Battery BMS EEPROM

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stradivaria

Member
Joined
Nov 30, 2018
Messages
5
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
 
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?
 
hokiematt said:
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
 
hokiematt said:
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?
Alert Code BMS_w023 on RAV4EV a'14
w0023.png

Image of bad connector
file.php
 
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