Originally Posted by felixthecat
Brake light on = possible low on brake fluid....abs light= tone ring, wiring or a sensor...tcs hooked to the abs.
The hand brake has a switched tied to the brake light as well iirc.
Did you change any of the braking components? Need to make sure any replacement parts were for an ABS car or you swapped over those tone rings. What happens when you panic stop in a low traction situation? Find an empty road or parking lot. If the brakes just lock up, that will tell you ABS is not working at all