Convertible Jr27
At the onset of an impact event, each tensioner uses a pyrotechnic device which is triggered simultaneously with the airbags to rapidly retract the seat belts. With the slack removed, the occupant's forward motion in an impact will be reduced as will the likelihood of contacting interior components. After an impact that deploys the airbags, the seat belt tensioner assembly must be replaced.
The Occupant Restraint Controller (ORC) monitors the seat belt tensioner circuit resistance and reports active and stored Diagnostic Trouble Codes (DTC's) if any problem is found.
Once a vehicle has been in an accident, the tensioner must be replaced along with any deployed airbags and broken or damaged parts. Refer to the BODY DIAGNOSTIC PROCEDURES - EXCEPT COUPE article for diagnosis and testing.