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RS01Y-54 - SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG RS-1 1917 Author: Date: 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION: S The LEXUS IS 300 is equipped with SRS, which comprises a driver airbag, front passenger air- bag, side airbag and curtain shield airbag. Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Further, if a mistake is made in servicing the SRS, it is possible that the SRS may fail to operate when required. Before performing servicing (including removal or installa- tion of parts, inspection or replacement), be sure to read the following items carefully, then fol- low the correct procedures described in the repair manual. S Work must be started 90 seconds after the ignition switch is turned to the ”LOCK” position and the negative (-) terminal cable is disconnected from the battery. (The SRS is equipped with a back-up power source so that if work is started within 90 seconds from disconnecting the negative (-) terminal cable of the battery, the SRS may be deployed.) S Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain shield airbag assembly, airbag sensor assembly, front airbag sensor or side and curtain shield airbag sensor assembly directly to hot air or flames. NOTICE: S Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most impor- tant source of information when troubleshooting. When troubleshooting the SRS, always in- spect the DTCs before disconnecting the battery. S Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbag assembly, side airbag assembly, airbag sensor assembly, front airbag sen- sor, curtain shield airbag assembly and side and curtain shield airbag sensor assembly should be inspected (See page RS-15 , RS-29 , RS-43 , RS-43 , RS-58 , RS-69 , RS-74 and RS-79 ). S Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs. S Never use SRS parts from another vehicle. When replacing parts, replace them with new parts. S Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain shield airbag assembly, airbag sensor assembly, front airbag sensor or side and curtain shield airbag sensor assembly in order to reuse it. S If the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain shield airbag assembly, airbag sensor assembly, front airbag sensor or side and curtain shield airbag sensor assembly has been dropped, or if there are cracks, dents or other defects in the case, bracket or connector, replace it with new one. S Use a volt/ohmmeter with high impedance (10 k/V minimum) for troubleshooting the system’s electrical circuits. S Information labels are attached to the periphery of the SRS components. Follow the instruc- tions on the notices. S After work on the SRS is completed, perform the SRS warning light check (See page DI-607 ). S When the negative (-) terminal cable is disconnected from the battery, the memory of the clock and audio system will be canceled. So before starting work, make a record of the contents mem- orized in the audio memory system. When work is finished, reset the audio systems as they were before and adjust the clock. To avoid erasing the memory in each memory system, never use a back- up power supply from outside the vehicle. S If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section.

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Page 1: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS01Y-54

-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAGRS-1

1917Author: Date:

2005 LEXUS IS300 (RM1140U)

SRS AIRBAGPRECAUTIONCAUTION: The LEXUS IS 300 is equipped with SRS, which comprises a driver airbag, front passenger air-

bag, side airbag and curtain shield airbag. Failure to carry out service operations in the correctsequence could cause the SRS to unexpectedly deploy during servicing, possibly leading toa serious accident. Further, if a mistake is made in servicing the SRS, it is possible that the SRSmay fail to operate when required. Before performing servicing (including removal or installa-tion of parts, inspection or replacement), be sure to read the following items carefully, then fol-low the correct procedures described in the repair manual.

Work must be started 90 seconds after the ignition switch is turned to the ”LOCK” position andthe negative (-) terminal cable is disconnected from the battery.(The SRS is equipped with a back-up power source so that if work is started within 90 secondsfrom disconnecting the negative (-) terminal cable of the battery, the SRS may be deployed.)

Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly,curtain shield airbag assembly, airbag sensor assembly, front airbag sensor or side and curtainshield airbag sensor assembly directly to hot air or flames.

NOTICE: Malfunction sym ptoms of the SRS are difficult to confirm, so the DTCs become the most impor-

tant source of information when troubleshooting. When troubleshooting the SRS, always in-spect the DTCs before disconnecting the battery.

Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, frontpassenger airbag assembly, side airbag assembly, airbag sensor assembly, front airbag sen-sor, curtain shield airbag assembly and side and curtain shield airbag sensor assembly shouldbe inspected (See page RS-15 , RS-29 , RS-43 , RS-43 , RS-58 , RS-69 , RS-74 and RS-79 ).

Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor duringrepairs.

Never use SRS parts from another vehicle. When replacing parts, replace them with new parts. Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side

airbag assembly, curtain shield airbag assembly, airbag sensor assembly, front airbag sensoror side and curtain shield airbag sensor assembly in order to reuse it.

If the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtainshield airbag assembly, airbag sensor assembly, front airbag sensor or side and curtain shieldairbag sensor assembly has been dropped, or if there are cracks, dents or other defects in thecase, bracket or connector, replace it with new one.

Use a volt/ohmmeter with high impedance (10 k Ω/V minimum) for troubleshooting the system’selectrical circuits.

Information labels are attached to the periphery of the SRS components. Follow the instruc-tions on the notices.

After work on the SRS is completed, perform the SRS warning light check (See page DI-607 ). When the negative (-) terminal cable is disconnected from the battery, the memory of the clock

and audio system will be canceled. So before starting work, make a record of the contents mem-orized in the audio memory system. When work is finished, reset the audio systems as theywere before and adjust the clock. To avoid erasing the memory in each memory system, neveruse a back- up power supply from outside the vehicle.

If the vehicle is equipped with a mobile communication system, refer to the precaution in theIN section.

Page 2: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H15213

RS0UB-02

R09725Spiral Cable

H15214

H08476

H19087

RS-2-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG

1918Author: Date:

2005 LEXUS IS300 (RM1140U)

OPERATION1. STEERING WHEEL PAD (with AIRBAG)The inflater and bag of the SRS are stored in the steering wheelpad and cannot be disassembled. The inflater contains a squib,igniter charge, gas generator, etc., and inflates the bag wheninstructed by the airbag sensor assembly.

2. SPIRAL CABLE (in COMBINATION SWITCH)A spiral cable is used as an electrical joint from the vehicle bodyside to the steering wheel.

3. FRONT PASSENGER AIRBAG ASSEMBLYThe inflater and bag of the SRS are stored in the front passen-ger airbag assembly and cannot be disassembled. The inflatercontains a squib, igniter charge, gas generator, etc., and in-flates the bag when instructed by the airbag sensor assembly.

4. SIDE AIRBAG ASSEMBLYThe inflater and bag of the SRS side airbag are stored in theside airbag assembly and cannot be disassembled. The inflatercontains a squib, igniter charge, gas generator, etc., and in-flates the bag when instructed by the side and curtain shield air-bag sensor assembly.

5. CURTAIN SHIELD AIRBAG ASSEMBLYThe inflater and bag of the SRS are stored in the curtain shieldairbag assembly and cannot be disassembled. The inflater con-tains a squib, igniter charge, gas generator, etc., and inflatesthe bag when instructed by the airbag sensor assembly.

Page 3: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H15784

H08442

H15215

H08444

H19108

-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAGRS-3

1919Author: Date:

2005 LEXUS IS300 (RM1140U)

6. SEAT BELT PRETENSIONERThe seat belt pretensioner system is a component of the frontseat outer belt. The pretensioner contains a squib, gas genera-tor, wire, piston, etc., and operates in the event of a frontal colli-sion. The seat belt pretensioner cannot be disassembled.

7. SRS WARNING LIGHTThe SRS warning light is located on the combination meter. Itgoes on to alert the driver of trouble in the system when a mal-function is detected in the airbag sensor assembly self-diagno-sis. In normal operation conditions when the ignition switch isturned to the ON position, the light goes on for about 6 secondsand then goes off.

8. AIRBAG SENSOR ASSEMBLYThe airbag sensor assembly is mounted on the floor inside theconsole box. The airbag sensor assembly consists of an airbagsensor, safing sensor, diagnosis circuit, ignition control, drivecircuit, etc. It receives signals from the airbag sensor, front air-bag sensor, side and curtain shield airbag sensor assembly anddoor side airbag assembly and judges whether the SRS mustbe activated or not. The airbag sensor assembly cannot be dis-assembled.

9. FRONT AIRBAG SENSORThe front airbag sensor is mounted inside each of the sidemembers. The sensor unit is a mechanical type. When the sen-sor detects deceleration force above a predetermined limit,contact is made in the sensor, sending a signal to the airbagsensor assembly. The front airbag sensor cannot be disas-sembled.

10. SIDE AND CURTAIN SHIELD AIRBAG SENSOR AS-SEMBLY

The side and curtain shield airbag sensor assembly is mountedin the LH and RH center pillars. The side and curtain shield air-bag sensor assembly consists of a lateral deceleration sensor,safing sensor, diagnosis circuit, etc. It sends signals to the air-bag sensor assembly to judge whether the SRS side and cur-tain shield airbag must be activated or not. The side and curtainshield airbag sensor assembly cannot be disassembled.

Page 4: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19095

Curtain Shield Airbag Assembly (RH)

Seat Belt Pretensioner (RH)

Side Airbag Assembly (RH)

Steering Wheel Pad (with Airbag)

23

2421

2219

2013

14

11

12

Spiral Cable

Cowl Side Junction Block RH

Cowl Side Junction Block LH

15

16

16

15

17

18

910

Front Passenger Airbag Assembly

Side Airbag Assembly (LH)

Seat Belt Pretensioner (LH)

Curtain Shield Airbag Assembly (LH)

23

24

21

22

19

20

12

34

56

78

34

56

78

Side and Curtain Shield Airbag Sensor Assembly (LH)

Front Airbag Sensor (LH)

Airbag Sensor Assembly

Front Airbag Sensor (RH)

Side and Curtain Shield Airbag Sensor Assembly (RH)

RS-4-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG

1920Author: Date:

2005 LEXUS IS300 (RM1140U)

11. SRS CONNECTORSHINT:SRS connectors are located as shown in the following illustra-tion.

Page 5: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

Z05953

Spacer

Housing

Female Male

-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAGRS-5

1921Author: Date:

2005 LEXUS IS300 (RM1140U)

No. Item Application

(1) Terminal Twin-Lock Mechanism Connectors 2, 4, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 19, 21, 23

(2) Airbag Activation Prevention Mechanism Connectors 2, 4, 12, 14, 18, 20, 22, 24

(3) Electrical Connection Check Mechanism Connectors 1, 2, 3, 4

(4) Half Connection Prevention Mechanism Connectors 6, 8, 9, 11, 13, 17, 19, 21, 23

(5) Connector Twin-Lock Mechanism Connectors 16

(a) All connectors in the SRS are colored in yellow to distin-guish them from other connectors. Connectors havingspecial functions and specifically designed for the SRSare used in the locations shown on the previous page toensure high reliability. These connectors use durablegold-plated terminals.

(1) Terminal twin-lock mechanism:Each connector has a two-piece component con-sisting of a housing and a spacer. This design en-ables the terminal to be locked securely by two lock-ing devices (the retainer and the lance) to preventterminals from coming out.

(2) Airbag activation prevention mechanism:Each connector contains a short spring plate. Whenthe connector is disconnected, the short springplate automatically connects positive (+) terminaland negative (-) terminal of the squib.

Page 6: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

R10587

When Connector is Connected When Connector is Disconnected

Short Spring PlateHousing

Housing

Terminal

Connectors Short Spring Plate

Squib

Closed Circuit

Squib

Short Spring Plate ON

Contacting Male Terminal

Short Spring Plate

H19096Airbag Sensor Assembly

DisconnectionDetectionPin

RS-6-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG

1922Author: Date:

2005 LEXUS IS300 (RM1140U)

HINT:The type of connector is shown in the diagram on the previouspage.

(3) Electrical connection check mechanism:This mechanism electrically checks that connectorsare connected correctly and completely. The electri-cal connection check mechanism is designed sothat the disconnection detection pin connects withthe diagnosis terminals when the connector hous-ing lock is locked.

