wildlife R1T
Member
- Joined
- Feb 24, 2025
- Messages
- 46
- Reaction score
- 7
- Rivian
- 2024 R1T
As a mechanic and an aspiring electrical engineer, I have interest in understanding the inner workings of my R1T. I also am an avid supporter of the right to repair movement, so I wish to make a place to post information related to vehicle diagnostics, scantool, and networking. Here are some things I've learned:
R1T has an OBD2 port on the bottom left of the dash. No CAN bus lines are there. However, there are 4 Ethernet pins and an activation pin similar to many European cars that use DOIP. Power on pin 16, ground on pins 4 and 5. See below picture for the harness I made.

Unfortunately, the vehicle does not respond to standard DOIP messaging and I don't have a Rivian scantool, so I can't confirm that diagnostic data can be read at this port.
I also discovered at least 5 CAN bus networks running through the passenger side kick panel nearest the door. Unfortunately I don't have any DBC files to decifer what they are saying though. Feel free to post if anyone has any useful diagnostic or CAN info.
R1T has an OBD2 port on the bottom left of the dash. No CAN bus lines are there. However, there are 4 Ethernet pins and an activation pin similar to many European cars that use DOIP. Power on pin 16, ground on pins 4 and 5. See below picture for the harness I made.

Unfortunately, the vehicle does not respond to standard DOIP messaging and I don't have a Rivian scantool, so I can't confirm that diagnostic data can be read at this port.
I also discovered at least 5 CAN bus networks running through the passenger side kick panel nearest the door. Unfortunately I don't have any DBC files to decifer what they are saying though. Feel free to post if anyone has any useful diagnostic or CAN info.