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陆地巡洋舰气囊维修手册英文pdf 97页 陆地巡洋舰 气囊 维修 手册 英文 pdf 97

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RS0B6 06 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 1 702Author Date 2004 LAND CRUISER RM1071U SRS AIRBAG PRECAUTION CAUTION The LAND CRUISER is equipped with SRS which comprises a driver airbag front passenger airbag side airbag and curtain shield airbag Failure to carry out service operations in the cor rect 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 installation of parts inspection or replacement be sure to read the following items carefully then follow the correct procedures described in the repair manual 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 Do not expose the steering wheel pad front passenger airbag assembly side airbag assembly curtain shield airbag assembly airbag sensor assembly front airbag sensor side and curtain shield airbag sensor assembly curtain shield airbag sensor assembly or seat position sensor assembly directly to hot air or flames NOTICE 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 Even in the case of a minor collision where the SRS does not deploy the steering wheel pad front passenger airbag assembly side airbag assembly curtain shield airbag assembly airbag sensor assembly front airbag sensor side and curtain shield airbag sensor assembly curtain shield airbag sensor assembly and seat position sensor assembly should be inspected See page RS 18 RS 32 RS 47 RS 60 RS 71 RS 76 RS 81 RS 87 and RS 92 Before repairs remove the airbag sensor if shocks are likely to be applied to the sensor during repairs 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 sensor side and curtain shield airbag sensor assembly curtain shield airbag sensor assembly or seat position sensor assembly in order to reuse it If the steering wheel pad front passenger airbag assembly side airbag assembly curtain shield airbag assembly airbag sensor assembly front airbag sensor side and curtain shield airbag sensor assembly curtain shield airbag sensor assembly or seat position sensor assem bly has been dropped or if there are cracks dents or other defects in the case bracket or con nector replace it with new one Use a volt ohmmeter with high impedance 10 k V minimum for troubleshooting the system s electrical circuits Information labels are attached to the periphery of the SRS components Follow the instruc tions on the notice After work on the SRS is completed perform the SRS warning light check See page DI 692 RS 2 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG 703Author Date 2004 LAND CRUISER RM1071U 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 If the vehicle is equipped with a mobile communication system refer to the precaution in the IN section H20912 RS0VH 01 H20913 Spiral Cable H21094 H20914 H20915 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 3 704Author Date 2004 LAND CRUISER RM1071U OPERATION 1 STEERING WHEEL PAD with AIRBAG The inflater and bag of the SRS are stored in the steering wheel pad and cannot be disassembled The inflater contains a squib igniter charge gas generator etc and inflates the bag when instructed by the airbag sensor assembly 2 SPIRAL CABLE in COMBINATION SWITCH A spiral cable is used as an electrical joint from the vehicle body side to the steering wheel 3 FRONT PASSENGER AIRBAG ASSEMBLY The inflater and bag of the SRS are stored in the front passen ger airbag assembly and cannot be disassembled The inflater contains a squib igniter charge gas generator etc and in flates the bag when instructed by the airbag sensor assembly 4 SIDE AIRBAG ASSEMBLY The inflater and bag of the SRS side airbag are stored in the side airbag assembly and cannot be disassembled The inflater contains a squib igniter charge gas generator etc and in flates the bag when instructed by the side airbag sensor assem bly 5 CURTAIN SHIELD AIRBAG ASSEMBLY The inflater and bag of the SRS are stored in the curtain shield airbag assembly and cannot be disassembled The inflater con tains a squib igniter charge gas generator etc and inflates the bag when instructed by the side airbag sensor assembly H04096 H20916 H20917 H20918 H20919 RS 4 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG 705Author Date 2004 LAND CRUISER RM1071U 6 SEAT BELT PRETENSIONER The seat belt pretensioner system is a component of the front seat outer belt The seat belt pretensioner