1998 FORD MUSTANG ECU

High beams
Illuminates when the
high beam headlamps
are turned on.
Safety belt
Momentarily illuminates
when the ignition is
turned to the ON
position to remind you
to fasten your safety belts. For more information,
refer to theSeating and safety restraintschapter.
Charging system
Illuminates when the
ignition is turned to
the ON position and
the engine is off. The
light also illuminates when the battery is not
charging properly, requiring electrical system
service.
Air bag readiness
Momentarily
illuminates when the
ignition is turned ON.
If the light fails to
illuminate, continues to flash or remains on, have
the system serviced immediately.
Anti-theft system
Refer toSecuriLocky
passive anti-theft
systemin theControls
and featureschapter.
AIR
BAG
THEFT
Instrumentation
7

Service engine soon
Your vehicle is
equipped with a
computer that monitors
the engine's emission
control system. This
system is commonly known as the On Board
Diagnostics System (OBD II). The OBD II system
protects the environment by ensuring that your
vehicle continues to meet government emission
standards. The OBD II system also assists the
service technician in properly servicing your vehicle.
TheService Engine Soonindicator light illuminates
when the ignition is first turned to the ON position
to check the bulb. If it comes on after the engine is
started, one of the engine's emission control systems
may be malfunctioning. The light may illuminate
without a driveability concern being noted. The
vehicle will usually be drivable and will not require
towing.
What you should do if the Service Engine Soon
light illuminates
Light turns on solid:
This means that the OBD II system has detected a
malfunction.
Temporary malfunctions may cause yourService
Engine Soonlight to illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may
misfire or run poorly.)
2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been properly installed
and securely tightened.
These temporary malfunctions can be corrected by
filling the fuel tank with good quality fuel and/or
properly installing and securely tightening the gas
cap. After three driving cycles without these or any
other temporary malfunctions present, theService
Engine Soonlight should turn off. (A driving cycle
SERVICE
ENGINE
SOON
Instrumentation
8

5. Open both top clamps before the top meets the
windshield header
6. Continue to use the top motor to raise the top
until it has reached the fully closed position flush to
the header.
7. The two pins under the forward edge of the top
should seat themselves in the matching holes in the
header.
8. To fasten both clamps securely, push the clamp
handles into the header on the top until they are
flush with the header. Pulling down on the header at
the center grip while closing the latches may assist
in fastening the clamps.
9. Raise the front and rear side windows.
10. Disengage the parking brake.
REMOTE ENTRY SYSTEM
The remote entry system allows you to:
²lock or unlock all vehicle doors without a key.
²open the trunk.
²activate the panic alarm.
²confirms that the vehicle is locked with a short
ªbeepº from the horn.
The remote entry features only operate with the
ignition in the OFF position.
Unlocking the doors
Press this control to
unlock the driver's
door. The interior
lamps will illuminate.
With the all-door
remote entry system,
press the control a
second time within
three seconds to unlock the passenger door.
Controls and features
56

SECURILOCKYPASSIVE ANTI-THEFT SYSTEM
The SecuriLockypassive anti-theft system provides
an advanced level of vehicle theft protection. Your
vehicle's engine can only be started with the two
special SecuriLockyelectronically coded keys
provided with your vehicle. Each time you start your
vehicle, the SecuriLockykey is read by the
SecuriLockypassive anti-theft system. If the
SecuriLockykey identification code matches the
code stored in the SecuriLockyanti-theft system,
the vehicle's engine is allowed to start. If the
SecuriLockykey identification code does not match
the code stored in the system or if a SecuriLocky
key is not detected (vehicle theft situation), the
vehicle's engine will not operate.
The SecuriLockypassive anti-theft system is not
compatible with aftermarket remote start systems.
Use of these systems may result in vehicle starting
problems and a loss of security protection. Large
metallic objects or devices such as the Mobil
Speedpassyon the same key ring as your
SecuriLockykey may cause vehicle starting
problems. These objects and devices cannot damage
the SecuriLockykey, but can cause a momentary
problem if they are too close to the key when
starting the engine. If a problem occurs. turn
ignition off and restart the engine with all other
objects on the key ring held away from the
SecuriLockyignition key.
Spare SecuriLockykeys can be purchased from
your dealership and programmed to your
SecuriLockypassive anti-theft system. Refer to
Programming spare SecuriLockykeysfor more
information.
If one or both of your SecuriLockykeys are lost or
stolen and you want to ensure the lost or stolen key
will not operate your vehicle, bring your vehicle and
all available SecuriLockykeys to your dealership for
reinitialization.
Controls and features
60

