Page 1817 of 2493
SST887C
+Remove rear bracket and rear body.
+Remove side plate seal, cam ring vane, rotor side and plate.
SST036A
+Remove inlet connector and outlet connector with spring.
Be careful not to drop the flow control valve.
Do not disassemble the flow control valve.
SST888C
+Remove oil seal
SST889C
+Remove snap ring, then draw drive shaft.
Be careful not to drop drive shaft.
InspectionNJST0042+If pulley is cracked or deformed, replace it.
+If an oil leak is found around pulley shaft oil seal, replace the
seal.
+If serration on pulley or pulley shaft is deformed or worn,
replace it.
POWER STEERING OIL PUMP (YD ENGINE)
Disassembly (Cont'd)
ST-27
Page 1818 of 2493
SST038A
AssemblyNJST0043Assemble oil pump, noting the following instructions.
+Make sure O-rings and oil seal are properly installed.
+Always install new O-rings and oil seal.
+Be careful of oil seal direction.
+Cam ring, rotor and vanes must be replaced as a set if neces-
sary.
+Coat each part with DEXRON
TMIII or equivalent when assem-
bling.
SST289A
+Pay attention to the direction of rotor.
SST843A
+When assembling vanes to rotor, rounded surfaces of vanes
must face cam ring side.
SST472C
+Insert pin 2 into pin groove 1 of front housing and front side
plate. Then install cam ring 3 as shown at left.
Cam ring:
D
1is less than D2.
POWER STEERING OIL PUMP (YD ENGINE)
Assembly
ST-28
Page 1819 of 2493
General SpecificationsNJST0032
Steering modelPower steering
Steering gear typePR25T
Steering overall gear ratio16.8
Turns of steering wheel (Lock to lock)2.9
Steering column typeCollapsible, tilt
Steering WheelNJST0033
Steering wheel axial play mm (in)0 (0)
Steering wheel play mm (in)35 (1.38) or less
Movement of gear housing mm (in)±2(±0.08) or less
Steering ColumnNJST0034
Steering column length ªLº mm (in) 545 - 547 (21.46 - 21.54)
SST855C
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
ST-29
Page 1820 of 2493

Steering Gear and LinkageNJST0035
Applied modelQG engine YD engine
Steering gear typePR25T
Tie-rod outer ball jointSwinging force at cotter pin hole: ªAº N (kg, lb) 64.6 - 65.0 (6.59 - 6.63, 14.52 - 14.61)
Rotating torque: ªBº N´m (kg-cm, in-lb) 0.29 - 2.94 (3.0 - 30.0, 2.6 - 26.0)
Axial end play: ªCº mm (in) 0 (0)
Tie-rod inner ball jointSwinging force*: ªAº N (kg, lb) 1.61 - 12.9 (0.164 - 1.32, 0.36 - 2.90)
Axial end play: ªCº mm (in) 0 (0)
Tie-rod standard length ªLº mm (in) 132 (5.20) 136 (5.35)
SST867C
Rack stroke ªSº mm (in)65.0 (2.559)
SST086BA
Power SteeringNJST0036
Steering gear typePR25T
Rack sliding
force N (kg, lb)
Under normal oper-
ating oil pressureRange within±11.5 mm (±0.453 in)
from the neutral position at rack
speed of 3.5 mm (0.138 in)/sAverage force 132 - 308 (13.5 - 31.4, 30 - 69)
Maximum force deviation 176 (17.9, 39)
Except for the above rangeMaximum sliding force Ð
Maximum force deviation Ð
Steering wheel turning force
(Measured at one full turn from the neutral position) N (kg, lb)39 (4, 9) or less
Fluid capacity (Approximate)!(Imp qt)1.0 (7/8)
Oil pump maximum pressure kPa (bar, kg/cm
2, psi)QG15, 18 engines 8,600 - 9,200 (86.0 - 92.0, 87.72 - 93.84, 1,247 - 1,334)
YD22 engine 8,800 - 9,400 (88.0 - 94.0, 88.7 - 95.8, 1,261 - 1,362)
SERVICE DATA AND SPECIFICATIONS (SDS)
Steering Gear and Linkage
ST-30
Page 1821 of 2493

