... ................ 29
SUPER HICAS ............................................................ 30

AXLE & SUSPENSION
WHEEL ALIGNMENT -
1 Camber I -0°45'-t45'
[caster
1 6"35'+45'
I Amount of side slip (Reference)(Only for HICAS)
mm I In 5 to Out 5
WHEEL BEARING
- -
12"50'-t45' GI
0 to In 2
In
5 to Out 5
-0°55'&30' EG
0 to Out 5.2
Front
Rear
- -
Location T Front axle
r- King pin inclination
Toe-in mm
Amount of side slip (Reference)
mm
Camber
Toe-in rnm
Applied model
I 2WD
Rotating torque
N.m
(kg-m)
Spring scale set position Less than
2.45 (0.25)
(NSK make)
Less than 3.33 (0.34)
(NTN make)
Spring scale measurement
N (kg) Without
SUPER HICAS
Less than
15.9 (1.63)
(NSK make)
Less than 21.6 (2.21)
(NTN make) Rear
axle
0.30
- 1 .I7 (0.03 - 0.12)
(NSK make)
0.520
- 1.882 (0.053 - 0.192)
(NTN make)
5.0
- 21 (0.5 - 2.2)
(NSK make)
2.95
- 10.5 (0.30 - 1 .O8)
(NTN make)
End play
mm l 0 With
SUPER HICAS
BALL JOINT
Oscillating torque N-m (kg-m)
Spring scale measurement (at cotter pin hole)
N (kg)
Sliding torque
N.m
(kg-m)
End play mm 0.50
- 3.40
(0.05 - 0.35)
7.95
- 55.3 (0.81 - 5.64)
0.50
- 3.40 (0.05 - 0.35)
0

STEERING
STEERING GEAR STEERING WHEEL
Steering wheel end play rnm -- -
Steering wheel free play rnm1 0-35 0
Steering gear type
Rack neutral position "L" mm
Amount of steering gear housing movement mm
I Within 22 PR29, PR26AD, PR26AF
68.5
STEERING
ANGLE
STEERING COLUMN
Inner wheel
Outer wheel 42"
33"
STC0101
D 88
Primary tightening torque 5.0 - 5.8 8T
Steering column length "L" mm
Retainer
adjustment
61
0
Re-tightening torque after loosening
once 5.0
- 5.8 Rs N.m (kg-m) (0.5 - 0.6)
MA
Range
within ill .5 mm from
STEERING LINKAGE Less than 98.0 EL (1 0.0)
(30.0)
Full range
Rack
sliding
force
Steering gear type
Oscillating torque 0.30
- 2.94
Nm
(kg-m)
(0.03 - 0.30) variations Less
than 147
Spring scale measurement
(at stud bolt hole) 6.48
- 64.6
N
(kg)
(0.66 - 6.59)
Tie-rod
ball joint
outer socket OIL PUMP Sliding torque 0.30 - 2.94
End play
Oscillating torque
1 .O - 7.8
Maximum oil pump pressure
MPa (kg/cm2) 8.822: (90)
(Without HICAS)
7.842:; (80)
(With HICAS)
STEERING FLUID Tie-rod ball joint
inner socket Spring
scale measurement (at
arrow position in figure below) 19.0 - 152
N (kg) (1.90 - 15.5)
Fluid capacity P I Approx. 1.0
End play mm Less than 0.2
mm 173.3
TIGHTENING TORQUE Tie-rod length "L"
Unit: N.m (kq-m)
Steering wheel nut
Steering gear to suspension member
Hydraulic tube (high pressure side) to oil
/ 50 - 68 (5.0 - 7.0)
Pump
30
- 39
(3.0 - 4.0)
89
- 91 (9.0 - 9.3)
24
- 29 (2.4 - 3.0)
30
- 39 (3.0 - 4.0)
79
- 98 (8.0 - 10.0)
32 - 42 (3.2 - 4.3)
14
- 17 (1.4 - 1.8)
Steering gear
to steering column
Outer socket to steering knuckle
Tie-rod lock nut
Oil pump fixing bolt
Hydraulic tube to
steering gear Large
Small
High pressure side
Low pressure side 15
- 24 (1.5 - 2.5)
28
- 39 (2.8 - 4.0)