Geoffzie posted to this list back in July 2018 that the Steering Rack is grounded to the Transmission in his 1K "Passetta" (2.5L engine). Geoffzie cleaned this ground and the Steering Assist problem was fixed. I think this is my starting point. Still to be done.
I think there must be a grounding strap issue.
Here is the complete scan.
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x86
VCDS Version: 22.214.171.124 HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
The steering assist fails intermittently. Steering becomes heavy.
Car has over 120,000 miles. Battery is 2017 but car has undergone recent, professional(?) repairs under the hood.
Other discussions on forum suggest this may be a battery issue.
I suspect a bad connection ("open circuit")...