RESTRAINT SYSTEM
SECTION
RS
CONTENTS
SEAT BELTS...................................................................3
Precautions ..................................................................3
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
²AIR BAG²AND²SEAT BELT PRE-TENSIONER²
........3
PRECAUTION FOR SEAT BELT SERVICE..................3
Maintenance ................................................................4
Front Seat Belt.............................................................5
REMOVAL AND INSTALLATION/4-DOOR SEDAN.......5
REMOVAL AND INSTALLATION/5-DOOR
HATCHBACK
.............................................................7
REMOVAL AND INSTALLATION/3-DOOR
HATCHBACK
.............................................................9
Rear Seat Belt ........................................................... 11
REMOVAL AND INSTALLATION/4-DOOR SEDAN
WITH 2-POINT TYPE REAR CENTER SEAT BELT
.... 11
REMOVAL AND INSTALLATION/4-DOOR SEDAN
WITH 3-POINT TYPE REAR CENTER SEAT BELT
....13
REMOVAL AND INSTALLATION/HATCHBACK
WITH 3-POINT TYPE REAR CENTER SEAT
.............15
ISO Fix Child Restraint Anchor .................................18
REMOVAL AND INSTALLATION...............................18
Tether Anchor Plate ...................................................19
REMOVAL AND INSTALLATION...............................19
SUPPLEMENTAL RESTRAINT SYSTEM (SRS).........20
Precautions ................................................................20
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
²AIR BAG²AND²SEAT BELT PRE-TENSIONER²
......20
PRECAUTIONS FOR SRS²AIR BAG²AND²SEAT
BELT PRE-TENSIONER²SERVICE
...........................20
WIRING DIAGRAMS AND TROUBLE DIAGNOSIS.....20
Preparation ................................................................21
SPECIAL SERVICE TOOLS......................................21
COMMERCIAL SERVICE TOOL................................22
SRS Configuration .....................................................22
Seat Belt Pre-tensioner with Load Limiter.................23
Built-in Type Side Air Bag..........................................23
SRS Component Parts Location ...............................24
Maintenance Items ....................................................25
Diagnosis Sensor Unit ...............................................26
REMOVAL AND INSTALLATION...............................26
Front Seat Belt Pre-tensioner ....................................27
REMOVAL AND INSTALLATION...............................27
Side Air Bag (Satellite) Sensor ..................................27
REMOVAL AND INSTALLATION...............................27
Driver Air Bag Module and Spiral Cable ...................29
REMOVAL AND INSTALLATION/WITH 4-SPOKE
STEERING WHEEL
.................................................29
REMOVAL...............................................................29
INSTALLATION........................................................31
Front Passenger Air Bag Module ..............................32
REMOVAL...............................................................32
INSTALLATION........................................................33
Front Side Air Bag Module ........................................33
REMOVAL...............................................................33
INSTALLATION........................................................34
Disposal of Air Bag Module and Seat Belt Pre-
tensioner ....................................................................35
CHECKING DEPLOYMENT TOOL.............................35
DEPLOYMENT PROCEDURES FOR AIR BAG
MODULE (OUTSIDE OF VEHICLE)
...........................36
DEPLOYMENT PROCEDURES FOR SEAT BELT
PRE-TENSIONER (OUTSIDE OF VEHICLE)
..............39
DEPLOYMENT OF AIR BAG MODULE AND SEAT
BELT PRE-TENSIONER WHILE MOUNTED IN
VEHICLE
.................................................................39
DISPOSING OF AIR BAG MODULE AND SEAT
BELT PRE-TENSIONER
...........................................40
Trouble Diagnoses Introduction.................................41
DIAGNOSIS FUNCTION...........................................41
DIAGNOSIS MODE FOR CONSULT-II.......................41
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II
...................................................42
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITHOUT CONSULT-II
............................................42
HOW TO ERASE SELF-DIAGNOSIS RESULTS.........43
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ..................................................44
INFORMATION FROM CUSTOMER..........................44
PRELIMINARY CHECK............................................44
WORK FLOW..........................................................45
Wiring Diagram - SRS -.............................................46
SEDAN MODELS.....................................................47
Page 1822 of 2493

HATCHBACK MODELS............................................48
SRS Operation Check ...............................................49
DIAGNOSTIC PROCEDURE 1..................................49
Trouble Diagnoses with CONSULT-II...................50
DIAGNOSTIC PROCEDURE 2..................................50
DIAGNOSTIC PROCEDURE 3..................................54
DIAGNOSTIC PROCEDURE 4 (CONTINUED
FROM DIAGNOSTIC PROCEDURE 2)
......................56
DIAGNOSTIC PROCEDURE 5..................................56
Trouble Diagnoses without CONSULT-II..............60
DIAGNOSTIC PROCEDURE 6..................................60
DIAGNOSTIC PROCEDURE 7..................................65
DIAGNOSTIC PROCEDURE 8 (CONTINUED
FROM DIAGNOSTIC PROCEDURE 6)
......................67
Trouble Diagnoses:²AIR BAG²Warning Lamp
Does Not Turn Off .....................................................68
DIAGNOSTIC PROCEDURE 9..................................68
Trouble Diagnoses:²AIR BAG²Warning Lamp
Does Not Turn On .....................................................70
DIAGNOSTIC PROCEDURE 10................................70
Collision Diagnosis ....................................................71
FOR FRONTAL COLLISION.....................................71
FOR SIDE COLLISION.............................................73
CONTENTS(Cont'd)
RS-2
Page 1823 of 2493

Precautions
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ªAIR BAGº AND ªSEAT BELT
PRE-TENSIONERº
NJRS0001The 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 N16 is as follows (The composition
varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver's 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.
+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:
+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.
+Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow harness connector.
PRECAUTION FOR SEAT BELT SERVICENJRS0002CAUTION:
+Before removing the seat belt pre-tensioner assembly, turn the ignition switch off, disconnect both
battery cables and wait at least 3 minutes.
+Do not use electrical test equipment for seat belt pre-tensioner connector.
+After replacing or reinstalling seat belt pre-tensioner assembly, or reconnecting seat belt pre-ten-
sioner connector, check the system function. Refer to ªSRS Operation Checkº for details. (RS-49)
+Do not disassemble buckle or seat belt assembly.
+Replace anchor bolts if they are deformed or worn out.
+Never oil tongue and buckle.
+If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.
+If webbing is cut, frayed, or damaged, replace seat belt assembly.
+When replacing seat belt assembly, use a genuine seat belt assembly.
After A CollisionNJRS0002S01WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the
collision was minor and the belts show no damage and continue to operate properly. Failure to do so
could result in serious personal injury in an accident. Seat belt assemblies not in use during a colli-
sion should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioner
should be replaced even if the seat belts are not in use during a frontal collision in which the air bags
are deployed.
Replace any seat belt assembly (including anchor bolts) if:
+The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).
+The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide, etc.)
+The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for dam-
age or distortion and repair as necessary before installing a new seat belt assembly.
+Anchor bolts are deformed or worn out.
+The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.
SEAT BELTS
Precautions
RS-3
Page 1824 of 2493
MaintenanceNJRS0055
SRS888
SEAT BELTS
Maintenance
RS-4