Japan Says Mazda, Suzuki, Yamaha Motor Carried out Improper Testing

Japan Says Mazda, Suzuki, Yamaha Motor Carried out Improper Testing
Logos of Mazda, Suzuki and Yamaha in file photos Credits: Mazda, Kim Kyung-Hoon; Suzuki and Yamaha, Toru Hanai/Reuters
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TOKYO—Mazda Motor Corp, Suzuki Motor Corp and Yamaha Motor Co conducted improper fuel economy and emissions tests on their vehicles, Japan’s transport ministry said on Aug. 9.

The report is the latest episode in a growing list of data falsifications in Japan that has tarnished the image of the country’s manufacturing industry, known for high-quality, efficient production.