The Power Inverter Coolant Pump May Fail on Toyota Prius

Submitted by Jim Taddei · Aug 29, 2025
Published by RepairPal

Problem overview

The power inverter coolant pump may fail resulting in illumination of the Check Engine Light associated with fault code P0A93 stored. Our technicians tell us the power inverter coolant pump should be replaced if this occurs. A revised pump is available for 2004-2006 models, Toyota service bulletin #EG001-07.

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