Does this pack really work with same can messages as Hyundai Kona? Can someone confirm?

In my case, diode test failed on one phase. So it might be different for you then..

I have had overcurrent error that comes immediately when switch direction to D or R when I broke my LDU with regen. Contactors got lifted during regen and one phase got fried. Had to get new motor to "fix" that. Maybe something similar accidentally happened to your SDU?

At least on LDU the minimum voltage seems to be around 220, if you go lower on voltage, power is immediately cut to like 25% and you can feel that there is some kind of limp mode/failsafe mode that it enters. Immediately when voltage goes up, power returns. Running SDU with 50V.. I would think that ...

Oh ok. Would like to hear what kind of issues people have had?

Also interested to hear what would be the best alternative option if not using this board.

Tesla SDU board is out of stock in openinverter shop. Any idea when it's back on stock?

Dual motors, one wheel drive

More info. So reading those bytes as 16 bit little endian to get value around 10000 when everything is ok. Once + or - value starts to deviate enough, there is a problem. SBox runs test cycle for -40v -> +40v with some logic, and this test cycle can take like 20-30 seconds. There seems to be some ...

Safetybox/SBox HV Isolation meter!

Started going through can messages for how Safetybox reports HV isolation and found out that it actually has HV isolation meter and transmits info in message 0x600 (at least on BMW X5 Sbox). Data is presented in two pairs of bytes, one for HV- and one for HV ...

Did you get this to work?

I had one G-series gear selector and looked a bit into that, but as I didn't actual G-series car, I wasn't able to do much with it. I saw it outputs some messages for few seconds and then shuts down. It needs some can messages to wake it up / keep it awake. I think it's ...

I tested some of those messages that you found, but X5 battery does not have all of them. I was able to use those balancing bits. But the message always say that all cells are balancing, not per cell group and no additional info about the balancing process. I guess you have i3 battery? That seems to ...

Full id assignment and swapping the modules in daisy chain got rid of the 0x10 error. The other issue I mentioned in other thread was solved by finding hard coded module amount when requesting voltages.

I swapped the order of the modules in daisy-chain and ran unassigned + assigned the module Id's few times and now the error is gone! Magic

Also if the BMS modules go into fault states they need to be reset, is also in the SimpBMS code.


I'm getting error state for 0x10 for 3 modules. I was checking SimpBMS code but clearing faults is commented out

https://github.com/Tom-evnut/BMWPhevBMS/blob ...

Ahh! Solved it! It was a lone "6" in the code where it sends voltage requests for bms master.

Changing this to 12 made it work. (In BMWPhevBMS.ino, line around 3333)


///////module id cycling/////////
if (nextmes == 6) {


I bought access to bmwtechinfo.com (old newtis) for 24h to check some ...

It might be that they preconfigure all those cards with same firmware that needs to be coded/paired with the car. So by default it would be only for 6 and that's why it's finding the modules but not showing voltages or temps correctly. I guess the next question is: what can messages they might be ...

Running my Teensy 4.1 fork of your BMWPhevBMS version https://github.com/amattila/BMWPhevBMS-Teensy41/

That csc master is only sold for newer BMW X5 45e, which has 12 modules. So I would think it's configured for 12 by default.

Got lucky and my local BMW dealer had that exact same master csc with same part number (200€). So I plugged it in and can-bus is back alive. Now testing with SimpBMS, I can see all 12 modules appear, but voltages and temps only for first 6 modules.

BMS Status : 1 Ready 48
Out:0000 Cont:0000 In ...

Most likely needs coding in a full pack and possibly car before its happy.


Hopefully not. I guess nobody has tried to swap that before.

But yeah, in worst case, it could be that even used one might need some coding with the car. That would be practically impossible. This mistake might have ...

Oh! BMW sells these separately! https://parts.bmwmonterey.com/p/Bmw_202 ... 69525.html

I wonder will they work with existing slaves.

I’m unfortunate to join this thread. I accidentally gave 12V for the master slave (gen2) and now it won’t respond
to can messages anymore. It pulls power about 0,6 amps and about 1A when giving interlock 5V. Can bus shows steady 2.5V all the time but won’t respond to any messages. I think I might ...

1. Wire Connections

Yellow = Ignition (12V)
Yellow/Black = CAN High
Yellow/Brown = CAN Low
CAN bus speed = 500 kbps

2. Send Required CAN Messages

Mandatory messages:

0x130 (Terminal status) every 100ms
Example: 0x45 0x41 0x21 0x8F 0x24

0x1A0 (Vehicle speed — affects assist level) every 50ms ...

Yeah, you need to have the Arduino+Can shield permanently working in the car, emulating the Mini canbus messages. You can't just enable it once, even if it would work for a while without can communication.

Hi mane2,
Could you please send me the FlexCAN_T4.h library link that you used for your code
The current version has been modified and gives a bunch of errors when I try to compile and upload the code.
I really appreciate your help.


If you clone the repo, open it with VS Code and have ...

Update from the paintshop. Turbo flares and front lip installed. Prepping for the paint.