I wish to add battery storage to my existing grid tied system. I plan to use Taycan battery modules with WDR gateway and 10-12kW hybrid inverter AC coupled to the exiting system. The Deye hybrid inverters have been recommended. However, I cannot find anyone on Alibaba (the only place I have found ...

Mitchy, Thanks again for the help. Yes, I plan to spoof these with the Zombieverter.

Further work with the log has revealed that the unit needs only these CAN addresses:
0x100
0x103
0x105

Electrical connections are +12V, -12V and 3 signal pins: Can+, Can-, and T15. I have noticed that after power up and initialization, the rack no longer needs T15 and 0x105. It will work with only ...

Thanks for the log, Mitchy. The assist does work with the log (I was beginning to wonder if my rack was bad). I'm starting to look into what commands are needed and will update with my results.

I should be able to get some logs for you today. Weather is cooperating for a run around the block.
I can also send along some code to generate motor_03 if needed.


Thanks. Even a log sitting at idle would be a good start. Thanks also for the code, i I did see the earlier example. I'm just ...

The MQB steering rack logs have ESP_21 and Klemmen_Status_01 but not Motor_03. I plan to add it to an MQB log to see if it will work. From what I can find, Motor_03 needs to be transmitted every 10ms but I don't understand how to create data for it. What would be valid data to try for Motor_03?

Mitchy wrote: ↑Thu Jul 03, 2025 11:53 am Do you have any micro controller to allow sending custom CAN messages?

Yes, I have the ability to send custom can messages. I'm happy to try any suggestions. None of the logs from the MQB Reverse Engineering topic seem to have any effect.

The Can addresses it sends out are:
0x09F
0x11D
0x32A
0x6C9

I have tried playing the full driving and 0x0FD logs from the MQB Reverse Engineering topic without success. I will try them again.

I'm wanting to use a 2013 Boxster electric steering rack, p/n 001.347.005.09 in a conversion. I have been able to power it up and see communication on the can bus, but have not been able to get beyond failsafe mode. I have tried playing back logs from the MQB and Mini Cooper power steering posts on ...

Westside EV in the US sells a cardboard mockup of the model S/X battery module.

Had a similar leak in my SDU. Found that the temperature sensor wire plug was not fully seated. You can see the photos and description here: viewtopic.php?t=4143

Had a similar problem on my SDU. Discovered the temperature sensor plug was not fully seated. From the inverter side, the plug cannot be completely pulled out because of a stop. When out as far as it will go, you can feel the o-ring engaged in the hole. Pushed further in, the o-ring disengages. Mine ...

I'm working on designing a battery box with Taycan modules. The shape of the box from the side looks like an inverted L. In order to minimize parts, I would like to place modules on both sides of a cooling plate. This would require modules 1 & 2 to be right side up, modules 3 & 4 to be upside down ...

Thanks, I will begin looking for the best pressure equalization valve and add my findings to the wiki.

I'm in the process of designing my battery box. Checking the forum and wiki, it seems the general consensus is that it is better to seal the box. My climate has an annual temperature range of -5 to 40C. Is it a good idea to include some sort of pressure equalization valve and/or a drain for moisture?

Yes when supplying just 12v and ground the power light stays on but actty led does not light. Any ideas on what I could try or test to further figure out the issue? I’m just stuck here


Just to confirm, did you disconnect from the PCS for this test? Also, you might try removing the wifi board ...

I have hooked up the Zombieverter and shifter on my bench and it works beautifully. Thank you to all who developed this feature. I tried it with Can buses 1 & 2 individually and together - all worked. Does the Zombieverter use the redundancy of the 2 buses, or is there a reason to connect both buses ...

I assume the CAN-able bootloader is flashed to the VCU as well?


Is there a way I can verify the version of the bootloader? I'm using the version that came with the Zombie board.

I looked into boot at powerup more closely. The Zombie will send the "hello" frames on 0x7DE until it gets a ...

What are the settings of your CAN logger when logging? Is it set to listen only?

It sounds like possible that Tesla SDU does not acknowledge any CAN frames.


I found the settings. My logger was set in normal mode. When I changed to listen only, the Zombie does not start the SDU. It does start ...

I was not able to easily find the settings. I also questioned if it was just listening. I will look again. The program I'm using is BusMaster.

The SDU and Zombie are terminated.

In trying to get as close to Damien's implementation as I can, I added an ISA shunt to the bus (I don't have any of the other components). It is stubbed about 1/3 of the way between the Zombie and SDU and is unterminated. With power to the shunt, Zombie DOES start the SDU. To summarize the rest of ...

I tested with SDU power supplied by a relay controlled with the inverter power relay pin. It seems to be part but not all of the solution. It does not put the SDU in run mode alone. When I tried to get a log, it does put the SDU in run mode. I believe I isolated the difference: when the logger is ...

tom91 wrote: ↑Wed Dec 04, 2024 10:18 am Please use the Zombie- Inverter Power relay pin. This is a pull to ground pin to switch a relay that then provides power to SDU.

I will do the test when I get home this afternoon.

I have attached a log. Wasn't able to get my hardware working with savvycan but got it working with busmaster.

Power sequencing was mentioned earlier. My bench setup has both the SDU and Zombie power up at the same time (including T15) from a 12v car battery through a 5A fuse. I do not have a ...