Joining a chorus of ailing U.S. automakers, Toyota Motor Co. (TM) yesterday (Monday) forecast its first operating loss in 71 years on plummeting demand and sharp appreciation of the Japanese yen. The announcement prompted Moody’s Investors Service to consider downgrading the company’s top-rated credit.

But the news may have bigger implications for Japan’s entire economy, as the country’s exports continue to take a beating from sagging worldwide demand for its products.

Japanese exports plunged 26.7% in November from a year ago. Shipments to the U.S. slid an unprecedented 34%, Japan’s Finance Ministry said. A strong yen, which makes Japanese goods more expensive, combined with deflated consumer spending, is hammering Japanese exporters.

Toyota will post a $1.7 billion (150 billion yen) loss in the year through March, it said in a statement, scrapping a previous forecast of a $6.6 billion. The last time Toyota posted an operating loss was in the year ended March 1938, spokesman Hideaki Homma told Bloomberg News.