Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''
The Supplemental Restraint System such as ``AIR BAG'' and ``SEAT BELT PRE-TENSIONER'' 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 Y61 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:
+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 in¯ation, all maintenance must be performed
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. For removal of Spiral Cable and Air
Bag Module, see the RS section.
+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 either just before
the harness connectors or for the complete harness are related to the SRS.
Precautions for Steering System
+Before disassembly, thoroughly clean the outside of the unit.
+Disassembly should be done in a clean work area. It is important to prevent the internal parts from
becoming contaminated by dirt or other foreign matter.
+Place disassembled parts in order, on a parts rack, for easier and proper assembly.
+Use nylon cloths or paper towels to clean the parts; common shop rags can leave lint that might
interfere with their operation.
+Before inspection or reassembly, carefully clean all parts with a general purpose, non-¯ammable
solvent.
+Before assembly, apply a coat of recommended ATF* to hydraulic parts. Vaseline may be applied
to O-rings and seals. Do not use any grease.
+Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals and gaskets during instal-
lation. Perform functional tests whenever designated.
*: Automatic Transmission Fluid type DEXRON
TMIII or equivalent
Special Service Tools
Tool number
Tool nameDescription
KV48100700
Torque adapter
NT169
Measuring turning torque
ST27180001
Steering wheel puller
NT544
Removing steering wheel
PRECAUTIONS AND PREPARATION
ST-1
Checking and Adjusting Drive Belts
Refer to MA section (``Checking Drive Belts'', ``ENGINE MAINTE-
NANCE'').
Checking Fluid Level
Check ¯uid level.
Use the correct range of the dipstick depending on the ¯uid tem-
perature. Use the ``HOT'' range at 50 to 80ÉC (122 to 176ÉF), or the
``COLD'' range at 0 to 30ÉC (32 to 86ÉF).
CAUTION:
+Do not over®ll.
+Recommended ¯uid is Automatic Transmission Fluid type
DEXRON
TMIII or equivalent.
Checking Fluid Leakage
Check the lines for improper attachment and for leaks, cracks,
damage, loose connections, cha®ng and deterioration.
1. Run engine between idle speed and 1,000 rpm.
Make sure temperature of ¯uid in oil tank rises to 60 to 80ÉC
(140 to 176ÉF).
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each ``lock'' position for ®ve seconds and
carefully check for ¯uid leakage.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 15 seconds.
4. If ¯uid leakage at connectors is noticed, loosen ¯are nut and
then retighten.
Do not overtighten connector as this can damage O-ring,
washer and connector.
SST280BA
SST757C
ON-VEHICLE SERVICE
ST-5