Page 7: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H01315

Terminal for Diagnosis

Disconnection Detection Pin

Half Connection Complete Connection

Terminal forDiagnosis

H19097

Stopper

Locking Part

Spring

SliderLocking Arm

Rebounded by Slider(Spring)

Stopper

-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAGRS-7

1923Author: Date:

2005 LEXUS IS300 (RM1140U)

HINT:The connectors shown in this illustration are connectors, ”1”, ”2”and ”3” in step 8.

(4) Half connection prevention mechanism:If the connector is not completely connected, theconnector is disconnected due to the spring opera-tion to the extent that no continuity exists.

(5) Connector twin-lock mechanism:With this mechanism connectors (male and femaleconnectors) are locked by 2 locking devices to in-crease the connection reliability. If the primary lockis incomplete, ribs interfere and prevent the sec-ondary lock.

Page 8: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H03989

Secondary Lock

Primary Lock Lock Lock

Primary Lock Incomplete(Secondary Lock Prevented)

Primary Lock Complete(Secondary Lock Permitted)

Twin-Lock Completed

Z14034

Fig.1

Fig.2

Power Source

SafingSensor

Squibs

Deceleration Sensor

H01581

Outer

RS-8-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG

1924Author: Date:

2005 LEXUS IS300 (RM1140U)

(b) When the vehicle is involved in a frontal collision in thehatched area (Fig. 1) and the shock is larger than the pre-determined level, the SRS is activated automatically. Asafing sensor is designed to go on at a smaller decelera-tion rate than the airbag sensor. As illustrated in Fig. 2,ignition is caused when current flows to the squib, whichhappens when a safing sensor and the deceleration sen-sor go on simultaneously. When a deceleration force actson the sensors, 2 squibs in the driver airbag and front pas-senger airbag ignite and generate gas. The gas discharg-ing into the driver airbag and front passenger airbag rap-idly increases the pressure inside the bags, breakingopen the steering wheel pad and instrument panel.Bag inflation then ends, and the bags deflate as the gasis discharged through discharge holes at the bag’s rear orside.

12. DISCONNECTION OF CONNECTORS FOR FRONTAIRBAG SENSOR AND SIDE AND CURTAIN SHIELDAIRBAG SENSOR

(a) While holding both flank sides of the outer, slide the outerto the direction shown by an arrow.

(b) Lock of the connectors is released, then disconnect theconnectors.

HINT:Be sure to hold both flank sides of the outer. If holding the topand bottom sides, it will obstruct disconnection.

Page 9: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H01582

Lock of connector is released

Disconnection is completed

H01583

Outer Outer

-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAGRS-9

1925Author: Date:

2005 LEXUS IS300 (RM1140U)

13. CONNECTION OF CONNECTORS FOR FRONT AIR-BAG SENSOR AND SIDE AND CURTAIN SHIELD AIR-BAG SENSOR

(a) Align the male connector (of the side of sensor) and fe-male connector in the same direction as shown in the il-lustration and fit in them without rubbing.

(b) As they are fitted in, the outer slides rearward. Press it un-til the outer returns to its original position again.

If fitting stops half way, connectors will separate.(c) Be sure to insert until they are locked. After fitting in, pull

them slightly to check that they are locked. (When locked,make sure that the outer returns to its original position andsound at the time of fitting in can be heard.)

HINT: Do not fit in while holding the outer. When fitting in, the outer slides. Do not touch it.

14. DISCONNECTION OF SIDE AIRBAG CONNECTOR(a) Place a finger on the slider.(b) Slide the slider to release lock.(c) Disconnect the connector.

Page 10: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H01584

Slider

Disconnection is completed

Slider

H01585

Slider Slider

RS-10-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG

1926Author: Date:

2005 LEXUS IS300 (RM1140U)

15. CONNECTION OF SIDE AIRBAG CONNECTOR

(a) Align a lock part of male connector and a slider of femaleconnector in the same direction as shown in the illustra-tion, fit in them without rubbing.

(b) Be sure to insert until they are locked. After fitting in pullthem slightly to check that they are locked. (When locked,make sure that the outer returns to its original position andsound at the time of fitting in can be heard.)

HINT: As the slider slides, do not touch it. Be careful not to deform the release board. If the release

board is deformed, replace it with a new one.

Page 11: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H01586

Slider

Disconnection is completed

Slider

-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAGRS-1 1

1927Author: Date:

2005 LEXUS IS300 (RM1140U)

16. DISCONNECTION OF CONNECTORS FOR STEERINGWHEEL PAD (with AIRBAG), CURTAIN SHIELD AIR-BAG ASSEMBLY AND FRONT PASSENGER AIRBAGASSEMBLY

(a) Place a finger on the slider.(b) Slide the slider to release lock.(c) Disconnect the connector.

Page 12: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H01587

Slider Slider

RS-12-SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG

1928Author: Date:

2005 LEXUS IS300 (RM1140U)

17. CONNECTION OF CONNECTORS FOR STEERINGWHEEL PAD (with AIRBAG), CURTAIN SHIELD AIR-BAG ASSEMBLY AND FRONT PASSENGER AIRBAGASSEMBLY

(a) Align a lock part of male connector and a slider of femaleconnector in the same direction as shown in the illustra-tion, fit in them without rubbing.

(b) Be sure to insert until they are locked. After fitting in pullthem slightly to check that they are locked. (When locked,make sure that the outer returns to its original position andsound at the time of fitting in can be heard.)

HINT: As the slider slides, do not touch it. Be careful not to deform the release board. If the release

board is deformed, replace it with a new one.

Page 13: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS00Y-52

H08428

Steering Column Upper Cover

Spiral Cable

Steering Wheel

Steering Wheel Pad

Steering Column Lower Cover

N·m (kgf·cm, ft·lbf) : Specified torque

8.8 (90, 78 in.·lbf)

50 (510, 37)

Torx Screw

Torx Screw8.8 (90, 78 in.·lbf)

-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLERS-13

1929Author: Date:

2005 LEXUS IS300 (RM1140U)

STEERING WHEEL PAD AND SPIRAL CABLECOMPONENTS

Page 14: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS00Z-18

RS-14-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE

1930Author: Date:

2005 LEXUS IS300 (RM1140U)

REMOVALHINT:For step 1 to 4, refer to page SR-13 .1. REMOVE STEERING WHEEL PAD2. REMOVE STEERING WHEEL3. REMOVE STEERING COLUMN UPPER AND LOWER COVERS4. REMOVE SPIRAL CABLE

Page 15: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0RF-02

H15213

H08446

H08421

Horn ButtonContact Plate

Horn ButtonContact Plate

H15213

-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLERS-15

1931Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTION1. Vehicle not involved in collision:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEM(a) Do a diagnostic system check (See page DI-607 ).(b) Do a visual check which includes the following items with

the steering wheel pad (with airbag) installed in the ve-hicle.Check cuts, minute cracks or marked discoloration on thesteering wheel pad top surface and in the grooved por-tion.

2. Vehicle involved in collision and airbag is notdeployed:INSPECT SUPPLEMENTAL RESTRAINT SYSTEM

(a) Do a diagnostic system check (See page DI-607 ).

(b) Do a visual check which includes the following items withthe steering wheel pad (with airbag) removed from the ve-hicle. Check cuts, minute cracks or marked discoloration

on the steering wheel pad top surface and in thegrooved portion.

Check cuts and cracks in the wire harness, andchipping in the connectors.

Check the deformation of the horn button contactplate on the steering wheel.

CAUTION:For removal and installation of the steering wheel pad, seepage SR-13 and SR-25 , and be sure to follow the correctprocedure.HINT: If the horn button contact plate of the steering wheel is de-

formed, never repair it. Always replace the steering wheelassembly with a new one.

There should be no interference between the steeringwheel pad and steering wheel, and the clearance shouldbe uniform all the way around when a new steering wheelpad is installed on the steering wheel.

Page 16: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08421

Horn Button Contact Plate

Horn Button Contact Plate

H15213

RS-16-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE

1932Author: Date:

2005 LEXUS IS300 (RM1140U)

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

(a) Do a diagnostic system check (See page DI-607 ).

(b) Do a visual check which includes the following items withthe steering wheel pad (with airbag) removed from the ve-hicle. Check the deformation on the horn button contact

plate of the steering wheel. Check the damage on the spiral cable connector

and wire harness.HINT: If the horn button contact plate of the steering wheel is de-

formed, never repair it. Always replace the steering wheelassembly with a new one.

There should be no interference between the steeringwheel pad and steering wheel, and the clearance shouldbe uniform all the way around when a new steering wheelpad is installed on the steering wheel.

Page 17: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0RG-03

AB0152

SST

AB0158

SST

Battery

-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLERS-17

1933Author: Date:

2005 LEXUS IS300 (RM1140U)

DISPOSALHINT:When scrapping vehicle equipped with an SRS or disposing ofa steering wheel pad (with airbag), always first deploy the air-bag in accordance with the procedure described below. If anyabnormality occurs with the airbag deployment, contact theSERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.CAUTION: Never dispose of a steering wheel pad which has an

undeployed airbag. The airbag produces a sizeable exploding sound

when it deploys, so perform the operation out-of-doors and where it will not create a nuisance tonearby residents.

When deploying the airbag, always use the specifiedSST (SRS Airbag Deployment Tool). Perform the op-eration in a place away from electrical noise.SST 09082-00700

When deploying an airbag, perform the operation atleast 10 m (33 ft) away from the steering wheel pad.

The steering wheel pad is very hot when the airbag isdeployed, so leave it alone for at least 30 minutes af-ter deployment.

Use gloves and safety glasses when handling a steer-ing wheel pad with the deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a steering wheel pad withthe deployed airbag.

1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-HICLE

HINT:Have a battery ready as the power source to deploy the airbag.

Page 18: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

AB0152

SST

AB0158

SST

Battery

H01580

SST

H15714

H15216SST

RS-18-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE

1934Author: Date:

2005 LEXUS IS300 (RM1140U)

(a) Check functioning of the SST.CAUTION:When deploying the airbag, always use the specified SST:SRS Airbag Deployment Tool.

SST 09082-00700

(1) Connect the SST to the battery.Connect the red clip of the SST to the battery posi-tive (+) terminal and the black clip to the battery neg-ative (-) terminal.

HINT:Do not connect the yellow connector which will be connectedwith the supplemental restraint system.

(2) Check functioning of the SST.Press the SST activation switch, and check that theLED of the SST activation switch lights up.

CAUTION:If the LED lights up when the activation switch is not beingpressed, SST malfunction is probable, so definitely do notuse the SST.

(3) Disconnect the SST from the battery.

(b) Install the SST.CAUTION:Check that there is no looseness in the steering wheel andsteering wheel pad.

(1) While turning the steering wheel right/left, removethe 3 screws and column lower cover.

(2) Disconnect the airbag connector of the spiral cable.

(3) Connect the SST connector to the airbag connectorof the spiral cable.

SST 09082-00700NOTICE:To avoid damaging the connector of the SST and wire har-ness, do not lock the secondary lock of the twin lock.

Page 19: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

R13455

10 m (33 ft) or more

R06753

-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLERS-19

1935Author: Date:

2005 LEXUS IS300 (RM1140U)

(4) Move the SST at least 10 m (33 ft) away from thefront of the vehicle.

(5) Close all the doors and windows of the vehicle.NOTICE:Take care not to damage the SST wire harness.

(6) Connect the SST red clip to the battery positive (+)terminal and the black clip to the negative (-) termi-nal.

