What you need:
Autel IM508 +XP400 Pro/IM608 Pro
IM608 Pro kit (APB120 adapter)
You can read TMS370 with XP400Pro PC software.
Autel XP400 PC Programmer Software Installation Download
Within XP400 Pro, you can see the Tms370 after updating the firmware.
For example, here is Ford Escort 1994 pats external
Solder chip onto apb120 adapter
choose the first Tms370c002 to read
followed the logic based on the pinout
After reading the immobilizer data, you can program 2 keys