Chevrolet Corvette 1997–2003 — technical service bulletin
Bulletin 020604022 · NHTSA communication 634725 · issued May 1, 2002
Technical service bulletin
communication type
Power Train
component
1997–2003
model years
7
vehicle entries
Official summary
Powertrain control module (pcm) reprogramming and data line diagnosis using j42236a. *tt
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.