Lexus RX300 (MCU15). Service manual - part 538

RS0KJ–03

H05131

RS–62

–

SUPPLEMENTAL RESTRAINT SYSTEM

SIDE AIRBAG SENSOR ASSEMBLY

LEXUS RX300   (RM785E)

REMOVAL

NOTICE:

S

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

S

Do not open the cover or the case of the ECU and vari-
ous electrical devices unless absolutely necessary.
(If the IC terminals are touched, the IC may be de-
stroyed by static electricity.)

HINT:
For step 1 to 3, refer to page BO–145.
1.

REMOVE FRONT DOOR SCUFF PLATE

2.

REMOVE REAR DOOR SCUFF PLATE

3.

REMOVE CENTER PILLAR LOWER GARNISH

4.

REMOVE RETRACTOR OF FRONT SEAT OUTER
BELT (See page BO–189)

5.

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 3 screws and side airbag
sensor assembly.
Torx wrench: T40 (Part No. 09042–00020 or locally
manufactured tool)

RS0KK–03

–

SUPPLEMENTAL RESTRAINT SYSTEM

SIDE AIRBAG SENSOR ASSEMBLY

RS–63

LEXUS RX300   (RM785E)

INSPECTION

1.

Vehicle not involved in collision:
INSPECT SUPPLEMENTAL RESTRAINT SYSTEM

Do a diagnostic system check (See page DI–305).
2.

Vehicle involved in collision and airbag is not deployed:
INSPECT SUPPLEMENTAL RESTRAINT SYSTEM

Do a diagnostic system check (See page DI–305).
3.

Vehicle involved in collision and airbag is deployed:
INSPECT SUPPLEMENTAL RESTRAINT SYSTEM

Replace the side airbag sensor assembly (See page DI–305).

RS0KL–01

RS–64

–

SUPPLEMENTAL RESTRAINT SYSTEM

SIDE AIRBAG SENSOR ASSEMBLY

LEXUS RX300   (RM785E)

REPLACEMENT

REPLACEMENT REQUIREMENTS
In the following cases, replace the side airbag sensor assembly.

S

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

S

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

S

If the side airbag sensor assembly has been dropped.

CAUTION:
For removal and installation of the side airbag sensor assembly, see page RS–62 and RS–65. Be sure
to follow the correct procedure.

RS0KM–03

H05131

–

SUPPLEMENTAL RESTRAINT SYSTEM

SIDE AIRBAG SENSOR ASSEMBLY

RS–65

LEXUS RX300   (RM785E)

INSTALLATION

NOTICE:

S

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

S

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

S

Never repair a sensor in order to reuse it.

HINT:
For step 3 to 5, refer to page BO–150.

1.

INSTALL SIDE AIRBAG SENSOR

(a)

Using a torx wrench, install the side airbag assembly with
3 screws.
Torx wrench: T40 (Part No. 09042–00020 or locally
manufactured tool)
Torque: 21 N·m (210 kgf·cm, 15 ft·lbf)

(b)

Connect the connector.

NOTICE:

S

Connection of the connector is done after the sensor
assembly has been installed.

S

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

S

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.

S

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

S

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

2.

INSTALL RETRACTOR OF FRONT SEAT OUTER BELT
(See page BO–197)

3.

INSTALL CENTER PILLAR OUTER BELT

4.

INSTALL REAR DOOR SCUFF PLATE

5.

INSTALL FRONT DOOR SCUFF PLATE