SRS 6 (b) Load Limiters: Load limiters are to be used only in airbag equipped vehicles. Load limiters are provided to limit the seat belt loads to a pre-defined value. The load limiter fitted inside the retractor unit is basically a torsion bar Whenever the belt load increases beyond the predefined limit, some length of the belt is released due to twisting of the torsion bar. The activation of the load limiter does not depend on signal from the ECU.
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