jfletter
Posts: 20
Joined: Sun Feb 06, 2022 9:43 pm

Re: Charging halted by malfunction AND Check EV system

fred_dot_u wrote: Thu Aug 18, 2022 9:03 pm Yes, that's correct. I'm not sure where my alleged mind was floating at the time. I had a running Gizmo EV in which I installed a Cycle Analyst. That display was Wh per mile and I grew accustomed to that reference, even though I recognize the figures for miles per kWh.

With respect to the Sport Mode reference. She moved the car about the parking lot and attempted to switch to Sport Mode. The display presented a message that it was unable to enter that mode.

She will make the attempt again on her return home, but I do not expect to see any change. We shall see.
Your current situation sounds eerily like mine during the early days of my failing OBC. The writeup that HokieMatt shared and I believe you read briefly explained that starting symptoms. One plug in would charge the car a few mile, another some more/less miles and another fully charge it. But after a while, I think a month, it stopped charging entirely. I'm going to guess that you will end up in the same boat as me with a failed charger. It will be removed and there will be one or two blown fuses. Hopefully just replacing the fuses will fix the problem. I am luck because I had alflash and Davio's brains and brawn to get my repair done without shelling out $5,000 or more to Toyota. I don't think anyone here knows how to diagnose and fix more than the fuses in a Tesla gen 1 OBC. I would love to diagnose my failed OBC but I am unwilling to take my car apart more than I already did to diagnose the real problem now that my car is working perfectly again.

Trust alflash. While he can't fix your car for you from Ukraine, he can help diagnosing and cycle the EV system before and after any repair.

I am curious, where in Florida do you live? I will be in Miami at the end of October. If it is not too far from there then I might be able to help you if you need it. You can private message me here to exchange personal information if that is of interest to you.
fred_dot_u
Posts: 27
Joined: Tue Dec 06, 2016 2:47 am

Re: Charging halted by malfunction AND Check EV system

I've been exchanging emails with Vladimir and providing the necessary screen shots and data to him. The current status is that remote diagnostics will be necessary, which was more or less expected.

The larger problem is that my physical state is such that I won't be able wrench on the car, regardless of the diagnostic results. I don't have a Waldo with sufficient capability to dismantle the vehicle for repair purposes. Realistically, I don't have any Waldo.

I'm hopeful that once the true status is known, I can find a mechanic with some experience who is able to take on a contract to repair the vehicle. I've read the travails of dealer related service and know that it is something to avoid!

Florida is such a huge state. I'm mid-way East Coast, five to six hours from Miami. I appreciate the offer to assist, but considering that I can't do anything, it's not so much an assist as it is a complete task.

Our previous Rav4EVs were legacy models, a 2002 and a 2003 and I was healthier and had dropped and replaced the battery packs multiple times. Selling one of them was really selling only the motor and power train and the recipient required that I remove it, crate and ship it. That was the last physical task I could accomplish and gravity was on my side.

I'm surprised to consider that a fuse can cause this type of problem and I'm hoping that is the case for my wife's vehicle. Far less expensive than a new/used OBC, but no less labor intensive.

Is it practical to consider to create an "above-ground" test bed if the fuses are replaced? I saw the photos showing the coolant routing through the OBC and all the wiring. It makes sense to be able to test it before buttoning things up. Not creating the test bed would mean that if it is the fuses, the extra work of making a test fixture could be avoided.

The good part of all this is that after two to four plug-in/plug-out cycles, the car charges fully and "normally." I know it's foolish to think this will last forever.

My wife's brain is in the "buy a VW ID.4" mode! I don't want to throw away what could become a fully working Rav4EV.
2013 Rav4EV x 2
Emotorwerks 40A EVSE
plugshared
'03 Gizmo EV (for sale)
Focus Designs SBU 2100 miles! (for sale)
Airwheel S8 scooter
E-assist WAW velomobile (for sale)
alflash
Posts: 189
Joined: Sun Sep 03, 2017 3:46 pm
Location: Ukraine
Contact: Website YouTube

Re: Charging halted by malfunction AND Check EV system

A small part of the diagnostic results
Image

Tomorrow after Confirmation Driving Pattern remote diagnostics will continue with additional checks.
Last edited by alflash on Tue Aug 23, 2022 8:47 pm, edited 1 time in total.
fred_dot_u
Posts: 27
Joined: Tue Dec 06, 2016 2:47 am

Re: Charging halted by malfunction AND Check EV system

The trip to and from work of my wife's car was unremarkable. No error messages appeared.

As per our earlier discussions and with some additional conversations with David, I connected the L1 charging device when the vehicle returned to the house. As usual, the charging made the expected sounds and also as expected, ended after about 30 seconds, with the dash panel message of termination.

The L2 charger connected and began to charge in the normal manner, well beyond the 30 seconds.

This is typical, as I am able to get the charging to start after any number of plug-out/plug-in actions. The highest number has been charging on the 4th sequence, the lowest has been an instant good beginning and all numbers in between.

There is great happiness in the household to feel comfortable with the Check EV System message no longer appearing.
2013 Rav4EV x 2
Emotorwerks 40A EVSE
plugshared
'03 Gizmo EV (for sale)
Focus Designs SBU 2100 miles! (for sale)
Airwheel S8 scooter
E-assist WAW velomobile (for sale)

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