[phatnine11]

I just had the top end done on a 964 and now there is ABS light that comes on randomly. I don't have any history on the car but I noticed that the speedo stops working, then the ABS light comes on. The car has a tip trans and I can't find any troubleshoot procedures for this problem. The car is going back to the wrench that did the top end due to a small oil leak and I will ask him to check the connections at the trans since he was the last one in there. The car was parked for 7 years and the previous owner states that no warning lights were on the last time the car ran. Any advice or recommendations on how to deal with this issue would be great!
Thanks in advance,
Cesar