Toyota Corolla 2012–2014 — technical service bulletin
Bulletin T-SB-0107-14 · NHTSA communication 10109554 · issued Aug 21, 2014
Technical service bulletin
communication type
Engine and Engine Cooling
component
2012–2014
model years
5
vehicle entries
Official summary
TSB: Some 2012 - 2014 model year Corolla vehicles equipped with a 2ZR-FE engine (or 2014 model year 2ZR-FAE) and some 2012 - 2013 model year Matrix vehicles equipped with a 2ZR-FE engine may exhibit a MIL "ON" with DTC P219A (Bank 1 Air-Fuel Ratio Imbalance) present. Follow the Repair Procedure in this bulletin to improve this condition.
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.