(c) Deploy the airbag.(1) Confirm that no one is inside the vehicle or within 10

m (33 ft) area around the vehicle.(2) Press the SST activation switch and deploy the air-

bag.CAUTION: The steering wheel pad is very hot when the airbag is

deployed, so leave it alone for at least 30 minutes af-ter deployment.

Use gloves and safety glasses when handling a steer-ing wheel pad with the deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a steering wheel pad withthe deployed airbag.

When scrapping a vehicle, deploy the airbag andscrap the vehicle with the steering wheel pad stillinstalled.

When moving a vehicle for scrapping which has asteering wheel pad with deployed airbag, use glovesand safety glasses.

HINT:The airbag deploys simultaneously as the LED of the SST ac-tivation switch lights up.2. DEPLOYMENT WHEN DISPOSING OF STEERING

WHEEL PAD ONLYNOTICE: When disposing of the steering wheel pad (with air-

bag) only, never use the customers vehicle to deploythe airbag.

Be sure to follow the procedure given below when de-ploying the airbag.

HINT:Have a battery ready as the power source to deploy the airbag.

Page 20: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08425

Connector

AB0163

Wire HarnessDiameter

Stripped Wire Harness Section

H08426

L

M

Washer

RS-20-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE

1936Author: Date:

2005 LEXUS IS300 (RM1140U)

(a) Remove the steering wheel pad (See page SR-13 ).CAUTION: When removing the steering wheel pad, work must be

started 90 seconds after the ignition switch is turnedto the ”LOCK” position and the negative (-) terminalcable is disconnected from the battery.

When storing the steering wheel pad, keep the uppersurface of the pad facing upward.

(b) Remove the connector on the rear surface of the steeringwheel pad from the bracket.

(c) Disconnect the engagement of the claw and remove thesteering wheel pad cover.

(d) Using a service-purpose wire harness, tie down thesteering wheel pad to the disc wheel.Wire harness: Stripped wire harness section1.25 mm2 or more (0.0019 in 2. or more).

CAUTION:If a wire harness which is too thin or some other thing isused to tie down the steering wheel pad, it may be snappedby the shock when the airbag is deployed. This is highlydangerous. Always use a wire harness for vehicle usewhich is at least 1.25 mm 2 (0.0019 in2).HINT:To calculate the square of the stripped wire harness section:

Square = 3.14 x (Diameter) 2 divided by 4

(1) Install the 2 bolts with the washers in the 2 bolt holesin the steering wheel pad.

Bolt:L: 35.0 mm (1.387 in.)M: 6.0 mm (0.236 in.)Pitch: 1.0 mm (0.039 in.)

NOTICE: Tighten the bolts by hand until the bolts become diffi-

cult to turn. Do not tighten the bolts too much.

Page 21: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08458

2 Times or more

2 Times or more

H08459

AB0158

SST

Battery

-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLERS-21

1937Author: Date:

2005 LEXUS IS300 (RM1140U)

(2) Using 3 wire harness, wind the wire harness at least2 times each around the bolts installed on the leftand right sides of the steering wheel pad.

CAUTION: Tightly wind the wire harness around the bolts so that

there is no slack. If there is slack in the wire harness, the steering wheel

pad may come loose due to the shock when the air-bag is deployed. This is highly dangerous.

(3) Face the upper surface of the steering wheel padupward. Separately tie the left and right sides of thesteering wheel pad to the disc wheel through thehub nut holes. Position the steering wheel pad con-nector so that it hangs downward through a hubhole in the disc wheel.

CAUTION: Make sure that the wire harness is tight. It is very dan-

gerous when looseness in the wire harness results inthe steering wheel pad coming free through the shockfrom the airbag deploying.

Always tie down the steering wheel pad with the padside facing upward. It is very dangerous if the steer-ing wheel pad is tied down with the metal surface fac-ing upward as the wire harness will be cut by theshock from the airbag deploying and the steeringwheel pad will be thrown into the air.

NOTICE:The disc wheel will be marked by airbag deployment, sowhen disposing of the airbag use a redundant disc wheel.(e) Check functioning of the SST (See step 1-(a)).

SST 09082-00700

Page 22: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08460

SST

H03207

10 m (33 ft) or more

H03205Weight

x

y

y

RS-22-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE

1938Author: Date:

2005 LEXUS IS300 (RM1140U)

(f) Install the SST.CAUTION:Place the disc wheel on the level ground.

(1) Connect the connector of 2 SST to the steeringwheel pad connector.

SST 09082-00700, 09082-00760NOTICE:To avoid damaging the SST connector and wire harness,do not lock the secondary lock of the twin lock. Also, se-cure some slack for the SST wire harness inside the discwheel.

(2) Move the SST to at least 10 m (33 ft) away from thesteering wheel pad tied down on the disc wheel.

(g) Cover the steering wheel pad with a cardboard box ortires. Covering method using a cardboard box:

Cover the steering wheel pad with the cardboardbox and weight the cardboard box down in 4 placeswith at least 190 N (20 kg, 44 lb).

Size of cardboard box:Must exceed the following dimensions:X = 460 mm (18.11 in.)Y = 650 mm (25.59 in.)

NOTICE: When dimension Y of the cardboard box exceeds the

diameter of the disc wheel with tire to which the steer-ing wheel pad is tied, X should be the following size.X = 460 mm (18.11 in.) + width of tire

If a cardboard box smaller than the specified size isused, the cardboard box will be broken by the shockfrom the airbag deployment.

Page 23: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H03206

Inner Diam.

Tires(3 or More)

Width

H03207

10 m (33 ft) or more

H03208

-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLERS-23

1939Author: Date:

2005 LEXUS IS300 (RM1140U)

Covering method using tires:Place at least 3 tires without disc wheel on top of thedisc wheel with tire to which the steering wheel padis tied.

Tire size: Must exceed the following dimensions-Width: 185 mm (7.87 in.)Inner diameter: 360 mm (14.17 in.)

CAUTION:Do not use tires with disc wheels.NOTICE:The tires may be marked by the airbag deployment, so usethe redundant tires.(h) Deploy the airbag.

(1) Connect the SST red clip to the battery positive (+)terminal and the black clip to the battery negative(-) terminal.

(2) Check that no one is within 10 m (33 ft) area aroundthe disc wheel which the steering wheel pad is tiedto.

(3) Press the SST activation switch and deploy the air-bag.

HINT:The airbag deploys simultaneously as the LED of the SST ac-tivation switch lights up.

(i) Dispose of the steering wheel pad (with airbag).CAUTION: The steering wheel pad is very hot when the airbag is

deployed, so leave it alone for at least 30 minutes af-ter deployment.

Use gloves and safety glasses when handling a steer-ing wheel pad with deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a steering wheel pad withdeployed airbag.(1) Remove the steering wheel pad from the disc

wheel.(2) Place the steering wheel pad in a vinyl bag, tie the

end tightly and dispose of it in the same way as oth-er general parts disposal.

Page 24: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H03208

RS-24-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE

1940Author: Date:

2005 LEXUS IS300 (RM1140U)

3. DEPLOYMENT WHEN DISPOSING OF STEERINGWHEEL PAD WITH AIRBAG DEPLOYED IN COLLI-SION

Dispose of the steering wheel pad (with airbag).CAUTION: The steering wheel pad is very hot when the airbag is

deployed, so leave it alone for at least 30 minutes af-ter deployment.

When moving a vehicle for scrapping which has asteering wheel pad with the deployed airbag, usegloves and safety glasses.

Use gloves and safety glasses when handling a steer-ing wheel pad with deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a steering wheel pad withthe deployed airbag.(1) Remove the steering wheel pad from the steering

wheel (See page SR-13 ).(2) Place the steering wheel pad in a vinyl bag, tie the

end tightly and dispose of it in the same way as oth-er general parts disposal.

Page 25: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS012-38

-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLERS-25

1941Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTREPLACEMENT REQUIREMENTSIn the following cases, replace the steering wheel pad, steering wheel or spiral cable.

Case Replacing part

If the airbag has been deployed. Steering wheel pad

If the steering wheel pad has been found to be faulty in troubleshooting. Steering wheel pad

If the spiral cable has been found to be faulty in troubleshooting. Spiral cable

If the steering wheel pad has been found to be faulty during checking items

(See page RS-15 ).Steering wheel pad

If the steering wheel has been found to be faulty during checking items (See

page RS-15 ).Steering wheel

If the spiral cable has been found to be faulty during checking items (See

page RS-15 ).Spiral cable

If the steering wheel pad has been dropped. Steering wheel pad

CAUTION:For removal and installation of the steering wheel pad, see page SR-13 and SR-25 . Be sure to followthe correct procedure.

Page 26: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS013-19

RS-26-SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE

1942Author: Date:

2005 LEXUS IS300 (RM1140U)

INSTALLATIONHINT:For step 1 to 4, refer to page SR-25 .1. INSTALL SPIRAL CABLE2. INSTALL STEERING COLUMN UPPER AND LOWER COVERS3. INSTALL STEERING WHEEL4. INSTALL STEERING WHEEL PAD

Page 27: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS014-40

H15527

Front Passenger Airbag Assembly

Glove Compartment Door

Hinge Shaft

Center Bracket

5.4 (55, 48 in.·lbf)

5.4 (55, 48 in.·lbf)

20 (205, 15)

N·m (kgf·cm, ft·lbf) : Specified torque

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLYRS-27

1943Author: Date:

2005 LEXUS IS300 (RM1140U)

FRONT PASSENGER AIRBAG ASSEMBLYCOMPONENTS

Page 28: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS02P-08

H15685

H15528

RS-28-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLY

1944Author: Date:

2005 LEXUS IS300 (RM1140U)

REMOVALNOTICE: If the wiring connector of the SRS is disconnected

and the ignition switch is in ON or ACC position, DTCswill be recorded.

Never use the airbag parts from another vehicle.When replacing parts, replace them with new parts.

1. DISCONNECT FRONT PASSENGER AI RBAG AS-SEMBLY CONNECTOR

Open the glove compartment door and disconnect the frontpassenger airbag assembly connector.NOTICE:When handling the airbag connector, take care not to dam-age the airbag wire harness.2. REMOVE GLOVE COMPARTMENT DOOR

(See page BO-135 )3. REMOVE CENTER BRACKETRemove the 3 screws and center bracket.

4. REMOVE FRONT PASSENGER AIRBAG ASSEMBLY(a) Remove the 2 bolts and nuts from the front passenger air-

bag assembly.(b) Disconnect the engagement of the claw at 10 positions

and remove the front passenger airbag assembly fromthe instrument panel.

CAUTION: Do not store the front passenger airbag assembly

with the airbag deployment side facing downward. Never disassemble the front passenger airbag as-

sembly.NOTICE:When removing the front passenger airbag assembly, takecare not to damage the wire harness.

Page 29: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS02Q-14

H15214

H08450

H15529

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLYRS-29

1945Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTION1. Vehicle not involved in collision :

INSPECT SUPPLEMENTAL RESTRAINT SYSTEM(a) Do a diagnostic system check (See page DI-607 ).(b) Do a visual check which includes the following item with

the front passenger airbag assembly installed in the ve-hicle.Check cuts, minute cracks or marked discoloration on thefront passenger airbag assembly and instrument panel.

2. Vehicle involved in collision and airbag is notdeployed:INSPECT SUPPLEMENTAL RESTRAINT SYSTEM

(a) Do a diagnostic system check (See page DI-607 ).

(b) Do a visual check which includes the following items withthe front passenger airbag assembly removed from thevehicle. Check cuts, minute cracks or marked discoloration

on the front passenger airbag assembly. Check cuts and cracks in the wire harness, and for

chipping in the connectors.

