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Porsche Club GB

PCM SAT NAV

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHPCM SAT NAV

Leading reported evidence

Use vauxhall cd's

Suggestion or failed attempt

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 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.

Suggestion

You could upgrade the CD reader to a 16 bit version which would allow the software upgrade and hence using the Vauxhall CD's but that comes at a price - OPC price - around a grand!!!!!

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PCM SAT NAV
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Leading evidence: 'Use vauxhall cd's' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use vauxhall cd's' (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.

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1 matching discussions · 3 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Use vauxhall cd's

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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.

Suggestion

You could upgrade the CD reader to a 16 bit version which would allow the software upgrade and hence using the Vauxhall CD's but that comes at a price - OPC price - around a grand!!!!!

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PCM SAT NAV
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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.

3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Porsche Club GB: 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: 20261027T020439Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi, I have a 98R with a factory PCM1 Sat Nav. Occasionally, it gets confused and thinks I am in a different position, usually still quite local and just a few roads out. A few, maybe 5-10 minutes later, we are back on track! Any ideas? Also, it crashes at random moments, alot of yellow writing sith an overlapping error message which is difficult to read, even when not driving. The Sat Nav reboots after a while and is then OK. More ideas? Can anyone tell me where the Sat Nav Antenna is located? Also, i know there have been plenty of posts re replacement disks, newer and cheaper than OE Porche inc. Vauxhall - has anyone successfully located these and got them up and running? Cheers, Rob

POST 2Original post

Sat nav reciever is under the panel at the base of the windscreen - where the red alarm active light is. Wish I could help with the other questions - but I'm afraid I've no idea.

POST 3Original post

I too have a PCM 1 which from time to time gives my position incorrectly but I haven't suffered the error messages. As to trying other CD's (i.e. Vauxhall) forget it. Your PCM has an 8 bit memory on a car that age and as such you can't upgrade it's software so as to read the later version CD's as they need 16 bit memory. You could upgrade the CD reader to a 16 bit version which would allow the software upgrade and hence using the Vauxhall CD's but that comes at a price - OPC price - around a grand!!!!! RB

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