Toyota Rav4 EV Forum

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 Post subject: Self Diagnosis
PostPosted: Sat Sep 16, 2017 9:30 pm 
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Joined: Sat Sep 16, 2017 9:07 pm
Posts: 8
Hi all,

I've had my Rav4 since January and have been loving it.

Yesterday when I got in to go home from work it wouldn't start, just says Check EV System.
I have tried jumping it, so it seems to not be the 12v battery. I tried disconnecting it and reconnecting it as well. I left the 12v battery disconnected overnight to see if it would do anything but that didn't help.

So my question is: Is there any way a can try to diagnose this myself? I haven't yet check with Reno Toyota to see if they'll take a look or not yet, and I'm not looking forward to towing it to Auburn which is the closest dealership that the Toyota website says will service the EV. So I'd really like to be able to find out if there's anything else I can look at and maybe fix myself.


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 Post subject: Re: Self Diagnosis
PostPosted: Sun Sep 17, 2017 2:06 am 
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Joined: Thu Jan 17, 2013 11:13 pm
Posts: 1766
Location: Los Altos, CA
If you want to self diagnose, get a ODB computer interface kit and the Toyota Techstream software. At least then you can get some codes to see the nature of the problem.

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2012 Shoreline Blue #1462 w/JdeMO | 2018 Tesla Model 3 LR | 4.32kW Motech/Enphase PV Solar + 2x Powerwall 2 AC| Leviton EVB40 40A & Jesla Home Charging | 2015 e-Golf LE (returned)


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 Post subject: Re: Self Diagnosis
PostPosted: Mon Sep 18, 2017 7:52 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4052
Location: San Diego
If it's the original 12 volt battery, save yourself the frustration. Get a new battery.

Rav4 EV 12 volt Battery recommendations:

https://m.pepboys.com/search/?term=bosch+24f+60ah+agm

I recommend the Bosch or Exide battery with the following specs for around $150-$180:

1) AGM (not flooded acid cells like the original)

2) Group 24F size

3) 60 amp/hour rating


Here are the specific models I recommend:


Bosch S6508B S6 Flat Plate AGM

There is also a Exide battery that is identical, except for superficial color and markings, but normally more expensive.

Exide Edge FP-AGM24F Flat Plate AGM Sealed Automotive Battery

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Tony Williams
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 Post subject: Re: Self Diagnosis
PostPosted: Wed Sep 20, 2017 10:58 pm 
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Joined: Sat Sep 16, 2017 9:07 pm
Posts: 8
Well just found out today the EV battery went bad.. somehow. So now I just have to wait for its replacement to show up.


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 Post subject: Re: Self Diagnosis
PostPosted: Thu Sep 21, 2017 4:02 pm 
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Joined: Wed Nov 09, 2016 7:07 pm
Posts: 49
Location: River Pines, CA
JesseInReno wrote:
Well just found out today the EV battery went bad.. somehow. So now I just have to wait for its replacement to show up.


How many miles and year? Which dealer did you take it to? Can you list the error codes?

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13 RavEV: 2263 Miles: 121,000 and counting w/ JdeMO


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 Post subject: Re: Self Diagnosis
PostPosted: Fri Sep 22, 2017 6:42 pm 
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Joined: Sat Sep 16, 2017 9:07 pm
Posts: 8
It has 53,500 miles and it's a 2013 model. Had a friend tow it to the dealer in Auburn, so I got the diagnosis over the phone, so I didn't get any error codes sadly.

On the up-side I'm getting a new battery pack right? Or will it be a refurb? When I did the Tony-test before it usually came out to about 124 miles so I'm excited to see what the new battery will show.


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 Post subject: Re: Self Diagnosis
PostPosted: Sat Sep 30, 2017 3:41 am 
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Joined: Sat Sep 16, 2017 9:07 pm
Posts: 8
Just got it back today.

The error code they got was "BMS_f073 HV BATTERY DETECTED UNEXPECTED HV BUS BEHAVIOR"

They also replaced front axle seals as they were pretty leaky.


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 Post subject: Re: Self Diagnosis
PostPosted: Sat Sep 30, 2017 3:56 am 
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Joined: Thu Dec 27, 2012 10:55 pm
Posts: 606
JesseInReno wrote:
Just got it back today.
The error code they got was "BMS_f073 HV BATTERY DETECTED UNEXPECTED HV BUS BEHAVIOR"
They also replaced front axle seals as they were pretty leaky.


Could you scan/photo the paperwork you got back with the car ?
Would be very interested what they did to fix it.

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OpenEvse wifi controlled L1/L2 charging
2 x GEM EV, 2019 Chevy Bolt
past ev's: 3 yr leaf 30k, 3yr rav4ev 34k, 3yr rav4ev 25k


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 Post subject: Re: Self Diagnosis
PostPosted: Sat Sep 30, 2017 4:24 am 
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Joined: Sat Sep 16, 2017 9:07 pm
Posts: 8
fromport wrote:
JesseInReno wrote:
Just got it back today.
The error code they got was "BMS_f073 HV BATTERY DETECTED UNEXPECTED HV BUS BEHAVIOR"
They also replaced front axle seals as they were pretty leaky.


Could you scan/photo the paperwork you got back with the car ?
Would be very interested what they did to fix it.


Sure

Pg1
Pg2
Pg3

:)


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 Post subject: Re: Self Diagnosis
PostPosted: Sat Sep 30, 2017 5:06 am 
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Joined: Thu Dec 27, 2012 10:55 pm
Posts: 606
JesseInReno wrote:


And this was all done within a week ?
That is mighty impressive !
Thanks for sharing the photo's

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OpenEvse wifi controlled L1/L2 charging
2 x GEM EV, 2019 Chevy Bolt
past ev's: 3 yr leaf 30k, 3yr rav4ev 34k, 3yr rav4ev 25k


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