Check the deformation or cracks on the instrumentpanel and instrument panel reinforcement.

CAUTION:For removal and installation of the front passenger airbagassembly, see page RS-28 and RS-38 , and be sure to fol-low the correct procedure.HINT:If the instrument panel or instrument panel reinforcement is de-formed or cracked, never repair it. Always replace it with a newone.

Page 30: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H15529

RS-30-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLY

1946Author: Date:

2005 LEXUS IS300 (RM1140U)

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

(a) Do a diagnostic system check (See page DI-607 ).

(b) Do a visual check which includes the following items withthe front passenger airbag assembly removed from thevehicle. Check the deformation or cracks on the instrument

panel and instrument panel reinforcement. Check the damage on the connector and wire har-

ness.CAUTION:For removal and installation of the front passenger airbagassembly, see page RS-28 and RS-38 , and be sure to fol-low the correct procedure.HINT:If the instrument panel or instrument panel reinforcement is de-formed or cracked, never repair it. Always replace it with a newone.

Page 31: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0RH-01

AB0152

SST

AB0158

SST

Battery

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLYRS-31

1947Author: Date:

2005 LEXUS IS300 (RM1140U)

DISPOSALHINT:When scrapping vehicle equipped with an SRS or disposing ofa front passenger airbag assembly, always first deploy the air-bag in accordance with the procedure described below. If anyabnormality occurs with the airbag deployment, contact theSERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.CAUTION: Never dispose of a front passenger airbag assembly

which has an undeployed airbag. The airbag produces a sizeable exploding sound

when it deploys, so perform the operation out-of-doors and where it will not create a nuisance tonearby residents.

When deploying the airbag, always use the specifiedSST (SRS Airbag Deployment Tool). Perform the op-eration in a place away from electrical noise.SST 09082-00700

When deploying an airbag, perform the operation atleast 10 m (33 ft) away from the front passenger air-bag assembly.

The front passenger airbag assembly is very hotwhen the airbag is deployed, so leave it alone for atleast 30 minutes after deployment.

Use gloves and safety glasses when handling a frontpassenger airbag assembly with the deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a front passenger airbagassembly with the deployed airbag.

1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-HICLE

HINT:Have a battery ready as the power source to deploy the airbag.(a) Check functioning of the SST (See page RS-17 ).

SST 09082-00700

Page 32: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H15685

H15530SST

R13455

10 m (33 ft) or more

H03286

RS-32-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLY

1948Author: Date:

2005 LEXUS IS300 (RM1140U)

(b) Disconnect the front passenger airbag assembly connec-tor.Open the glove compartment door and disconnect thefront passenger airbag assembly connector.

NOTICE:When handling the airbag connector, take care not to dam-age the airbag wire harness.

(c) Install the SST.(1) Connect the connector of 2 SST to the front passen-

ger airbag assembly connector.SST 09082-00700, 09082-00760

NOTICE:To avoid damaging the SST connector and wire harness,do not lock the secondary lock of the twin lock.

(2) Move the SST to at least 10 m (33 ft) away from thefront of the vehicle.

(3) Close all the doors and windows of the vehicle.NOTICE:Take care not to damage the SST wire harness.

(4) Connect the SST red clip to the battery positive (+)terminal and the black clip to the negative (-) termi-nal.

(d) Deploy the airbag.(1) Check that no one is inside the vehicle or within 10

m (33 ft) area around the vehicle.(2) Press the SST activation switch and deploy the air-

bag.CAUTION: The front passenger airbag assembly is very hot

when the airbag is deployed, so leave it alone for atleast 30 minutes after deployment.

Use gloves and safety glasses when handling a frontpassenger airbag assembly with deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a front passenger airbagassembly with deployed airbag.

When moving a vehicle for scrapping which has afront passenger airbag assembly with deployed air-bag, use gloves and safety glasses.

Page 33: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08450

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLYRS-33

1949Author: Date:

2005 LEXUS IS300 (RM1140U)

HINT:The airbag deploys simultaneously as the LED of the SST ac-tivation switch light up.2. DEPLOYMENT WHEN DISPOSING OF FRONT PAS-

SENGER AIRBAG ASSEMBLY ONLYNOTICE: When disposing of the front passenger airbag assem-

bly only, never use the customer’s vehicle to deploythe airbag.

Be sure to follow the procedure given below when de-ploying the airbag.

HINT:Have a battery ready as the power source to deploy the airbag.

(a) Remove the front passenger airbag assembly(See page RS-28 ).

CAUTION: When removing the front passenger airbag assembly,

work must be started 90 seconds after the ignitionswitch is turned to the ”LOCK” position and the nega-tive (-) terminal cable is disconnected from the bat-tery.

When storing the front passenger airbag assembly,keep the upper surface of the airbag deployment sidefacing upward.

Page 34: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

AB0163

Wire HarnessDiameter

Stripped Wire Harness Section

H084522 times or more

R08582

Width

InnerDiam.

RS-34-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLY

1950Author: Date:

2005 LEXUS IS300 (RM1140U)

(b) Using a service-purpose wire harness for the vehicle, tiedown the front passenger airbag assembly to the tire.Wire harness: Stripped wire harness section 1.25 mm2 or more (0.0019 in. 2 or more)

CAUTION:If the front passenger airbag assembly is tied down withtoo thin wire harness, it may snap. This is highly danger-ous. Always use a wire harness which is at least 1.25 mm 2

(0.0019 in.2).HINT:To calculate the square of the stripped wire harness section:

Square = 3.14 X (Diameter) 2 divided by 4

(1) Pass the wire harness through the installationholes, as shown in the illustration.

(2) Position the front passenger airbag assembly in-side the tire with the airbag deployment side facinginside. Tie the front passenger airbag assembly tothe tire, as shown in the illustration.

Tire size: Must exceed the following dimensions-Width: 185 mm (7.28 in.)Inner diameter: 360 mm (14.17 in.)

CAUTION: Make sure that the wire harness is tight. It is very dan-

gerous if looseness in the wire harness results in thefront passenger airbag assembly coming free due tothe shock from the airbag deploying.

Always tie down the front passenger airbag assemblywith the airbag deployment side facing inside.

NOTICE:The tire will be marked by the airbag deployment, so use aredundant tire.

Page 35: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

AB0158

Battery

SST

H04528

Tires(5 or more)

R05403

R09690

Battery

SST Front PassengerAirbag Assembly

10 m (33 ft) or more

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLYRS-35

1951Author: Date:

2005 LEXUS IS300 (RM1140U)

(c) Check functioning of the SST (See step 1-(a) on page RS-14 ).SST 09082-00700

(d) Place the tires.(1) Place at least 2 tires under the tire to which the front

passenger airbag assembly is tied.(2) Place at least 2 tires over the tire to which the front

passenger airbag assembly is tied. The top tireshould have the wheel installed.

(3) Tie the tires together with the 2 wire harness.CAUTION:Make sure that the wire harness is tight. It is very danger-ous if loose wire harness result in the tires coming free dueto the shock from the airbag deploying.HINT:Place the SST connector and wire harness inside tires. Provideat least 1 m (3 ft) of slack for the wire harness.

(e) Install the SST.Connect the connector of 2 SST to the front passengerairbag assembly connector.SST 09082-00700, 09082-00760

NOTICE:To avoid damaging the SST connector and wire harness,do not lock the secondary lock of the twin lock.(f) Deploy the airbag.

(1) Connect the SST red clip to the battery positive (+)terminal and the black clip to the battery negative(-) terminal.

(2) Check that no one is within 10 m (33 ft) area aroundthe tire which the front passenger airbag assemblyis tied to.

(3) Press the SST activation switch and deploy the air-bag.

HINT:The airbag deploys simultaneously as the LED of the SST ac-tivation switch lights up.

Page 36: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

R09687

R09687

RS-36-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLY

1952Author: Date:

2005 LEXUS IS300 (RM1140U)

(g) Dispose of the front passenger airbag assembly.CAUTION: The front passenger airbag assembly is very hot

when the airbag is deployed, so leave it alone for atleast 30 minutes after deployment.

Use gloves and safety glasses when handling a frontpassenger airbag assembly with deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a front passenger airbagassembly with deployed airbag.(1) Remove the front passenger airbag assembly from

the tire.(2) Place the front passenger airbag assembly in a vi-

nyl bag, tie the end tightly and dispose of it in thesame way as other general parts.

3. DEPLOYMENT WHEN DISPOSING OF FRONT PAS-SENGER AIRBAG A SSEMBLY WITH AI RBAGDEPLOYED IN COLLISION

Dispose of the front passenger airbag assembly.CAUTION: The front passenger airbag assembly is very hot

when the airbag is deployed, so leave it alone for atleast 30 minutes after deployment.

Using gloves and safety glasses when handling afront passenger airbag assembly with the deployedairbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a front passenger airbagassembly with the deployed airbag.(1) Remove the front passenger airbag assembly from

the instrument panel (See page BO-139 ).(2) Place the front passenger airbag assembly in a vi-

nyl bag, tie the end tightly and dispose of it in thesame way so as other general parts disposal.

Page 37: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS018-30

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLYRS-37

1953Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTREPLACEMENT REQUIREMENTSIn the following cases, replace the front passenger airbag assembly, instrument panel or instrument panelreinforcement.

Case Replacing part

If the airbag has been deployed. Front passenger airbag assembly

If the front passenger airbag assembly has been found to be faulty in trouble-

shooting.Front passenger airbag assembly

If the front passenger airbag assembly has been found to be faulty during

checking items (See page RS-29 ).Front passenger airbag assembly

If the instrument panel has been found to be faulty during checking items

(See page RS-29 ).Instrument panel

If the instrument panel reinforcement has been found to be faulty during

checking items (See page RS-29 ).Instrument panel reinforcement

If the front passenger airbag assembly has been dropped. Front passenger airbag assembly

CAUTION:For replacement of the front passenger airbag assembly, see page RS-28 and RS-38 . Be sure to fol-low the correct procedure.

Page 38: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS019-11

H15528

H15685

RS-38-SUPPLEMENTAL RESTRAINT SYSTEM FRONT PASSENGER AIRBAG ASSEMBLY

1954Author: Date:

2005 LEXUS IS300 (RM1140U)

INSTALLATIONNOTICE:Never use airbag parts from another vehicle. When replac-ing parts, replace them with new parts.

1. INSTALL FRONT PASSENGER AIRBAG ASSEMBLYConnect the engagement of the claw at 10 positions and installthe front passenger airbag assembly to the instrument panelwith the 2 bolts and nuts.

Torque:Bolt: 20 N·m (205 kgf·cm, 15 ft·lbf)Nut: 5.4 N·m (55 kgf·cm, 48 in.·lbf)

NOTICE: Make sure that the front passenger airbag assembly

is installed with the specified torque. When installing the front passenger airbag assembly,

take care that the wiring does not interfere with otherparts and is not pinched between other parts.

If the front passenger airbag assembly has beendropped, or there are cracks, dents or other defectsin the case or connector, replace the front passengerairbag assembly with a new one.

