alflash
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Re: How I fixed my RAV4 EV On-Board Charger

fred_dot_u wrote: Mon Aug 29, 2022 4:24 pm An update on the wife's vehicle troubles.
...
I'm hoping the local mechanic is current with Toyota's tech pages and can get everything he needs.

Updates as warranted.
Thanks for your post!

Note. Anyone can legally/lawfully buy access* to all technical materials related to the maintenance, diagnostics, checking and repair of this model and all others.
For example,
Image

*
Although this Toyota site recently stole $247 from me,
https://techinfo.snapon.com/TIS/Register.aspx
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alflash
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Re: How I fixed my RAV4 EV On-Board Charger

alflash wrote: Wed Aug 24, 2022 1:24 am
jfletter wrote: Thu Aug 18, 2022 3:29 am
fred_dot_u wrote: Tue Aug 16, 2022 10:48 pm The vehicle does charge after two to four engage/disengage cycles with the handle at the charging port. I would have expected if there is a problem with the fuses that it would be a consistent failure to charge. Of course, that makes it more likely to be a charger failure, doesn't it?
fred_dot_u, confirm this with others, but many have had the same problem that you seem to have, charger cycles for several seconds and then fails to charge. In most cases it is just the fuses and not a faulty charger. Yes, the cost of a replacement charger is reasonable, $250-$350 is where we were, but it is $250 you may not need to spend. Of course taking out the charger, replacing the fuses, and putting back in, only to find out that it still does not work is incredibly frustrating.
...
I hope these thoughts help.
Update
As note.
I want to draw your attention to the fact that at the beginning (for example, at the first attempt and at 2nd and at 3nd), on fred_dot_u vehicle charging DOES NOT START.
However, charging does not start instantly and in the absence of a malfunction.
The process ALWAYS begins with a system health check. If some kind of malfunction is detected, then several more attempts are made to check and, if they also detect / confirm a malfunction, then the system is turned off.
After each of these attempts is unsuccessful, then after each time a fault code is recorded.
After the last failed attempt, the charger gets the Faulty status, and the contactors is disabled.
Depending on the cause / symptom of the malfunction, different codes may be recorded in the system. And the fuse fault code has a different cause than the "overcurrent" series codes...
And at the same time. If the Tesla software is inconsistent, the system determines the corresponding fault codes*.
And, if the problem is with charger hardware ID, then the RAV4EV charger can be reprogrammed*.
* Image
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fred_dot_u
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Re: How I fixed my RAV4 EV On-Board Charger

Vlad, can the Tesla software re-program the charger?
2013 Rav4EV x 2
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alflash
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Re: How I fixed my RAV4 EV On-Board Charger

fred_dot_u wrote: Thu Oct 20, 2022 11:31 pm Vlad, can the Tesla software re-program the charger?
Unambiguously/accurately and responsibly, I can answer this question only after the program reports the Software Configuration values ​​​​after installing the donor-charger and trying to actually reprogram.
Successful reprogramming after replacing bad RAV4EV PCB in Tesla charger assembly show in
https://youtu.be/85oQ5CRNq0U

There are also failures when a newer version is installed in the ECU and the program cannot "roll back" / return to the previous older versions.
For example,
Image
Image
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fred_dot_u
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Re: How I fixed my RAV4 EV On-Board Charger

That video was encouraging, thank you for posting it.

For the second image, indicating a failure, what makes the solution?
2013 Rav4EV x 2
Emotorwerks 40A EVSE
plugshared
'03 Gizmo EV (for sale)
Focus Designs SBU 2100 miles! (for sale)
Airwheel S8 scooter x3
alflash
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Re: How I fixed my RAV4 EV On-Board Charger

fred_dot_u wrote: Sat Oct 22, 2022 6:11 pm That video was encouraging, thank you for posting it.

For the second image, indicating a failure, what makes the solution?
Unfortunately, for the second and third cases, I don't have a solution.
Although Jim's example ( https://1drv.ms/b/s!AtSKKmN-5msBg_oYXNH9E1vYZ_8bDA ) shows that sometimes you can use the native control board and the "components" (all other elements) of the donor unit.
fred_dot_u
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Joined: Tue Dec 06, 2016 2:47 am

Re: How I fixed my RAV4 EV On-Board Charger

I suppose there's little choice but to move onward and hope for the best.
2013 Rav4EV x 2
Emotorwerks 40A EVSE
plugshared
'03 Gizmo EV (for sale)
Focus Designs SBU 2100 miles! (for sale)
Airwheel S8 scooter x3
alflash
Posts: 244
Joined: Sun Sep 03, 2017 3:46 pm
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Re: How I fixed my RAV4 EV On-Board Charger

fred_dot_u wrote: Sat Oct 22, 2022 9:46 pm I suppose there's little choice but to move onward and hope for the best.
Now the vehicle is charging from the 3rd - 4th attempt.
Just a question. Why not continue to be / "put up" with such a situation?
Replacing a Charger is a technically complex and time-consuming task / work, in addition, the serviceability and adequacy of the purchased used Charger is unknown ...
Best Regards,
fred_dot_u
Posts: 47
Joined: Tue Dec 06, 2016 2:47 am

Re: How I fixed my RAV4 EV On-Board Charger

I have also considered to continue to use the vehicle in current condition, for exactly the reason you suggest.

It is very easy to connect/disconnect two to six time than it is to remove and install charger.

The charger I have purchased will be available when it is required and will not have problems if time passes.
2013 Rav4EV x 2
Emotorwerks 40A EVSE
plugshared
'03 Gizmo EV (for sale)
Focus Designs SBU 2100 miles! (for sale)
Airwheel S8 scooter x3
alflash
Posts: 244
Joined: Sun Sep 03, 2017 3:46 pm
Location: Ukraine
Contact: Website YouTube

Re: How I fixed my RAV4 EV On-Board Charger

fred_dot_u wrote: Sun Oct 23, 2022 6:41 pm I have also considered to continue to use the vehicle in current condition, for exactly the reason you suggest.

It is very easy to connect/disconnect two to six time than it is to remove and install charger.

The charger I have purchased will be available when it is required and will not have problems if time passes.
I agree.
And at any convenient time, we can again do remote diagnostics (free for charge) to find out that a new one has appeared in the Tesla system...
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