PM_a041_dasMIA, DI_a141_dasMIA, ECU fault and no cameras working

[bemis]

Fun morning - Started pulling out of my garage and noticed my rearview camera wasn't working. Checked and all cameras stopped working. I've driven it a few times since 2026.2.9.1 without issues

Errors:
PM_a041_dasMIA (Pedal Monitor DAS CAN node missing)
DI_a141_dasMIA

In service mode, the Primary ECU is in a fault state, all cameras say 'Frames Dropped'

Tried:
1. Rebooting
2. Full power off for ~5min
3. Exiting the truck and walking away for 10min or so
4. Pinging DAS (CAN and ETH - both successful)
5. Reset DAS

Anything else I could try in the mean time?

Checking if Roadside Service has any ideas, or if it will need to be taken in. I might drive it in - just would be a pain with zero cameras helping with visibility (and I assume all driver safety features wouldn't work)

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[misdemeanor]

I'd suggest trying the "Clear Camera Calibration" in service mode. You can also do it outside of service mode: Controls > Service > Camera Calibration > Clear Calibration

Another thing you could try is to let the truck to go to sleep by leaving it unplugged from the charger and undisturbed for at least an hour (or overnight if possible). This deep sleep can clear hiccups like this.

If those options fail, then you'll probably need to open a service request.

 

[bemis]

Clear calibration fails, unfortunately. Service center said since it can drive, not having AEB and similar safety features isn't enough to bump it in priority, so I'll need to wait the 3.5 weeks until they can get to it. But I am on a waitlist in case someone cancels.

Also - I thought the GPS signal showing no satellites in use was maybe just because it was in my garage, but nope - GPS is also currently dead on the truck (so no nav, which is terrible for someone like me with no sense of direction )

Driving forward is fine - but it is very rough backing into places without the rear cam. Going to look at getting an external backup camera for the mean time

 

[JCERRN]

Did you recently update software?

 

[misdemeanor]

Did you recently update software?

Could also try a software reinstall in service mode.

 

[bemis]

Did you recently update software?

Last week - but I've driven many times before this happened

Could also try a software reinstall in service mode.

Tried both options - the ECU related one said it ran successfully, but didn't fix anything. The other one (TCU I think it was?) said it had nothing to update

Also, I noticed the truck no longer sleeps - it is online 100% of the time since the issue started. I assume that's due to the ECU being in a boot loop cycle

 

[MCraft99]

You could try unplugging the 48V battery and letting it sit for a couple minutes then reconnect. But if one of the ECUs is defective, there's not much you can do other than driving it into a service center and telling them it shuts off on you while driving or similar. They will take it in right away and hopefully get you a loaner. Scheduling via the app or phone can treat your request like a normal low priority service request.

 

[bemis]

They were able to get me in a week early - they replaced the ECU (1780685-S0-J), and everything is back to normal now!

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