Help-Bought 96 e300 9/3 now "check engine" and codes!

[satyr]

Hey all,
So we bought a clean looking 96 e300 (diesel) w/ 140K, and after driving it 700 miles home without any problems (or idiot lights)- it hesitated pulling out of the driveway and the "check engine electronics" is now lighted/displayed. It is running sluggish and won't do over 60 mph. I took it to a Bosch service center and they pulled the following codes:
p1520
p1630
p1480
p1615
p1470
What worries me though is they said they can't get their scanner to "communicate with the transmission." They said they will need to try and research the codes and see if they can figure out why the tranny isn't talking to their scanning equipment, and what the codes might be associated with.

If any of you have any suggestions, it would be appreciated. Thanks in advance for any help you might be able to offer. -John