sensor GMC SIERRA 1997 Owners Manual

In many crashes severe enough to inflate an air bag,
windshields are broken by
vehicle deformation.
Additional windshield breakage may also occur from
the right front passenger air bag.
Air bags are designed to inflate only once. After they
inflate, you’ll need
some new parts for your air bag
system. If you don’t get them, the air bag system
won’t be there to help protect you
in another crash.
A new system will include air bag modules and
possibly other parts. The service manual for your
vehicle covers the need to replace other parts.
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.
Unless you have a Crew Cab, your vehicle has a
switch on
the instrument panel that you can use to
turn off the passenger’s air bag. But use this switch
only when
you want to secure a rear-facing child
restraint at the right front passenger’s position. See
“Securing a Child Restraint in the Right Front Seat
Position” in the Index for more on this, including
important safety information.
A CAUTION:
If the right front passenger’s air bag is turned
off, an adult or a child who is no longer an infant
sitting in the right front passenger’s position
won’t have the extra protection of an air bag.
In
a crash, the air bag wouldn’t be able to inflate
and help protect the person sitting there. Make
sure the air bag
is turned on unless you are using
a rear-facing child restraint in the right front
seat position.
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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.
e.’ 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 questions about this, you
should contact Customer Assistance before
you
modify your vehicle. (The phone numbers and .
addresses for Customer Assistance are in Step Two of
the Customer Satisfaction Procedure in this manual.
See “Custotner Satisfaction Procedure”
in the Index.)
e.’ What if I add a snow plow? Will it keep the air
bags from working properly?
A: We’ve designed our air bag systems to work
properly under a wide range
of conditions,
including snow plowing with vehicles equipped with the optional Snow Plow Prep Package (RPO
VYU). But don’t change or defeat the snow plow’s
“tripping mechanism.”
If you do, it can damage
your snow plow and your vehicle, and
it may cause
an air bag inflation.
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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 module, the wiring and the
diagnostic module.
For more information on the air bag
system,
see “Air Bag” in the Index.
AIR
BAG
This light will come on
when you start your engine,
and it will
flash for a few
seconds. Then the light
should go out. This means
the system is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.
The air bag readiness light should flash for
a few
seconds when you turn the ignition key to
RUN. If the
light doesn’t come on then, have it fixed
so it will be
ready to warn you if there
is a problem.
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Name
ECM-B
RR DEFOG IGN-E
Usage
Fuel Pump, PCMNCM
Rear Window Defogger
Auxiliary Fan Relay Coil,
A/C
Compressor Relay, Hot Fuel
Module, Dual Tanks
Name
FUEL SOL
GLOW PLUG
HORN
AUX FAN
ECM-
1
NC
ENG-
1
LIGHTING
BATT
IGN-A
IGN-B ABS
BLOWER STOP/HAZ
Usage
Fuel Solenoid (Diesel Engine)
Glow plugs (Diesel Engine)
Horn, Underhood Lamps
Auxiliary Fan
Injectors,
PCMNCM
Air Conditioning
lgnition Switch,
EGR, Canister
Purge,
EVRV Idle Coast Solenoid,
Heated
02, Fuel Heater
(Diesel Engine), Water Sensor
(Diesel Engine)
Headlamp and Panel Dimmer
Switch,
Fog and Courtesy Fuses
Battery, Fuse Block Busbar
Ignition Switch
Ignition Switch
Anti-Lock Brake Module
Hi Blower Relay
Stoplamps
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