Ok, so I just got my car dynoed today, and after rolling it off, I notice my ABS INOP light is on. I drove around and it didn't seem to go off. Another member from our club there had his come on as well too after dynoing, but his went off after. When I got home, I checked to see if my 3rd brake light was out, but it seems to be on. After a few pumps of the brake again, the left brake light no longer comes on?? Does this have anything to do with it?

 

I have seen a few people post that the straps the folks used to tie the car down on the dyno, interfered with the connection of the speed sensor on the rear end. You might want to check the connection.

It could also be from the rear tires moving, the fronts not and may eventually go away.

 

TTT

 

what shoebox said
happened to me. if its unplugged the cable/wire could be shot to.. mine was shot after i plugged it back in.