1995 CHEVROLET CORVETTE check engine light

Downloaded from www.Manualslib.com manuals search engine Anti-Lock Brake System Warning Light
SERVICE
With the anti-lock brake
system, this light will come
on when you start your
engine and may stay on for
several seconds. That’s
normal. If the light doesn’t
come on, have it fixed
so it
will be ready to warn you if
there is a problem.
Anti-Lock Brake System Active Light
ABS
ACTIVE
When your anti-lock system
is adjusting brake pressure
to help avoid a braking skid,
the
ABS ACTIVE light will
come on. Slippery road
conditions may exist
if this
light comes on,
so adjust
your driving accordingly.
If the light stays on, turn the ignition
off. Or, if the light
comes on when you’re driving, stop
as soon as possible
and turn the ignition
off. Then start the engine again to
reset the system. If the light still stays on, or comes on
again while you’re driving, your Corvette needs service.
If the regular brake system warning light isn’t on, you
still have brakes, but you don’t have anti-lock brakes. If
the regular brake system warning light is also on, you
don’t have anti-lock brakes and there’s a problem with
your regular brakes. See “Brake System Warning Light”
earlier in this part. The
light will stay on for a few seconds after the system
stops adjusting brake pressure.
The ABS ACTIVE light also comes on briefly, as a bulb
check, when the engine is started. If the light doesn’t
come on then, have it fixed
so it will be there to tell you
when the system is active.
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Downloaded from www.Manualslib.com manuals search engine ASR (Acceleration Slip Regulation) System
Active Light
ASR
ACTIVE
When your ASR system is
limiting wheel spin, the
ASR ACTIVE light will
come on. Slippery road
conditions may exist
if this
light comes on,
so adjust
your driving accordingly.
The light will stay on for a few seconds after the ASR
system stops limiting wheel spin.
The ASR ACTIVE light also comes on briefly, as a bulb
check, when the engine is started. If the light doesn’t
come on then, have it fixed
so it will be there to tell you
when the system is active.
Engine Coolant Temperature Gauge
18s
TEMP
“F
LT1
100
uv
’E MP
‘F
LT5
This gauge shows the engine coolant temperature. If the
gauge pointer moves into the shaded area, your engine is
too hot!
It means that your engine coolant has overheated. If you
have been operating your vehicle under normal driving
conditions, you should pull
off the road, stop your
vehicle and turn
off the engine as soon as possible.
Hot Coolant Can Bum You Badly!
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
2-74

Downloaded from www.Manualslib.com manuals search engine For LTPWS to work properly, you must drive your
Corvette faster than
25 mph (40 km/h) and for more
than
2 miles (4 km). The system will not warn you
before
you begin to drive that a tire is flat.
When the LOWLFLAT TIRE light comes
on, check the
tire pressure in all four road tires as soon as you can.
Adjust the tire pressure as needed to those shown
on the
Tire-Loading Information label on the driver’s door.
If
the light stays on after the tire pressure is adjusted, see
your dealer. The
LTPWS sensor is directly opposite the valve stem
on the tire. Take care when servicing or having your
tires serviced. The sensors may not work properly
if
damaged. To prevent damage to the sensors, see the
1995 Corvette Service Manual for correct tire mounting
and dismounting procedures.
The LOWELAT TIRE light may come on if your
vehicle is close to another vehicle that has
LTPWS and
has a tire with low pressure.
LTPWS can warn you about a low tire, but
it does not
replace normal tire maintenance. See “Tires” in the
Index.
NOTICE:
Driving with a flat tire may damage the tire, the
wheel or the tire pressure sensor installed inside
the tire
on the wheel rim. Using tire sealants may
also damage the sensor.
If you have EMTs, see “Extended Mobility Tires”
in the Index.
2-77

Downloaded from www.Manualslib.com manuals search engine Service LTPWS Light (Option)
I
SERVICE
LTPWS
The amber SERVICE
LTPWS light comes on
whenever a LTPWS part is
not working properly. It
may also come on when
you’re going less than
25 mph (40 km/h) or in
stop-and-go traffic.
The light will
go out when the electronic receiver gets a
signal from each sensor.
Check the system by turning the ignition on. The light
should come on and then
go out. See your dealer if the
light stays on or doesn’t come on.
Here
are two situations that cause the SERVICE LTPWS
light to come on and stay on. Both of these situations are
normal and do qot indicate that anything is wrong with
your Corvette.
You turn the ignition on three times in a row for half
an hour without moving your Corvette. The light will
then come on every time you turn the ignition on
until you move your Corvette.
You run your Corvette three times for half an hour
while all four sensors
are missing. (All the sensors
would be missing, for example, if you put different
wheels on your Corvette without transferring the
sensors.)
If you would like to clear the SERVICE LTPWS light
from your driver information center permanently, see
your dealer.
If the light comes on and stays on, even when the
vehicle is driven, there may be a problem with LTPWS.
See your dealer.
Door Ajar Light
This red light comes on
when you open one of the
doors with the ignition on.
It stays on until you fully
close the door. Have your
vehicle serviced
if the light
comes on and stays on even
when the doors are fully
closed.
2-78

