The are dozens of different reasons for the yellow warning light turning on, so to say it is all over the internet can apply to a lot of different causes but most of the problems can be related to the wheel speed sensor that is out.
Here is a guide that can help you test and get the problem fixed:
If you cannot find the wheel sensor that is out the place to start is by having the diagnostic fault code(s) read. Those will get you into the right circuit, not necessarily to the defective part. The fact that the red light is also on is likely related. That light turns on if the parking brake pedal is not all the way up, there was unequal hydraulic pressures in the two circuits, or if the brake fluid level is low in the reservoir.
Ford is the only manufacturer that uses a non-spring-loaded pressure-differential valve to turn the light on when system pressures are unequal. That valve and switch can trip during brake bleeding or even just from pumping the pistons out of the calipers to contact the new pads right after installing them.
That valve can be real frustrating to center so the light will go off. You have to unplug its electrical connector to see if that is the cause for the light being on. Usually when the red light is on, the yellow one will also turn on and the computer will disable the ABS system because it does not know why that red light is on. It assumes the cause will prevent the ABS system from working properly.
As for a recall, that is only done when there is a known common problem related to safety or emissions. Pattern failures which are common ones that you hear about over and over are just that; common problems. Every manufacturer has them but that does not mean they warrant a recall. There was nothing defective about the parts. They just wore out real fast.
Saturday, July 30th, 2011 AT 4:49 AM