cannot be disas sembled 7 SRS WARNING LIGHT The SRS warning light is located on the combination meter It goes 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 operating conditions when the ignition switch is turned to the ON position the light comes on for about 3 se conds and then goes off 8 AIRBAG SENSOR ASSEMBLY The airbag sensor assembly is mounted on the floor inside the front console box The airbag sensor assembly consists of an airbag sensor safing sensor diagnosis circuit ignition control drive circuit etc It receives signals from the airbag sensor front airbag sensor side and curtain shield airbag sensor assembly curtain shield airbag sensor assembly and judges whether the SRS must be activated or not The airbag sensor assembly can not be disassembled 9 FRONT AIRBAG SENSOR The front airbag sensor is mounted on each of the radiator side supports The front airbag sensor consists of a frontal decelera tion sensor diagnosis circuit etc These send signals to the air bag sensor 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 mounted in the LH and RH center pillars The side and curtain shield air bag sensor assembly consist of a lateral deceleration sensor safing sensor diagnosis circuit etc These send signals to the airbag sensor assembly to judge whether the SRS side airbag and curtain shield airbag must be activated or not The side and curtain shield airbag sensor assembly cannot be disas sembled H20920 H21045 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 5 706Author Date 2004 LAND CRUISER RM1071U 11 CURTAIN SHIELD AIRBAG SENSOR ASSEMBLY The curtain shield airbag sensor assembly is mounted in the LH and RH rear pillars The curtain shield airbag sensor assembly consists of a lateral deceleration sensor safing sensor diagno sis circuit etc These sensors send signals to the airbag sensor assembly to judge whether the SRS curtain shield airbag must be activated or not The curtain shield airbag sensor assembly cannot be disassembled 12 SEAT POSITION SENSOR ASSEMBLY The seat position sensor assembly is mounted on the seat rail of the driver s seat The sensor unit consists of a magnet sen sor diagnosis circuit etc It judges the seat sliding position and sends the signal to the airbag sensor assembly The seat posi tion sensor assembly cannot be disassembled H21890 Airbag Sensor Assembly 1 2 3 8 910 11 14 Front Airbag Sensor RH 5 Front Passenger Airbag Assembly Squib Spiral Cable 7 Steering Wheel Pad Squib 6 15 4 16 18 17 19 Seat Belt Pretensioner RH Seat Belt Pretensioner LH Front Seat Inner Belt LH Seat Position Sensor Front Airbag Sensor LH 1213 w o Side Airbag RS 6 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG 707Author Date 2004 LAND CRUISER RM1071U 13 SRS CONNECTORS HINT SRS connectors are located as shown in the following illustra tion SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 7 708Author Date 2004 LAND CRUISER RM1071U No ItemApplication 1 Terminal Twin Lock MechanismConnectors 1 2 3 4 5 7 9 10 11 12 13 14 2 Activation Prevention MechanismConnectors 1 2 3 4 5 6 7 8 15 3 Electrical Connection Check MechanismConnectors 1 2 3 4 Half Connection Prevention MechanismConnectors 4 5 7 9 10 11 12 13 14 5 Connector Lock MechanismConnectors 6 H21159 Airbag Sensor Assembly 1 2 3 8 9 10 11 12 13 14 Side Airbag Assembly RH Squib Front Airbag Sensor RH 6 Front Passenger Airbag Assembly Squib Spiral Cable Steering Wheel Pad Squib 7 15 Front Airbag Sensor LH Side Airbag Assembly LH Squib 5 16 18 17 Curtain Shield Airbag Sensor Assembly RH Curtain Shield Airbag Assembly LH Squib 19 20 21 22 Seat Belt Pretensioner RH Side and Curtain Shield Airbag Sensor Assembly RH Side and Curtain Shield Airbag Sensor Assembly LH Curtain Shield Airbag Assembly RH Squib Curtain Shield Airbag Sensor Assembly LH Seat Belt Pretensioner LH Front Seat Inner Belt LH Seat Position Sensor 23 RSCA Off Switch 24 25 26 RSCA Off Indicator 4 27 28 29 w Side Airbag RS 8 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG 709Author Date 2004 LAND CRUISER RM1071U Z05953 Spacer Housing FemaleMale R10587 When Connector is ConnectedWhen Connector is Disconnected Short Spring Plate Housing Housing Terminal Connectors Short Spring Plate Squib Closed Circuit Squib Short Spring Plate ON Contacting Male Terminal Short Spring Plate SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 9 710Author Date 2004 LAND CRUISER RM1071U No ItemApplication 1 Terminal Twin Lock