One day I put my 89 BII in 4 low pulling fence, and the rear anti-lock light and e-brake light came on. The next day when I started her up, no lights. They always cone on together, but are not always on. What gives?

 

somthing may have snaged a wire while you where pulling the fence for the abs as for the e brake light mine did a sorta random thing it worked somtimes and somtimes didnt turns out the switch for the ebrake light just above the ebrake pedal was loose you should check that on yours

 

I just experienced the same problem. Turned out I was low on brake fluid. Be a good place to start looking.

 

If it continues a good flush of the brake system helps sometimes.

 

Same exact thing happened to me a while back on mine.

 

Well, I checked and I have plenty of brake fluid. Could it be a sensor?

 

My anti lock light came on intermitently and then stayed on all the time it could be a variety of things,sensor on the rear pumpkin ,rabs valve,brake fluid.I ended up doing a brake job and it went away.

 

You can try pulling the code, see the procedure in the tech info thread at the top of this forum.