
Precautions for SRS ªAIR BAGº and ªSEAT
BELT PRE-TENSIONERº Service
+Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
+Before servicing the SRS, turn ignition switch ªOFFº, disconnect battery ground cable and wait at least 3
minutes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have
passed.
+Diagnosis sensor unit must always be installed with their arrow marks ª
Sº pointing towards the front of
the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before
installation and replace as required.
+The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt
to turn steering wheel or column after removal of steering gear.
+Handle air bag module carefully. Always place driver and passenger air bag modules with the pad side
facing upward.
+Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
+After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Special Service Tools
Tool number
Tool nameDescription
KV99106400
Deployment tool
NT357
Disposing of air bag module
KV99105300
Air bag module bracket
NT354
Anchoring air bag module
KV99108200
Deployment tool adapters for
seat belt pre-tensioner
NT721
KV99108300
Deployment tool adapters for
passenger air bag
NT776
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-3003

CAUTION:
+Always place air bag module with pad side facing
upward.
+Do not attempt to disassemble air bag module.
+Do not use old bolts after removal; replace with new
ones.
+Do not insert any foreign objects (screwdriver, etc.) into
air bag module connector.
+Replace air bag module if it has been dropped or sus-
tained an impact.
+Do not expose the air bag module to temperatures
exceeding 90ÉC (194ÉF).
+Do not allow oil, grease or water to come in contact with
the air bag module.
3. Set steering wheel in the neutral position.
4. Disconnect horn connector and remove nuts.
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.
7. Remove the four screws. Then unlock the spiral cable con-
nector and disconnect connector. The spiral cable can then
be removed.
CAUTION:
+Do not attempt to disassemble spiral cable.
+Do not apply lubricant to the spiral cable.
Installation Ð Driver Air Bag Module and
Spiral Cable
1. Set the front wheels in the straight-ahead position.
2. Connect spiral cable connector. Then, lock the connector
and tighten with screws. Install steering column cover.
SRS443
SBF814E
SBF239F
SRS384
SRS384
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Removal Ð Driver Air Bag Module and
Spiral Cable (Cont'd)
RS-3007

3. Make sure that the spiral cable is in the neutral position.
The neutral position is detected by turning left about 2.5
revolutions from the right end position. Align the two marks
(
,
m).
CAUTION:
+The spiral cable may snap due to steering operation if
the cable is installed in an improper position.
Also, with the steering linkage disconnected, the cable
may snap by turning the steering wheel beyond the lim-
ited number of turns.
The spiral cable can be turned up to about 2.5 turns from
the neutral position to both the right and left.
4. Connect spiral cable connector and tighten with screws.
Install steering column cover.
5. Install steering, wheel setting spiral cable pin guide, and pull
spiral cable through.
6. Connect horn connector and engage spiral cable with pawls
in steering wheel. Move air bag module connector away from
steering wheel lower lid opening.
7. Tighten nut.
:29-39Nzm (3.0 - 4.0 kg-m, 22 - 29 ft-lb)
8. Fix driver air bag module harness and harness connector to
clamp.
9. Connect air bag module connector and horn connector.
10. Position air bag module and tighten with new special bolts.
+Always service the air bag module from the side.
11. Install all lids.
12. Perform self-diagnosis to ensure entire SRS operates prop-
erly. (Use CONSULT-II or warning lamp check.) Refer to
RS-3020.
Before performing self-diagnosis, connect both battery
cables.
13. Turn steering wheel to the left end and then to the right end
fully to make sure that spiral cable is set in the neutral posi-
tion.
SRS165
SRS166
SHIA0144E
PHIA0017E
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Installation Ð Driver Air Bag Module and
Spiral Cable (Cont'd)
RS-3008

Installation Ð Front Passenger Air Bag
Module
+Always work from the side of or under air bag module.
1. Install front passenger air bag module to instrument panel
assembly.
2. Install air duct to instrument panel.
3. Install instrument panel.
+Ensure harness is not caught between rear of air bag mod-
ule and steering member.
4. Install front passenger air bag module to steering member.
5. Connect air bag module connector.
6. Install glove box assembly.
SRS992
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-3010

