NISSAN ALMERA N16 2001 Electronic Repair Manual

Preparation
SPECIAL SERVICE TOOLS=NJRS0009
Tool number
Tool nameDescription
KV99106400
Deployment tool
NT357
Disposing of air bag module
KV99105300
Air bag module bracket
NT354
Anchoring air bag module
HT61961000 and
HT62152000 combined
*Special torx bit
NT361
Use for special bolts [TAMPER RESIS-
TANT TORX (Size T50)]
a: 3.5 (0.138) dia.
b: 8.5 - 8.6 (0.335 - 0.339) dia.
c: approx. 10 (0.39) sq.
Unit: mm (in)
KV99108300
Deployment tool adapter for front
passenger air bag
Deployment tool adapter for front
side air bag (For Hatchback)
NT823
KV99108200
Deployment tool adapter for front
seat belt pre-tensioner
NT796
KV99109000
Deployment tool adapters for
front side air bag (For 4-door
Sedan)
NT797
*: Special tool or commercial equivalent
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Preparation
RS-21

COMMERCIAL SERVICE TOOLNJRS0040
Tool name Description
Tamper resistant torx
socket
NT757
Size: T30
SRS ConfigurationNJRS0010
SRS585-D
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ªONº or ªSTARTº
position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal
collision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows;
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag modulejÐÐ
Front passenger air bag modulejÐÐ
Front LH seat belt pre-tensionerjÐÐ
Front RH seat belt pre-tensionerjÐÐ
Front LH side air bag module ÐjÐ
Front RH side air bag module Ð Ðj
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Preparation (Cont'd)
RS-22

SRS444
Seat Belt Pre-tensioner with Load Limiter=NJRS0034The seat belt pre-tensioner system with load limiter is installed to
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a fron-
tal collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified
level occurs, seat belt slack resulting from clothing or other factors
is immediately taken up by the pre-tensioner. Vehicle passengers
are securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat
belt web tension while maintaining force.
NRS135
Built-in Type Side Air BagNJRS0035Front side air bag is built-in type.
The front seat backs with built-in type front side air bag have the
labels shown in figure at left.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Seat Belt Pre-tensioner with Load Limiter
RS-23

SRS Component Parts LocationNJRS0011
SRS817-A
SRS862
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS Component Parts Location
RS-24

SRS797-A
Maintenance ItemsNJRS0012CAUTION:
Do not use electrical test equipment to check SRS circuit.
1. Check operation of ªAIR BAGº warning lamp.
After turning ignition key to ªONº position, ªAIR BAGº warning
lamp illuminates. The ªAIR BAGº warning lamp will go off after
about 7 seconds if no malfunction is detected. If any of the fol-
lowing ªAIR BAGº warning lamp conditions occur, immediately
check the air bag system. Refer to RS-49 for details.
+The ªAIR BAGº warning lamp does not illuminate when the
ignition switch is turned ªONº.
+The ªAIR BAGº warning lamp does not go off about 7 seconds
after the ignition switch is turned ªONº.
+The ªAIR BAGº warning lamp blinks after about 7 seconds after
the ignition switch is turned ªONº.
2. Visually check SRS components.
1) Diagnosis sensor unit
+Check diagnosis sensor unit and bracket for dents, cracks and
deformities.
+Check connectors for damage, and terminals for deformities.
2) Air bag module and steering wheel
+Remove air bag module from steering wheel, instrument panel
or seatback. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
+Install driver air bag module to steering wheel to check fit or
alignment with the wheel.
+Check steering wheel for excessive free play.
+Install front passenger air bag module to instrument panel to
check fit or alignment with the instrument panel.
+Install front side air bag module to seatback to check fit and
alignment with the seat.
3) Spiral cable
+Check spiral cable for dents, cracks, or deformities.
+Check connectors and protective tape for damage.
+Check steering wheel for noise, binding or heavy operation.
4) Main harness, body harness, side air bag module sub-harness
+Check connectors for poor connections, damage, and termi-
nals for deformities.
+Check harnesses for binding, chafing or cut.
5) Front seat belt pre-tensioner
+Check harness cover and connectors for damage, terminals
for deformities, and harness for binding.
+Check belts for damage and anchors for loose mounting.
+Check retractor for smooth operation.
+Perform self-diagnosis for seat belt pre-tensioner using ªAIR
BAGº warning lamp or CONSULT-II.
Refer to ªSRS Operation Checkº for details. (RS-49)
6) Side air bag (satellite) sensor
+Check side air bag (satellite) sensor (including bracket portion)
for dents, cracks or deformities.
+Check connectors for damage, and terminals for deformities.
CAUTION:
Replace previously used special bolts, hex bolts and ground
bolt with new ones.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Maintenance Items
RS-25

