Volkswagen Touareg 2003–2004 — technical service bulletin
Bulletin V971201 2031104 · NHTSA communication 10156076 · issued Oct 9, 2012
Technical service bulletin
communication type
Electrical System
component
2003–2004
model years
2
vehicle entries
Official summary
Technical Bulletin (Diagnostic Connector - No ECM Communication): Some model year 2003 ? 2004 V6 Touareg?s may exhibit a loss of communication through the OBD diagnostic connector. The signal ground wire may be missing from pin 5 of the diagnostic connector. This document informs how to diagnose, and service this issue.
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.