Honda Civic 2004 — technical service bulletin
Bulletin 105 · NHTSA communication 10014121 · issued May 16, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
Dtc (diagnostic trouble code) p0135, air fuel ratio sensor relay. *sc
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.