Here's a brief guide on how to connect to the CAN bus on a Trionic7 ECU.
CAN bus connection offers a fast and convenient way to read or flash the
firmware in the ECU. However, keep in mind that there's a slight chance it
may fail while writing the memory, especially if you're flashing in the car.
When that happens, you end up with a dead ECU, which no longer responds to
a CAN connection. The only way to revive it in this case is by using a
BDM interface.
Related Links:
ECUProject forums,
T7Suite,
T7Tool,
SaabOpenTech.