DTC P1625: No Bus data From TRIONIC or TCM: Conditions

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

The following conditions are applicable:

Trionic:

No bus communication for 3 seconds.
TC/ABS has previously been present on the bus at some time.