SUPPLEMENTARY RESTRAINT SYSTEM (SRS) 6 or mild steel, nylon, plastic etc. After the module assembly is removed from bench vise, the constituent components could be scrapped as per the guidelines/laws for non-hazardous waste materials. 5. SRS POST ACCIDENT PROCEDURE: A. The complete airbag system consists of following components. Those cannot be serviced/repaired, hence should be replaced in case of any damage/deployment irrespective of ‘if found ok’. a) Driver airbag b) Passenger airbag c) Seat belt assembly d) Front impact sensors e) Side impact sensors f) Side airbags g) Side Curtain airbags (Inflatable Curtains) h) Wiring harnesses i) SRS ECU j) Clock spring k) Passenger airbag deactivation switch B. If Frontal Airbags, seat belt pretensioners are deployed during collision, following components must be replaced irrespective of ‘if found ok’. a) Driver airbag b) Passenger airbag c) Front Seat belt assembly RH & LH d) Front impact sensors -LH & RH e) Cockpit (with PAB provision & wiring harness) f) Wiring harness g) SRS ECU h) Clock spring C. If Side Airbags, curtain airbags are deployed during collision, following components must be replaced irrespective of ‘if found ok’. a) Deployed Side airbag(s) b) Deployed Curtain Airbag(s) c) Front Seat belt assembly for the side(s) that deployed d) Side impact sensor(s) for the side that deployed e) SRS ECU f) Wiring harness D. In case of Curtain Airbag deployment following components also needs to be replaced. a) Roof trim b) A –pillar trim c) B – pillar upper and lower trims d) C – pillar trim e) Rear grab handle f) Front grab handle g) All related trim clips h) Sun visor E. After any type of vehicle accident, thoroughly inspect all the airbag system components for any damage or deformation. Replace components as required. Thorough inspection of their mounting locations is also strongly recommended after any accident. F. If any damage or deformation is observed on any airbag system components, these components MUST be replaced even if they are not deployed/ fired in the accident and are showing healthy status when checked. G. Special attention should be paid to mounting surfaces and mounting brackets mainly for SRS ECU, Front impact sensors and Side impact sensors as they are extremely critical for performance of the system. If these cannot be repaired to their original condition, the original panel(s) MUST be replaced. H. In case of damage to SRS wiring harness/wires, they must not be repaired but replaced. I. If steering wheel and steering column are deformed or if the steering column is collapsed in an accident replace these components. J. The accident Vehicle should be inspected to identify component deformation or structural deformations, damages for repair or replacement. e.g. Vehicle front, side, rear structure, seats, underbody components etc. K. Check for DTC’s using diagnostic tool and troubleshoot to clear all the DTC’s detected. WARNING ‘If the SRS warning indicator in the instrument cluster illuminates continuously, it means there is a malfunction in the system, vehicle needs to be diagnosed then take the vehicle to nearest TATA Authorized Ser-vice Center’.
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