Inverter Failure 2013 v no ready light many lightson

Here are a few more data points. The inverter reflash versions, apparently called calibrations, and more questions about using techstream to id the inverter to the network. Some ecus require the vehicle’s vin and immobolizer numbers be written to function. This is not clear in the instructions for the inverter’s ecu although a reflash is part of the procedure. I would check with a dealer and find out if an inverter can just be swapped or a techstream update is essential. Firmware update https://static.nhtsa.gov/odi/rcl/2015/RCRIT-15V449-7373.pdf


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Some questions, unrelated to what you are doing right at the moment...

But did you buy this vehicle used?
Did you buy it used from a Toyota Dealer?
Did you take it to a Toyota Dealer sometime between the problems today, and first purchase?

If you bought it from a Toyota Dealer, the reflash should of been done before it was sold to you. Then you would have the extended warranty.
If before all this happened you took it to a Toyota dealer and service department for regular or routine service, IMO they should of recognized the reflash wasn't done.
If they can tell you today, with assurance that the reflash was NOT done, so you don't qualify for warranty coverage, they should of been able to recognize that same thing BEFORE all this happened and done the reflash.

With 194,000 miles on the vehicle, it's a hard argument to win, but it's a shame the reflash wasn't done by previous ownership or before it was sold to you.
Toyota might of said you were out of luck anyway, but I would of at least gave it a shot.

Good Luck from here.

 

Having the inverter update solves nothing if the power transistors have already been damaged but have not failed yet. In fact there is a California dealer trying to sue Toyota for this very reason, eg alleging they did not step up and simply replace the inverters rather than try a cheap reflash to reduce the peak loads. Reason: cars failing in unsafe locations such as on the freeway with virtually no warning to the driver when it was predictable the inverters would fail based on accumulated runtime (eg high mileage) at the time of the recall.

 

That sounds promising.

 

I think I would make sure the battery service plug was engaged properly. Some have pulled this and did not put it back properly, apparently with a final slide motion that actually engages it. While I was at the plug, I might try to ohm out the fuse in the plug assembly. With those good, I would take it to a dealer. If a warranty inverter is still possible they would know. If firmware and vin downloads are needed, there are few other options. Realize that some service advisors do not have a detailed working knowledge of hybrid sytems as they do not see that many failures and their tech goes by Toyota’s detailed step by step procedures using Techstream diagnostics. If it is something in the battery or wiring, then they could diagnose it and at least point you in the correct direction. However, if you absolutely do not want to tow it to the dealer, you could still go down without the car and perhaps answer some of the questions if you are lucky.

 

sorry to hear, all the best!

 

Great to hear!

 

Glad to hear this worked out in this instance, but what this instance also suggests is the IMG firmware TSB re-flash either did not completely solve the problem, or damage done prior to the reflash eventually manifested as a total inverter failure. Bears watching.

 

Hope everything works out with your health and your car. We don't need any extra aggravations in our lives.

 

Maybe closing the barn doors after the horses have bolted?

 

Perhaps that's why the warranty was extended -- to cover the eventuality of pre-flash damage later manifesting as failure.