Toyota Motor Corp. Monday resumed manufacturing Monday at all domestic plants, with parts availability improving along with efforts to restore its supply chain after the massive March 11 earthquake.

Nissan Motor Co. meanwhile restarted operations at its engine plant in quake-hit Iwaki, Fukushima Prefecture, on Monday, in a sign automakers are making headway toward recovery from the quake and tsunami.

Toyota will continue manufacturing all models until June 3 and will make a decision on production after that date, company officials said.