Toyota Corolla 2003 — technical service bulletin
Bulletin 02002 · NHTSA communication 10000275 · issued Oct 23, 2002
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003
model years
2
vehicle entries
Official summary
Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) p0770. *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.