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911uk

Reverse Lights Not Working

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

Discussion summary

YOUR RESEARCHReverse Lights Not Working

Leading reported evidence

Replace bulbs

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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 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 popped the clusters out and changed the bulbs, but they still don;t work.

Original post Read captured discussion
Reverse Lights Not Working
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Leading evidence: 'Replace bulbs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'reverse switch' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace bulbs' (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.

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1 matching discussions · 7 captured posts examined · 0 partial discussions

Compare 1 other evidence results

reverse switch

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

Probably the reverse switch on top of the gearbox.

Original post Read captured discussion
Reverse Lights Not Working
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.

Replace bulbs

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 popped the clusters out and changed the bulbs, but they still don;t work.

Original post Read captured discussion
Reverse Lights Not Working
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.

reverse switch

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

Probably the reverse switch on top of the gearbox.

Original post Read captured discussion
Reverse Lights Not Working
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.

7 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: 20261027T165639Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I recently brought a 996 3.4 C2 and noticed that my reverse lights weren't working. I've popped the clusters out and changed the bulbs, but they still don;t work. All other lights in the clusters work, wiring looks ok, makes me think its a sender somewhere that's not sending a signal when I engage reverse. Any ideas as to where to start looking? Thanks in advance

POST 2Original post

Probably the reverse switch on top of the gearbox. Cheap part but fiddly to undo if it has corroded in. Mine crumbled during removal years ago leaving a hole that that spewed oil on the move! Plugged with metal putty and now have a manual override switch for the lights which I’ll sort next time the gearbox needs to be removed. Luckily that hasn’t been required for the past 5 years. interestingly reverse lights aren’t required for an MOT on my MY2000 car.

POST 3Original post

If its a manual, as above. If you have reversing sensors, they wont work either.

POST 4Original post

Quotes source post: 2683114

[Image-only or quote-only post; no author-written text.] https://911uk.com/data/attachments/96/96530-6c011cf8e0d6b923463f6a21045d3119.jpg?hash=bAEc-ODWuS

POST 5Original post

Also worthy of note is that when you search for the switch with the part number 99660610301, you can see the same Hella switch is used in Opels / Vauxhalls as well. I think I paid maybe 20€ for mine some years ago, where as the Porsche price would have been 60-80€.

POST 6Original post

Always good to know what common parts can be found at a discount. My switch went 3 years ago. It was £27 from Porsche.

POST 7Original post

£35 now from Porsche, German OEM versions about £15

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