Audi A6 2005–2015 — technical service bulletin
Bulletin A901554 2040593- · NHTSA communication 10120042 · issued May 11, 2015
Technical service bulletin
communication type
Equipment
component
2005–2015
model years
16
vehicle entries
Official summary
Customer reports that the ignition sporadically cannot be switched on. DTC 00456 (Access/start control module -J518- no communication) is found in several control modules or the access/start authorization control module, J518 (address word 05), identifies itself with implausible data can be found through guided fault finding (GFF). If no communication is possible, activate the bus by switching on the hazard warning lights. It should now be possible to carry out a diagnosis. If DTC 00288 (Steering column lock actuator-N360, faulty) is logged in the access/start authorization control module, J51
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.