WORK NOTICES AND PRECAUTIONS PRECAUTIONS FOR SRS AIRBAG SYSTEM


  1. HANDLING OF A VEHICLE THAT HAS BEEN DAMAGED IN A COLLISION


    1. Refer to the LEXUS Repair Manual for the SRS airbag system inspection procedures.

    2. If impacts are likely to occur to the front airbag sensors, side airbag sensor assemblies, rear airbag sensors, seat position airbag sensor or airbag ECU assembly remove each sensor as necessary beforehand.

    3. Do not allow the front airbag sensors, side airbag sensor assemblies, rear airbag sensors, seat position airbag sensor or airbag ECU assembly to become heated to high temperatures.

    4. Check the wire harnesses and connectors for damage and/or melting, as some areas of the airbags and seat belt pretensioners may heat up to several hundred degrees when they operate.

  2. PRECAUTIONS FOR USING ELECTRIC WELDER


    1. Check the Diagnostic Trouble Codes (DTCs).


      1. If one or more DTCs are displayed:


        • Disconnect the negative (-) terminal cable from the battery.

        • Disconnect all the malfunctioning circuit connectors.

        • Disconnect the airbag ECU assembly connector.

      2. If DTCs are NOT displayed:


        • Inspect for damage to the electric wiring harnesses and connectors.

        • Disconnect the negative (-) terminal cable from the battery.

        • Disconnect the airbag ECU assembly connector.

  3. PARTS LOCATION

    A01Q0JIC02
    *A for LHD *B for RHD
    *1 CURTAIN SHIELD AIRBAG ASSEMBLY LH *2 CURTAIN SHIELD AIRBAG ASSEMBLY RH
    *3 FRONT AIRBAG SENSOR LH *4 FRONT AIRBAG SENSOR RH
    *5 FRONT SEAT OUTER BELT ASSEMBLY LH *6 FRONT SEAT OUTER BELT ASSEMBLY RH
    *7 REAR AIRBAG SENSOR LH *8 REAR AIRBAG SENSOR RH
    *9 REAR SEAT 3 POINT TYPE OUTER BELT ASSEMBLY LH *10 REAR SEAT 3 POINT TYPE OUTER BELT ASSEMBLY RH
    *11 SIDE AIRBAG SENSOR ASSEMBLY LH *12 SIDE AIRBAG SENSOR ASSEMBLY RH
    *13

    NO. 1 ENGINE ROOM RELAY BLOCK

    - MPX-B FUSE

    		 *14

    NO. 2 ENGINE ROOM RELAY BLOCK

    - GAUGE FUSE
    A01Q0JSC03
    *A for LHD - -
    *1 INSTRUMENT PANEL PASSENGER AIRBAG ASSEMBLY *2 FRONT SEAT AIRBAG ASSEMBLY LH
    *3 FRONT SEAT AIRBAG ASSEMBLY RH *4 LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY
    *5 LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY *6 REAR SEAT AIRBAG ASSEMBLY LH
    *7 REAR SEAT AIRBAG ASSEMBLY RH *8 HORN BUTTON ASSEMBLY
    A01Q0DRC02
    *A for RHD - -
    *1 INSTRUMENT PANEL PASSENGER AIRBAG ASSEMBLY *2 FRONT SEAT AIRBAG ASSEMBLY LH
    *3 FRONT SEAT AIRBAG ASSEMBLY RH *4 LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY
    *5 LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY *6 REAR SEAT AIRBAG ASSEMBLY LH
    *7 REAR SEAT AIRBAG ASSEMBLY RH *8 HORN BUTTON ASSEMBLY
    A01Q0A3C01
    *A for LHD *B w/ Airbag Cut Off Switch
    *1 AIRBAG CUT OFF SWITCH CYLINDER SUB-ASSEMBLY *2 AIRBAG ECU ASSEMBLY
    *3 SEAT BELT BUCKLE SWITCH (FRONT SEAT INNER BELT ASSEMBLY) *4 SEAT POSITION AIRBAG SENSOR
    *5 SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY *6 COMBINATION METER ASSEMBLY
    *7 DLC3 *8

    COWL SIDE JUNCTION BLOCK RH

    - AIR BAG FUSE

    - RH ECU-IG FUSE
    *9 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *10 RADIO RECEIVER ASSEMBLY
    *a SRS WARNING LIGHT *b PASSENGER AIRBAG ON/OFF INDICATOR
    A01Q09EC01
    *A for RHD *B w/ Airbag Cut Off Switch
    *1 AIRBAG CUT OFF SWITCH CYLINDER SUB-ASSEMBLY *2 AIRBAG ECU ASSEMBLY
    *3 SEAT BELT BUCKLE SWITCH (FRONT SEAT INNER BELT ASSEMBLY) *4 SEAT POSITION AIRBAG SENSOR
    *5 SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY *6 COMBINATION METER ASSEMBLY
    *7 DLC3 *8

    COWL SIDE JUNCTION BLOCK RH

    - AIR BAG FUSE

    - RH ECU-IG FUSE
    *9 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *10 RADIO RECEIVER ASSEMBLY
    *a SRS WARNING LIGHT *b PASSENGER AIRBAG ON/OFF INDICATOR