In the wake of a disastrous year for Toyota, it seems the problems are not completely over for the car company.

After a massive recall of over 10 million automobiles around the world due to safety problems (brake failure, floor mats that pressed onto accelerators, and defective gas pedals), Toyota is familiar with crisis control. Now, it seems the problem lies in “improper coating on circuit boards and a crack in the surface of a glass coating,” according to the Detroit Free Press. This flaw is resulting in the engine stalling in vehicles like the Toyota Corolla and the Matrix hatch back.

The National Highway Traffic Safety Administration is conducting a full investigation of the cars, the affected years between 2005 and 2007. Toyota is hoping to avoid another massive recall of their vehicles. The investigation will determine whether a recall due to safety concerns will be necessary or not.

Auto Shippers wishes Toyota good luck in the investigation, and hopes the problem is pinned down and solved quickly.