Mechanism Connectors 1 2 3 4 5 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2 Activation Prevention MechanismConnectors 1 2 3 4 5 6 10 13 14 21 22 25 3 Electrical Connection Check MechanismConnectors 1 2 3 4 Half Connection Prevention Mechanism Connectors 4 5 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 5 Connector Lock MechanismConnectors 6 a All connectors in the SRS are colored in yellow to distin guish them from other connectors Connectors having special functions and specifically designed for the SRS are used in the locations shown on the previous page to ensure high reliability These connectors use durable gold plated terminals 1 Terminal Twin Lock Mechanism Each connector has a two piece component con sisting of a housing and a spacer This design al lows the terminal to be locked securely by two lock ing devices the retainer and the lance to prevent terminals from coming out 2 Activation Prevention Mechanism Each connector contains a short spring plate When the connector is disconnected the short spring plate automatically connects positive terminal and negative terminal of the squib H20053 Disconnection Detection Pin Airbag Sensor Assembly H01315 Terminal for Diagnosis Disconnection Detection Pin Half Connection Complete Connection Terminal for Diagnosis RS 10 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG 711Author Date 2004 LAND CRUISER RM1071U HINT The type of connector is shown in the diagram on the previous page 3 Electrical Connection Check Mechanism This mechanism electrically checks that connectors are connected correctly and completely The electri cal connection check mechanism is designed so that the disconnection detection pin is connected with the diagnosis terminals when the connector housing lock is locked HINT The illustration shows connectors 1 2 and 3 in step 13 Connectors 2 and 3 also have similar mechanism C51019 H20054 Stopper Locking Part Spring Slider Locking Arm Rebounded by Slider Spring Stopper H20055 Z14034 Fig 1 Fig 2 Power Source Safing Sensor Squibs Deceleration Sensor SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 11 712Author Date 2004 LAND CRUISER RM1071U 4 Half connection prevention mechanism If the connector is not completely connected the connector is disconnected due to the spring opera tion to the extent that no continuity exists 5 Connector lock mechanism Locking the connector lock button securely con nects the connector b When the vehicle is involved in a frontal collision in the hatched area Fig 1 and the shock is larger than the pre determined level the SRS is activated automatically A safing 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 which happens when a safing sensor and the deceleration sen sor go on simultaneously When a deceleration force acts on 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 breaking open the steering wheel pad and instrument panel Bag inflation then ends and the bags deflate as the gas is discharged through discharge holes at the bag s rear or side H02763 Outer H02764 Lock of connector is released Disconnection is completed H02768 Outer Outer Connection is completed RS 12 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG 713Author Date 2004 LAND CRUISER RM1071U 14 DISCONNECTION OF CONNECTORS FOR FRONT AIRBAG SENSOR SIDE AND CURTAIN SHIELD AIR BAG SENSOR AND CURTAIN SHIELD AIRBAG SEN SOR a While holding both flank sides of the outer slide the outer in the direction shown by an arrow b Lock of the connectors is released and then disconnect the connectors HINT Be sure to hold both flank sides of the outer If holding the top and bottom sides it will obstruct disconnection 15 CONNECTION OF CONNECTORS FOR FRONT AIR BAG SENSOR SIDE AND CURTAIN SHIELD AIRBAG SENSOR AND CURTAIN SHIELD AIRBAG 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 them in 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 and sound to be fit in can be heard H01584 Slider Disconnection is completed Slider H01585 Slider Slider SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 13 714Author Date 2004 LAND CRUISER RM1071U HINT Do not fit in while holding the outer When fitting in the outer slides Do not touch it 16 DISCONNECTION OF SIDE AIRBAG CONNECTOR a Place a finger on the slider b Slide the slider to release lock c Disconnect the connector 17 CONNECTION OF SIDE AIRBAG CONNECTOR a Align a lock part of male connector and a slider of female connector in the