'00 ABS / Brake / Trac Off Indicators

This morning all three indicators (ABS, Brake, Trac Off) came on at the same time on the way into work. Brakes still work fine (for the moment as I'm at work now) but I'm unsure what the problem may be. A couple days ago I felt a clunking sound when pushing down on the brakes, but I haven't felt it since. Brake fluid level is normal....

Anyone know what it may or may not be before I spend $100 bucks getting it checked out????

Thanks!!!!

Car somehow thought you were spinning in circles , mine does that when im pulling hard e brake turns on ice. The little bell goes ding ding ding then the three lights stay on and go away if i turn the car off then on again. I think it should be looked at by a authorized tec , cus the abs is disengaged and that car is desighned to use abs. For your safety and to prolong the drivabillity of your car have it looked at.

also if the (!) brake light is on , theres a possiblilty that the headlights wont be on.

Thanks for the help...

Would it be advisable to disconnect my battery to reset the computer?

My dealer *thought* that the brake light being on could lead to a leak in the proportioning valve... I'll have to check at lunch to see if there is any leaks.

Why wouldn't the headlights be on if the BRAKE light is on?

Take it to Autozone and have them check the ECU codes for you for free. Don't reset the ECU, those lights are on for a reason. The traction is sometimes retarded and comes on or off, but the brakes shouldn't be on. My first piece of advice would have been the brake fluid, I'd also check your pads, rotors, brake lines for kinks or leaks. If it isn't obvious it could be the slave or master cylinders. But you need your brakes...so get it checked out.

From what i understand. The breaks, crusie control, and EST (traction Control) are all kinda together. When a sensor goes out in the ABS speed sensor the traction control will not work cause it uses those sensors as well. And crusie control won't work due to a safety feature that provents it from being on with your brakes having problems. So i'm guessing if all three lights on are on it a sensor problem. Well not the crusie control light. Just the ABS light and the brake light and Trac off light. I would have them check the sensors. Thats me? I might be totally wrong but thats what understand about my car.