Downloaded from www.Manualslib.com manuals search engine Malfunction Indicator Lamp (Service
Engine Soon Light)
SERVICE
0
SOON
I
A computer monitors
operation
of your fuel,
ignition and emission
control systems. This amber
light should come on when
the ignition is on, but the
engine is not running, as a
check to show you it is
working.
If it does not come
on at all, have it fixed right away. If
it stays on, or it comes on while you are driving, the
computer is indicating that you have
a problem. You
should take your vehicle in for service soon.
NOTICE:
If you keep driving your vehicle with this light on,
after
a while the emission controls won’t work as
well, your fuel economy won’t be as good and your
engine may not
run as smoothly. This could lead to
costly repairs not covered by your warranty.
Engine Oil Pressure Gauge
-1
OIL
PRESS
PSI
The engine oil pressure gauge shows the engine
oil pressure in psi (pounds per square inch) or
kPa (kilopascals) when the engine is running. Oil
pressure should be
20 to 80 psi (140 to 550 Ea). It
may vary with engine speed, outside temperature and oil
viscosity, but readings above the shaded area show the
normal operating range. Readings in the shaded area tell
you that the engine is low on oil, or that you might have
some other oil problem. See “Engine Oil” in the Index.
2-80

Downloaded from www.Manualslib.com manuals search engine I 1=1 1 I -1 I
r .
For numeric gauge measurements, press the GAUGES
button on the Trip Monitor until OIL appears. The
number that appears next to the fuel gauge is the oil
temperature.
If LO appears, the temperature is below
32°F (OOC).
System Problems
If SYS flashes on the display near your fuel gauge,
there may be a problem with your Corvette’s electrical
system. If the amber SECURITY light flashes at the
same time, there
is a problem with your theft-deterrent
system. Have your vehicle checked by your dealer
if
SYS keeps appearing.
Gauge Markings
The analog gauges provide a quick visual reference to
the actual measurements of these gauges. However, you
must keep in mind that the gauges aren’t linear. This
means that the middle mark is not a temperature halfway
between the top and bottom temperatures on the gauge.
For your convenience, the following table gives the
exact reading for each mark.

Downloaded from www.Manualslib.com manuals search engine It’s normal for the transmission fluid temperature to
vary, depending on the type of driving you do and
weather conditions. If you drive on long grades on a hot
day, the transmission fluid temperature will be higher
than normal driving on a cold day. If you drive your
Corvette at high speeds with a lot of stop-and-go or fast
accelerations, your transmission fluid temperature may
also be higher.
If the transmission fluid exceeds
280°F (138 “C), the
CHECK GAUGES light will come on and HI
AUTO
will be displayed next to the transmission fluid
temperature when you toggle through the GAUGES
button. You should move the shift lever to DRIVE (D)
and continue driving at a slower, constant speed.
Monitor the transmission fluid temperature and allow
it
to cool to 180°F (82°C) to 200°F (93°C). Then, you
should check the transmission fluid level for a low fill or
overfill condition and bring your Corvette in for service
as soon as possible (see “Automatic Transmission Fluid”
in the Index). Also, check the engine coolant
temperature. If it’s too hot, see “Cooling System” in the
Index.
Check Gauges Light
This red light will come on
briefly when you are
starting the engine. If the
light comes on and stays on
while
you are driving, check
your gauges to see if they
are
in the warning areas.
This light can come
on for:
0 high engine oil temperature or low oil pressure
high coolant temperature
high or low battery voltage
0 low fuel level
0 high automatic transmission oil temperature
2-85

Downloaded from www.Manualslib.com manuals search engine Defogging and Defrosting Windows
Your vehicle has several settings for clearing your
windows. The air conditioner compressor will run to
help remove moisture from the air.
To defrost the windshield quickly, press the arrows on
the
TEMP SET switch to set a comfortable temperature.
Press DEFROST and the fan will go to high speed. After
the windows are clear, you can lower the speed using the
downward arrow or
AUTO FAN.
With the automatic system, to warm passengers while
keeping the windshield clear? press the arrows on the
TEMP SET switch to set a comfortable temperature. Press
HEATER and DEFROST at the same time and, if you
don’t like the automatic setting, press the
arrows on the fan
speed switch.
To defrost the side windows quickly, press the arrows on
the
TEMP SET switch to set a comfortable temperature.
Then press DEFROST and,
if you don’t like the automatic
setting, press the arrows on the fan speed switch.
System Problems
If the light above an air control button flashes when you
turn on the ignition, your system may have an electrical
problem. The flashing will continue for one minute, then
stop.
The flashing light could also mean the refrigerant level
is too low in your system. The light will continue to
flash, even if refrigerant is added, until the system is
reset. Have your system checked and serviced if needed.
To reset your system:
1. Turn your ignition key to OFF or LOCK.
2. Remove the courtesy lamps and radio fuses from the
main fuse panel and wait one minute. See “Fuses and
Circuit Breakers” in the Index.
3. Put the fuses back in and start your vehicle.
The light shouldn’t come on and your system should be
working properly. If you still have a problem, see your
dealer.