Audi A4 2008–2010 — technical service bulletin
Bulletin A281322 2028419- · NHTSA communication 10121494 · issued Nov 15, 2013
Technical service bulletin
communication type
Steering
component
2008–2010
model years
7
vehicle entries
Official summary
Supersedes Technical Service Bulletin Group 96 number 12-28 dated January 27, 2012. DTC is present in the access start authorization control unit, J393 (address word 05), and cannot be cleared. The original electronic steering column lock control unit, J764, is installed. The original control unit has never been replaced. A replacement electronic steering column lock control unit, J764, has been installed. Before a replacement electronic steering column lock control unit, J764, is installed, the software of the access start authorization control unit, J393, must be updated due to a diagnostic
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.