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YOUR RESEARCHPCM repairs - Page 1 - Porsche General - PistonHeads UK
Leading reported evidence
Install carplay unit
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
My local Porsche specialist (Pie Performance - who fitted a Carplay unit to it), reckon the internal power unit keeps going down and causing the head unit to turn off and reboot.
PCM repairs - Page 1 - Porsche General - PistonHeads UK
Read full discussion summary
Leading evidence: 'Install carplay unit' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install carplay unit' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
repaired my PCM motherboad connector which I broke taking the radio out to find a squeek.
PCM repairs - Page 1 - Porsche General - PistonHeads UK
Replace whole thing, as they do
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
It was under extended warranty at the time so the OPC just replaced the whole thing, as they do.
PCM repairs - Page 1 - Porsche General - PistonHeads UK
Recommend highly enough
Suggestion or failed attempt
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0
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0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
PCM repairs - Page 1 - Porsche General - PistonHeads UK
Replace with solid state drive
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Discussions that contain suggestions
1
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Suggestion
Common failure prevented by cloning and replacing with solid state drive.
PCM repairs - Page 1 - Porsche General - PistonHeads UK
Frequently discussed actions (5)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Install carplay unit
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
My local Porsche specialist (Pie Performance - who fitted a Carplay unit to it), reckon the internal power unit keeps going down and causing the head unit to turn off and reboot.
PCM repairs - Page 1 - Porsche General - PistonHeads UK
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi folks,
Apologies in advance if this has been covered recently. The PCM 3 unit on my 2016 Cayman keeps turning off (every 3-4 minutes) when in use and then reboots. It also switches itself on when I switch it off. My local Porsche specialist (Pie Performance - who fitted a Carplay unit to it), reckon the internal power unit keeps going down and causing the head unit to turn off and reboot.
I'd like to get this diagnosed and fixed, any recommendations on the best place to get this done (preferably in the Cambridge area) and any idea of costs?
I also have a PCM 3.0 in my 987.2, and it's done a similar thing twice in the last week. Mine went from 'Source' (a USB stick) to radio then turned off momentarily, showing the white screen, then back to radio. Switching back to USB it started playing halfway through the previous track.
I'd be interested in any comments.
Edited by CanAm on Monday 8th December 19:06
do you have your phone paired to the PCM?
I had this in 2013 in a 981Box.
Turned out it was the phone i had at the time making the PCM throw a wobbly! (can't remember what phone it was at the time)
Just worth a thought.....?
49neil said:
do you have your phone paired to the PCM?
I had this in 2013 in a 981Box.
Turned out it was the phone i had at the time making the PCM throw a wobbly! (can't remember what phone it was at the time)
Just worth a thought.....?
I've had the phone for over a year, it's always paired, and this is the first time its happened. Worth bearing in mind though. I'll try it for a while with Bluetooth off (hands-free, of course).
Cheers
Can't recommend highly enough.
https://www.nmautomotive.co.uk/
repaired my PCM motherboad connector which I broke taking the radio out to find a squeek. Hamfisted plonker that I am.
Posted it to him, back in a couple of days, all sorted. Also bought my carplay kit from him. Great video instuctions in perfect English
I had exactly the same thing as you described in my 981. It was a corrupted hard drive. It was under extended warranty at the time so the OPC just replaced the whole thing, as they do. That said, a couple of automotive-audio guys were confident of being able to sort it, no doubt similar to those mentioned above.
This is a source reference. Confirm exact model applicability in the original material.
