child lock FORD MUSTANG 2003 Workshop Manual
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Page 3979 of 4378

DESCRIPTION AND OPERATION
Safety Belt System
WARNING: All safety belt assemblies include retractors, buckles, front seat belt buckle
support assemblies (slide bar, if so equipped), shoulder belt height adjuster (if equipped), child
safety seat tether bracket assemblies (if equipped) and attaching hardware should be inspected
after any collision. Ford recommends new safety belt assemblies be installed unless a qualified
technician finds the assemblies show no damage and operate correctly. Safety belt assemblies
not in use during a collision should also be inspected and new assemblies installed if either
damage or incorrect operation is noted.
WARNING: Each seating position in the vehicle has a specific safety belt assembly which
consists of one buckle and one tongue. The safety belt assembly is designed to be used as a
pair and is not to be used across seating positions.
A continuous- loop, single retractor active restraint system is used on this vehicle for both the front
seats and the rear seats.
Safety Belt, Lap/Shoulder— Dual Locking Mode
WARNING: Rear- facing infant seats should never be placed in the front seats. Failure to
follow these instructions may result in personal injury.
The dual locking mode retractor on the shoulder belt portion of the combination lap/shoulder safety belt
for the front seat passenger and rear seat outboard passengers operates in two ways:
1. In the vehicle- sensitive (emergency locking) mode, the shoulder belt retractor will allow the
occupant freedom of movement, locking tightly only on hard braking, hard cornering or impacts
of approximately 8 km/h (5 mph) or more. The front and rear outboard safety belt retractors can
also be made to lock by pulling/jerking on the belt.
2. In the automatic locking mode, the shoulder belt retractor locks automatically and remains locked when the combination lap/shoulder safety belt is buckled, restricting occupant
movement. This mode provides tight lap/shoulder belt fit on the occupant and on a child safety
seat or infant carrier installation restraint.
When the combination lap/shoulder belt is unbuckled and allowed to retract completely, the retractor
switches to the vehicle sensitive (emergency) locking mode.
The automatic locking mode must be used when installing a child safety seat on the front passenger
seat and rear outboard seats where dual locking retractors are provided.
Safety Belt Warning System
The safety belt warning indicator illuminates and a chime sounds to remind the occupants to fasten
their safety belts.
The conditions of operation for the safety belt warning indicator and chime are as follows:
zIf the driver safety belt is not buckled before the ignition switch is turned to ON, then the safety
belt warning indicator illuminates for one to two minutes and the warning chime sounds for four
to eight seconds.
SECTION 501-
20A: Safety Belt System 2003 Mustang Workshop Manual Klj . 1 ba
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Functional Test III (System Road Test Inspection)
1. NOTE: If the RH or the rear safety belts are to be tested, the assistance of a passenger is
required.
Fasten the safety belts and proceed to a safe area.
2. Attain a speed of 8 km/h (5 mph).
3. WARNING: The driver and passenger must be prepared to brace themselves if the
retractor does not lock.
Test the safety belts. 1. Grasp the shoulder harness and prepare to lean forward.
2. WARNING: The maximum brake application should be on dry concrete or
equivalent hard surface, NEVER on wet pavement or gravel.
WARNING: The driver and passenger must be prepared to brace themselves
in the event the retractor does not lock.
Make a maximum brake application without a skid.
3. NOTE: Do not jerk on the safety belt webbing when carrying out this test. Lean forward slightly when the brake application is made.
4. The safety belts should lock up with minimum webbing extension.
5. If there is a lockup of both shoulder straps, the safety belt assemblies are functioning correctly. Should either or both retractors fail to lock up at the 8 km/h (5 mph) speed, repeat the test at a
constant 24 km/h (15 mph) speed. (This test must be carried out with the assistance of a RH
front or rear passenger if the RH front or rear safety belts are to be tested).
6. CAUTION: Before installing a new safety belt assembly, inspect the mounting area
for damage and distortion. If the retractor of a new safety belt assembly has been bolted
into a damaged or distorted mounting area, the retractor could be warped and may not
function. If this is the case, remove the retractor and return the sheet metal to the
original configuration and install another complete safety belt assembly.
If the retractors do not lock up at the 24 km/h (15 mph) test, return the vehicle for service of
malfunctioning safety belts.
Functional Test IV (Automatic Locking Retractor) WARNING: After any vehicle collision, the safety belt system at all outboard seating
positions (except driver, which has no "automatic locking retractor" feature) must be checked
by a qualified technician to verify that the "automatic locking" feature for child seats is still
functioning correctly, in addition to other checks for correct safety belt system function. A new
safety belt and retractor assembly must be installed if the safety belt assembly's "automatic
locking retractor" feature or any other safety belt function is not operating correctly when
checked according to the procedures in the workshop manual. Failure to install a new safety
belt and retractor assembly could increase the risk of injury in collisions.
1. Position the seat back into the full up position. Klj . 3 ba
42003 Mustang Workshop Manual
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