Prius Inverter Pump Failure

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. The pump can also seize if it s run dry.

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This recall ended november 30th 2013.

Prius inverter pump failure.

Inverter failure with code p0a08 p0a09. The toyota prius inverter pump replacement was covered by toyota for model years 2004 2007. Toyota prius inverter water pump recall all hybrids have inverters assemblies that translate high voltage direct current dc of the battery into alternating current ac for the motor generator s. I recommend checking that the connections to the 12v are properly secured and not horribly corroded either.

The chopping and reconstituting of current creates heat which must be dissipated for the components to last. The prius has warning lights on the dash and may or may not drive but diagnostic code p0a08 not to be confused with hybrid battery code p0a80 and or p0a09 code are logged. Toyota expands prius recall reveals up to 20 000 hybrid inverters failed roger hogan left and sons roger hogan and stephen hogan at their family dealership toyota of claremont. The pump s dc brushless motor can fail internally causing permanent or intermittent failure.

Toyota prius 2009 04 the inverter coolant pump frequently requires replacement due to stalling of the original internal im. A revised pump is available for 2004 2006 models toyota service bulletin eg001 07. Part 601 015 application summary. 95 people reported this problem.

These codes can mean that the hybrid inverter has failed or the 12v battery is weak improperly connected. Pumps that are now failing are rearing their ugly heads. Toyota stands behind the effectiveness and appropriateness of the prius inverter recall remedy which was designed to ensure operation of the vehicle in failsafe driving mode in the unlikely event.