Seat Belt Tensioner Inspection

There are 2 methods of determining seat belt tensioner activation. Start by pulling seat belt out and releasing it. If belt normally extends easily to full length, tensioner has not been activated. If either belt sticks, jerks when reeling and unreeling, or fails to reel, both belts must be replaced. If seat belt tensioner activation cannot be determined, turn ignition switch to OFF position. Remove B-pillar inner panel. Insert a steel rod into tensioner tube to establish position of plunger. If plunger position is near bottom of tensioner tube, seat belt tensioner has not deployed. If plunger position is near top of tensioner tube, seat belt tensioner has been activated, and both belts must be replaced.