Pacifica 2017 Hybrid : "ACC/FCW Unavailable Service Required" in dashboard

[gboudreau]

Describe the bug

Last evening, during a drive 918f274474111392|2023-03-06--19-29-07--11, at around 19h41 I think, the car started complaining about "ACC/FCW Unavailable Service Required" on its dashboard.
The comma (running openpilot level branch) also complained that something was wrong and that I should restart the car to engage.
So at the next red light, I stopped the car for a few seconds and restarted it. This is where this drive ends, and the next one starts: 918f274474111392|2023-03-06--19-41-55.
At this point, the comma showed an unrecognized car (in useradmin.comma.ai, platform = mock for this drive).
When I arrived home, I stopped the car (plugged it in) and tried again. Same thing. This was around 19h51.
More than 20 mins later, I tried again to start the car. The warnings are now gone. 918f274474111392|2023-03-06--20-16-30

I'm worried that the comma's panda was somehow responsible for the car's FCW system being disabled...
Is there anything I could try to debug this further?

Which car does this affect?

Chrysler Pacifica 2017 Hybrid

Provide a route where the issue occurs

918f274474111392|2023-03-06--19-29-07--11

openpilot version

0.9.1

Additional info

I installed my new comma three a few days ago.
Everything went right during installation, apart from the comma showing "no panda connected" during installation; I unplugged the panda, re-connected it, and it was fine after that.
I drove for a few days, some highway, some city driving. Everything was fine.

[gboudreau]

This happened again today.
I was near the end of a 2h45m trip (260 km). Chill mode was engaged, and I think it disengaged when I pressed a pedal (not sure which one). I added a bookmark to the trip a few seconds later.
The route : 918f274474111392|2023-03-18--11-10-32
The problem occurred around 13:47:03

[sshane]

Interesting, the panda went into a bus off state when it faulted. Does this still happen? Has this happened when the comma three wasn't plugged in, or in dashcam mode?

[gboudreau]

It only happened those two times, while I was driving and using the comma for assisted driving.

Could this somehow be caused by the panda cable not being properly plugged in? I remember during installation, after I plugged the cable the first time, the comma was complaining about not being connected to the car, even though the cables were all connected. I had to unplug the panda, and replug it (the same way) and then the comma said all was ok. But maybe somehow the panda cable is not completely connected or something, and when the car is moving, the cable could disconnect for a fraction of a second..?

[sshane]

The panda is built into the comma three. Do you mean the relay box (what the three's USB C plugs into)? Yeah, it wouldn't hurt to try another USB C cable for an extended period time to see if that fixes the problem. Make sure to re-seat all connections.

[gboudreau]

Yes, I was talking about the relay box, and the cables it uses to connect to the car (not the three). That's the cables I had to disconnected and re-connect, during initial installation, for the three to "see" the car.
But if you think the USB-C cable is the most-likely culprit, I can try another.

[sshane]

It could be either, we can start with checking if the USB C is the culprit though. Does this happen often?

[gboudreau]

Does this happen often?

Sadly (or happily!) no. It occurred only two times since I installed 4 weeks ago.
Still, I enable chill mode as often as I can on my morning and evening commute, even if I'm only traveling small roads, to try to reproduce the issue...

[familycio]

Hello there,

I had this "ACC/FCW Unavailable Service Required" issue with my 2020 Pacifica Hybrid, running new Comma 3 and standard Openpilot code. On a April 28 morning drive (20 min, around 8:20am), my Pacifica showed only one lane detected in ACC, but Comma 3 screen has both lane (and red curb) detected. On the same day return trip (around 1pm), my Pacifica showed the "ACC/FCW Unavailable Service Required" and OP was completely dead.

My Pacifica has been in "ACC/FCW Unavailable Service Required" state ever since - I disconnect my Pacifica car battery over night trying to reset ACC/FCW, but still persist. I use the Comma 3 with the same OP version on my Nissan cars (Rogue and Leaf) with Nissan harness, and OP works fine. Can anyone help me to understand what's the problem in Comma3 with Pacifica hybrid 2020 before my visit to the dealership - It costs about $500 to visit the Chrysler dealership and diagnose the ACC/FCW error. I don't want to repeatedly visit dealer if the issue is not fixable from their side. Could it be the issue of failure Chrysler harness?

More background, my Comma 2 stopped working on April 20, 2023 after running for like 3 years. I then purchase Comma 3 to replace it.

Strangely I didn't see my April 28 video in Comma connect yet. I will connect my Comma 3 overnight and see if it upload, The last successful trip video on Nissan Rogue video is here: f421e8c2744fed7f|2023-05-06--18-14-01--1

Thanks!

[sshane]

@familycio were you able to find a route where this happens?

@gboudreau has this ever happened since?

[familycio]

Sorry, I left both Comma 2 and Comma 3 overnight, but my Comma connect didn't show any driving history of the date when only one lane was shown on the Pacifica 2020 hybrid. I will bring my Pacifica for service tomorrow and will try Comma 3 again after the service. I will update this thread. It seems I missed the window of uploading the drive video?

[sshane]

Has this happened since?