Inverter Water Pump vs Coolant control 04

The inverter coolant pump circulates coolant in the inverter/transaxle coolant loop. It is located behind the driver's headlight assembly. Your second photo shows an inverter coolant pump which is not mounted to the shiny metal bracket which comes with the pump and attaches to the pump base.

The engine coolant valve can switch engine coolant flow between the cabin heater core and the coolant heat recovery system canister.

DTC P0A93 means that the inverter cooling system has failed. Usually that is because the inverter coolant pump died, and this can be verified by looking for fluid turbulence in the inverter coolant reservoir when the Prius is IG-ON or READY. If you don't see this then the pump is not working or there is air trapped in the system.

The inverter coolant pump was the subject of a recent Limited Service Campaign, which expired in November 2013.

 

The first photo shows a valve, not a pump. That valve is in the engine coolant loop and has nothing to do with P0A93.

The second photo shows the correct inverter coolant pump, the only issue is that particular pump happens to not be mounted to the metal bracket. When you buy the correct pump, it will come with a bracket.

 

Please see my post #2, first paragraph, second sentence.

 

So if there is turbulence inside the inverter Reservoir does that mean it's working or it's not working?

Posted via the PriusChat mobile app.

 

Turbulence means the inverter coolant pump is working.