My advance traction abs light is coming on. how do i fix this. my friend told me it could be the front wheel sensor

Depending on vehicle it is I'd be looking for a bad front wheel bearing. The hubs come with a new sensor anyway. Once the bearing is worn it changes the air gap between sensor and exciter wheel and can give a false reading to the ABS unit. Has your ABS ever activated when coming to a stop sign (even when the roads are dry?). Do you hear a loud humming noise on highway?

Traction control and anti-locks(ABS) lights come on there is sensors that are pluged in behind the rotors check and see if they are disconected or loose sometimes when you change your brake pads they might come loose and not making contact.

with traction control set up cars abs and tranction control sensors are in the wheel bearings when a wheel bearing goes out grinding will come from front wheels and will ruin abs and traction control sensors causing the malfunction. Most likely by your description this will be it.

Sounds like you have a problem in the front brakes or a front wheel speed sensor. A common cause for a Traction light is a faulty front ABS wheel speed sensor or harness. When the Anti lock brake computer sees a problem in the ABS syetm, it disables traction control as well.

The traction control system uses the abs wheel sensors to detect wheel speed if the abs light is on the entire abs system will disable giving you regular braking but it will also stop feeding info to the traction control

We were having this problem...have your wheel bearing checked out. There was a sensor in the drivers side wheel bearing...once we replaced it (because it was going out) the ABS and Traction Control warning lights stopped coming on.

Prior to the brakes being replaced you more than likely had metal to metal contact which can throw metal shavings on the ABS wheel sensors. This metal shavings stick to the road grime on the wheel sensors showing the ABS computer a false reading making the ABS light come on. On Ford Windstars, the ABS light and the traction control light are on the same circuit. A simple (and cheap) fix is to pull the ABS wheel sensors and clean them with brake cleaner or throttle body cleaner. Make sure you dry them well and reinstall. On the Windstar there is one bold holding the sensors to the back of the wheels. I recommend you spray some WD40 on the bold and wait about 10 minutes before removing.
If this doesn't fix the ABS light and brakes, you can have the ABS system diagnosed at a shop for about an hour labor. (Usally about $100)
I have fixed many of these type of problems just by cleaning the ABS wheel sensors. Good luck.

A common cause for an ABS light is a broken wire to one of the front wheel speed sensor, or the sensor itself is bad. The sensor is part of the hub/wheel bearing assembly. A problem in the ABS causes the traction control system to be dissabled, thus turning on that light.

An ABS sensor DOES affect the traction control system. Traction control uses these sensors to determine if a wheel is losing traction. A bad sensor will cause both the ABS and TRACTION lights to come on.
The CHECK ENGINE light however is going to be a seperate problem.