1998 CHEVROLET BLAZER ECU

Downloaded from www.Manualslib.com manuals search engine If you have trouble programming the universal
transmitter, make sure that you have followed the
directions exactly as described and that the battery in the
hand-held transmitter is not dead. If you still cannot
program it, rotate the hand-held transmitter end over end
and
try again. The universal transmitter may not work
with older garage door openers that do not meet current
Federal Consumer Safety Standards. If you cannot
program the transmitter after repeated attempts, consult
your
GM dealer.
Be sure to keep the original hand-held transmitter
in case you need to erase and reprogram the
universal transmitter.
Operating the Transmitter
Press and hold the appropriate button on the universal
transmitter. The red light comes on while the signal is
being transmitted.
Note that the effective transmission range of the
universal transmitter may differ from the hand-held
transmitter and from one channel to another.
Training a Garage Opener with a “Rolling
If you programmed the universal transmitter, but the
garage door will not open, and if your garage door opener
was manufactured after 1995, your garage door may have
a
security feature that changes the “code” of your garage
door opener every time it is opened or closed.
To determine if your garage door opener has this
“rolling code” feature, press the appropriate button
on
the universal transmitter that was programmed. If the
red light flashes rapidly for one to two seconds, then
turns solid, your garage door opener has this feature.
To program
a garage door opener with the rolling code
feature, do the following:
1.
2.
3.
Program your hand-held transmitter to the universal
transmitter by following the steps provided under “Programming the Transmitte?’ earlier
in this section.
Remove the cover panel from the garage door opener
receiver.
It is located near the garage door opener motor.
Locate the training button on the garage door opener
receiver. The exact location and color will vary
among brands.
2-62

Downloaded from www.Manualslib.com manuals search engine A reading in the low pressure zone may be caused by a
dangerously low oil level or other problems causing low
oil pressure.
Don’t keep driving
if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire.
You or others could be burned.
Check your oil
as soon as possible and have your
vehicle serviced.
I NOTICE:
Security Warning Light
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
SECURITY
This light will come on
briefly when
you turn the
key toward START. The
light will stay
on until the
engine starts.
If the light flashes, the Passlock
system has entered a
tamper mode. If the vehicle fails
to start, see “Passlock”
in the Index.
If the light comes on continuously while driving and
stays
on, there may be a problem with the Passlock
system. Your vehicle will not be protected bv Passlock,
and you should see your dealer.
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Downloaded from www.Manualslib.com manuals search engine Theft-Deterrent Feature (If Equipped)
THEFTLOCK@ is designed to discourage theft of your
radio. It works by using a secret code to disable all radio
functions whenever battery power is removed. Your
audio system is equipped with THEFTLOCK if
THEFTLOCK is displayed
on the front of the radio.
The THEFTLOCK feature for the radio may be used or
ignored. If ignored, the system plays normally and the
radio is not protected by the feature. If THEFTLOCK is
activated, your radio will not operate if stolen.
When THEFTLOCK is activated, the radio will display
LOC
to indicate a locked condition anytime battery
power has been interrupted. If your battery loses power
for any reason,
you must unlock the radio with the secret
code before it will operate.
Activating the Theft-Deterrent Feature
The instructions which follow explain how to enter your
secret code to activate the THEFTLOCK system. It is
recommended that
you read through all nine steps
before starting the procedure.
NOTE: If
you allow more than 15 seconds to elapse
between any steps, the radio automatically reverts to
time and you must start the procedure over at Step 4. 1.
2.
3.
4.
5.
6.
7.
8.
9.
Write down any
three or four-digit number from
000 to 1999 and keep it in a safe place separate from
the vehicle.
Turn the ignition to ACCESSORY or RUN.
Turn the radio off.
Press the 1 and
4 buttons together. Hold them down
until
--- shows on the display. Next you will use the
secret code number which
you have written down.
Press MN and
000 will appear on the display.
Press MN again to make the last two digits agree
with your code.
Press HR to make the first one or two digits agree
with your code.
Press AM-FM after
you have confirmed that the
code matches the secret code
you have written down.
The display will show REP to let
you know that you
need to repeat Steps 5 through 7 to confirm your
secret code.
Press AM-FM and this time the display will show
SEC to let you know that your radio is secure. The
indicator by the volume control will begin flashing
when the ignition is turned
off.
3-26

Downloaded from www.Manualslib.com manuals search engine Unlocking the Theft-Deterrent Feature After a
Power
Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. LOC appears when the ignition is on.
2. Press MN and 000 will appear on the display.
3. Press MN again to make the last two digits agree
4. Press HR to make the first one or two digits agree
with your
code.
with your code.
code matches the secret code you have written down.
The display will show SEC, indicating the radio is
now operable and secure.
5. Press AM-FM after you have confirmed that the
If you enter the wrong code eight times, INOP will
appear on the display. You will have
to wait an hour
with the ignition on before you can
try again. When you
try again, you will only have three chances to enter the
correct code before INOP appears.
If you lose or forget your code, contact your dealer.
Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition to ACCESSORY or RUN.
2.
Turn the radio off.
3. Press the 1 and 4 buttons together. Hold them down
until SEC shows on the display.
4. Press MN and
000 will appear on the display.
5. Press MN again to make the last two digits agree
with your code.
6. Press HR to make the first one or two digits agree
with your code.
code matches the secret code you have written down.
The display will show
---, indicating that the radio is
no longer secured.
7. Press AM-FM after you have confirmed that the
If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured until the correct
code is entered.
When battery power is removed and later applied to a
secured radio, the radio won’t turn on and
LOC will
appear on the display.
3-27

