2010 Pruis II, with 54k Miles has Bad Inverter. 3-4 week wait

I use my IPad. You could also use an iPhone. You would need to buy an ELM327 wifi adapter ($15, Amazon) for the ODBII port. The app is EngineLink HD (about $5).

I strap my IPad down with an old belt. See picture.

 

Thanks for that!

I have a ScanGuage, and see now there's an XGauge (additional gauges you can program in), will give that a try:

 

That's great! I like the fact so many items can be displayed at once on one page. I use the largest gauges available, but I could double the information if I used the smaller gauges. I'd have a hard time reading it though. The program I use has 3 pages that can be swiped to quickly. On page two I monitor the battery volts and page three is ohm. See pictures.

 

Well, I have 4 gauges, that can be changed with tedious button pushing. Go too fast and you whip right by, have to scroll thru them again.

 

If it's of interest to you and you own an IPad, you could buy a "Y" splitter for two ODBII ports, and buy the ELM327 wifi adapter. The total cost would be about $25 plus the cost of the "Y" splitter.

You could have an overload of info from two units.

 

Sure that cycle happens all the time in a typical drive.

But I'm thinking, a long slope down a hill puts the battery fully topped up and the system looking to burn it off thru the motors. The acceleration up the hill may generate excess energy from the ICE that also needs to be burned off. So now both battery and ICE attempting to burn excess electrons at the same time are pouring max electrons to the inverter for a much longer time than a typical drive. With a series of slopes electricity will almost always be near a state of excess and the THS always trying to burn it off. Over a long string of hills the heat on that inverter may not have enough time to dissipate....the ICE next to it at max temp climbing slopes won't help either.

 

You could be right. Toyota changed the software to not over burden the inverter. If the battery is fully charged, the inverter just turns off, it doesn't overload from too much current flow. Heat is usually what toasts electrical components, as well as shorts/opens from vibration or sudden shock.

If inverters are failing from just normal driving (downhill charging followed by acceleration uphill is normal driving) there is a defect in the design that needs to be changed. I'm hoping the software update during the recall has fixed this problem.

 

Good to hear. Shiny new inverter?