same direction as shown in the illustra tion fit them in without rubbing b 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 and sound to be fit 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 H01586 Slider Disconnection is completed Slider RS 14 SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG 715Author Date 2004 LAND CRUISER RM1071U 18 DISCONNECTION OF CONNECTORS FOR CURTAIN SHIELD AIRBAG ASSEMBLY AND FRONT PAS SENGER AIRBAG ASSEMBLY a Place a finger on the slider b Slide the slider to release lock c Disconnect the connector H01587 Slider Slider SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG RS 15 716Author Date 2004 LAND CRUISER RM1071U 19 CONNECTION OF CONNECTORS FOR CURTAIN SHIELD AIRBAG ASSEMBLY AND FRONT PAS SENGER AIRBAG ASSEMBLY a Align a lock part of male connector and a slider of female connector in the same direction as shown in the illustra tion fit them in without rubbing b 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 and sound to be fit 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 RS0B8 10 H20921 Column Upper Cover Spiral Cable Steering Wheel Lower No 3 Cover Column Lower Cover Steering Wheel Pad Specified torque Steering Wheel Lower No 2 Cover Torx Screw Steering Wheel Torx Screw Lower No 1 Panel Cowl Side Trim LH Front Door Scuff Plate LH Front Door Opening Trim LH Instrument Cluster Finish Panel 8 8 90 78 in lbf 8 8 90 78 in lbf 50 510 37 N m kgf cm ft lbf RS 16 SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE 717Author Date 2004 LAND CRUISER RM1071U STEERING WHEEL PAD AND SPIRAL CABLE COMPONENTS RS0B9 10 SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE RS 17 718Author Date 2004 LAND CRUISER RM1071U REMOVAL HINT For step 1 to 9 refer to page SR 14 1 REMOVE STEERING WHEEL PAD 2 REMOVE STEERING WHEEL 3 REMOVE FRONT DOOR SCUFF PLATE LH 4 REMOVE COWL SIDE TRIM LH 5 REMOVE FRONT DOOR OPENING TRIM LH 6 REMOVE INSTRUMENT CLUSTER FINISH PANEL 7 REMOVE LOWER NO 1 PANEL 8 REMOVE COLUMN UPPER AND LOWER COVERS 9 REMOVE SPIRAL CABLE RS0VI 01 H20912 H20642 H20056 Horn Button Contact Plate H20912 RS 18 SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE 719Author Date 2004 LAND CRUISER RM1071U INSPECTION 1 Vehicle not involved in collision INSPECT SUPPLEMENTAL RESTRAINT SYSTEM a Do a diagnostic system check See page DI 692 b Do a visual check which includes the following item with the steering wheel pad with airbag installed in the ve hicle Check cuts minute cracks or marked discoloration on the steering wheel pad top surface and in the grooved por tion 2 Vehicle involved in collision and airbag is not deployed INSPECT SUPPLEMENTAL RESTRAINT SYSTEM a Do a diagnostic system check See page DI 692 b Do a visual check which includes the following items with the 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 the grooved portion Check cuts and cracks in wire harness and chip ping in connectors Check the deformation of the horn button contact plate on the steering wheel pad with airbag CAUTION For removal and installation of the steering wheel pad see page SR 14 and SR 24 and be sure to follow the correct procedure HINT If the horn button contact plate of the steering wheel pad with airbag is deformed never repair it Always replace the steering wheel assembly with a new one There should be no interference between the steering wheel pad and steering wheel and the clearance should be uniform all the way around when the new steering wheel pad is installed on the steering wheel H20912 SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE RS 19 720Author Date 2004 LAND CRUISER RM1071U 3 Vehicle involved in collision and airbag is deployed INSPECT SUPPLEMENTAL RESTRAINT SYSTEM a Do a diagnostic system check See page DI 692 b Do a visual check which includes the following items with the steering wheel pad with airbag removed from the ve hicle Check that the metal part where the steering wheel pad is to be installed is not deformed Check the damage on the spiral cable connector and wire harness HINT Do not repair the metal part where the steering wheel pad is to be installed even if any deformation is found Always replace the steering wheel assembly with a new one There should be no interference between the steering wheel pad and steering wheel and the clearance should be uniform all the way around when the new steering wheel pad is installed on th

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