The stock prices of major Japanese automakers, including Toyota Motor Corp. (OTC:TOYOF), Mazda Motor Corp. (OTC:MZDAY), Honda Motor Co., Ltd. (OTC:HNDAF), and Suzuki Motor Corp. (OTC:SZKMY), have taken a hit following a safety scandal. What Happened: The Japanese transport ministry discovered that false data was used to certify certain models, leading to a significant drop in the stock prices of these automakers, reported CNBC on Sunday. Toyota, the largest carmaker in Japan, saw its shares plummet by over 5.4% last week, resulting in a market value loss of 2.45 trillion Japanese yen ($15.62 b…