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Dead PCM

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Old Mar 20, 2023 | 01:49 PM
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Default Dead PCM

Probably a coincidence, but my car was in for it's 1 year service, and later in the afternoon when I got it home, the PCM failed. It started out with loss of the park assist cameras, and then it completely went dead. Did a search and don't see that this is a common problem. Curious if anyone else had this happen. It's back at the dealer, I'll report back what the fix is.
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Old Mar 20, 2023 | 03:45 PM
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I'm having a similar issue with my brand new M3. 1500 miles on it and it's got no A/C, no music, no cameras, etc. It's been in the shop for a week and they're expecting at least 2-3 more while they wait for parts and try to diagnose the issue.
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Old Mar 21, 2023 | 04:28 PM
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Got the car back. There was a fault code for central computer control unit no communication. They reprogrammed it following IT (9125 149/19), and it's back working fine.
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Old Nov 30, 2023 | 04:21 PM
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This morning, as I started my 992 like every morning

, the PCM went blank. I restarted her back a few times, still dead. Has this happened to anyone else? What should I do?
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Old Nov 30, 2023 | 04:33 PM
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I had this happen to me a couple of weeks ago, got a ring of death. Oddly enough audio was still working. I quickly power cycled the car and it didn't fix the issue.
When I let my car sit for a couple of hours it came right back. I'm guessing this might be cause due an in-progress OTA update.
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Old Nov 30, 2023 | 04:44 PM
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Originally Posted by laurenxesq
This morning, as I started my 992 like every morning

, the PCM went blank. I restarted her back a few times, still dead. Has this happened to anyone else? What should I do?
I had that a few weeks ago after it updated 2-3 items. if you turn off, open the door, and wait the screen should come back up. turn off your phone so it doesn't connect Then get it to a home screen. that appeared to have gotten mine sorted out.
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Old Nov 30, 2023 | 05:08 PM
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Originally Posted by silencei2
I had this happen to me a couple of weeks ago, got a ring of death. Oddly enough audio was still working. I quickly power cycled the car and it didn't fix the issue.
When I let my car sit for a couple of hours it came right back. I'm guessing this might be cause due an in-progress OTA update.
@silencei2 Thanks. I'll let her sit for a few hours and re-start her again.
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Old Nov 30, 2023 | 05:08 PM
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Originally Posted by dudeoverthere
I had that a few weeks ago after it updated 2-3 items. if you turn off, open the door, and wait the screen should come back up. turn off your phone so it doesn't connect Then get it to a home screen. that appeared to have gotten mine sorted out.
I'll give that a try too, @dudeoverthere . Thank you.
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Old Nov 30, 2023 | 06:11 PM
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PCM came back to life. Thanks @dudeoverthere and @silencei2
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