Page 1617 of 1767
Removal and Installation
IDisconnect brake hydraulic line and parking brake cable.
CAUTION:
Use Tool when removing or installing brake tubes.
IRemove stabilizer bar from body
IRemove upper links and lower links from body.
IRemove panhard rod from body.
IDisconnect propeller shaft.
IRemove upper end nuts of shock absorber.
Final tightening for rubber parts requires to be carried out
under unladen condition with tires on ground.
SRA906
SBR820B
SRA935
REAR AXLE AND REAR SUSPENSION
RA-12
Page 1618 of 1767
Components
SRA297A
REAR SUSPENSION
RA-13
Page 1619 of 1767

Coil Spring Shock Absorber
REMOVAL AND INSTALLATION
IRefer to Removal and Installation of REAR AXLE AND REAR
SUSPENSION, RA-12.
When installing coil spring and lower spring seat, pay atten-
tion to its direction.
Be sure spring rubber seat is not twisted and has not slipped
off when installing coil spring.
INSPECTION
ICheck coil spring for yield, deformation or cracks.
ICheck coil spring specifications. Refer to SDS, RA-16.
ICheck shock absorber for oil leakage, cracks or deformation.
ICheck shock absorber specifications. Refer to SDS, RA-16.
ICheck all rubber parts for wear, cracks or deformation. Replace
if necessary.
Upper Link, Lower Link and Panhard Rod
INSPECTION
Check for cracks, distortion or other damage. Replace if necessary.
BUSHING REPLACEMENT
Check for cracks or other damage. Replace with suitable tool if
necessary.
IRemove bushing with suitable tool.
When installing bushing, apply a coating of 1% soap water to
outer wall of bushing.
Always install new bushing.
Do not tap end face of bushing directly with a hammer.
SRA910
SRA898
SRA900
REAR SUSPENSION
RA-14
Page 1620 of 1767
INSTALLATION
When installing each link, pay attention to direction of bolts
and nuts. Refer to REAR SUSPENSION - Components, RA-13.
When installing each rubber part, final tightening must be car-
ried out under unladen condition with tires on ground.
Stabilizer Bar
REMOVAL AND INSTALLATION
IWhen removing and installing stabilizer bar, fix portion A.
SRA909
REAR SUSPENSION
Upper Link, Lower Link and Panhard Rod
(Cont'd)
RA-15
Page 1621 of 1767
General Specifications
COIL SPRING AND SHOCK ABSORBER
Model Hardtop Wagon
Coil spring
Wire diameter mm (in) 13.0 (0.512) 13.5 (0.531)
Free length mm (in) 400 (15.75) 417 (16.42)
Spring constant
N/mm (kg/mm, lb/in)25.5 (2.6, 146) 29 (3.0, 168)
Shock absorber
Shock absorber type Non-adjustable (hydraulic)
Maximum length mm (in) 586 (23.07) 596 (23.46)
Minimum length mm (in) 350 (13.78) 356 (14.02)
Damping force
[at 0.3 m (1.0 ft)/sec.]
N (kg, lb)
Expansion990 - 1,330
(101 - 136,
223 - 229)1,169 - 1,563
(119 - 159,
223 - 351)
Compression346 - 524
(35.3 - 53.4,
77.8 - 117.8)301 - 461
(30.7 - 47.0,
67.7 - 103.6)
RA260
STABILIZER BAR
Model Hardtop Wagon
Diameter mm (in) 23 (0.91) 24 (0.94)
Spring constant
N/mm (kg/mm, lb/in)24.5 (2.5, 140) 29.0 (3.0, 166)
Inspection and Adjustment
WHEEL BEARING
Total end play mm (in) 0 (0)
SERVICE DATA AND SPECIFICATIONS (SDS)
RA-16
Page 1622 of 1767

RESTRAINT SYSTEM
SECTION
RS
CONTENTS
SEAT BELTS...................................................................2
Precautions ..................................................................2
Front Seat Belt.............................................................4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)............6
Precautions ..................................................................6
Preparation ..................................................................7
SRS Configuration .......................................................8
Seat Belt Pre-tensioner with Load Limiter...................9
Built-in Type Side Air Bag............................................9
SRS Component Parts Location ...............................10
Maintenance Items ....................................................10
Diagnosis Sensor Unit ............................................... 11
Front Seat Belt Pre-tensioner ....................................12
Side Air Bag (Satellite) Sensor ..................................13
Driver Air Bag Module and Spiral Cable ...................14
Front Passenger Air Bag Module ..............................17Front Side Air Bag Module ........................................18
Disposal of Air Bag Module and Seat Belt Pre-
tensioner ....................................................................20
Trouble Diagnoses Introduction.................................26
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ..................................................29
Schematic ..................................................................31
Wiring Diagram - SRS -.............................................32
SRS Operation Check ...............................................36
Trouble Diagnoses with CONSULT-II..................37
Trouble Diagnoses without CONSULT-II.............46
Trouble Diagnoses:²AIR BAG²Warning Lamp
Does Not Turn Off .....................................................54
Trouble Diagnoses:²AIR BAG²Warning Lamp
Does Not Turn On .....................................................56
Collision Diagnosis ....................................................57
Page 1623 of 1767

Precautions
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.
IFor 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:
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 should be per-
formed 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.
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 tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precaution for Seat Belt Service
CAUTION:
IBefore removing the seat belt pre-tensioner assembly, turn the ignition switch off, disconnect both
battery cables and wait at least 3 minutes.
IDo not use electrical test equipment for seat belt pre-tensioner connector.
IAfter 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-36)
IDo not disassemble buckle or seat belt assembly.
IReplace anchor bolts if they are deformed or worn out.
INever oil tongue and buckle.
IIf any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.
IIf webbing is cut, frayed, or damaged, replace seat belt assembly.
IWhen replacing seat belt assembly, use a genuine seat belt assembly.
After A Collision
WARNING:
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 if:
IThe 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).
IThe seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide, etc.)
IThe 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.
IAnchor bolts are deformed or worn out.
SEAT BELTS
RS-2
Page 1624 of 1767
NRS127
SEAT BELTS
Precautions (Cont'd)
RS-3