Mitsubishi Motors executive Tetsuro Aikawa today announced that he is assuming responsibility for the company’s recent fuel economy ratings scandal and resigning from his position as president. Mitsubishi Chairman Osamu Masuko will serve as interim president while Nissan Motors moves forward with its acquisition of a 34% stake in the company.

Aikawa emerged through the ranks of the manufacturer after starting his career in the product development division of Mitsubishi, the unit that was responsible for the falsification of the data. He is expected to leave the company by either the June shareholders meeting or once an outside investigation reports on its findings in July.

On Wednesday, Mitsubishi is scheduled to submit its report to Japan’s transport ministry, outlining the results of its internal investigation into illicit manipulation of fuel economy ratings for its minicars.