2. INSTALL CENTER BRACKETInstall the center bracket with the 3 screws.3. INSTALL GLOVE COMPARTMENT DOOR

(See page BO-149 )

4. CONNECT FRONT PASSENGER AIRBAG ASSEMBLYCONNECTOR

Page 39: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0HK-02

H08471

Seat Track Cover

Front Seat CushionInner Shield

Front Seat CushionInner Shield

Power adjuster type:

Manual adjuster type:

Headrest

Side Airbag Assembly

Cover

Front Seat AirbagDoor

Seatback Assembly

Hog Ring

Seat Cushion AssemblyManual adjuster type:Reclining Adjuster Knob

Manual adjuster type:Front Seat Cushion Shield

Power adjuster type:

Power Seat Switch Knob

Front SeatCushion Shield

N·m (kgf·cm, ft·lbf) : Specified torque

Non-reusable part

43 (440, 32)

37 (375, 27)

37 (375, 27)

4.7 (48, 42 in.·lbf)

43 (440, 32)

Seatback Cover

Headrest Support

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-39

1955Author: Date:

2005 LEXUS IS300 (RM1140U)

SIDE AIRBAG ASSEMBLYCOMPONENTS

Page 40: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0HL-01

H08478

H08466

H08467

Slide Up

H08463

RS-40-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1956Author: Date:

2005 LEXUS IS300 (RM1140U)

REMOVALNOTICE: If the wiring connector of the SRS is disconnected

and the ignition switch is at ON or ACC position, DTCswill be recorded.

Never use the airbag parts from another vehicle.When replacing parts, replace them with new parts.

1. REMOVE FRONT SEAT(a) Remove the 2 seat track covers and 4 bolts.(b) Disconnect the connectors under the front seat.NOTICE:When handling the airbag connector, take care not to dam-age the airbag wire harness.(c) Remove the front seat.2. REMOVE HEADREST

3. REMOVE FRONT SEAT AIRBAG DOOR(a) Using a screwdriver, remove the 2 covers.HINT:Tape the screwdriver tip before use.

(b) Remove the 2 bolts.(c) Slide up the front seat airbag door and remove it.4. Power adjuster type:

REMOVE POWER SEAT SWITCH KNOBS

5. Manual adjuster type:REMOVE RECLINING ADJUSTER KNOB

Remove the screw and reclining adjuster knob.

Page 41: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08510

H08464

H08509

H08465

H08503

BandClamp

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-41

1957Author: Date:

2005 LEXUS IS300 (RM1140U)

6. Power adjuster type:REMOVE FRONT SEAT CUSHION SHIELD

Remove the 4 screws and front seat cushion shield.

7. Manual adjuster type:REMOVE FRONT SEAT CUSHION SHIELD

Remove the 3 screws and front seat cushion shield.

8. Power adjuster type:REMOVE FRONT SEAT CUSHION INNER SHIELD

Remove the 2 screws and front seat cushion inner shield.

9. Manual adjuster type:REMOVE FRONT SEAT CUSHION INNER SHIELD

Remove the 2 screws and front seat cushion inner shield.

10. DISCONNECT WIRE HARNESS FOR SIDE AIRBAGASSEMBLY FROM SEAT CUSHION ASSEMBLY

(a) Remove the band clamps.(b) Pull out the wire harness of the side airbag assembly and

seat heater (w/ seat heater).

Page 42: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08468

H08470

H08469

RS-42-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1958Author: Date:

2005 LEXUS IS300 (RM1140U)

11. REMOVE SEATBACK ASSEMBLY(a) Remove the LH reclining adjuster inside cover set screw.(b) Disconnect the wire harness of the side airbag assembly

from the LH reclining adjuster inside cover.

(c) Remove the 3 hog rings.

(d) Remove the 4 bolts and move the seatback assembly alittle upward.

NOTICE:Do not apply unnatural force to the airbag wire harness.(e) Remove the seatback assembly.NOTICE:Take care not to let the airbag wire harness catch on theseat adjuster assembly, as this can damage the airbag wireharness.

Page 43: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS05I-07

H08476

H08477

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-43

1959Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTION1. Vehicle not involved in collision:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEM(a) Do a diagnostic system check (See page DI-607 ).(b) Do a visual check which includes the following item with

the seatback assembly installed in the vehicle.Check for cuts, minute cracks or marked discoloration ofthe front seat airbag door.

2. Vehicle involved in collision and airbag is notdeployed:INSPECT SUPPLEMENTAL RESTRAINT SYSTEM

(a) Do a diagnostic system check (See page DI-607 ).

(b) Do a visual check which includes the following items withthe seatback assembly removed from the vehicle. Check cuts and cracks of the side airbag assembly. Check for cuts, minute cracks or marked discolor-

ation of the front seat airbag door. Check cuts and cracks in the wire harness, and

chipping in the connectors.CAUTION:For removal and installation of the seatback assembly, seepage RS-40 and RS-52 . Be sure to follow the correct pro-cedure.3. Vehicle involved in collision and airbag is deployed:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEM(a) Do a diagnostic system check (See page DI-607 ).(b) Do a visual check which includes the following items with

the seatback assembly removed from the vehicle. Check the seatback installation part of the seat ad-

juster. Check the damage to the connector and wire har-

ness.CAUTION:For removal and installation of the seatback assembly, seepage RS-40 and RS-52 . Be sure to follow the correct pro-cedure.HINT:If the seat adjuster is deformed, never repair it. Always replaceit with a new one.

Page 44: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0RI-01

AB0152

SST

AB0158

Battery

SST

RS-44-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1960Author: Date:

2005 LEXUS IS300 (RM1140U)

DISPOSALHINT:When scrapping vehicles equipped with an SRS or disposingof the side airbag assembly always first deploy the airbag in ac-cordance with the procedure described below. If any abnormal-ity occurs with the airbag deployment, contact the SERVICEDEPT. of TOYOTA MOTOR SALES, U.S.A., INC.CAUTION: Never dispose of a side airbag assembly which has

an undeployed airbag. The airbag produces a sizeable exploding sound

when it deploys, so perform the operation out ofdoors and where it will not create a nuisance tonearby residents.

When deploying the airbag, always use the specifiedSST (SRS Airbag Deployment Tool), perform the op-eration in a place away from electrical noise.SST 09082-00700

When deploying an airbag, perform the operation atleast 10 m (33 ft) away from the airbag assembly.

The side airbag assembly is very hot when the airbagis deployed, so leave it alone for at least 30 minutesafter deployment.

Use gloves and safety glasses when handling sideairbag assembly with the deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a side airbag assembly withthe deployed airbag.

1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-HICLE

HINT:Have a battery ready as the power source to deploy the airbag.(a) Check functioning of the SST (See step 1 - (a) on page

RS-17 ).SST 09082-00700

Page 45: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08478

H08479

Battery

SST

R13455

10 m (33 ft) or more

H08480

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-45

1961Author: Date:

2005 LEXUS IS300 (RM1140U)

(b) Disconnect the side airbag assembly connector.NOTICE:When handling the airbag connector, take care not to dam-age the airbag wire harness.

(c) Install the SST.(1) Connect the connector of 2 SST to the side airbag

assembly connector.SST 09082-00700, 09082-00750

NOTICE:To avoid damaging the SST connector and wire harness,do not lock the secondary lock of the twin lock.

(2) Move the SST at least 10 m (33 ft) away from thefront of the vehicle.

(3) Close all the doors and windows of the vehicle.NOTICE:Take care not to damage the SST wire harness.

(4) Connect the SST red clip to the battery positive (+)terminal and the black clip to the battery negative(-) terminal.

(d) Deploy the airbag.(1) Check that no one is inside the vehicle or within 10

m (33 ft) area around the vehicle.(2) Press the SST activation switch and deploy the air-

bag.CAUTION: The side airbag assembly is very hot when the airbag

is deployed, so leave it alone for at least 30 minutesafter deployment.

Use gloves and safety glasses when handling a sideairbag assembly with the deployed airbag.

Do not apply water, etc. to a side airbag assembly withthe deployed airbag.

Always wash your hands with water after completingthe operation.

When scrapping a vehicle, deploy the airbag andscrap the vehicle with the side airbag assembly stillinstalled.

Page 46: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08512

H08513

Front Side:

Rear Side:

RS-46-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1962Author: Date:

2005 LEXUS IS300 (RM1140U)

HINT:The airbag deploys simultaneously as the LED of SST activa-tion switch lights up.2. DEPLOYMENT WHEN DISPOSING OF SIDE AIRBAG

ASSEMBLYNOTICE: When disposing of the side airbag assembly only,

never use the customer’s vehicle to deploy the air-bag.

Be sure to follow the procedure given below when de-ploying the airbag.

HINT:Have a battery ready as the power source to deploy the airbag.

(a) Remove the side airbag assembly.(1) Disengage the seatback cover hooks circumfer-

ence of the side airbag assembly.

(2) Remove the 10 hog rings, headrest supports andseat back cover, as shown in the illustration.

Page 47: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08514

AB0163

Wire HarnessDiameter

Stripped Wire Harness Section

H08439

H08326

InnerDiam.

Width

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-47

1963Author: Date:

2005 LEXUS IS300 (RM1140U)

(3) Remove the 2 nuts and side airbag assembly.CAUTION:When storing the side airbag assembly, keep the upper sur-face of the airbag deployment side facing upward.

(b) Using a service-purpose wire harness, tie down the sideairbag assembly.Wire harness: Stripped wire harness section1.25 mm2 or more (0.0019 in 2 or more)

CAUTION:If a wire harness which is too thin or some other thing isused to tie down the side airbag assembly, it may besnapped by the shock when the airbag is deployed. This ishighly dangerous. Always use a wire harness for vehicleuse which is at least 1.25 mm 2 (0.0019 in2).HINT:To calculate the square of the stripped wire harness section:

Square = 3.14 x (Diameter) 2 divided by 4

(1) Install the 2 nuts to the side airbag assembly.(2) Wind the wire harness around the stud bolts of the

side airbag assembly, as shown in the illustration.

(3) Position the side airbag assembly inside the tirewith the airbag deployment direction facing inside.Tie the side airbag assembly to the tire, as shownin the illustration.

Tire size: Must exceed the following dimensions:-Width: 185 mm (7.28 in.)Inner diameter: 360 mm (14.17 in.)

Page 48: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

AB0158

SST

Battery

H01336

Tires(5 or More)

R05403

H0133710 m (33 ft) or more

SST

Battery

Side AirbagAssembly

RS-48-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1964Author: Date:

2005 LEXUS IS300 (RM1140U)

CAUTION: Make sure the wire harness is tight. It is very danger-

ous when a loose wire harness results in the side air-bag assembly coming free due to the shock from theairbag deploying.

Always tie down the side airbag assembly with theairbag deployment side facing inside.

NOTICE:The tire will be marked by the airbag deployment, so whendisposing of the airbag use a redundant tire.(c) Check functioning of the SST

(See step 1 - (a) on page RS-17 ).SST 09082-00700

(d) Place the tires.(1) Place at least 2 tires under the tire to which the side

airbag assembly is tied.(2) Place at least 2 tires over the tire to which the side

airbag assembly is tied. The top tire should have thewheel installed.

(3) Tie the tires together with the 2 wire harness.CAUTION:Make sure that the wire harness is tight. It is very danger-ous when loose wire harness results in the tires comingfree due to the shock from the airbag deploying.HINT:Place the SST connector and wire harness inside tires. Secureat least 1 m (3 ft) of slack for the wire harness.

(e) Install the SST.Connect the connector of 2 SST to the side airbag assem-bly connector.SST 09082-00700, 09082-00750

NOTICE:To avoid damaging the SST connector and wire harness,do not lock the secondary lock of the twin lock. Also, se-cure some slack for the SST wire harness inside the tire.

Page 49: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H00544

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-49

1965Author: Date:

2005 LEXUS IS300 (RM1140U)

(f) Deploy the airbag.(1) Connect the SST red clip to the battery positive (+)

terminal and the black clip to the battery negative(-) terminal.

(2) Check that no one is within 10 m (33 ft) area aroundthe tire which the side airbag assembly is tied to.

(3) Press the SST activation switch and deploy the air-bag.

