08 toyota prius p0a93

Question

need to know the cause of this code iit says drive motor b performance

Answer 1

P0A93 Invertor cooling system performance

This is a important code it affects the invertor as it is cooled by its own cooling system,and its own radiator (resovoir)  If this code goes on neglected you can be sure of a invertor failure,The invertor generates heat, and it has it own waterpump which this code depicts,