Car Problem Reports

Toyota Prius The Power Inverter Coolant Pump May Fail

Toyota Prius Problem
16 Reports
Me Too

Model Years Affected: 2004, 2005, 2006, 2007, 2008

Engine Affected: 1.5L 4 Cylinder

Average Mileage: 89,588 mi (50,000 mi - 165,000 mi)


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.

  • Visitor, , 55,000 mi

    Same as described. Dealer had car for 2 weeks. "Cooling pump inverter on back-order"
    Am picking up today and will se what they charge, if anything.
    I think this should be covered under drive-train and/or hybrid battery warranty.

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  • Visitor, , 97,000 mi

    I had the same problem and I called Toyota they also said my car is not part of the recall. Yet the problem I had is exactly the same as they described for the recall.

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  • Visitor, , 95,000 mi

    I got my Prius cooling coil replaced and on the way back home I tested the car by pushing it down and next few minutes...I wan standing on the road looking at the most illuminated panel of my car...the mechanics failed to check the coolant level and the car had gone hot...the system shut down the ac system and with temperatures ranging in 40 Celsius it was difficult to sit in the car especially with its blower was throwing hot the car checked through Toyota and they say it's related to inverter cooling system which might have gone faulty.....anyways the car will be sent to workshop on Monday next and than we will see what does it cost to have it repaired / replaced....needless to mention that Toyota does not cover such reported and established errors in Pakistan.

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  • Visitor, , 50,000 mi

    Air conditioner was blowing hot air. Took my car in to Toyota and they quoted me $7400.00 to replace the inverter! What???

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  • Visitor, , 1.5L 4 Cylinder

    I had the dealer replace the The power inverter coolant pump may fail,
    there is a recall for this issue but the dealer said that my car does not show this recall , so I end up paying
    $350 or so for this servive,

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  • Visitor, , 1.5L 4 Cylinder, 59,000 mi

    Second time this has occurred - around 40,000 and now 59,000. Toyota just issued a recall.

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  •  Rookie

    All warning lights turn on after driving a certain speed on highway after about 10-15 minutes driving time

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