What happened to shut down Toyota's production in Japan?

Toyota Motor Corp is ramping back production at its Japan-based factories after a computer system breakdown led to the closure of 14 assembly plants, affecting the automaker's lean manufacturing system and potentially costing around $356 million in revenue.

reuters.com

Relevant topic timeline:

8/29/2023

Toyota halts operations at most Japan assembly plants due to system failure

Toyota Motor Corp has suspended operations at a dozen assembly plants in Japan due to a malfunction with its production system, likely bringing to a halt almost all of its domestic output.