Diagnosis Sensor Unit
REMOVAL AND INSTALLATIONNJRS0013CAUTION:
+Before servicing SRS, turn the ignition switch off, discon-
nect both battery cables and wait at least 3 minutes.
+The special bolts are coated with bonding agent while the
other bolt is for ground. Do not use old bolts after
removal; replace with new ones.
+Check diagnosis sensor unit for proper installation.
+Check diagnosis sensor unit to ensure it is free of
deformities, dents, cracks or rust. If they show any visible
signs of damage, replace them with new ones.
+Check diagnosis sensor unit brackets to ensure they are
free of deformities or rust.
+Replace diagnosis sensor unit if it has been dropped or
sustained an impact.
+After replacement of diagnosis sensor unit, perform self-
diagnosis for SRS. Refer to ªSRS Operation Checkº for
details. (RS-49)
SRS964
1. Disconnect driver, front passenger and front side air bag mod-
ule connectors. Also, disconnect front seat belt pre-tensioner
connector.
2. Remove console box. Refer to BT-25, ªINSTRUMENT PANEL
ASSEMBLYº.
3. Disconnect diagnosis sensor unit connector.
4. Remove ground bolt and diagnosis sensor unit fixing bolts.
Use TAMPER RESISTANT TORX (Size T50) to remove spe-
cial bolts.
NOTE:
+To install, reverse the removal procedure sequence.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Diagnosis Sensor Unit
RS-26

SRS563-D
SRS863
Front Seat Belt Pre-tensioner
REMOVAL AND INSTALLATIONNJRS0036CAUTION:
+Before servicing SRS, turn the ignition switch off, discon-
nect both battery cables and wait at least 3 minutes.
+Check front seat front belt pre-tensioner with load limiter
for proper installation.
+After replacement of front seat belt pre-tensioner, check
SRS function and perform self-diagnosis for SRS.
Refer to ªSRS Operation Checkº for details. (RS-49)
+Do not attempt to disassemble front seat belt pre-ten-
sioner with load limiter.
+Replace front seat belt pre-tensioner if it has been
dropped or sustained an impact.
+Do not expose front seat belt pre-tensioner to tempera-
tures exceeding 80ÉC (176ÉF).
For removal of front seat belt pre-tensioner, refer to ªFront Seat
Beltº for details. (RS-5)
NOTE:
+To install, reverse the removal procedure sequence.
Side Air Bag (Satellite) Sensor
REMOVAL AND INSTALLATIONNJRS0014CAUTION:
+Before servicing SRS, turn the ignition switch off, discon-
nect both battery cables and wait at least 3 minutes.
+Do not use old bolts coated with bonding agent after
removal; replace with new ones.
+Check side air bag (satellite) sensor for proper installa-
tion.
+Check side air bag (satellite) sensor to ensure they are
free of deformities, dents, cracks or rust. If it shows any
visible signs of damage, replace it with new one.
+After replacement of side air bag (satellite) sensor, check
SRS function and perform self-diagnosis for SRS. Refer to
ªSRS Operation Checkº for details. (RS-49)
+Do not attempt to disassemble side air bag (satellite) sen-
sor.
+Replace side air bag (satellite) sensor if it has been
dropped or sustained an impact.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Front Seat Belt Pre-tensioner
RS-27

SRS965
1. Remove front seat belt pre-tensioner. Refer to ªFront Seat Beltº
for details. (RS-5)
2. Disconnect side air bag (satellite) sensor connector.
3. Remove bolt and nuts from side air bag (satellite) sensor unit.
Then remove the (satellite) sensor.
NOTE:
+To install, reverse the removal procedure sequence.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Side Air Bag (Satellite) Sensor (Cont'd)
RS-28

Driver Air Bag Module and Spiral Cable
REMOVAL AND INSTALLATION/WITH 4-SPOKE STEERING WHEELNJRS0015
SRS865
SRS566
REMOVALNJRS0016CAUTION:
+Before servicing SRS, turn the ignition switch off, discon-
nect both battery cables and wait at least 3 minutes.
+Always work from the side of driver air bag module.
1. Remove lower lid from steering wheel, and disconnect driver
air bag module connector.
SBF812E
2. Remove side lids and audio steering switch. Using the
TAMPER RESISTANT TORX (Size T30), remove left and right
special bolts. Driver air bag module can then be removed.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Driver Air Bag Module and Spiral Cable
RS-29

SRS443
CAUTION:
+Always place driver air bag module with pad side facing
upward.
+Do not attempt to disassemble driver air bag module.
+The special bolts are coated with bonding agent. Do not
use old bolts after removal; replace with new ones.
+Do not insert any foreign objects (screwdriver, etc.) into
driver air bag module connector.
SBF814E
+Replace driver air bag module if it has been dropped or
sustained an impact.
+Do not expose the driver air bag module to temperatures
exceeding 90ÉC (194ÉF).
+Do not allow oil, grease or water to come in contact with
the driver air bag module.
SBF239F
3. Set steering wheel in the neutral position.
4. Disconnect horn/audio connector and remove nut.
5. Using steering wheel puller, remove steering wheel. Be care-
ful not to over-tighten puller bolt on steering wheel.
CAUTION:
+Do not tap or bump the steering wheel.
6. Remove steering column cover.
SRS384
7. Remove four spiral cable securing screws, and extract spiral
cable forward. Unlock spiral cable connector, then remove spi-
ral cable.
CAUTION:
+Do not attempt to disassemble spiral cable.
+Do not apply lubricant to the spiral cable.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Driver Air Bag Module and Spiral Cable (Cont'd)
RS-30