1997 FORD EXPLORER wiring

The air bags inflate and deflate
rapidly upon activation.
After air bag deployment, it is
normal to notice a smoke-like,
powdery residue or smell the burnt
propellant. This may consist of
cornstarch, talcum powder (to
lubricate the bag) or sodium
compounds (e.g., baking soda) that
result from the combustion process
that inflates the air bag. Small
amounts of sodium hydroxide may
be present which may irritate the
skin and eyes, but none of the
residue is toxic.
Several air bag system
components get hot after
inflation. Do not touch them
after inflation.
If the air bag is inflated,
the air bag will not
function again and must be
replaced immediately.Ifthe
air bag is not replaced, the
unrepaired area will increase the
risk of injury in a collision.
The SRS consists of:
²driver and passenger air bag
modules (which include the
inflators and air bags),
²one or more impact and safing
sensors,
²a readiness light and tone
²and the electrical wiring which
connects the components.
Seating and safety restraints
92

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.
If any of these things happen, even
intermittently, have the SRS
serviced at your dealership or by a
qualified technician immediately.
Unless serviced, the system may
not function properly in the event
of a collision.
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Seating and safety restraints
93

Trailer weight range
The range is between zero and the
maximum trailer weight rating
found in this chapter.
Using trailer brakes
Use electric brakes or manual,
automatic or surge type hydraulic
brakes that meet Federal and local
regulations. Install and adjust
brakes according to the
manufacturer's instructions.
Do not connect a trailer's
hydraulic brake system
directly to your vehicle's brake
system. Your vehicle may not
have enough braking power and
your chances of having a
collision greatly increase.
Using safety chains
Always connect the trailer's safety
chains to the vehicle. To connect
the chains, cross the chains under
the trailer tongue and attach to the
vehicle frame or hook retainers
(not the bumper). Make sure there
is enough slack to allow the vehicle
to turn corners.
Using trailer lamps
See your local trailer retailer or
rental agency for proper
instructions and equipment for
hooking up trailer lamps.
Do not hook the trailer lights
directly into the vehicle's wiring
system. If the trailer lamps are not
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Driving
143

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
all-weather treads to provide
traction in rain and snow. However,
in some climates, using snow tires
and chains may be necessary. Ford
offers snow chains 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 chains 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
Maintenance and care
201