LEXUS GS400 2000 Service Repair Manual

RS07V±01
H02694
H02695
H02696
RS±58
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT AIRBAG SENSOR
2289 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
NOTICE:

If the wiring connector of the SRS is disconnected
with the ignition switch in ON or ACC position, DTCs
will be recorded.

Never use SRS parts from another vehicle. When re-
placing parts, replace them with new parts.

Never reuse the sensor involved in a collision when
the SRS has deployed.

Never repair a sensor in order to reuse it.
1. REMOVE LH FRONT AIRBAG SENSOR
(a) Remove the 2 bolts and J/B cover.
(b) Remove the bolt and 2 nuts.
(c) Disconnect the connectors and hose, then remove the
J/B box.
(d) Disconnect the connector, then remove the bolt, nut and
sensor.

H02698
H02702
H02699
H02697
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT AIRBAG SENSOR
RS±59
2290 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
2. REMOVE RH FRONT AIRBAG SENSOR
(a) Remove the bolt and No.1 air cleaner inlet.
(b) 2JZ±GE Engine:
Disconnect the connector and inlet hose, then remove the
3 bolts and air cleaner.
(c) 1UZ±FE Engine:
Disconnect the connector and inlet hose, then remove the
3 bolts and air cleaner.
(d) Disconnect the connector, then remove the bolt, nut and
sensor.

RS07W±01
H02700
H02701
LH
RH RS±60
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT AIRBAG SENSOR
2291 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. VEHICLES NOT INVOLVED IN COLLISION
Do a diagnostic system check. (See page DI±552)
2. VEHICLES INVOLVED IN COLLISION
(a) Do a diagnostic system check. (See page DI±552)
(b) If the front fender of the car or its periphery is damaged,
do a visual check for damage to the front airbag sensor,
which includes the following items even if the airbag was
not deployed:

Bracket deformation

Paint peeling off the bracket

Cracks, dents or chips in the case

Cracks, dents, chipping and scratches in the con-
nector

Peeling of the label or damage to the serial number

RS07X±01
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT AIRBAG SENSOR
RS±61
2292 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
REPLACEMENT REQUIREMENTS
In the following cases, replace the front airbag sensor.

If the SRS has been deployed in a collision. (Replace both the left and right airbag sensors.)

If the front airbag sensor has been found to be faulty in troubleshooting.

If the front airbag sensor has been found to be faulty during the check in item.
(See page RS±60)

If the front airbag sensor has been dropped.
CAUTION:
For removal and installation of the front airbag sensor, see page RS±58 and RS±62.
Be sure to follow the correct procedure.

RS07Y±01
H02696
H02697
RS±62
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT AIRBAG SENSOR
2293 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
1. INSTALL FRONT AIRBAG SENSOR
Install the sensor with bolt and nut, then connect the connector.
Torque: 7.8 N´m (80 kgf´cm, 69 in.´lbf)
NOTICE:

Make sure the sensor is installed to the specified
torque.

If the sensor has been dropped, or there are cracks,
dents or other defects in the case, brackets or con-
nector, replace the removed sensor. Always replace
the set bolt and nut with new ones.

The sensor set bolt and nut have been anti±rust
treated. When the sensor is removed, always replace
the set bolt and nut with new ones.

After installation, shake the sensor to check that
there is no looseness.

The front sensor is equipped with an electrical con-
nection check mechanism. Be sure to lock this mech-
anism securely when connecting the connector. If the
connector is not securely locked, a malfunction code
will be detected by the diagnostic system.
2. INSTALL REMOVED PARTS

RS07Z±01
H02617
Center Pillar Lower Garnish
Front Door Scuff Plate
Rear Door Scuff Plate
Side Airbag
Sensor Assembly
Front Seat
Outer Belt Retractor
41 (420, 30)
7.4 (75, 65 in.´lbf)
20 (200, 14)
: Specified torqueN´m (kgf´cm, ft´lbf)
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG SENSOR ASSEMBLY
RS±63
2294 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SIDE AIRBAG SENSOR ASSEMBLY
COMPONENTS

