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mObridge and CDC-4 Wiring harness

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHmObridge and CDC-4 Wiring harness

Leading reported evidence

Replace white/red

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 · Original poster
Fuse E6 was blown (no doubt by my clumsy attempts to remove the Porsche connector so as to fit the mObridge one using a circular saw and some swarfega) - swapped the white/red for the red/green and reinstalled and then powered car up.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Frequently discussed work

Check fuse e6

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
Maybe check fuse E6.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Read full discussion summary

Leading evidence: 'Replace white/red' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fuse e6' (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.

Read captured replies

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

Compare 3 other evidence results

Use 2 of the 3 pre-existing wires

Performed · outcome unconfirmed

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
I've used 2 of the 3 pre-existing wires from the CDC harness - the brown one for ground and the white/red one for constant 12V.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Check fuse e6

Suggestion or failed attempt

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
Maybe check fuse E6.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Use circular saw and some swarfega) - swapped the white/red

Suggestion or failed attempt

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 · Original poster
Fuse E6 was blown (no doubt by my clumsy attempts to remove the Porsche connector so as to fit the mObridge one using a circular saw and some swarfega) - swapped the white/red for the red/green and reinstalled and then powered car up.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Frequently discussed actions (4)

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

Check fuse e6

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
Maybe check fuse E6.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Replace white/red

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
Fuse E6 was blown (no doubt by my clumsy attempts to remove the Porsche connector so as to fit the mObridge one using a circular saw and some swarfega) - swapped the white/red for the red/green and reinstalled and then powered car up.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Use 2 of the 3 pre-existing wires

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
I've used 2 of the 3 pre-existing wires from the CDC harness - the brown one for ground and the white/red one for constant 12V.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

Use circular saw and some swarfega) - swapped the white/red

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 · Original poster
Fuse E6 was blown (no doubt by my clumsy attempts to remove the Porsche connector so as to fit the mObridge one using a circular saw and some swarfega) - swapped the white/red for the red/green and reinstalled and then powered car up.
Original post Read captured discussion
mObridge and CDC-4 Wiring harness

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.

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

911uk: 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

POST 1 / ORIGINAL POSTEROriginal post

Hello All, I'm trying to install a mObridge unit in place of the CDC-4 on my PCM2 equipped 996 C4S. All wires/optics connected up as per instructions but no joy (MOST will not wake up properly and is not recognising the component parts). On the assumption that it is the mObridge that is causing the issue (it was all working before I started....), I am trying to make sure that the unit is getting constant power. The unit has no power tell-tale and the only way you can tell if it has power is if it is working, which it isn't. I've used 2 of the 3 pre-existing wires from the CDC harness - the brown one for ground and the white/red one for constant 12V. There is also a green/red wire which I have no idea about, although worringly on other forums I've seen this referred to as the constant 12V wire. But that is not what my multi-meter is telling me. Before I go and swear at it some more, does anyone know what the green/red wire is for, as at least that way I can eliminate one possible mistake I may have made. Any other suggestions from people with a mObridge also gratefully received. Many thanks, David

POST 2Original post

On the wiring diagram it shows: Red/Green - supply from fuse E6 Brown - Earth White/Red - "Wake Up/Diagnosis" (from PCM unit) I think you have the supply to the wrong wire. Maybe check fuse E6.

POST 3 / ORIGINAL POSTEROriginal post

Richard, Thank you very much indeed, that was exactly the information I was after. Fuse E6 was blown (no doubt by my clumsy attempts to remove the Porsche connector so as to fit the mObridge one using a circular saw and some swarfega) - swapped the white/red for the red/green and reinstalled and then powered car up. All works perfectly! Turns out the white/red is a data wire which sends bursts of signal to the CDC, but which on a simple multimeter looks like a constant 12V... I really can't thank you enough for the accurate information and speedy response. I was cross enough with being stumped, but Friday night's drive from Liverpool Street to Snowdon was going to be a drag with no music or SatNav. Now I'm very much looking forward to it. Thanks again, David

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