belt NISSAN PATROL 1998 Y61 / 5.G Restraint System User Guide

Maintenance Items
CAUTION:
Do not use a circuit tester to check SRS circuit.
1. Check operation of ``AIR BAG'' warning lamp.
After turning ignition key to ``ON'' position, both warning lamps
illuminate. The ``AIR BAG'' warning lamp will go off after about
7 seconds if no malfunction is detected.
If any of the following warning lamp conditions occur, immedi-
ately check the air bag or seat belt pre-tensioner system. Refer
to RS-30 for details.
+The ``AIR BAG'' warning lamp does not illuminate when the
ignition switch is turned ``ON''.
+The ``AIR BAG'' warning lamp does not go off about 7 seconds
after the ignition switch is turned ``ON''.
+The ``AIR BAG'' warning lamp blinks about 7 seconds after the
ignition switch is turned ``ON''.
2. Visually check SRS components.
(1) Diagnosis sensor unit
+Check diagnosis sensor unit and bracket for dents, cracks or
deformities.
+Check connectors for damage, and terminals for deformities.
(2) Air bag module and steering wheel
+Remove air bag module from steering wheel or instrument
panel. Check harness cover and connectors for damage, ter-
minals for deformities, and harness for binding.
+Install driver air bag module to steering wheel to check ®t or
alignment with the wheel.
+Check steering wheel for excessive free play.
+For dual air bag system, install passenger air bag module to
instrument panel to check ®t or alignment with the instrument
panel.
(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) Harness related to SRS
+Check connectors for poor connections, damage, and terminals
for deformities.
+Check harnesses for binding, cha®ng or cut.
(5) 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
bulb or CONSULT. Refer to ``SRS Operation Check'' for details.
(RS-30)
CAUTION:
Replace previously used special bolts, ground bolt and anchor
bolt with new ones.
SRS451
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-11

Removal and Installation Ð Diagnosis Sensor
Unit and Seat Belt Pre-tensioner
CAUTION:
+Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait for 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 and seat belt pre-tensioner for proper installation.
+Check diagnosis sensor unit to ensure they are 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 and seat belt pre-tensioner if they have been dropped or sustained
an impact.
+After replacement of diagnosis sensor unit and seat belt pre-tensioner, check SRS function and
perform self-diagnosis for SRS. Refer to ``SRS Operation Check'' for details (RS-30).
+Do not attempt to disassemble diagnosis sensor unit and seat belt pre-tensioner.
+Do not expose seat belt pre-tensioner to temperatures exceeding 80ÉC (176ÉF).
REMOVAL OF DIAGNOSIS SENSOR UNIT
1. Disconnect driver and passenger air bag module connectors.
Also, disconnect seat belt pre-tensioner connector.
2. Remove console ®nisher, console box assembly and instru-
ment panel stay cover. Refer to ``INSTRUMENT PANEL'' in BT
section.
3. Remove rear heater duct and foot duct. (If equipped with rear
heater duct and foot duct.)
4. Remove bolt and also remove special bolts using the TAMPER
RESISTANT TORX (Size T50), from diagnosis sensor unit.
5. Disconnect diagnosis sensor unit connector. Then remove the
diagnosis sensor unit.
NOTE:
+To install, reverse the removal procedure sequence.
REMOVAL OF SEAT BELT PRE-TENSIONER
For removal of seat belt pre-tensioner, refer to ``Front Seat Belt'' for
details. (RS-3)
NOTE:
+To install, reverse the removal procedure sequence.
SRS453
SRS454
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-12