Downloaded from www.Manualslib.com manuals search engine To unlock a secured radio, see “Unlocking the
Theft-Deterrent Feature After
a Power Loss” earlier
in this section.
Understanding Radio Reception
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations
to interfere with each other. AM can pick
up noise from things like storms and power lines. Try
reducing the treble to reduce this noise
if you ever get it.
FM Stereo
FM stereo will give you the best sound, but FM signals
will reach only about
10 to 40 miles (16 to 65 km). Tall
buildings or hills can interfere with
FM signals, causing
the sound to come and go.
Tips About Your Audio System
Hearing damage from loud noise is almost undetectable
until it
is too late. Your hearing can adapt to higher
volumes of
sound. Sound that seems normal can be loud
and harmful
to your hearing. Take precautions by
adjusting the volume control on your radio
to a safe
sound level before your hearing adapts to it.
To help avoid hearing loss or damage:
0 Adjust the volume control to the lowest setting.
Increase volume slowly until you hear comfortably
and clearly.
I NOTICE:
I
I Before you add any sound equipment to your
vehicle
-- like a tape player, CB radio, mobile
telephone or two-way radio
-- be sure you can
add what you want.
If you can, it’s very
important to do it properly. Added sound
equipment may interfere with the operation of
your vehicle’s engine, Delco Electronics radio or
other systems, and even damage them. Your
vehicle’s systems may interfere with the
operation of sound equipment that has been
added improperly.
So, before adding sound equipment, check with
your dealer and be sure to check Federal rules
covering mobile radio and telephone units.
3-28

Downloaded from www.Manualslib.com manuals search engine Befi: - 1 ~ u Go Off-Roading
There are some things to do before you go out. For
example, be sure to have all necessary maintenance and
service work done. Check to make sure all underbody
shields (if
so equipped) are properly attached. Be sure
you read all the information about your
four-wheel-drive vehicle
in this manual. Is there enough
fuel?
Is the spare tire fully inflated? Are the fluid levels
up where they should be? What are the local laws that
apply to off-roading where you’ll be driving? If you
don’t know, you should check with
law enforcement
people in the area. Will you be on someone’s private
land? If
so, be sure to get the necessary permission.
Loading Your Vehicle for Off-Road Driving
There are some important things to remember about
how to load your vehicle.
0 The heaviest things should be on the load floor and
1
forward of your rear axle. Put heavier items as far
forward
as you can.
Be sure the load is secured properly, so driving on
the off-road terrain doesn’t toss things around.
CAUTION:
0
0
0
Cargo on the load floor piled higher than
the seatbacks can be thrown forward
during
a sudden stop. You or your
passengers could be injured. Keep cargo
below the top of the seatbacks.
Unsecured cargo on the load floor can be
tossed about when driving over rough
terrain. You or your passengers can be
struck by flying objects. Secure the
cargo properly.
Heavy loads on the roof raise the vehicle’s
center of gravity, making it more likely to
roll over. You can be seriously or fatally
injured
if the vehicle rolls over. Put heavy
loads inside the cargo area, not on the roof.
Keep cargo in the cargo area as
far forward
and low as possible.
You’ll find other important information
in this manual.
See “Vehicle Loading,” “Luggage Carrier” and “Tires”
in the Index.
4-15

Downloaded from www.Manualslib.com manuals search engine You may see highway signs on mountains that warn
of special problems. Examples are long grades,
passing or no-passing zones, a falling rocks area
or winding roads. Be alert to these and take
appropriate action.
Winter Driving
Here are some tips for winter driving:
Have your vehicle in good shape for winter.
You may want to put winter emergency supplies in
your vehicle.
Include an ice scraper, a small brush or broom, a supply
of windshield washer fluid, a rag, some winter outer
clothing, a small shovel, a flashlight, a red cloth and
reflective warning triangles. And, if
you will be driving
under severe conditions, include a small bag
of sand, a
piece of old carpet or a couple
of burlap bags to help
provide traction. Be sure
you properly secure these
items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where your tires meet the
road probably have good traction.
However, if there is snow
or ice between your tires and
the road,
you can have a very slippery situation. You’ll
have a lot less traction or “grip” and will need
to be
very careful.
4-36

Downloaded from www.Manualslib.com manuals search engine Using heavier suspension components to get added
durability might not change your weight ratings.
Ask
your dealer to help you load your vehicle the right way.
NOTICE:
Your warranty does not cover parts or
components that fail because of overloading.
If you put things inside your vehicle -- like suitcases,
tools, packages, or anything
else -- they will go as fast
as the vehicle goes.
If you have to stop or turn quickly,
or if there is a crash, they’ll keep going. Things
you put inside your vehicle can strike and
injure people in a sudden stop or turn, or in
a crash.
0 Put things in the cargo area of your vehicle.
0 Never stack heavier things, like suitcases,
Try to spread the weight evenly.
inside the vehicle
so that some of them are
above the tops of the seats.
0 Don’t leave an unsecured child restraint in
your vehicle.
When you carry something inside the
vehicle, secure it whenever you can.
Don’t leave a seat folded down unless you
need
to.
There’s also important loading information for off-road
driving
in this manual. See “Loading Your Vehicle for
Off-Road Driving” in the Index.
4-41