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8O - 38
RESTRAINTS
SEAT BELT TENSIONER (Continued)
Removing excess slack from the front seat belts not
only keeps the occupants properly positioned for an
airbag deployment following a frontal impact of the
vehicle, but also helps to reduce injuries that the
occupant might experience in these situations as a
result of harmful contact with the steering wheel,
steering column, instrument panel and/or windshield.
Also, the seat belt tensioner torsion bar that the
retractor spool rides upon is designed to deform in
order to control the loading being applied to the occu-
pants by the seat belts during a frontal impact, fur-
ther reducing the potential for occupant injuries.
The ORC monitors the condition of the seat belt
tensioners through circuit resistance, and will illumi-
nate the airbag indicator in the instrument cluster
and store a Diagnostic Trouble Code (DTC) for any
fault that is detected. For proper diagnosis of the
seat belt tensioners, a DRBIII scan tool is required
and the appropriate Body Diagnostic Procedures
manual.
CS
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