4. Install glove box assembly. (Glove box lid is open.)
5. Close the glove box lid.
Disposal of Air Bag Module and Seat Belt Pre-
tensioner
+Before disposing of air bag module and seat belt pre-tensioner, or vehicles equipped with such systems,
deploy the systems. If such systems have already been deployed due to an accident, dispose of as indi-
cated in ``DISPOSING OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER'' (RS-21).
+When deploying the air bag module, always use the Special Service Tool; Deployment tool KV99106400,
KV99108200 and KV99108300.
+When deploying the air bag module and seat belt pre-tensioner, stand at least 5 m (16 ft) away from the
deployment component.
+When deploying air bag module and seat belt pre-tensioner, a fairly loud noise is made, followed by smoke
being released. The smoke is not poisonous, however, be careful not to inhale smoke since it irritates throat
and can cause choking.
+Always activate one air bag module at a time.
+Due to heat, leave air bag module unattended for more than 30 minutes after deployment. Also leave seat
belt pre-tensioner unattended for more than 10 minutes after deployment.
+Be sure to wear gloves when handling a deployed air bag module.
+Never apply water to a deployed air bag module.
+Wash your hands clean after ®nishing work.
+Do not dispose of the air bag module un-deployed.
+Place the vehicle outdoors with an open space of at least 6 m (20 ft) on all sides when deploying the air
bag module while mounted in vehicle.
+Use a voltmeter to make sure the vehicle battery is fully charged.
CHECKING DEPLOYMENT TOOL
Connecting to battery
CAUTION:
The battery must show voltage of 9.6V or more.
Remove the battery from the vehicle and place it on dry wood
blocks approximately 5 m (16 ft) away from the vehicle.
+Wait 3 minutes after the vehicle battery is disconnected before
proceeding.
+Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
Make sure the polarity is correct. The right side lamp in the
tool, marked ``deployment tool power'', should glow with a
green light. If the right side lamp glows red, reverse the con-
nections to the battery.
SRS456
SRS005-B
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Installation Ð Front Passenger Air Bag Module
(Cont'd)
RS-17

Deployment tool check
Press the deployment tool switch to the ``ON'' position. The left side
lamp in the tool, marked ``air bag connector voltage'' should illumi-
nate. If it does not illuminate, replace the tool.
Air bag deployment tool lamp illumination chart
(Battery connected)
Switch operationLeft side lamp, green*
``AIR BAG CONNECTOR
VOLTAGE''Right side lamp, green*
``DEPLOYMENT TOOL
POWER''
OFF OFF ON
ON ON ON
*: If this lamp glows red, the tool is connected to the battery incorrectly.
Reverse the connections and make sure the lamp glows green.
DEPLOYMENT PROCEDURES FOR AIR BAG MODULE
(OUTSIDE OF VEHICLE)
Unless the vehicle is being scrapped, deploying the air bag in the
vehicle is not recommended. This may cause damage to the
vehicle interior.
Anchor air bag module in a vise secured to a ®rm foundation dur-
ing deployment.
Deployment of driver's air bag module (outside of
vehicle)
1. Using wire, secure air bag module to air bag module bracket
(SST: KV99105300).
CAUTION:
Use wire of at least 1 mm (0.04 in) diameter.
2. Firmly secure air bag module bracket (SST: KV99105300) with
air bag module attached, in a vise.
3. Connect deployment tool (SST: KV99106400) to air bag mod-
ule connector.
SBF266H
SRS232-B
SRS233-B
SRS234-B
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-
tensioner (Cont'd)
RS-18

4. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
5. The lamp on the right side of the tool, marked ``deployment tool
power'', should glow green, not red.
6. Press the button on the deployment tool. The left side lamp on
the tool, marked ``air bag connector voltage'', will illuminate and
the air bag module will deploy.
CAUTION:
When deploying the air bag module, stand at least 5 m (16 ft)
away from the air bag module.
Deployment of passenger air bag module (outside of
vehicle)
1. Make an 8.5 mm (0.335 in) diameter hole in air bag module
bracket (SST: KV99105300) at the position shown in ®gure at
left.
2. Firmly secure air bag module bracket (SST: KV99105300) in a
vise.
3. Match the two holes in air bag module bracket (held in vise) and
passenger air bag module and ®x them with two bolts [M8 x 25
- 30 mm (0.98 - 1.18 in)].
CAUTION:
If a gap exists between passenger air bag module and air bag
module bracket, use a piece of wood inserted in the gap to
stabilize the air bag module.
4. Connect deployment tool adapter (SST: KV99108300) to
deployment tool (SST: KV99106400) connector and connector
on either side of air bag module.
5. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
6. The lamp on the right side of the tool, marked ``deployment tool
power'', should glow green, not red.
7. Press the button on the deployment tool. The left side lamp on
the tool, marked ``air bag connector voltage'', will illuminate and
the air bag module will deploy.
SRS235-B
SRS236-B
SRS310
SRS311
SRS313-A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-
tensioner (Cont'd)
RS-19

