ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

501-20B Supplemental Restraint System > < Safety Belt Buckle and Pretensioner
Safety Belt System - Safety Belt System C-MAX 2003.75 (06/2003-)
Description and Operation

System overview

WARNING:
WARNING:All safety belt components including retractors, buckles, child safety seat tether brackets and attaching hardware in use during a collision must be removed and new components installed. New safety belt components should also be installed where safety belts not in use during a collision, are inspected and found to be damaged or operate incorrectly. Failure to follow these instructions may result in personal injury.

WARNING:
WARNING:All vehicles equipped with a passenger air bag have a WARNING sticker attached to the instrument panel PROHIBITING the use of rear facing child seats in the front seating positions. Failure to follow this instruction may result in personal injury.
CAUTION:
CAUTION:Do not attempt to repair or lubricate the retractor / buckle mechanisms or modify the belts.

The safety belt system utilizes three-point lap and diagonal safety belts in all seat positions.

The front safety belt retractors incorporate a load limiting device, which allows progressive payout of additional safety belt webbing when the force exerted exceeds a predetermined limit.

The front safety belt upper anchors are connected to safety belt shoulder height adjusters mounted in the B-pillar.

The front seat safety belt buckles incorporates pretensioners and on the driver side a safety belt buckle switch. Both the safety belt buckle switch and the safety belt buckle pretensioner are connected to the air bag control module. The air bag control module monitors both circuits and if a fault is detected will illuminate the air bag warning indicator located in the instrument cluster. The belt pretensioner is not deployed in any side, rear or minor frontal collisions.

When the vehicle speed exceeds 7 km/h (4 mph) and the driver safety belt is unfastened, the safety belt minder will provide the driver with an audible and visual warning. The warning will continue for up to ten minutes by sounding a chime and illuminating a warning indicator located in the instrument cluster.

The safety belt buckle pretensioners have a lower deployment threshold than that required by the air bags. Hence it is possible during a minor collision, which exceeds the deployment threshold, that only the safety belt pretensioners will deploy.

The additional safety belt minder feature can be disabled. For additional information, refer to Section 413-09.

The rear centre seat belt retractor is fitted in the roof and is engaged into the smaller belt buckle to the right of the centre seat and can be left there when the seat is not in use. The larger chrome buckle is engaged to the standard buckle to the left of the seat.

Rear seat safety belt retractors and buckles are of the conventional type.

501-20B Supplemental Restraint System > < Safety Belt Buckle and Pretensioner