Ford Crown Victoria 1997 — technical service bulletin
Bulletin 17310 · NHTSA communication 10004951 · issued Oct 1, 2003
Technical service bulletin
communication type
Electrical System
component
1997
model years
3
vehicle entries
Official summary
Malfunction indicator lamp (mil) on with diagnostic trouble codes (dtcs) p0420 (catalyst system efficiency below threshold - bank 1) and/or p0430 (catalyst system efficiency below threshold - bank 2). *tt
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.