CAUTION:
+When deploying the air bag module, do not stand on the
deploying side.
+Stand at least 5 m (16 ft) away from the air bag module.
Deployment of seat belt pre-tensioner (outside of
vehicle)
1. Firmly anchor seat belt pre-tensioner in a vise.
CAUTION:
Ensure bracket and webbing are placed in the vise.
2. Connect deployment tool adapter (SST: KV999R0020) to
deployment tool (SST: KV99106400) connector and seat belt
pre-tensioner connector.
3. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
4. The lamp on the right side of the tool, marked ``deployment tool
power'', should glow green, not red.
5. Press the button on the deployment tool. The left side lamp on
the tool, marked ``seat belt pre-tensioner connector voltage'',
will illuminate and the seat belt pre-tensioner will deploy.
CAUTION:
When deploying the seat belt pre-tensioner, stand at least 5 m
(16 ft) away from the seat belt pre-tensioner.
SRS020-A
SRS240
SRS241-D
SRS242-B
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-
tensioner (Cont'd)
RS-20

DEPLOYMENT OF AIR BAG MODULE AND SEAT BELT
PRE-TENSIONER WHILE MOUNTED IN VEHICLE
When disposing of a vehicle, deploy air bag modules and seat belt
pre-tensioners while they are mounted in vehicle.
CAUTION:
When deploying air bag module or seat belt pre-tensioner,
ensure vehicle is empty.
1. Disconnect both the vehicle battery cables and wait 3 minutes.
2. Disconnect air bag modules and seat belt pre-tensioners con-
nector.
3. Connect deployment tool (SST: KV99106400) to air bag mod-
ule or seat belt pre-tensioner.
For front passenger air bag module and seat belt pre-tensioner,
attach deployment tool adapter (SST: KV99108300 and
KV999R0020) to the tool connector.
4. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
5. The lamp on the right side of the tool, marked ``deployment tool
power'', should glow green, not red.
6. Press the button on the deployment tool. The left side lamp on
the tool, marked ``air bag connector voltage'', will illuminate and
the air bag module or seat belt pre-tensioner will deploy.
CAUTION:
Activate only one passenger air bag module or seat belt pre-
tensioner at a time.
DISPOSING OF AIR BAG MODULE AND SEAT BELT
PRE-TENSIONER
Deployed air bag modules and seat belt pre-tensioners are very
hot. Before disposing of air bag module, and seat belt pre-
tensioner, wait at least 30 minutes, and 10 minutes, respectively.
Seal them in a plastic bag before disposal.
CAUTION:
+Never apply water to a deployed air bag module and seat
belt pre-tensioner.
+Be sure to wear gloves when handling a deployed air bag
module and seat belt pre-tensioner.
+No poisonous gas is produced upon air bag module
deployment. However, be careful not to inhale gas since it
irritates throat and can cause choking.
+Do not attempt to disassemble air bag module and seat
belt pre-tensioner.
+Air bag module and seat belt pre-tensioner cannot be re-
used.
+Wash your hands clean after ®nishing work.
SRS006-D
SBF276H
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-
tensioner (Cont'd)
RS-21

