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2004 Chevy Cavalier LS. Service w/ wrench, ABS, No Traction lights. Replaced brake pads
replaced over a year ago.

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.
2006 impala tire pressure monitor system light on. My tires have been checked are fine.
2001 chevy malibu wont start, theft security light.
A few other Chevy questions.
2004 Chevy Cavalier service light abs light and t/c light all are on what is this
This could be a lot of different things, depending
on which service light is on. A check engine light
can disable traction, ABS will also disable traction.
Need to get the computer codes scanned.
The computer scan came up with nothing wrong.
If you're having the lights come on, there will be a
code set. If you had it scanned at a local parts
store, their scanners do no read
ABS codes. You
should take it to a Chevrolet dealer so it can get
properly looked at with the right equipment.
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Chevy Cavalier ABS And TRAC Lights Come On