Check the brake fluid. If it is ok, take it to the dealer and have the abs codes read.
Additionally, there could be a couple reasons more. For my '95 Trooper, the ABS hydraulic brake cylinder was gradually going out. The ABS brake light would blink on and off going over bumps, then finally the ABS brake light stayed on all together. Two or three years later I had it checked out and the ABS hydraulic cylinder was defective and replaced. My mechanic also told me that the electrical line from the ABS sensor at the differential is known for breaking in a particular location and that also could cause the problem.
Could be low on brake fluid. This is a sign that the brakes need attention.
Yes.... the brakes will make a "metallic" sound when the brakes are getting worn.
Take your auto to your local Merc Shop and they should be able to reset your cpu for free.
When it is no longer able to keep the system charged. Starting with 2001 model, when the car is started, if you see either the battery warning or the battery along with the brakes warnings on, or intermittently flashing on, you need to have your alternator checked. Otherwise, its fine.
The best place to have your brakes replaced at would be Midas they would be able to replace both your brake shoes and even brake calibers if they need replaced.
brakes need replaced
You can go to your local auto mechanic to have your brakes replaced. You need the to give you a quote and their expertise will make for the best repairs.
I don't think your brakes have anything to do with that one!
If your brakes feel like they are pulling you should get them checked out. These brakes may need to be replaced.
Brakes can be replaced at almost any maintenance center car shop or place with a certified mechanic. You can even do it yourself if desired, and you have the tools.
if you drove on your brakes with them rubing, you may have to restart your car's computer by unpluging the batt and leting it sit for about 15 minates
Your pads or discs are worn. The brakes will fail soon if not replaced.