2003 chevy cavalier. 150,000miles. abs light has been coming on and going off for awhile now and we have had the brakes changed all the way around. tonight on my husbands way home the trac off light came on and the car shut off and coasted to the side of the highway. now it wont start at all. what do we do?
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Re: trac off light is on and the car wont start
Did you get anyone to check the codes?
the trac off light will come on if the ignition module goes the module sits on top of the engine it has silver fins and is held in with 3 torx screws. it sells for about $100 so you might want to have someone diagnose this hope this helps
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The ABS and traction off lights usually indicate a bad wheel speed sensor. I can't remember if the service light came on the three times mine went. The most common one to fail is the left front.
Try this cheap fix first.
Remove the left front wheel speed sensor, clean and reinstall it. They are magnetic and some times road debris will block the sensor. If that was the problem the ABS and traction lights will go off when you start the car.
Your second option is to have the shop scan the vehicle trouble codes, usually this costs an hours labor.
Engine light if giving a cooling circuit problem, senses that the fan won't come on. Trac goes on when the abs wheel speed sensors don't sense right speed (open or closed circiuit). Could be a fusible link near starter.
a/c clicking on and off, could mean charge is insufficient or too much r134a in the system.
check the abs sensors and connections of the sensors also that the sensor connection is attached to the clip[part of the circuit if wiring and connections are good then have car scanned most auto stores such as auto zone / advanced auto do this service for free check ur local area the trouble code will pinpoint ur problem so ur can repair ur car
no you need to take it and have the codes pulled on it, the abs system will disable the traction control system.Without knowing what the codes are for the abs system it would not be possible to say what the problem is.
Usually when the ABS light comes on the circuit is broken and my experience usually leads me to a broken wire on the 03 and older in the system.
90% of the time it is the wire to the left front wheel or the plug in that plugs into the magnet on the left front wheel.
Please check that first. If you find a broken wire repair it and your system will work again.
If your ABS light is on as well, have a shop scan it (it requires a special scanner). If it's just your Trac light without ABS, it is most likely a sensor under the hood at fault. If you are getting a check engine light as well, get the codes read!
This happened to me without an ABS light and it was the upstream O2 sensor. The reason it throws the Trac light is because if any components that the traction control uses (ignition, fuel) are affected by a bad sensor, the PCM shuts down traction.
In fact, when I replaced the O2 sensor, a handful of other little issues resolved as well.
If you do have an ABS light on, it could very well be a wheel speed sensor.