fullymatted.
Back to search
Porsche Club GB

PCM Help Please

Add to repair workspace
Open repair workspace
Original source
2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHPCM Help Please

Reported or suspected cause

pcm software, try pulling the fuse

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context

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 suspect a cause
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.

Suspected cause

If the issue is with the PCM software, try pulling the fuse to the thing and rest it.

PCM Help Please
Read full discussion summary

Leading evidence: 'pcm software, try pulling the fuse' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'pcm software, try pulling the fuse' (1 discussions; 0 report identifying it and 1 suggest it). 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.

Read captured replies

1 matching discussions · 2 captured posts examined · 0 partial discussions

Reported and suspected causes (1)

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

pcm software, try pulling the fuse

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

If the issue is with the PCM software, try pulling the fuse to the thing and rest it.

PCM Help Please
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.

2 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: 20261026T052503Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

HI Chaps I have a PCM that is playing up. The right hand knob only toggles between two digits. It means the sat nav can only take me to towns that only have a and b in their name. I wonder if anyone out there has any ideas. Becker have told me that they can't look at it as Porsche will not allow them to. The only option is a £1000 exchange at a OPC. Many thanks Graham

POST 2Original post

Two things i'd suggest: - 1. If its a mechanical issue with the knob, IIRC, they are removable by pulling it out. I could be wrong but thats how the PCM2.1 works. Then try blowing a can of compressed air into the (variable resistor) component to clean it up. 2. If the issue is with the PCM software, try pulling the fuse to the thing and rest it. Hope that helps to get you started. Popolou

This is a source reference. Confirm exact model applicability in the original material.