Honda Civic 2001–2003 — technical service bulletin
Bulletin 113004 · NHTSA communication 10011763 · issued Nov 30, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2003
model years
3
vehicle entries
Official summary
Diagnostic trouble code p0420 and data recorder installation. Investigation of 2001-2003 civics with the malfunction indicator light (mil) on and diagnostic trouble code (dtc) p0420 stored. *nm
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.