2000 Chevy Cavalier Engine size = 2200.
Airbag Light On
Tip/donation = yes. Question = How do i replace the airbag sensor?

Thank you for the tip/donation.
Are you referring to what is called the "front end discriminating sensor" Or the airbag "sensing
and diagnostic module"?

the airbag sensing and diagnostic module. I was told this because of the airbag light is always on.
The car hit a truck head-on and the airbags deployed. All repairs were completed.

The SDM is located under the carpet, under the passenger seat. The seat will have to be
removed. Then replace the module after key off, and fuse(s) removed. The module will only bolt
in 1 way. Arrow on module points to the front of the car.

After that you will have to perform a setup procedure on the module and the body control
module(BCM) with a dealer scan tool. If the setup procedures are not performed, you will have an
airbag light on, and codes in the BCM.

Problem with my 2004 Chevy Cavalier LS Engine size = 4 cylinder with the service w/ wrench, ABS,
No Traction lights. Brake pads replaced over a year ago.
Question = My service
ABS and No TRAC lights are all coming on intermittently, but at the same
time.  They go off when I turn off the car and restart it.  They come on when I am in the middle of
driving or sometimes when I put it into reverse and back in to drive. There is also a noise when I
make left hand turns.

The light with the wrench is the
"Service Vehicle" light. These lights are most likely all related.
Sounds as if you have a problem in the ABS system. A problem in the ABS  will cause the ABS light
to come on, traction control system will be disabled, and the  service vehicle light will come on. The
ABS computer will have to scanned for codes.  By what you describe, most likely have a front
wheel speed sensor problem, or the  harness going to one of the front speed sensors has a
broken wire inside the  insulation, or full of water.
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Chevy Cavalier ABS And Airbag Lights