Airbag - Inspection And Replacement After Collision
COLLISION REPAIR INFORMATIONCRIB110
TITLE: SRS AIRBAG COMPONENT REPLACEMENT
SECTION: ELECTRICAL BULLETIN # 110
MODELS: TOYOTA
DATE:
The SRS Airbag system is an important safety feature of Toyota vehicles. It supplements the vehicle seat belt system by providing additional protection to vehicle occupants in the event of a severe frontal or side collision (it equipped with side airbags).
In order to assure correct system operation it is necessary to replace certain components of the airbag system following a collision. In order to assist technicians in determining which components should be inspected tested or replaced the repair manual information has been organized in the attached matrix and replacement notes.
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, and side airbag sensor assembly should be inspected and diagnostic tests should be performed. Always refer to the Toyota service repair manual for the correct diagnostic and repair procedures.
The attached SRS airbag component replacement information includes:
^ A matrix indicating components requiring replacement inspection or testing after the deployment of the driver and/or passenger SRS airbag.
^ Component replacement notes.
CAUTION: SRS Airbag service work can only be performed AFTER 90 seconds from the time the ignition switch is turned to the "lock" position and the negative (-) terminal cable is disconnected from the battery.
*Some Toyota vehicles are equipped with a Passenger Airbag Manual On-Off Switch, and other Toyota models may have a retrofit passenger airbag switch installed at the dealership. To analyze the condition of the manual on-off switch technicians must follow specific inspection procedures which are outlined in this bulletin. However complete airbag manual on-off switch inspection and repair procedures can be found in vehicle-specific Toyota Repair Manuals.
Note - for all Toyota vehicles
Following all collisions when the SRS does NOT deploy inspect:
^ Steering wheel pad
^ Side airbags and seat frames
^ Front & side airbag sensors
^ Wiring harness and connectors
^ Front passenger airbag assembly
^ Malfunction indicator lamp for correct operation
Component Replacement Notes
Note 1 - Replace the Steering Wheel Pad:
^ If the airbag has been deployed or dropped
^ If the steering wheel pad is diagnosed as needing replacement when troubleshooting or during inspection
Note 2 - Inspect and if necessary replace the Spiral Cable:
^ If the spiral cable is diagnosed as needing replacement when troubleshooting or during inspection
Note 3 - Inspect and if necessary replace the Steering Wheel:
^ If the steering wheel is diagnosed as needing replacement during inspection
Note 4 - Replace the Passenger Airbag assembly:
^ If the passenger airbag has been deployed or dropped
^ If the airbag is diagnosed as needing replacement when troubleshooting or during inspection
Note 5 - Visually inspect and if necessary replace the following items if deformed:
^ Instrument panel and instrument panel reinforcement
^ Glove compartment or glove compartment door
Note 6 - Replace the Front Impact Sensors:
^ If either the driver or passenger airbag has deployed (replace both front impact sensors)
^ If a front airbag sensor is diagnosed as needing replacement when troubleshooting or during inspection
Note 7 - Replace the Airbag Sensor Assembly:
^ If any airbag has been deployed in a collision or the airbag sensor assembly has been dropped or is diagnosed as needing replacement when troubleshooting
Note 8 - Inspect and if necessary replace the Wire Harness or Connector:
^ If any part of the SRS wire harness or any connector is diagnosed as needing replacement when troubleshooting or during inspection
Note 9 - Replace the:
^ Side Impact Airbag if it has been deployed dropped or is diagnosed as needing replacement when troubleshooting or during inspection
^ Seat cover if it has cuts and/or frayed seams or is diagnosed as needing replacement during inspection
^ Seat frame if it is bent or has become damaged
Note 10 - Replace the Side Impact Sensors:
^ If the side airbag assembly has been deployed dropped or is diagnosed as needing replacement when troubleshooting or during inspection
Note 10 - Replace the Side and Curtain Shield Impact Sensors:
^ If either the side or curtain shield airbag assembly have been deployed dropped or are diagnosed as needing replacement when troubleshooting or during inspection
Note 11 - In the event of driver or passenger airbag deployment replace all seatbelt Pretensioners.
Note 12 - Replace the:
^ Curtain Shield Airbag if it has been deployed dropped or is diagnosed as needing replacement when troubleshooting or during inspection
^ Visually inspect and if necessary replace the following items if deformed or cracked:
- Headliner and/or interior trim panels
- Body components where the Curtain Shield Airbag is mounted