HINT:The airbag deploys simultaneously as the LED of the SST ac-tivation switch lights up.

(g) Dispose of the side airbag assembly.CAUTION: The side airbag assembly is very hot when the airbag

is deployed, so leave it alone for at least 30 minutesafter deployment.

Use gloves and safety glasses when handling a sideairbag assembly with the deployed airbag.

Do not apply water etc. to a side airbag assembly withthe deployed airbag.

Always wash your hands with water after completingthe operation.(1) Remove the side airbag assembly from the tire.(2) Place the side airbag assembly in a vinyl bag, tie the

end tightly and dispose of it in the same way as oth-er general parts disposal.

Page 50: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H03208

RS-50-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1966Author: Date:

2005 LEXUS IS300 (RM1140U)

3. DEPLOYMENT WHEN DISPOSING OF SIDE AIRBAGASSEMBLY WITH AIRBAG DEPLOYED IN COLLISION

Dispose of the side airbag assembly.CAUTION: The side airbag assembly is very hot when the airbag

is deployed, so leave it alone for at least 30 minutesafter deployment.

Use gloves and safety glasses when handling a sideairbag assembly with deployed airbag.

Do not apply water, etc. to a side airbag assembly withthe deployed airbag.

Always wash your hands with water after completingthe operation.(1) Remove the side airbag assembly from the seat

(See step 2).(2) Place the side airbag assembly in a vinyl bag, tie the

end tightly and dispose of it in the same way as oth-er general parts disposal.

Page 51: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS05K-07

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-51

1967Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTREPLACEMENT REQUIREMENTSIn the following cases, replace the seatback assembly or front seat airbag door.

Case Replacing part

If the side airbag has been deployed. Seatback assembly

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

If the side airbag assembly has been found to be faulty during checking items

(See page RS-43 ).Seatback assembly

If the front seat airbag door has been found to be faulty during checking items

(See page RS-43 ).Front seat airbag door

If the seatback assembly has been dropped. Seatback assembly

CAUTION:For removal and installation of the seatback assembly, see page RS-40 and RS-52 . Be sure to followthe correct procedure.

Page 52: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0E5-03

H08468

H08469

H08470

RS-52-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1968Author: Date:

2005 LEXUS IS300 (RM1140U)

INSTALLATIONNOTICE:Never use airbag parts from another vehicle. When replac-ing parts, replace them with new parts.1. INSTALL SEATBACK ASSEMBLY(a) Temporarily install the seatback assembly.

(b) Set the wire harness of the side airbag assembly to theLH reclining adjuster inside cover, as shown.

(c) Install the LH reclining adjuster inside cover set screw.

(d) Install the 4 bolts.Torque: 43 N·m (440 kgf·cm, 32 ft·lbf)

NOTICE: Make sure that the seatback assembly is installed

with the specified torque. If the seatback assembly has been dropped, or there

are cracks, dents or other defects in the case or con-nector, replace the seatback assembly with a newone.

When installing the seatback assembly, take care it isnot pinched between other parts.

(e) Install 3 new hog rings, as shown in the illustration.HINT:When installing the hog rings, take care to prevent wrinkles asmuch as possible.

Page 53: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08503

BandClamp

H08509

H08465

H08510

H08464

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLYRS-53

1969Author: Date:

2005 LEXUS IS300 (RM1140U)

2. SET WIRE HARNESS FOR SIDE AIRBAG ASSEMBLYTO SEAT CUSHION ASSEMBLY

(a) Set the wire harness of the side airbag assembly and seatheater (w/ seat heater).

(b) Install the band clamps, as shown in the illustration.

3. Power adjuster type:INSTALL FRONT SEAT CUSHION INNER SHIELD

Install the front seat cushion inner shield with the 2 screws.

4. Manual adjuster type:INSTALL FRONT SEAT CUSHION INNER SHIELD

Install the front seat cushion inner shield with the 2 screws.

5. Power adjuster type:INSTALL FRONT SEAT CUSHION SHIELD

Install the front seat cushion shield with the 4 screws.

6. Manual adjuster type:INSTALL FRONT SEAT CUSHION SHIELD

Install the front seat cushion shield with the 3 screws.7. Power adjuster type:

INSTALL POWER SEAT SWITCH KNOBS

Page 54: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H08463

H08481

Slide Down

RS-54-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIRBAG ASSEMBLY

1970Author: Date:

2005 LEXUS IS300 (RM1140U)

8. Manual adjuster type:INSTALL RECLINING ADJUSTER KNOB

Install the reclining adjuster knob with the screw.

9. INSTALL FRONT SEAT AIRBAG DOOR(a) Slide down the front seat airbag door and install it.(b) Install the front seat airbag door with the 2 screws.

Torque: 4.7 N·m (48 kgf·cm, 42 in.·lbf)10. INSTALL HEADREST11. INSTALL FRONT SEAT(a) Mount the front seat to the vehicle.NOTICE:When mounting the seat to the vehicle, take care not todamage the airbag wire harness.(b) Connect the connectors under the front seat.(c) Slide the front seat to the front most position.NOTICE:Make sure that seat adjuster locks.(d) Tighten the bolts on the rear side temporarily, starting

from the bolt on the inner side tighten them completely.Torque: 37 N·m (375 kgf·cm, 27 ft·lbf)

(e) Slide the seat to the rearmost position to install the boltson the front side.Torque: 37 N·m (375 kgf·cm, 27 ft·lbf)

Page 55: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0N2-07

H19085

Curtain Shield Airbag Assembly

N·m (kgf·cm, ft·lbf) : Specified torque

9.8 (100, 86 in.·lbf)

9.8 (100, 86 in.·lbf)

9.8 (100, 86 in.·lbf)

-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLYRS-55

1971Author: Date:

2005 LEXUS IS300 (RM1140U)

CURTAIN SHIELD AIRBAG ASSEMBLYCOMPONENTS

Page 56: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UC-02

H19089

1 2 3

4

H19107

RS-56-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLY

1972Author: Date:

2005 LEXUS IS300 (RM1140U)

REMOVALNOTICE: If the wiring connector of the SRS is disconnected

and the ignition switch is at ON position, DTCs will berecorded.

Never use any airbag parts removed from another ve-hicle. When replacing parts, replace them with newones.

1. REMOVE ROOF HEADLINING

Pages for reference See page

Sedan BO-156

Wagon BO-164

2. In case without removing inflater: REMOVE CURTAIN SHIELD AIRBAG ASSEMBLY

(a) In the order shown in the illustration, remove the bolts anddeployment section of the curtain shield airbag assembly.

(b) Put the removed curtain shield airbag assembly into aclear plastic bag and put it on the instrument panel.

CAUTION:Never disassemble the curtain shield airbag assembly.NOTICE:The clear plastic bag is not reusable.3. REMOVE INSTRUMENT PANEL (See page BO-139 )

Page 57: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19088

LH Side:

RH Side:

H190901

2 3 4

5

6

H19106

-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLYRS-57

1973Author: Date:

2005 LEXUS IS300 (RM1140U)

4. REMOVE CURTAIN SHIELD AIRBAG ASSEMBLY(a) Disengage the clamp and remove the curtain shield air-

bag assembly connector.(b) Disconnect the connector for curtain sealed airbag as-

sembly.(c) Disengage the claw and disconnect the vehicle wire har-

ness from the bracket of the curtain shield airbag assem-bly.

(d) In the order shown in the illustration, remove the bolts andcurtain shield airbag assembly.

(e) Put the removed curtain shield airbag assembly into aclear plastic bag and keep it in a safe place.

CAUTION:Never disassemble the curtain shield airbag assembly.NOTICE:The protection bag is not reusable.

Page 58: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UD-02

H19094

RS-58-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLY

1974Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTION1. Vehicles not involved in collision:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEM(a) Perform a diagnostic system check (See page DI-607 ).(b) Perform a visual check which includes the following item

with the curtain shield airbag assembly installed in the ve-hicle.Check for cuts, minute cracks or marked discoloration onthe front pillar garnish and roof headlining.

2. Vehicle involved in a collision and airbag is notdeployed: INSPECT SUPPLEMENTAL RESTRAINT SYSTEM

(a) Perform a diagnostic system check (See page DI-607 ).

(b) Perform a visual check which includes the following itemswith the curtain shield airbag assembly removed from thevehicle. Check for cuts, tears and cracks, or marked discol-

oration of the curtain shield airbag assembly. Check for cuts and cracks in wire harness, and chip-

ping in connectors.CAUTION:For removal and installation of the curtain shield airbag as-sembly, see page RS-56 and RS-66 . Be sure to follow thecorrect procedure.3. Vehicle involved in a collision and airbag is deployed:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEM(a) Perform a diagnostic system check (See page DI-607 ).(b) Perform a visual check which includes the following items

with the curtain shield airbag assembly removed from thevehicle. Check for deformation or cracks on the body part to

where the curtain shield airbag installed. Check for damage of the connector and wire har-

ness.HINT:If the body part is deformed or cracked, replace it.

Page 59: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0N5-08

AB0152

SST

AB0158

Battery

SST

-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLYRS-59

1975Author: Date:

2005 LEXUS IS300 (RM1140U)

DISPOSALHINT:When scrapping vehicles equipped with an SRS or disposingof the curtain shield airbag assembly always first deploy the air-bag in accordance with the procedure described below. If anyabnormality occurs with the airbag deployment, contact theSERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.CAUTION: Never dispose of a curtain shield airbag assembly

which has an undeployed airbag. The airbag produces a sizeable exploding sound

when it deploys, so perform the operation out-of-doors and where it will not create a nuisance tonearby residents.

When deploying the airbag, always use the specifiedSST (SRS Airbag Deployment Tool), perform the op-eration in a place away from electrical noise.SST 09082-00700

When deploying an airbag, perform the operation atleast 10 m (33 ft) away from the airbag assembly.

The side airbag assembly is very hot when the airbagis deployed, so leave it alone for at least 30 minutesafter deployment.

Use gloves and safety glasses when handling sideairbag assembly with the deployed airbag.

Always wash your hands with water after completingthe operation.

Do not apply water, etc. to a side airbag assembly withthe deployed airbag.

1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-HICLE

HINT:Have a battery ready as the power source to deploy the airbag.(a) Check functioning of the SST (See step 1-(a) on page

RS-17 ).SST 09082-00700

Page 60: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19109

SST

SST

R13455

10 m (33 ft) or more

SST

Battery

H19105

RS-60-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLY

1976Author: Date:

2005 LEXUS IS300 (RM1140U)

(b) Disconnect the curtain shield airbag connector.NOTICE:When handling the airbag connector, take care not to dam-age the airbag wire harness.

(c) Install the SST.(1) Connect the connectors of the 2 SST to the airbag

connector.SST 09082-00700, 09082-00760

NOTICE:To avoid damaging the SST connector and wire harness,do not lock the secondary lock of the twin lock.

(2) Move the SST at least 10 m (33 ft) away from thefront of the vehicle.

(3) Close all the doors and windows of the vehicle.NOTICE:Take care not to damage the SST wire harness.

(4) Connect the SST red clip to the battery positive (+)terminal and the black clip to the battery negative(-) terminal.

(d) Deploy the airbag.(1) Check that no one is inside the vehicle or within 10

m (33 ft) area around the vehicle.(2) Press the SST activation switch and deploy the air-

bag.CAUTION: The curtain shield airbag assembly is very hot when

the airbag is deployed, so leave it alone for at least 30minutes after deployment.

Use gloves and safety glasses when handling the cur-tain shield airbag assembly with the deployed airbag.

Do not apply water, etc. to the curtain shield airbag as-sembly with the deployed airbag.

