Toyota Corolla 2005–2008 — technical service bulletin
Bulletin T-SB-0235-09 · NHTSA communication 10032518 · issued Jul 28, 2009
Technical service bulletin
communication type
Engine and Engine Cooling
component
2005–2008
model years
8
vehicle entries
Official summary
Toyota: engine control. Some model vehicles may exhibit a mil on condition with diagnostic trouble code (dtc) p0456. Evaporative emission control system leak detected (very small leak). The engine control module/ecm (sae term: powertrain control module/pcm) logic has been modified to reduce the possibility of this condition occurring. *pe
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.