Theft indicator
The theft indicator on the instrument cluster will
operate as follows:
²When the ignition is OFF, the theft indicator will
flash briefly every 2 seconds to indicate the
SecuriLockysystem is protecting your vehicle.
²
When the ignition is turned to RUN or START, the
theft indicator will light for 3 seconds and then go
out. If the theft indicator stays on for an extended
period of time or flashes rapidly, have the system
serviced by your dealership or a qualified technician.
Programming spare SecuriLockYkeys
Spare SecuriLockykeys can be purchased from
your dealership and programmed to your
SecuriLockypassive anti-theft system (up to a total
of 8 keys). Your dealership can program your new
SecuriLockykey(s) to your vehicle or you can do it
yourself using the following simple procedure. To
program a new SecuriLockykey yourself, you will
need two previously programmed SecuriLockykeys
(keys that already operate your vehicle's engine). If
two previously programmed SecuriLockykeys are
not available (one or both of your original keys were
lost or stolen), you must bring your vehicle to your
dealership to have the spare SecuriLockykey(s)
programmed.
Procedure to program spare SecuriLockYkeys
to your vehicle
New SecuriLockykeys must have the correct
mechanical key cut for your vehicle.
Conventional (non-SecuriLocky) keyscannotbe
programmed to your vehicle.
You will need to have two previously programmed
SecuriLockykeys and the new unprogrammed
SecuriLockykey readily accessible for the
procedure. Please read and understand the entire
procedure before you begin.
Controls and features
61

1. Insert the first previously programmed
SecuriLockykey into the ignition and turn the
ignition from OFF to RUN (maintain ignition in RUN
for at least one second).
2. Turn ignition to OFF and remove the first
SecuriLockykey from the ignition.
3. Within five seconds of turning the ignition to OFF,
insert the second previously programmed
SecuriLockykey into the ignition and turn the
ignition from OFF to RUN (maintain ignition in RUN
for at least one second but no more than 5 seconds).
4. Turn the ignition to OFF and remove the second
SecuriLockykey from the ignition.
5. Within 10 seconds of turning the ignition to OFF,
insert the unprogrammed SecuriLockykey (new
key) into the ignition and turn the ignition from OFF
to RUN (maintain ignition in RUN for at least one
second). This step will program your new
SecuriLockykey.
6. To program additional SecuriLockykey(s), repeat
this procedure from step 1.
If the programming procedure was successful, the
new SecuriLockykey(s) will start the vehicle's
engine. The theft indicator (located on the
instrument cluster) will light for three seconds and
then go out.
If the programming procedure was not successful,
the new SecuriLockykey(s) will not operate the
vehicle's engine. The theft indicator will flash on and
off. Wait at least one minute and then repeat the
procedure from step 1. If failure repeats, bring your
vehicle to your dealership to have the spare
SecuriLockykey(s) programmed.
Controls and features
62

Combination lap and shoulder belts
1.
Insert the belt tongue
into the proper buckle
(the buckle closest to
the direction the tongue
is coming from) until
you hear a snap and feel
it latch. Make sure the
tongue is securely
fastened in the buckle.
2. To unfasten, push
the release button and
remove the tongue
from the buckle.
The front and rear outboard safety restraints in the
vehicle are combination lap and shoulder belts. The
front and rear seat passenger outboard safety belts
have two types of locking modes described below:
Vehicle sensitive mode
The vehicle sensitive mode is the normal retractor
mode, allowing free shoulder belt length adjustment
to your movements and locking in response to
vehicle movement. For example, if the driver brakes
suddenly or turns a corner sharply, or the vehicle
receives an impact of 8 km/h (5 mph) or more, the
combination safety belts will lock to help reduce
forward movement of the driver and passengers.
Automatic locking mode
In this mode, the shoulder belt is automatically
pre-locked. The belt will still retract to remove any
slack in the shoulder belt.
The automatic locking mode is not available on the
driver safety belt.
Seating and safety restraints
68

When installing a child safety seat:
²Review and follow
the information
presented in theAir
Bag Supplemental
Restraint System
section in this
chapter.
²Use the correct
safety belt buckle for that seating position.
²Insert the belt tongue into the proper buckle until
you hear a snap and feel it latch. Make sure the
tongue is securely fastened in the buckle.
²Keep the buckle release button pointing up and
away from the safety seat, with the tongue
between the child seat and the release button, to
prevent accidental unbuckling.
²Place seat back in upright position.
²Put the safety belt in the automatic locking mode.
Refer toAutomatic locking mode(passenger
side front and outboard rear seating positions)(if
equipped).
Ford recommends the use of a child safety seat
having a top tether strap. Install the child safety seat
in a seating position which is capable of providing a
tether anchorage. For more information on top
tether straps, refer toAttaching safety seats with
tether straps.
Carefully follow all of the manufacturer's
instructions included with the safety seat
you put in your vehicle. If you do not install and
use the safety seat properly, the child may be
injured in a sudden stop or collision.
Seating and safety restraints
79