Toyota on April 18 resumed operations at all its domestic plants that had been halted since the March 11 earthquake and tsunami.
The auto giant said it had begun measuring the radiation levels of its export vehicles, parts for overseas assembly and service parts and found no abnormalities amid Japan's ongoing nuclear crisis.
Of the Toyota group's 18 assembly plants in Japan, three had already been in operation and the rest resumed production on March 18.
"The plants are operating with about 50% of production due to the shortage of auto parts," a Toyota spokeswoman said.
The firm plans to continue at the current capacity until June 3, with production halting during the Golden Week holiday between late April and early May.
The plants that resumed operation included sites in quake-hit Miyagi and Iwate prefectures.
A component supply crisis has strangled auto production in Japan and enforced a slowdown overseas in the wake of the March 11 disasters, and analysts say it will last several months amid continued power outages.
Copyright Agence France-Presse, 2011
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