1996 CHEVROLET ASTRO sensor

Your vehicle is equipped with a crash sensing and
diagnostic module, which records information about
the
air bag system. The module records information
about the readiness of the system, when the sensors are
activated and driver’s safety belt usage at deployment.
system. Improper service can mean that your air bag
system won’t work properly. See your dealer for service.
0 Let only qualified technicians work on your air bag
Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts
of the air bag system in several places
around your vehicle. You don’t want the system to
inflate while someone is working on your vehicle. Your
GM dealer and the service manual have information
about servicing your vehicle and the air bag system.
To
purchase a service manual, see “Service and Owner
Publications”
in the Index.
NOTICE:
If you damage the cover for the driver’s or the
right front passenger’s air bag, they may not
work properly. You may have to replace the air
bag module in the steering wheel or both the air
bag module and the instrument panel
for the
right front passenger’s air bag.
Do not open or
break the air bag covers.
.
For up to 10 minutes after the ignition key is
turned off and the battery is disconnected, an air
bag can still inflate during improper service. You
can be injured
if you are close to an air bag when
it inflates. Avoid wires wrapped with yellow tape
or yellow connectors. They are probably part of
the air bag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualified to do
so.
The air bag system does not need regular maintenance.
1-29

Adding Equipment to Your
Air Bag-Equipped Vehicle
@ If I add a push bumper or a bicycle rack to the
front
of my vehicle, will it keep the air bags
from working properly?
A: As long as the push bumper or bicycle rack is
attached
to your vehicle so that the vehicle’s basic
structure isn’t changed, it’s not likely to keep the
air bags from working properly in a crash.
Is there anything I might add to the front of the
vehicle that could keep the air bags from
working properly?
A: Yes. If you add things that change your vehicle’s
frame, bumper system, front end sheet metal or
height, they may keep the air bag system from working properly. Also, the air bag system may not
work properly if
you relocate any of the air bag
sensors. If you have any question about this,
you
should contact Customer Assistance before you
Safety Belt Use During Pregnancy
Safety belts work for everyone, including pregnant
women. Like
all occupants, they are more likely to be
seriously injured if they don’t wear safety belts.
modify your vehicle. (The phone numbers and
A pregnant woman should wear a lap-shoulder belt, and
addresses for Customer Assistance are in Step Two
of the lap portion should be worn as low as possible, below
the Customer Satisfaction Procedure in this manual.
See “Customer Satisfaction Procedure”
in the Index.)
the rounding, throughout the pregnancy.
1-30

Safety Belt Reminder Light
When the key is turned to RUN or START, a tone will
come on for about eight seconds to remind people to
fasten their safety belts, unless the driver’s safety belt is
already buckled.
The safety belt light will
also come on and stay on
for about
20 seconds,
then it will flash for about
55 seconds. If the driver’s
belt is already buckled, neither the tone nor the
light will come on.
Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel,
which shows AIR BAG. The system checks the
air bag’s electrical system for malfunctions. The light
tells you
if there is an electrical problem. The system
check includes the air bag sensors, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information on the air bag system, see “Air
Bag” in the Index.
AIR
BAG
You will see this light flash
for a few seconds when you
turn your ignition to
RUN
or START. Then the light
should
go out. This means
the system is ready.
If the air bag readiness light doesn’t come on when you
start your vehicle, or stays
on, or comes on when you
are driving, your air bag system may not work properly.
Have your vehicle serviced right away.
2-54

Fuse
UPFIT-BATT .......
UPFIT-IGN . .
Spare .....
Fuse Puller*
Spare
.............
Spare .............
ECM-B ............
..
..
HORN ......
A/C COMP ...
RR DEFOG .......
ENG-I ......
IGN-E
..
..
Usage
Upfitter Battery
Power Stud, Trailer Wiring
Harness Upfitter Ignition Relay
Not Used
Not Used Not Used
Fuel Pump Relay,
VCM, Oil Pressure
Switch/Sender
Horn Relay
A/C Enable Relay
Heater-A/C Control Selector Switch
Oxygen Sensors 1-4,
Camshaft Position Sensor,
Mass Air Flow Sensor,
Evaporative Emission
Canister Purge Solenoid
Valve, Linear EGR Valve
Solenoid, VCM
A/C Enable Relay
Fuse
ECM-I ..... .....
LIGHTING .....
BATT I/P .......
IGN A .............
IGN B .............
ABS ..............
AIC ...............
RR HTR/AC ........
Spare .............
Usage
Fuel Injectors 1-6,
Crankshaft Position Sensor,
VCM, Distributor Ignition
Control Module Park Lamps Fuse,
DRL Fuse, Headlamp and
Panel Dimmer Switch
Fuse Block Fuses,
Power Seat CB,
Stop/Hazard Fuse,
Auxiliary Power Fuse,
Cigarette Lighter Fuse,
Radio, Battery Fuse
Starter Relay, Ignition Switch
Ignition Switch
Brake Pressure Module Valve Blower Motor Resistor,
Blower Relay
Auxiliary Heater A/C Relay
Not Used
* A fuse puller is included in the underhood electrical
center. You
will also find spare fuses.
6-65