Originally Posted by kanakahaol

The dealership claimed that the pump was indeed bad, but only part of the problem and that multiple things must be fixed.

When I look up the code myself I get a variety of different things it could be not just the inverter.

• Faulty Inverter cooling system
• Inverter cooling system harness is open or shorted Inverter cooling system circuit poor electrical connection
• Faulty Water pump with motor assembly
• Faulty Cooling fan motor Faulty No. 2 cooling fan motor
• Faulty Inverter with converter assembly

I have been trying to do some troubleshooting myself, I checked the fuses that correspond to the hybrid system and they seem okay. I even unplugged the battery for a while just so the system could reset, I drove it around after that and it was working great the batteries were charging and the EV mode was working, but then 30 minutes later the message came back up.

Also, as mentioned in my first message when I look at the coolant reservoir it is not churning, is this normal? I would expect that I should see some movement.