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Porsche Club GB

Unidentified wire - NOT bonnet release cable

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6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHUnidentified wire - NOT bonnet release cable

Leading reported evidence

Check rust

Suggestion or failed attempt

No successful repair reported for this finding.

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Suggestion · Original poster

Took out the headlamp units on my 2003 996 C4, to clean and check for rust under the wings.

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Unidentified wire - NOT bonnet release cable
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Leading evidence: 'Check rust' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check rust' (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 · 6 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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Check rust

No successful repair reported for this finding.

0
Reported fixes
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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

Took out the headlamp units on my 2003 996 C4, to clean and check for rust under the wings.

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Unidentified wire - NOT bonnet release cable
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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.

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

  • Porsche Club GB: 1 discussions

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Generation: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Made the mistake of doing a bit of exploring today!?! Took out the headlamp units on my 2003 996 C4, to clean and check for rust under the wings. On the passenger side I found an odd thin wire which runs underneath the headlamp unit and then tracks forwards and down to somewhere behind the bumper. It is connected to some sort of unit which is covered in insulation tape and mounted on the underside of the wing above and behind the headlamp unit. This unit looks like some sort of after-market device, given the way it is "mounted". The wire is no longer attached to anywhere behind the bumper because I pulled on it......oops. The end of this thin black wire is terminated with a plastic end cap and does not appear to have been an electrical connector, more like a sensor (looks to small for that) or an antenna wire. Anybody have any ideas what this is? I wondered if it might be a tracker device.

POST 2Original post

It is or was the emergency boot release. The bumper end should be connected to the boot lock.

POST 3 / ORIGINAL POSTEROriginal post

Thanks for the suggestion, but it wasn't the emergency bonnet release, which I identified on the driver's side. This wire is black insulated electrical wire, rather than the bare metallic twisted wire of the emergency bonnet release. Thanks anyway.

POST 5Original post

The other guys that replied may have already discounted this, but it's not the outside air temperature gauge is it? Not sure where the wire leads to under the bonnet, but the sensor itself just sticks through the front bumber in one of the air intake holes.

POST 6 / ORIGINAL POSTEROriginal post

Temperature sensor was my first thought. But....sensor is on the other side and has two wires coming from it, both of which still intact. So I don't think it's that. Thanks for the suggestion though.

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