Tip & How-To about 2003 Toyota Corolla
There is a known issue with the 2005-2007 Corolla automatic transmission shift logic. The shift points may seem harsh, and the Check Engine light may be illuminated.
There is a technical service bulletin published (TC015-07) that will address and rectify this condition.
The diagnostic code P2716 will be stored in the computer memory. The procedure involves replacing the Engine Control Module (the computer) with an updated unit.
The repair is covered, under the factory warranty, for 96 months, or 80,000 miles, which ever comes first.
I hope that this helps Corolla owners out.
Posted by Toyota Ed on
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