Airbag Systems
Inspection Locations After a CollisionA. REPLACEMENT
Replace the following parts when the airbag is deployed.
1. FRONT COLLISION
1. Driver's airbag module
2. Passenger's airbag module
3. Driver's seat belt (Pretensioner)
4. Passenger's seat belt (Pretensioner)
5. Airbag control module
6. Front sub sensor
7. Roll connector
8. Instrument panel (for integrating with passenger's airbag module)
2. SIDE COLLISION
1. Airbag control module
2. Side airbag module (operating side seat backrest)
3. Side airbag sensor (operating side)
4. Curtain airbag module (operating side)
5. Curtain airbag sensor (operating side)
3. INSPECTION OF OTHER PARTS
Check for the following, and replace the damaged parts with new parts.
1. Check the steering shaft for mounting conditions and deflection of front and rear, upward and downward directions, and deflection of front and rear direction with tilt lever released. (After collision, absorbing part of steering shaft may work.)
2. Check the connector of airbag module, pretensioner, etc. for damage, and also check each harness for pinch and connector damage. Replace the harness as a unit if damage is found.
3. Check the seat cushion frame, backrest, seat rail and headrest for deformation, distortion, crack, installing condition and play.
4. For passenger's seat, replace the seat cushion frame assembly with new one if the seat cushion frame or seat rail is deformed or cracked.
5. Perform the system calibration of passenger's seat.
6. Check if the driver's seat position sensor and the driver's and passenger's seatbelt buckle switch operate normally.
B. INSPECTION
If the vehicle is involved in a collision on any side, even if it is a slight collision, be sure to check the following system.
1. DRIVER'S AIRBAG MODULE
1. Check for the following, and replace the damaged parts with new parts.
- Airbag module is cracked or deformed.
- Harness and/or connector is cracked, deformed or open. Harness wire is exposed.
- The module surface is fouled with grease, oil, water or cleaning solvent.
2. When installing a new driver's airbag module, check for the following, and replace the damaged parts with new parts.
- The steering wheel is in the way, making it difficult to install the airbag module.
- The clearance between the driver's airbag module and steering wheel is not constant.
- When steering wheel deformation in axial, upward and downward directions exceed limits.
2. PASSENGER'S AIRBAG MODULE
Check for the following, and replace the damaged parts with new parts.
- Airbag module and instrument panel are cracked or deformed.
- Harness and/or connector is cracked, deformed or open. Harness wire is exposed.
- Mounting bracket is cracked or deformed.
3. SIDE AIRBAG MODULE
Check for the following, and replace the damaged parts with new parts.
- Front seat, airbag module and mounting bracket are damaged or deformed.
- Harness and/or connector is cracked, deformed or open. Harness wire is exposed.
4. CURTAIN AIRBAG MODULE
Check for the following, and replace the damaged parts with new parts.
- Airbag cover is scratched or broken.
- Harness and/or connector is cracked, deformed or open. Harness wire is exposed.
- Mounting bracket and securing clip are cracked or deformed.
5. AIRBAG CONTROL MODULE
Check for the following, and replace the damaged parts with new parts.
- Control module is cracked or deformed.
- Mounting bracket is cracked or deformed.
- Connector is scratched, cracked or deformed.
- Airbag is deployed.
- Side airbag is deployed.
- Curtain airbag is deployed.
6. FRONT SUB SENSOR
If the section of vehicle as shown in the figure is damaged, check for the following and replace the damaged parts with new parts.
- Front sub sensor is cracked or deformed.
- Mounting bracket is cracked or deformed.
- Connector is scratched, cracked or deformed.
- Airbag is deployed.
7. SIDE AIRBAG SENSOR AND CURTAIN AIRBAG SENSOR
If the section of vehicle as shown in the figure is damaged, check for the following and replace the damaged parts with new parts.
- Side airbag sensor and curtain airbag sensor are cracked or deformed.
- Mounting bracket is cracked or deformed.
- Connector is scratched, cracked or deformed.
- Side airbag or curtain airbag is deployed. (operating side)
8. ROLL CONNECTOR
Check for the following, and replace the damaged parts with new parts.
- Combination switch or steering roll connector is cracked or deformed.
9. STEERING SHAFT
Check for the following, and replace the damaged parts with new parts.
- Overall length of steering column should be within specifications.
10. DRIVER'S SEAT
Check the following items and replace the faulty parts with new one.
- Seatbelt buckle switch or seat position sensor body/bracket is cracked or deformed.
- Harness and/or connector is cracked, deformed or open. Harness wire is exposed.
11. PASSENGER'S SEAT
1. Check the following items and replace the faulty parts with new one.
- Seatbelt buckle switch body/bracket for scratch, crack or deformation
- Backrest frame for crack or deformation
- Headrest for deformation or play
CAUTION:
- Never disassemble the following items. Always check with seat cushion frame assembly.
- Seat cushion frame and seat rail for crack or deformation
- Occupant detection system unit or each load sensor for scratch, crack or deformation
- Harness and/or connector is cracked, deformed or open. Harness wire is exposed.
2. After checking the installing condition of passenger's seat, perform the system calibration of occupant detection system.