SECTION 501-20A: Safety Belt System
2014 Mustang Workshop Manual
DESCRIPTION AND OPERATION
Procedure revision date: 01/07/2013

Safety Belt System

 WARNING: All safety belt components must be inspected and corrected as part of any collision repair. Inspect all safety belt components as prescribed by Safety Belt Inspection and Repair After a Collision found in Section 501-20A General Procedures of this manual. Failure to follow this instruction may result in incorrect operation of the safety belt system and increase the risk of serious personal injury or death in a crash.

When installing any new active occupant restraint components, use only Ford-specified service parts.

The active restraint system consists of the following serviceable items:

The rear child safety seat tether anchors, at both seating positions, are welded to the underside of the package tray and are not serviceable.

 

Safety Belt Retractors

The safety belt retractors consist of the following features:

Safety Belt Retractor and Pretensioner

The pretensioner is a pyrotechnic device that deploys when activated by the Restraints Control Module (RCM) to remove excess safety belt webbing from the shoulder and lap safety belt in the event of an impact. If a deployment of the safety belt retractor and pretensioners occurs, a new assembly must be installed. Refer to Safety Belt Retractor and Pretensioner in this section.

Each front safety belt shoulder guide includes a 2-position safety belt presenter arm (coupe only) that rotates rearward to allow for occupant rear seat access (stowed position) and forward for front seat occupant use (worn position).

For safety belt retractor and pretensioner diagnostic and disposal information, refer to Section 501-20B .

Emergency Locking Retractor (ELR)

Every safety belt retractor is a 3-point restraint with the ELR feature. The safety belt retractor is designed to allow the occupant freedom of movement in normal operation. The ELR is a vehicle sensitive feature designed to activate and lock the safety belt webbing when braking hard, cornering hard or in an impact of approximately 8 km/h (5 mph). The ELR feature helps to reduce the forward movement of the driver and passengers. Refer to the appropriate Functional Test procedure in Safety Belt System in this section.

Automatic Locking Retractor (ALR)

The ALR feature does not allow freedom of movement. The ALR mode is used when locking a child seat in an outboard seating position or when a tight belt fit is desired. The ALR mode is automatically activated when the safety belt webbing is fully extracted from the retractor and then allowed to retract. As the safety belt webbing is retracted back onto the spool, an audible clicking sound is made indicating the safety belt retractor is in ALR mode and the safety belt webbing will not pull back out of the safety belt retractor. To disengage the ALR mode, allow the safety belt webbing to fully retract back onto the spool. The ALR mode is disengaged when the webbing is free to extract and retract back into the retractor. Refer to the appropriate Functional Test procedure in Safety Belt System in this section.

Belt Tension Sensor (BTS)

The safety BTS is part of the passenger front outboard safety belt and retractor assembly and is not serviced separately. The safety BTS is located at the safety belt anchor point and operates as part of the Occupant Classification Sensor (OCS) system on the front passenger seat. To diagnose the BTS or OCS system, refer to Section 501-20B .

 

Safety Belt Buckles

The front seat safety belt buckles are attached to the front seat tracks and can be serviced separately.

The rear seat safety belt buckles are attached to the floor pan behind the rear seat cushion and can be serviced separately.

 

Child Safety Seat Restraints

The child safety seat restraints include the following items:

If a child safety seat was in use during a collision, inspect the vehicle portion of the system for damage. Inspect the vehicle structure at the child safety seat component mounting areas and repair any damage to the original production configuration.

 

Lower Anchors and Tethers for Children

The lower anchors and tethers for children system is a standardized and uniform attachment system for installing child safety seats in passenger seating locations. The lower anchors and tethers for children system-equipped child safety seats have 2 lower attachments that connect to 2 attachment points (6-mm wires) that protrude from the bight-line between the seat cushion and seat backrest.

If any of the lower anchors and tethers for children attachment points (6-mm wires) are damaged, a new component(s) must be installed. Refer to Child Safety Seat Tether Anchor — LATCH in this section.