There are a variety of warnings and consequences associated with the defect. The engine warning lamp could be illuminated, harsh shifting could result, the engine may not start, or the engine could shut off while the vehicle is being driven. An engine shutoff while the vehicle is being driven increases the risk of a crash.
Toyota is recalling certain model year 2005-2008 Corolla and Corolla matrix vehicles. The engine control module (ECM) for the subject models equipped with the 1zz-fe engine and two-wheel drive may have been improperly manufactured. There is a possibility that a crack may develop at certain solder points or on varistors on the circuit board.
Dealers will inspect the production number of the ECM and replace the ECM if necessary. This service will be performed free of charge. Toyota will mail an interim owner notification the middle of September 2010 to advise owners of this defect and recall. This interim notification will inform owners that they will receive a future notification when parts become available to have the free remedy performed on their vehicle. The safety recall began on November 29, 2010. Owners may contact Toyota at 1-800-331-4331.
