Toyota suspends production at all 14 domestic assembly plants
System failure preventing Toyota from ordering parts
Cause under investigation, not likely to be a cyberattack
Plants make up third of Toyota world output Reuters calculation
Stock closes down 0.2

TOKYO, Aug 29 Reuters Toyota Motor will restart operations at its assembly plants in Japan on Wednesday, after a production system malfunction brought domestic output to a halt at the world39;s biggestselling automaker.

Toyota will resume operations at 25 production lines of a dozen plants in its home market from Wednesday morning and add the final two plants from the afternoon, it said.

The company continues to investigate the cause of the glitch, which it said was not due to a cyberattack and prevented it from ordering components.

The plants together account for about a third of the automaker39;s global production, Reuters calculations showed.

Toyota39;s domestic production had been on the rebound after a series of output cuts it blamed on semiconductor shortages. Output was up 29 in JanuaryJune, the first such increase in two years.

Its Japan output averaged about 13,500 vehicles daily in the first half of the year, Reuters calculations showed. That excludes vehicles from group automakers Daihatsu and Hino.

Operations were halted for a day last year when a supplier suffered a cyberattack, hampering Toyota39;s ability to order parts. Toyota resumed operations using a backup network.

Analysts said Toyota…