1994 Honda Civic Owner's Manual - Page 185

1994 Honda Civic Manual

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Supplemental Restraint System The Honda Supplemental Restraint System (SRS) is standard on all Civic Coupes sold in the U.S. and Canada. The SRS includes the steering wheel airbag assembly for the driver, a dashboard-mounted airbag assembly for the front seat passenger, and a control unit with sensors behind the center console. The sensors are decelerometers, set to trigger in a severe frontal impact that generates more force than a 25 mile per hour crash into a parked vehicle of similar size. For the SRS to activate, both sensors must trigger. This duplication is to prevent accidental activation. When the control unit receives trigger signals from both sensors, it sends voltage to the airbags. The control unit stores this charge in capacitors to ensure reliability even if a severe impact damages the car's battery or electrical connections. The electrical charge sent to the airbag assembly ignites its propellant, which burns instantaneously. The gas produced by the burning propellant inflates the airbag instantly. The airbags are vented so they stay inflated for only an instant and do not block the driver's vision. Smoke from the burned propellant comes out of the airbag and into the car's interior. This is normal and does not mean there is a fire. The airbags collapse onto the driver's and passenger's laps. The airbags and control unit must be replaced after the system is activated. After use, your Honda dealer must check the complete Supplemental Restraint System and replace the airbag assemblies. To ensure long-term reliability, the SRS uses gold-plated electrical connections throughout. Exposed components are sealed with epoxy. The control unit monitors the SRS circuitry whenever the ignition is ON (II). If the control unit senses any faults, it turns on the SRS indicator light on the instrument panel. Take the car to your Honda dealer to diagnose and repair the system as soon as possible. The SRS needs no regular maintenance other than an inspection by your Honda dealer 10 years after manufacture. Technical Information

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Supplemental Restraint System
The Honda Supplemental
Restraint System (SRS) is
standard on all Civic Coupes sold
in the U.S. and Canada.
The SRS includes the steering
wheel airbag assembly for the
driver, a dashboard-mounted
airbag assembly for the front seat
passenger, and a control unit with
sensors behind the center
console.
The sensors are decelerometers,
set to trigger in a severe frontal
impact that generates more force
than a 25 mile per hour crash into
a parked vehicle of similar size.
For the SRS to activate, both
sensors must trigger. This
duplication is to prevent
accidental activation.
When the control unit receives
trigger signals from both sensors,
it sends voltage to the airbags.
The control unit stores this
charge in capacitors to ensure
reliability even if a severe impact
damages the car's battery or
electrical connections.
The electrical charge sent to the
airbag assembly ignites its
propellant, which burns
instantaneously. The gas
produced by the burning
propellant inflates the airbag
instantly.
The airbags are vented so they
stay inflated for only an instant
and do not block the driver's
vision. Smoke from the burned
propellant comes out of the
airbag and into the car's interior.
This is normal and does not mean
there is a fire. The airbags
collapse onto the driver's and
passenger's laps.
The airbags and control unit must
be replaced after the system is
activated. After use, your Honda
dealer must check the complete
Supplemental Restraint System
and replace the airbag
assemblies.
To ensure long-term reliability,
the SRS uses gold-plated
electrical connections
throughout. Exposed components
are sealed with epoxy. The
control unit monitors the SRS
circuitry whenever the ignition is
ON (II). If the control unit senses
any faults, it turns on the SRS
indicator light on the instrument
panel. Take the car to your Honda
dealer to diagnose and repair the
system as soon as possible.
The SRS needs no regular
maintenance other than an
inspection by your Honda dealer
10 years after manufacture.
Technical Information