Comma harness issues?

[Ingen]

I just did the fuse tap as detailed in the Google Doc. However, I just have one question: there is no need to ground? Is it grounding within the harness and/or within the AXM?

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[gerrylum]

I just did the fuse tap as detailed in the Google Doc. However, I just have one question: there is no need to ground? Is it grounding within the harness and/or within the AXM?

That's correct. There's already grounding in the harness itself.

 

[bryanmtl]

Hey everyone -- thought I'd revive an older thread. I'm back with more (I think) harness issues. After solving my camera fault issues for months with the fuse tap, I did the latest Rivian software update (2026.15.0) with the Comma disconnected from the vehicle, but with the harness in place. Since that time, I have a permanent front camera/front sensor fault.

I've tried reseating all the connections (while in deep sleep), rebooting, etc, but I'm stuck. Has anyone else run into similar issues? I'm trying to avoid taking the harness out completely, but I'm running out of options.

 

[gerrylum]

Hey everyone -- thought I'd revive an older thread. I'm back with more (I think) harness issues. After solving my camera fault issues for months with the fuse tap, I did the latest Rivian software update (2026.15.0) with the Comma disconnected from the vehicle, but with the harness in place. Since that time, I have a permanent front camera/front sensor fault.

I've tried reseating all the connections (while in deep sleep), rebooting, etc, but I'm stuck. Has anyone else run into similar issues? I'm trying to avoid taking the harness out completely, but I'm running out of options

Might need to try a 12v reset?

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