Honda Civic 2001 — technical service bulletin
Bulletin 010201 · NHTSA communication 619946 · issued Feb 1, 2001
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001
model years
1
vehicle entries
Official summary
Brief information regarding diagnostic trouble code p0138 (secondary ho2s (sensor 2) circuit high voltage). *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.