Need help- 2007 Toyota RAV4 traction control
 

Today my wife was driving the RAV4 onto a highway on ramp which was a fairly tight sweeping radius. While going through the turn the check engine light, the VSC and the light with squiggly lines came on. Two out of three are indicating the traction control is not operating. There is a manual button on the dash you can push to activate/deactivate the system but it does nothing when pressed. Up to today that button worked. Car has 67,000 miles on it and runs great. It is front wheel drive. So is this a sensor gone bad ? I do have a code reader and will check it tomorrow but I figured I'd get suggestions from the Pelican brain trust :D. I'm hoping the check engine light was triggered by the other two.

Could be just something as simple as a wheel speed sensor. About $100 for the part.

The VSC light will come on in unison with the CEL......least it does on our Highlander.
Check the owners manual.
Not sure what the squiggly light is.

Turns out it was the O2 sensor on bank number one. Weird how it is tied into the traction control. Car will be ready on Monday.