RS080±01
H02619
H02620
RS±64
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG SENSOR ASSEMBLY
2295 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
NOTICE:
Do not open the cover or the case of the ECU and various
computers unless absolutely necessary.
(If the IC terminals are touched, the IC may be destroyed by
static electricity.)
1. REMOVE THESE PARTS:
(a) Front door scuff plate
(b) Rear door scuff plate
(c) Center pillar lower garnish
2. REMOVE FRONT SEAT OUTER BELT RETRACTOR
(See page BO±124)
(a) w/ Seat Belt Pretensioner:
Disconnect the pretensioner connector.
(b) w/ Seat Belt Warning:
Disconnect the retractor switch connector.
(c) Remove the 2 bolts and retractor.
3. REMOVE SIDE AIRBAG SENSOR ASSEMBLY
(a) Disconnect the connector.
NOTICE:
Remove the connector with the sensor assembly installed.
(b) Using a torx wrench, remove the 4 screws and side airbag
sensor assembly.
Torx wrench: T40 (Part No.09042±00020 or locally
manufactured tool)

RS081±01
H02576
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG SENSOR ASSEMBLY
RS±65
2296 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. VEHICLES NOT INVOLVED IN COLLISION
Do a diagnostic system check.
(See page DI±552)
2. VEHICLE INVOLVED IN COLLISION AND AIRBAG IS
NOT DEPLOYED
Do a diagnostic system check.
(See page DI±552)
3. VEHICLE INVOLVED IN COLLISION AND AIRBAG IS
DEPLOYED
Replace the airbag sensor assembly.

RS082±01
RS±66
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG SENSOR ASSEMBLY
2297 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
REPLACEMENT REQUIREMENTS
In the following cases, replace the side airbag sensor assembly.

If the side airbag sensor assembly has been deployed in a collision.

If the side airbag sensor assembly has been found to be faulty in troubleshooting.

If the side airbag sensor assembly has been dropped.
CAUTION:
For removal and installation of the side airbag sensor assembly, see page RS±64 and RS±67.
Be sure to follow the correct procedure.

RS083±01
H02619
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG SENSOR ASSEMBLY
RS±67
2298 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
NOTICE:

Never use SRS parts from another vehicle. When re-
placing parts, replace them with new ones.

Never reuse the side airbag sensor assembly in-
volved in a collision when the airbag has deployed.

Never repair a sensor in order to reuse it.
1. INSTALL SIDE AIRBAG SENSOR
(a) Using a torx wrench, install the side airbag assembly with
4 screws.
Torx wrench: T40 (Part No.09042±00020 or locally
manufactured tool)
Torque: 20 N´m (200 kgf´cm, 14 ft´lbf)
(b) Connect the connector.
NOTICE:

Make sure the sensor assembly is installed to the
specified torque.

If the sensor assembly has been dropped, or there are
cracks, dents or other defects in the case, bracket or
connector, replace the sensor assembly with a new
one.

When installing the sensor assembly, take care that
the SRS wiring does not interfere with other parts and
is not pinched between other parts.

After installation, shake the sensor assembly to
check that there is no looseness.
2. INSTALL FRONT SEAT OUTER BELT RETRACTOR
(See page BO±132)
(a) Install the retractor with 2 bolts.
HINT:
After tightening the upper bolt, tighten the lower bolt.
Torque:
Upper bolt: 7.4 N´m (75 kgf´cm, 65 in.´lbf)
Lower bolt: 41 N´m (420 kgf´cm, 30 ft´lbf)
(b) w/ Seat Belt Warning:
Connect the retractor switch connector.
(c) w/ Seat Belt Pretensioner:
Connect the pretensioner connector.
3. INSTALL THESE PARTS:
(a) Center pillar lower garnish
(b) Rear door scuff plate
(c) Front door scuff plate