TOKYO – Japan’s top four carmakers are recalling a total of 3.4 million cars over a defect in passenger airbags. Toyota, which is recalling 1.7 million cars, said the vehicles had a defective part which "could cause the airbag inflator to rupture and deploy the airbag abnormally in a crash”.Globally, Honda is recalling 1.1 million cars, Nissan almost 500,000 and Mazda 45,000.In the UK, Toyota, Nissan and Honda are all recalling certain models, including Terrano II, Navara, 400 Jazz and Civic, Corolla and Yaris.The cars were sold in the years 2000 to 2004, and the firms said the defective part was supplied by parts maker Takata Corp.