I just changed a leaky wheel cylinder and couple brake lines on my 97 4runner. I test drove it and its got decent brakes and doesn't appear to be low on fluid.... the brake light is staying on so I pulled the battery hookup thinking I may need to reset it. No luck ...its still on. Anybody have any ideas.

 

You are likely low on brake fluid. It needs to be near the top.

 

The brake warning light Is the little float in the brake fluid rez, maybe it is stuck down from being low, if not the sensor may be bad.