FOR FRONTAL COLLISION
To repair the SRS for a frontal collision, perform the following steps.
When SRS (except the side air bag) is activated in a collision:
V1Replace the diagnosis sensor unit.
V2Remove the air bag modules (except the side air bag module).
V3Check the SRS components using the table shown below:
+Replace any SRS components showing visible signs of damage (dents, cracks, deformation).
V4Install new air bag modules (except the side air bag module).
V5Conduct self-diagnosis using CONSULT-II, and ªAIR BAGº. Refer to ªSelf-diagnosisº for details (RS-
3020). Ensure entire SRS operates properly.
When SRS is not activated in a collision:
V1Check the SRS components using the table shown below:
+Replace any SRS components showing visible signs of damage (dents, cracks, deformation).
V2Conduct self-diagnosis using CONSULT-II, and ªAIR BAGº. Refer to ªSelf-diagnosisº for details (RS-
3020). Ensure entire SRS operates properly.
SRS inspection
Part SRS (except the
side air bag) is acti-
vatedSRS is NOT activated
Air bag module
(driver and passen-
ger side)REPLACE
Install air bag mod-
ule with new bolts.1. Remove air bag module. Check harness cover and connectors for damage, ter-
minals for deformities, and harness for binding.
2-1. Install driver air bag module into the steering wheel to check fit and alignment
with the wheel.
2-2. Install passenger air bag module into the instrument panel to check fit with the
instrument panel.
3. No damage found, reinstall with new bolts.
4. If damagedÐREPLACE. Air bag must be deployed before discarding.
Seat belt pre-ten-
sioner assemblyREPLACE
Install seat belt pre-
tensioner with new
bolts.1. Remove seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities, and
harness for binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. If no damage is found, reinstall with new bolts coated with bonding agent.
5. If damagedÐREPLACE. Install the seat belt pre-tensioners with new bolts coated
with bonding agent. Seat belt pre-tensioners must be deployed before discarding.
Diagnosis sensor
unitREPLACE
Install diagnosis sen-
sor unit with new
bolts.1. Check case and bracket for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new bolts.
4. If damagedÐREPLACE. Install diagnosis sensor unit with new bolts.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities.
3. Install air bag module to check fit or alignment with steering wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall the steering wheel.
6. If damagedÐREPLACE.
Spiral cable 1. Visually check spiral cable and combination switch for damage.
2. Check connectors, flat cable and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall the spiral cable.
5. If damagedÐREPLACE.
Harness and Con-
nectors1. Check connectors for poor connection, damage, and terminals for deformities.
2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall harness and connectors.
4. DamagedÐREPLACE damaged section of harness. Do not attempt to repair, splice or modify any SRS
harness.
Instrument panel 1. Check instrument panel for bending, deformities, or cracks.
2. Check passenger side module brackets for dents, cracks or deformities.
3. If no damage is found, reinstall with new bolts.
4. If damagedÐREPLACE.
COLLISION DIAGNOSIS
RS-3037

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 in a frontal
collision. The SRS system composition which is available to NISSAN MODEL D22 is as follows (The com-
position varies according to the destination and optional equipment.):
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 inflation, all maintenance must 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. 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. SRS wiring harnesses can be identified by yellow harness connector.
PRECAUTIONS
EL-3004

Service Data and Specifications (SDS)
ALTERNATOR
TypeA5TA5271 A7TA8471 A5TA5372 A3TB0699 LR160-745 LR160-728E
MITSUBISHI HITACHI
Applied model KA24DEZ24
YD25 ZD30 TD27, QD32
Standard Option*
Nominal rating V-A 12-70 12-35 12-70 12-90 12-60
Ground polarityNegative
Minimum revolution under no-
load
(When 13.5V is applied) rpmLess than 1,300 Less than 1,000
Hot output current
(When 13.5V is applied) A/rpmMore than
14/1,300
More than
54/2,500More than
27/2,500More than
18/1,300
More than
51/2,500More than
29/1,300
More than
76/2,500
More than
88/5,000More than
17/1,300
More than
48/2,500
More than
57/5,000
Regulated output voltage V 14.1 - 14.7
Minimum length of brush
mm (in)5.0 (0.20) 6.0 (0.236)
Brush spring pressure
N (g, oz)4.8 - 6.0 (487 - 612, 17.25 - 21.59) 1.0 - 3.43 (102 - 350, 3.60 - 12.34)
Slip ring minimum outer diameter
mm (in)22.1 (0.870) 26.0 (1.024)
Rotor (Field coil) resistanceW2.5 - 2.9 2.7 - 3.2 2.5 - 2.9 2.1 - 2.5 2.6 2.58
*: Models with power steering and air conditioner
CHARGING SYSTEM
EL-3022

Code Section Wiring Diagram Name
PNP/SW EC Park/Neutral Position Switch
POWER EL Power Supply Routing
PRWIRE EL Theft Warning System Pre-wire
PST/SW EC Power Steering Oil Pressure Switch
R/FOG EL Rear Fog Lamp
ROOM/L EL Interior Room Lamp
SHIFT AT Shift Lock System
SSV/A AT Shift Solenoid Valve A
SSV/B AT Shift Solenoid Valve B
SRS RS Supplemental Restraint System
S/SIG EC Start Signal
START EL Starting System
STOP/L EL Stop Lamp
SWL/V ECSwirl Control Valve Control Solenoid
ValveCode Section Wiring Diagram Name
TAIL/L EL Parking, License and Tail Lamps
TCV ATTorque Converter Clutch Solenoid
Valve
TPS EC, AT Throttle Position Sensor
TP/SW EC Throttle Position Sensor
TURN ELTurn Signal and Hazard Warning
Lamps
VSS EC Vehicle Speed Sensor
VSSA/T ATVehicle Speed Sensor A/T (Revolu-
tion Sensor)
VSSMTR AT Vehicle Speed Sensor Meter
WARN EL Warning Lamps
WINDOW EL Power Window
WIPER EL Front Wiper and Washer
WIRING DIAGRAM CODES (CELL CODES)
EL-3195