Always wash your hands with water after completingthe operation.

When scrapping a vehicle, deploy the airbag andscrap the vehicle with the curtain shield airbag as-sembly still installed.

Page 61: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19100

Cut

AB0163

Wire HarnessDiameter

Stripped Wire Harness Section

-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLYRS-61

1977Author: Date:

2005 LEXUS IS300 (RM1140U)

2. DEPLOYMENT WHEN DISPOSING OF CURTAINSHIELD AIRBAG ASSEMBLY

NOTICE: When disposing of the curtain shield airbag assem-

bly only, never use the customer’s vehicle to deploythe airbag.

Be sure to follow the procedure given below when de-ploying the airbag.

HINT:Have a battery ready as the power source to deploy the airbag.(a) Remove the curtain shield airbag assembly (See page

RS-56 ).

(b) Cut off the deployment section in airbag from inflator.

(c) Using a service-purpose wire harness, tie down the cur-tain shield airbag assembly to the tire.Wire harness: Stripped wire harness section1.25 mm2 or more (0.0019 in 2. or more)

CAUTION:If a wire harness which is too thin or some other thing isused to tie down the side airbag assembly, it may besnapped by the shock when the airbag is deployed. This ishighly dangerous. Always use a wire harness for vehicleuse which is at least 1.25 mm 2 (0.0019 in2.).HINT:To calculate the square of the stripped wire harness section-

Square = 3.14 x (Diameter) 2 divided by 4

Page 62: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19101

Width

Inner diam.

AB0158

SST

Battery

H19102

Tires (5 or More)

R05403

RS-62-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLY

1978Author: Date:

2005 LEXUS IS300 (RM1140U)

Position the curtain shield airbag assembly inside the tirewith the airbag deployment direction facing inside.Tire size: Must exceed the following dimensions-Width: 185 mm (7.28 in.)Inner diameter: 360 mm (14.17 in.)

CAUTION:Make sure the wire harness is tight. It is very dangerouswhen a loose wire harness results in the curtain shield air-bag assembly coming free due to the shock from the airbagdeploying.NOTICE:The tire will be marked by the airbag deployment, so whendisposing of the airbag use a redundant tire.

(d) Check functioning of the SST (See step 1-(a) on pageRS-17 ).SST 09082-00700

(e) Place the tires.CAUTION:Place the tire so that the deployment direction of the cur-tain shield airbag will be downward.

(1) Place at least 2 tires under the tire to which the sideairbag assembly is tied.

(2) Place at least 2 tires over the tire to which the sideairbag assembly is tied. The top tire should have thewheel installed.

(3) Tie the tires together with 2 wire harness.CAUTION:Make sure that the wire harness are tight. It is very danger-ous when loose wire harness results in the tires comingfree due to the shock from the airbag deploying.HINT:Place the SST connector and wire harness inside tires. Secureat least 1 m (3 ft) of slack for the wire harness.

Page 63: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H1910310 m (33 ft) or more

SST

Battery

H19104

-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLYRS-63

1979Author: Date:

2005 LEXUS IS300 (RM1140U)

(f) Install the SST.Connect the connectors of the 2 SST to the curtain shieldairbag assembly connector.SST 09082-00700, 09082-00760

NOTICE:To avoid damaging the SST connector and wire harness,do not lock the secondary lock of the twin lock. Also, se-cure some slack for the SST wire harness inside the tire.(g) Deploy the airbag.

(1) Connect the SST red clip to the battery positive (+)terminal and the black clip to the battery negative(-) terminal.

(2) Check that no one is within 10 m (33 ft) area aroundthe tire which the side airbag assembly is tied to.

(3) Press the SST activation switch and deploy the air-bag.

HINT:The airbag deploys simultaneously as the LED of the SST ac-tivation switch lights up.

(h) Dispose of the curtain shield airbag assembly.CAUTION: The curtain shield airbag assembly is very hot when

the airbag is deployed, so leave it alone for at least 30minutes after deployment.

Use gloves and safety glasses when handling a cur-tain shield airbag assembly with the deployed airbag.

Do not apply water etc. to a curtain shield airbag as-sembly with the deployed airbag.

Always wash your hands with water after completingthe operation.(1) Remove the curtain shield airbag assembly from

the tire.(2) Place the curtain shield airbag assembly in a vinyl

bag, tie the end tightly and dispose of it in the sameway as other general parts disposal.

Page 64: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19104

RS-64-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLY

1980Author: Date:

2005 LEXUS IS300 (RM1140U)

3. DEPLOYMENT WHEN DISPOSING OF SIDE AIRBAGASSEMBLY WITH AIRBAG DEPLOYED IN COLLISION

Dispose of the curtain shield airbag assembly.CAUTION: The curtain shield airbag assembly is very hot when

the airbag is deployed, so leave it alone for at least 30minutes after deployment.

Use gloves and safety glasses when handling a cur-tain shield airbag assembly with the deployed airbag.

Do not apply water etc. to a curtain shield airbag as-sembly with the deployed airbag.

Always wash your hands with water after completingthe operation.(1) Remove the curtain shield airbag assembly (See

page RS-56 ).(2) Place the curtain shield airbag assembly in a vinyl

bag, tie the end tightly and dispose of it in the sameway as other general parts disposal.

Page 65: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0N6-04

-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLYRS-65

1981Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTREPLACEMENT REQUIREMENTSIn the following cases, replace the curtain shield airbag assembly, front pillar garnish and/or roof headlining.

Case Part to be replaced

If the curtain shield airbag has been deployed. Curtain shield airbag assembly

If the curtain shield airbag assembly has been found to be faulty in trouble-

shooting.Curtain shield airbag assembly

If the curtain shield airbag assembly has been found to be faulty during

checking items (See page RS-58 ).Curtain shield airbag assembly

If the front pillar garnish has been found to be faulty during the check

(See page RS-58 ).Front pillar garnish

If the roof headlining has been found to be faulty during the check

(See page RS-58 ).Roof headlining

If the curtain shield airbag assembly has been dropped. Curtain shield airbag assembly

CAUTION:For removal and installation of the curtain shield airbag assembly, see page RS-56 and RS-66 . Besure to follow the correct procedure.

Page 66: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0N7-05

H19090

1

2

345

6

H19089

1

234

RS-66-SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIRBAG ASSEMBLY

1982Author: Date:

2005 LEXUS IS300 (RM1140U)

INSTALLATIONNOTICE:Never use airbag parts removed from another vehicle.When replacing parts, replace them with new parts.

1. INSTALL CURTAIN SHIELD AIRBAG ASSEMBLY(a) In order shown in the illustration, install the curtain shield

airbag assembly with the 6 bolts.Torque: 9.8 N·m (100 kgf·cm, 86 in.·lbf)

CAUTION:Pay attention not to tw ist the deployment section of the cur-tain shield airbag assembly.NOTICE: Make sure that the curtain shield airbag assembly is

installed with the specified torque. If the curtain shield airbag assembly has been

dropped, or any cracks, dents or other defects in thecase or connector, replace the curtain shield airbagassembly with a new one.

When installing the curtain shield airbag assembly,be careful to prevent it from being pinched betweenother parts.

(b) Connect the connector of the curtain shield airbag as-sembly.

2. INSTALL INSTRUMENT PANEL (See page BO-149 )3. When inflator is installed:

INSTALL CURTAIN SHIELD AIRBAG ASSEMBLYIn order shown in the illustration, install the deployment sectionof the curtain shield airbag assembly with the 4 bolts.

Torque: 9.8 N·m (100 kgf·cm, 86 in.·lbf)CAUTION:Pay attention not to twist it.NOTICE: Make sure that the curtain shield airbag assembly is

installed with the specified torque. When installing the curtain shield airbag assembly,

be careful to prevent it from being pinched betweenother parts.

4. INSTALL ROOF HEADLINING

Pages for reference See page

Sedan BO-160

Wagon BO-169

Page 67: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS01G-31

H15710

Center Register Opening Cover

Center Cluster Finish Panel

A/C Control with Radio Receiver Assembly

Lower Center ClusterFinish Panel

Airbag SensorAssembly Connector

Parking Brake Hole Cover

Upper Console Panel

N·m (kgf·cm, ft·lbf) : Specified torque

Floor Shift Lever Knob

Console Box

Airbag Sensor Assembly

Control Position Indicator Plate

20 (205, 15)

-SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLYRS-67

1983Author: Date:

2005 LEXUS IS300 (RM1140U)

AIRBAG SENSOR ASSEMBLYCOMPONENTS

Page 68: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0EY-13

H08433

RS-68-SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLY

1984Author: Date:

2005 LEXUS IS300 (RM1140U)

REMOVALNOTICE:Do not open the cover or the case of the ECU and variouselectrical devices unless absolutely necessary.(If the IC terminals are touched, the IC may be destroyed bystatic electricity.)HINT:For step 1 to 8, refer to page BO-139 .1. REMOVE FLOOR SHIFT LEVER KNOB2. REMOVE UPPER CONSOLE PANEL3. REMOVE CENTER REGISTER OPENING COVER4. REMOVE CENTER CLUSTER FINISH PANEL5. REMOVE LOWER CENTER CLUSTER FINISH PANEL6. REMOVE A/C CONTROL WITH RADIO RECEIVER AS-

SEMBLY7. REMOVE PARKING BRAKE HOLE COVER8. REMOVE CONSOLE BOX9. REMOVE CONTROL POSITION INDICATOR PLATE(a) Disconnect the connector.(b) Disconnect the engagement of the claw at 4 positions and

remove the control position indicator plate.

10. REMOVE AIRBAG SENSOR ASSEMBLY(a) Disconnect the 3 airbag sensor assembly connectors.NOTICE:Disconnect the connectors with the sensor assemblyinstalled.(b) Using a torx wrench, remove the 3 screws and airbag sen-

sor assembly.Torx wrench: T40 (Part No.09042-00020 or locallymanufactured tool)

Page 69: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS05T-04

-SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLYRS-69

1985Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTION1. Vehicle not involved in collision:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEMDo a diagnostic system check (See page DI-607 ).2. Vehicle involved in collision and airbag is not deployed:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEMDo a diagnostic system check (See page DI-607 ).3. Vehicle involved in collision and airbag is deployed:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEMReplace the airbag sensor assembly (See page RS-68 ).

Page 70: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS01J-13

RS-70-SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLY

1986Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTREPLACEMENT REQUIREMENTSIn the following cases, replace the airbag sensor assembly.

If the SRS has been deployed in a collision. If the airbag sensor assembly has been found to be faulty in troubleshooting. If the airbag sensor assembly has been dropped.

CAUTION:For removal and installation of the airbag sensor assembly, see page RS-68 and RS-71 . Be sure tofollow the correct procedure.

Page 71: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0EZ-13

H08433

-SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLYRS-71

1987Author: Date:

2005 LEXUS IS300 (RM1140U)

INSTALLATIONNOTICE: Never use SRS parts from another vehicle. When re-

placing parts, replace them with new parts. Never reuse the airbag sensor assembly involved in

a collision when the airbag has deployed. Never repair a sensor in order to reuse it.

HINT:For step 3 to 10, refer to page BO-149 .

1. INSTALL AIRBAG SENSOR ASSEMBLY(a) Using a torx wrench, install the airbag sensor assembly

with the 3 screws.Torx wrench: T40 (Part No.09042-00020 or locallymanufactured tool)Torque: 20 N·m (205 kgf·cm, 15 ft·lbf)

(b) Connect the 3 airbag sensor assembly connectors.NOTICE: Connection of the connector is done after the sensor

assembly has been installed. Make sure the sensor assembly is installed with the

specified torque. If the sensor assembly has been dropped, or there are

cracks, dents or other defects in the case, bracket orconnector, replace the sensor assembly with a newone.