Trouble Diagnoses Introduction
CAUTION:
+Do not use a circuit tester to check SRS harness connectors unless instructed to in this Service
Manual. SRS wiring harnesses except for ``SEAT BELT PRE-TENSIONER'' can be identi®ed with
yellow harness protector or yellow insulation tape before the harness connectors.
+Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,
replace it with a new one.
+Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using ``AIR BAG'' warning lamp and/or CONSULT.
System Using CONSULT Using warning lamp
Seat belt pre-tensioner X Ð
Air bag Driver air bag X X
Front passenger air bag X X
The reading of these results is accomplished using one of two modes Ð ``User mode'' and ``Diagnosis mode''.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system
malfunction through the operation of the ``AIR BAG'' warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the ``AIR BAG'' warning lamp and CONSULT are as follows:
User mode Diagnosis mode Display type
``AIR BAG'' warning lamp X X ON-OFF operation
CONSULT Ð X Monitoring
DIAGNOSIS MODE FOR CONSULT
+``SELF-DIAG [CURRENT]''
A current Self-diagnosis result (also indicated by the warning lamp ¯ashes in the Diagnosis mode) is dis-
played on the CONSULT screen in real time. This refers to a malfunctioning part requiring repairs.
+``SELF-DIAG [PAST]''
Diagnosis results previously stored in the memory are displayed on the CONSULT screen. The stored
results are not erased until memory erasing is executed.
+``TROUBLE DIAG RECORD''
With ``TROUBLE DIAG RECORD'', diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT screen.
+``ECU DISCRIMINATED NO.''
The diagnosis sensor unit for each vehicle model is assigned
with its own, individual classi®cation number. This number will
be displayed on the CONSULT screen, as shown at left. When
replacing the diagnosis sensor unit, refer to the part number for
the compatibility. After installation, replacement with a correct
unit can be checked by con®rming this classi®cation number on
the CONSULT screen.
For NISSAN MODEL Y61, the diagnosis sensor unit classi®ca-
tion numbers assigned are C2 (Hardtop models) and 27 (Mod-
els except Hardtop).
SRS504
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-22

WORK FLOW
ACTION ITEMREFERENCE ITEM
Check in
Listen to customer complaints and requests.
Perform preliminary check.bPreliminary check (RS-24)
Check for any Service Bulletin.
Check air bag system operation by using ``AIR BAG'' warning lamp.
Ð User mode
Check seat belt pre-tensioner system operation by using a bulb.bSRS Operation Check
DIAGNOSTIC PROCEDURE 1
(RS-30)
cInspect malfunctioning part. Ð Diagnosis mode
Perform self-diagnosis using CONSULT.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Perform self-diagnosis using ``AIR BAG'' warning lamp.bDIAGNOSTIC PROCEDURE 2:
Using CONSULT (RS-32)
DIAGNOSTIC PROCEDURE 6:
Using ``AIR BAG'' warning lamp
(RS-39)
Repair/Replace
NGFinal check Ð Diagnosis mode and User mode
CONSULT can only show one seat belt pre-tensioner malfunction as
self-diagnosis result at a time. Check self-diagnosis result with CON-
SULT whether other malfunctions are detected after repairing one
seat belt pre-tensioner malfunction.
OK
bDIAGNOSTIC PROCEDURE 3:
Using CONSULT (RS-34)
DIAGNOSTIC PROCEDURE 7:
Using ``AIR BAG'' warning lamp
(RS-40)
Check out
.
.
.
.
.
.
.
.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
How to Perform Trouble Diagnoses for Quick
and Accurate Repair (Cont'd)
RS-25

Checking seat belt pre-tensioner system operation
Check seat belt pre-tensioner system operation using a bulb as
follows:
1. Connect a bulb of less than 3.4W between data link connector
terminals
V7andV11.
2. After turning ignition switch from ``OFF'' to ``ON'', the bulb oper-
ates.
3. Compare the bulb operation to the chart below.
Lighting condition of the bulb SRS condition Reference item
MRS095A
No malfunction is
detected.
No further action is neces-
sary.
Ð
MRS096A
+Seat belt pre-tensioner
circuit is opened, or
+Seat belt pre-tensioner
power supply or ground
circuit is shorted.+If CONSULT is
available, go to DIAG-
NOSTIC PROCEDURE
2 (RS-32).
+If CONSULT is not
available, repair the sys-
tem as follows.*
1. Visually check the wir-
ing harness connec-
tions.
2. Replace the harness if it
has visible damage.
3. Replace driver's and
front passenger seat
belt assemblies.
(Before disposing, they
must be deactivated.)
4. Replace diagnosis sen-
sor unit.
MRS097A
Seat belt pre-tensioner
(and air bag) is deployed.Go to COLLISION DIAG-
NOSIS (RS-45).
* Follow the procedures in numerical order when repairing malfunctioning parts. Con®rm whether malfunction is eliminated
using a bulb or CONSULT each time repair is ®nished. If malfunction is still observed, proceed to the next step. When mal-
function is eliminated, further repair work is not required.
MRS054AB
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
SRS Operation Check (Cont'd)
RS-31