Audi A6 2002–2004 — technical service bulletin
Bulletin SB-37-09-06 · NHTSA communication 10032188 · issued Aug 5, 2009
Technical service bulletin
communication type
Exterior Lighting
component
2002–2004
model years
3
vehicle entries
Official summary
Audi: switching on the headlights causes a low voltage, which leads to the failure of the diagnosis signal of the gear lever circuit board. The tcm recognizes a fault in the gear lever electronics and stores dtc p753. *pe
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.