²one or more impact and safing
sensors,
²a readiness light and tone,
²driver and front passenger
safety belt buckle pretensioners
²and the electrical wiring which
connects the components.
The diagnostic module monitors its
own internal circuits and the
supplemental air bag electrical
system readiness (including the
impact sensors), the system wiring,
the air bag system readiness light,
the air bag back up power and the
air bag ignitors.
Determining if the system is
operational
The SRS uses a readiness light in
the instrument cluster or a tone to
indicate the condition of the
system. Refer to theAir bag
readinesssection in the
Instrumentationchapter. Routine
maintenance of the air bag is not
required.
A difficulty with the system is
indicated by one or more of the
following:
²The readiness light will either
flash or stay lit.
²The readiness light will not
illuminate immediately after
ignition is turned on.
²A group of five beeps will be
heard. The tone pattern will
repeat periodically until the
problem and light are repaired.
com_determing_operational.01
Seating and safety restraints
57
Using snow tires and chains
Snow tires must be the
same size and grade as the
tires you currently have on your
vehicle.
The tires on your vehicle have
allÐweather treads to provide
traction in rain and snow. However,
in some climates, using snow tires
and chains may be necessary. Ford
offers tire cables as a Ford
approved accessory and
recommends use of these or their
equivalents. See your dealer or
qualified service technician for
more information on tire cables for
your vehicle. Follow these
guidelines when using snow tires
and chains:
²Install chains securely, verifying
that the chains do not touch any
wiring, brake lines or fuel lines.
²Install the chains on the rear
tires only.
²Drive cautiously. If you hear the
chains rub or bang against the
vehicle, stop and retighten
them. If this does not work,
remove the chains to prevent
vehicle damage.
²Avoid overloading your vehicle.
²Remove the tire chains when
they are no longer needed. Do
not use chains on dry roads.
²The suspension insulation and
bumpers will help prevent
vehicle damage. Do not remove
Maintenance and care
156
