dash inidactor lights

Howdy folks....I had my battery die a couple months ago and when I replaced it just about every dash indicator trouble light lit up. I took it into my local shop and they were able to "reset" everything except the ABS and parking break lights, which remain on...I finally sterted to get worried with winter weather on the way and the dealership told me my brake actuator (sp?) was bad and I needed a $1300 part to replace and fix the problem....they also informed me my ABS would not work until I replaced the electronics in the actuator? Any advice would be greatly appreciated...thinking about trying the junkyard as the part is easily accessible and would obviously be cheaper...pros/cons??? Thank you. AT

 

Sorry...2006 prerunner.....that probably would help the discussion. Cheers.