94 Taurus Antilock brake light

Hi all. I have a 94 Taurus GL 3.8 L engine. ABS 4 wheel disc brakes. (210,000 kms)
5 months ago I replaced all the pads (all for wheels) and the rear passenger
caliper because it was seized. Last week, my Antilock brake light came on & now stays on. Does any body know any any backyard fault finding styles that I could use to identify what part of my brakes is causing the light to stay on or is this strictly a dealer/professional mechanic area? There are no leaks that I can see, (no signs of drips/wet spots anyway), and the car brakes stop me with no apparent problems.
Any ideas would be greatly appreciated.
Dave
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.