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SPlatten
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Tesla Model 3 CAN-BUS Project

I have a Tesla Model 3, I've got a Raspberry Pi 0 W and connected a CAN-BUS USB module and also a 12V to 5V module, this is the parts list:

https://www.amazon.co.uk/dp/B07B8M8YRT?psc=1&ref=ppx_yo2ov_dt_b_product_details

https://www.aliexpress.com/item/1005005281748409.html?spm=a2g0o.order_list.order_list_main.5.7c751802eK6auS

https://www.aliexpress.com/item/1005003444594756.html?spm=a2g0o.order_list.order_list_main.11.7c751802eK6auS

https://www.aliexpress.com/item/1005006032351087.html?spm=a2g0o.order_list.order_list_main.35.7c751802eK6auS

 

I've connected this to my Tesla Model 3 CAN-BUS using the port in the centre console between the front two seats, I have set-up the USB port so when the Raspberry Pi is connected to my home WiFi I can access the CAN-BUS directly on my iMAC as it it was connected to my car.  I used SavvyCAN and Wireshark to sniff the packets and I have downloaded Model3CAN.dbc file to translate some of the information, unfortunately it doesn't translate everything.

I need help to identify the following, message ID's and packet specification for the following data:

Left / Right Indicators

Brakes

Reverse

 

Can anyone help?

 

Thank you

dlarue
I have a 2022 Model Y and

I have a 2022 Model Y and often see Model 3/Y listed so maybe information here is similar. With that I noticed your linked OBDII diag port cable looks like it's only 1 CAN bus but looking at the schematic of the OVMS v3 board it has 3 CAN buses(one onboard via ESP32 and 2 offboard the ESP32). Has something shown you only need the one CAN bus for the Model 3?

grootroot
Model 3 2021

I have the same list of parts but I am using a CANbus to USB connector and plugging directly into my mac to sniff the packets but I am having no success. 

 

Do you an example of what colors map to CAN High/Low for the model 3?

Monroe07
Similar hardware/software as grootroot

I have similar hardware and software and have tried to tap into the same location on my 2022 Tesla Model 3 and have not been able to get any CANBUS traffic.

I have an OBD Link MX+ and Scan My Tesla which works, and I don't know why the CAN-USB / Windows setup doesn't. They both tap into the same set of wires.

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