Need to install airbags. direction on how to install front passenger airbags in a 2002 chevy cavalier

No there is no switch to turn airbags on/off and No the sensors cannot be adjusted.
Owners manual can be purchased from a main dealer or auto parts store.

Hello Collette,

(Owner Manual Page 2-68)
The passenger sensing system turns off the right front
passenger frontal airbag and seat-mounted side
impact airbag under certain conditions. The driver
airbags and the roof-rail airbags are not affected by the
passenger sensing system.
The passenger sensing system works with sensors that
are part of the right front passenger seat. The sensors
are designed to detect the presence of a properly-seated
occupant and determine if the right front passenger
frontal airbag and seat-mounted side impact airbag
should be enabled (may inflate) or not.

I'm not sure if a purse or other light weight objects would activate the passenger airbag but if your display is showing random passenger activation it would be best to have a qualified dealer check into it...better safe than sorry.
http://www.gm.ca/media/owners/manuals/2010_Chevrolet_Malibu_Manual_en_CA.pdf

Hi Summer,

Colin Stickland provided an answer on this issue to the same question posted earlier. Attached here for your review.

The airbag light stays on my 2002 chevy tahoe can it be shut off

right side (passengers) strut mount, to the left of the mount is the PCM, and in front of the mount is the cruise control module...PCM/ECM same thing

Find the fuse or relay for that airbag pull fuse out should disable it.

if you have the 2.2 2.3 2.4 engines oil dip stick location on passenger side front engine down below upper radiator hose below the throttle body resonator.

chevy cavalier computer is located beehind the passenger side front bumper cover (under the passenger side fender

Sorry I haven't messed with any airbags as of yet.

If it says "airbag" on the stering wheel AND on the dash in front of the passenger,then it has a passengers side airbag.
Children are much safer in the back seat in the event of a collision.

on the 2002 Accent we have, the area is clearly identified w/the "cutout" area and marked SRS Airbag...perhaps look at Hyundai.com at the owners' manual online, or look at used cars/junk yards to compare dash panels to yours...would think it VERY difficult for avg person to perform this task