When installing the sensor assembly, take care thatthe SRS wiring does not interfere with other parts andis not pinched between other parts.

After installing, shake the sensor assembly to checkthat there is no looseness.

2. INSTALL CONTROL POSITION INDICATOR PLATE(a) Connect the engagement of the claw at 4 positions and

install the control position indicator plate.(b) Connect the connector.3. INSTALL CONSOLE BOX4. INSTALL PARKING BRAKE HOLE COVER5. INSTALL A/C CONTROL WITH RADIO RECEIVER AS-

SEMBLY6. INSTALL LOWER CENTER CLUSTER FINISH PANEL7. INSTALL CENTER CLUSTER FINISH PANEL8. INSTALL CENTER REGISTER OPENING COVER9. INSTALL UPPER CONSOLE PANEL10. INSTALL FLOOR SHIFT LEVER KNOB

Page 72: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS07U-06

H19111N·m (kgf·cm, ft·lbf) : Specified torque

Front Airbag Sensor RH Connector

Front AirbagSensor RH

Front AirbagSensor LH

8.5 (86.7, 75 in.·lbf)

8.5 (86.7, 75 in.·lbf)

Front Airbag Sensor LH Connector

RS-72-SUPPLEMENTAL RESTRAINT SYSTEM FRONT AIRBAG SENSOR

1988Author: Date:

2005 LEXUS IS300 (RM1140U)

FRONT AIRBAG SENSORCOMPONENTS

Page 73: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UJ-02

H19112

LH:

RH:

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT AIRBAG SENSORRS-73

1989Author: Date:

2005 LEXUS IS300 (RM1140U)

REMOVALNOTICE: If the wiring connector of the SRS is disconnected

with the ignition switch in ON or ACC position, DTCswill be recorded.

Never use any SRS parts removed from another ve-hicle. When replacing parts, replace them with newone.

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

Never repair a sensor in order to reuse it.

REMOVE FRONT AIRBAG SENSOR(a) Disconnect the front airbag sensor connector.NOTICE:Disconnect the connector with the sensor assemblyinstalled.(b) Remove the 2 bolts and front airbag sensor.(c) Employ the same manner described above to the other

side.

Page 74: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS07W-05

H08444

H19093

LH:

RH:

RS-74-SUPPLEMENTAL RESTRAINT SYSTEM FRONT AIRBAG SENSOR

1990Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTION1. VEHICLES NOT INVOLVED IN COLLISIONPerform a diagnostic system check (See page DI-607 ).2. VEHICLES INVOLVED IN COLLISION(a) Perform a diagnostic system check (See page DI-607 ).(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 wasnot 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

Page 75: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS07X-04

-SUPPLEMENTAL RESTRAINT SYSTEM FRONT AIRBAG SENSORRS-75

1991Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTREPLACEMENT REQUIREMENTSIn 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-74 ). If the front airbag sensor has been dropped.

CAUTION:For removal and installation of the front airbag sensor, see page RS-73 and RS-76 . Be sure to followthe correct procedure.

Page 76: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19093

RH:

LH:

RS0UK-02

RS-76-SUPPLEMENTAL RESTRAINT SYSTEM FRONT AIRBAG SENSOR

1992Author: Date:

2005 LEXUS IS300 (RM1140U)

INSTALLATIONINSTALL FRONT AIRBAG SENSOR(a) Install the front airbag sensor with the arrow on the sensor

facing toward the front of the vehicle.Torque: 8.5 N·m (86.7 kgf·cm, 75 in.·lbf)

NOTICE: Connection of the connector is done after the sensor

has been installed. Make sure the sensor is installed with 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 with a new one.

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 theconnector is not securely locked, a malfunction codewill be detected by the diagnostic system.

(b) Connect the front airbag sensor connector.

Page 77: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UE-03

H19113

N·m (kgf·cm, ft·lbf) : Specified torque

Front Door Inside Scuff Plate

Side and Curtain Shield AirbagSensor Assembly

20 (205, 15)

8.8 (90, 78 in.·lbf)

44 (450, 33)

Outer Anchor Cover

Front Seat Outer Belt Assembly

44 (450, 33)

Anchor Cover

Rear Door Inside Scuff Plate

Center Pillar Lower Garnish

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AND CURTAIN SHIELD AIRBAG SENSOR ASSEMBLY

RS-77

1993Author: Date:

2005 LEXUS IS300 (RM1140U)

SIDE AND CURTAIN SHIELD AIRBAG SENSOR ASSEMBLYCOMPONENTS

Page 78: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UF-03

H19110

RS-78 -SUPPLEMENTAL RESTRAINT SYSTEM SIDE AND CURTAIN SHIELD AIRBAG SENSOR ASSEMBLY

1994Author: Date:

2005 LEXUS IS300 (RM1140U)

REMOVALNOTICE: If the wiring connector of the SRS is disconnected

with the ignition switch at ON position, DTC will be re-corded.

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.)

1. REMOVE FRONT AND REAR DOOR INSIDE SCUFFPLATES

2. REMOVE CENTER PILLAR LOWER GARNISH3. REMOVE FRONT SEAT OUTER BELT ASSEMBLY

Pages for reference See page

Sedan BO-211

Wagon BO-214

4. REMOVE SIDE AND CURTAIN SHIELD AIRBAG SEN-SOR ASSEMBLY

(a) Disconnect the side and curtain shield airbag sensor as-sembly connector.

NOTICE:Disconnect the connector with the sensor assemblyinstalled.(b) Remove the 3 bolts and side and curtain shield airbag

sensor assembly.

Page 79: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UG-01

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AND CURTAIN SHIELD AIRBAG SENSOR ASSEMBLY

RS-79

1995Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTION1. Vehicle not involved in collision:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEMDo a diagnostic system check (See page DI-607 ).2. Vehicle involved in collision and airbag is not deployed:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEMDo a diagnostic system check (See page DI-607 ).3. Vehicle involved in collision and airbag is deployed:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEMReplace the side airbag sensor assembly (See page RS-78 ).

Page 80: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UH-01

RS-80 -SUPPLEMENTAL RESTRAINT SYSTEM SIDE AND CURTAIN SHIELD AIRBAG SENSOR ASSEMBLY

1996Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTREPLACEMENT REQUIREMENTSIn the following cases, replace the side and curtain shield airbag sensor assembly.

If the side and curtain shield airbag sensor assembly has been deployed in a collision. If the side and curtain shield airbag sensor assembly has been found to be faulty in troubleshoot-

ing. If the side and curtain shield airbag sensor assembly has been dropped.

CAUTION:For removal and installation of the side and curtain shield airbag sensor assembly, see page RS-78and RS-81 . Be sure to follow the correct procedure.

Page 81: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UI-02

H19110

-SUPPLEMENTAL RESTRAINT SYSTEM SIDE AND CURTAIN SHIELD AIRBAG SENSOR ASSEMBLY

RS-81

1997Author: Date:

2005 LEXUS IS300 (RM1140U)

INSTALLATIONNOTICE: Never use SRS parts from another vehicle. When re-

placing parts, replace them with new ones. Never reuse the side and curtain shield airbag sensor

assembly involved in a collision when the airbag hasdeployed.

Never repair a sensor in order to reuse it.

1. INSTALL SIDE AND CURTAIN SHIELD AIRBAG SEN-SOR ASSEMBLY

(a) Install the side and curtain shield airbag sensor assemblywith the 3 bolts.Torque: 20 N·m (205 kgf·cm, 15 ft·lbf)

(b) Connect the side and curtain shield airbag sensor assem-bly connector.

NOTICE: Connection of the connector is done after the sensor

assembly has been installed. Make sure the sensorassembly is installed with the specified torque.

If the sensor assembly has been dropped, or there arecracks, dents or other defects in the case, bracket orconnector, replace the sensor assembly with a newone.

When installing the sensor assembly, take care thatthe SRS wiring does not interfere with other parts andis not pinched between other parts.

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

2. INSTALL FRONT SEAT OUTER BELT ASSEMBLY

Pages for reference See page

Sedan BO-211

Wagon BO-214

3. INSTALL CENTER PILLAR LOWER GARNISH4. INSTALL FRONT AND REAR DOOR INSIDE SCUFF

PLATES

Page 82: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS0UL-02

H19272

Front Airbag Sensor (LH)

Combination Meter (Warning Light)

Curtain Shield Airbag Assembly (LH)

Steering Wheel Pad (with Airbag)

Front Airbag Assembly (RH)

Front Passenger Airbag Assembly

Curtain Shield Airbag Assembly (RH)

Side Airbag Assembly (RH)

Seat Belt Pretensioner (RH)

Side and Curtain Shield Airbag Sensor Assembly (RH)

Airbag Sensor Assembly

Side and Curtain Shield Airbag Sensor Assembly (LH)

Seat Belt Pretensioner (LH)

Spiral Cable

Side Airbag Assembly (LH)

Sedan:

RS-82-SUPPLEMENTAL RESTRAINT SYSTEM WIRE HARNESS AND CONNECTOR

1998Author: Date:

2005 LEXUS IS300 (RM1140U)

WIRE HARNESS AND CONNECTORLOCATION

Page 83: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

H19086

Front Airbag Sensor (LH)

Combination Meter (Warning Light)

Curtain Shield Airbag Assembly (LH)

Steering Wheel Pad (with Airbag)

Front Airbag Assembly (RH)

Front Passenger Airbag Assembly

Curtain Shield Airbag Assembly (RH)

Side and Curtain ShieldAirbag Assembly (RH)

Seat Belt Pretensioner (RH)

Side Airbag Sensor Assembly (RH)

Airbag Sensor Assembly

Side and Curtain ShieldAirbag Sensor Assembly (LH)

Seat Belt Pretensioner (LH)

Spiral Cable

Wagon:

Side Airbag Assembly (LH)

-SUPPLEMENTAL RESTRAINT SYSTEM WIRE HARNESS AND CONNECTORRS-83

1999Author: Date:

2005 LEXUS IS300 (RM1140U)

Page 84: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS085-04

RS-84-SUPPLEMENTAL RESTRAINT SYSTEM WIRE HARNESS AND CONNECTOR

2000Author: Date:

2005 LEXUS IS300 (RM1140U)

INSPECTIONHINT:The SRS wire harness is integrated with the instrument panel wire harness assembly. All the connectors inthe system are a standard yellow color.1. Vehicles not involved in collision:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEMPerform a diagnostic system check (See page DI-607 ).2. Vehicles involved in collision:

INSPECT SUPPLEMENTAL RESTRAINT SYSTEM(a) Perform a diagnostic system check (See page DI-607 ).(b) Check breaks in all wires of the SRS wire harness, and exposed conductors.(c) Check to see if the SRS wire harness connectors are cracked or chipped.

Page 85: SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG SRS AIRBAG · SUPPLEMENTAL RESTRAINT SYSTEM - SRS AIRBAG RS-1 Author: Date: 1917 2005 LEXUS IS300 (RM1140U) SRS AIRBAG PRECAUTION CAUTION:

RS086-04

-SUPPLEMENTAL RESTRAINT SYSTEM WIRE HARNESS AND CONNECTORRS-85

2001Author: Date:

2005 LEXUS IS300 (RM1140U)

REPLACEMENTIn the following cases,replace the wire harness or connector.

If any part of the SRS wire harness or any connector has been found to be faulty in troubleshoot-ing.

If any part of the SRS wire harness or any connector has been found to be faulty during checkingitems (See page RS-84 ).

CAUTION:If the wire harness used in the SRS is damaged, replace the whole wire harness assembly.