Toyota Rav4 EV Forum

It is currently Mon Dec 10, 2018 3:44 am

All times are UTC [ DST ]




Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Battery BMS EEPROM
PostPosted: Fri Nov 30, 2018 9:58 am 
Offline

Joined: Fri Nov 30, 2018 9:34 am
Posts: 4
Hi,
Did anybody experience with W023 fault code in BMS system? It looks like the fault is about contractors. By Tesla, I know it is a special procedure to erase it.
So, I decided to go another way. I took the battery down, read data from EEPROM. So, now I need data from another BMS, does anybody read it before and could share it with me, if it is clean, without faults... :)

Raimondas


Top
 Profile  
 
 Post subject: Re: Battery BMS EEPROM
PostPosted: Fri Nov 30, 2018 3:44 pm 
Offline

Joined: Thu Nov 02, 2017 8:57 pm
Posts: 15
Location: Salisbury, NC
The BMS_w023 fault code is for the contactors opening due to hardware overcurrent; have you addressed this problem?

While this is a valid Tesla fault code, it is not listed as a fault code for the Rav4 EV. What vehicle do you have?


Top
 Profile  
 
 Post subject: Re: Battery BMS EEPROM
PostPosted: Mon Dec 03, 2018 8:45 am 
Offline

Joined: Fri Nov 30, 2018 9:34 am
Posts: 4
hokiematt wrote:
The BMS_w023 fault code is for the contactors opening due to hardware overcurrent; have you addressed this problem?

While this is a valid Tesla fault code, it is not listed as a fault code for the Rav4 EV. What vehicle do you have?


Hi, yes, know what kind of fault it is :) the question is, how to erase it from the memory? It does not disappear after replacing contractors. I already reprogrammed BMS with other SW from another car, but it transfers his faults :)

I have Toyota RAV 4 EV


Top
 Profile  
 
 Post subject: Re: Battery BMS EEPROM
PostPosted: Mon Dec 03, 2018 2:07 pm 
Offline

Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3997
Location: San Diego
I have a battery with the same problem. The contactors seem ok, yet there’s still a BMS error for “battery contactors”.

If you call me at+1 (760) 798-0342, perhaps we can figure this out.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
© Toyota Rav4 EV Forum - part of the MyElectricCarForums.com Group