Handling Deployed SRS Systems After A Collision
This method is divided into 3 sections:
- Components that must always be replaced
- Components that must be checked and replaced if necessary
- Additional information.
The different sections can be found in separate columns in the table below.
| Components that must always be replaced |
Components that must be checked and replaced if necessary |
Additional information. |
After activation of the driver's side and passenger side airbags (SRS) and/or seat belt tensioners:
- Replace all deployed airbags
- Replace all deployed seat belt tensioners, including end mountings/quickfix
- Replace all the seat belt locks belonging to the deployed seat belt tensioner
- Replace the deployed pyrotechnic steering column with a new one..
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Where there is visible damage (deformation, cracks or material that has melted):
- Replace the steering wheel
- Replace the contact reel on the driver's airbag
- Replace the dashboard if the passenger airbag has deployed
- Replace the windshield and its adhesive
- Replace the sun roof
- Replace all damaged wiring
- Replace the Supplemental Restraint System Module (SRS), see section "Additional information"
- Replace the WHIPS mechanism
- Replace the loudspeakers in the dashboard
- Replace the panels under the dashboard
- Replace steering column
- Remove any broken glass from the windshield from the ventilation ducts.
- The integrated booster cushion must always be replaced with a new one if anyone, adult or child, has been sitting on the cushion during an accident of the type where the relevant seat belt tensioner has been triggered. This applies regardless of the cushion position, folded up or down.
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Important:
- When one or more airbags has deployed, the seat belt tensioners in the rear seat (and in the third row rear seat) are automatically activated. For this reason, these seat belt tensioners, the seat belt buckles and the end mountings must be replaced
- When one or more air bags have deployed, check the seat belt pre-tensioners on the front seats according to: VIDA/Diagnostics/Vehicle communication/SRS/Advanced/Checking seat belt-related components in the event of a collision. Activation of the pre-tensioner function depends on whether the seatbelt is used or not when the air bag deployed.
- Supplemental Restraint System Module (SRS) must always be replaced:
- diagnostic trouble codes (DTCs) cannot be erased
- the control module has suffered mechanical damage
- there is damage to the car floor in the area around the control module. The damage can weaken the mechanical mountings for the control module
- If the car is equipped with Volvo On Call, both the collision cable and the auxiliary battery must be checked
- Diagnostic trouble code (DTC) SRS-112 must not be erased during the warranty period. The sensor module should be returned to Volvo according to standard procedures
- It should also be possible to drive the car so that the function of the steering is guaranteed.
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After a seat airbag (SIPS) has deployed:
- Replace all deployed airbags
- Replace the upholstery, foam and impact protection on the seats.
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After a seat airbag (SIPS) has deployed:
- Check that the seat and the backrest frame on the seat are straight. This may be deformed after deployment of the airbag
- Replace all damaged cable harnesses.
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After activation of the inflatable curtain (IC):
- Replace all deployed inflatable curtains
- Replace all damaged components by the inflatable curtain, e.g.:
- the A panels
- the B panels
- the C panels
- the D panels
- the headlining.
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After activation of the inflatable curtain (IC):
- Replace the collision sensors on the B and C-posts
- Replace all damaged mounting elements for the inflatable curtain and the panels
- Replace all damaged cable harnesses.
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After activation of the inflatable curtain (IC):
- Following a heavy frontal collision, it is possible that the front part of the A-post for the inflatable curtain may be damaged. Check this.
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After whiplash system (WHIPS) deployment:
- Replace the WHIPS mechanism.
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After whiplash system (WHIPS) deployment:
- Check that the seat has no other visible damage.
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After whiplash system (WHIPS) deployment:
- Note that the WHIPS system is available in 2 variants.
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