7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBrake Lights and Spoiler
Leading reported evidence
Check relays, microswitch and motor connections
Suggestion or failed attempt
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 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
I would start by checking the relays, microswitch and motor connections.
Leading evidence: 'Check relays, microswitch and motor connections' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check relays, microswitch and motor connections' (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.
Replace brake light switch has rectified the spoiler issue too
Suggestion or failed attempt
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 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
Against the odds replacing the brake light switch has rectified the spoiler issue too, which is a surprise.
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.
Porsche Club GB: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
] Yes I fixed it thanks to the fantastic advice on this forum.
Hello forum-ites,
It's a request for help. I have a 1999 911 C2 and the brake lights have stopped working. They flicker now and again, but nothing more than that. In addition to this the spoiler seems to have stopped auto deploying at the same time. The only event I can tie this back to is having the car washed by the local hand washers who love their pressure washers.
Does anyone know what this could be related to and the fix please? Happy to cross the palm of my local garage but if I can solve it I'd rather have that satisfaction.
Please help;
Thanks for the info Andy - switch ordered.
The spoiler does go up and down on the switch in the footwell, just not automatically. Any clues on that?
Cheers
Dan
All I know is the operation is controlled by a speed signal given to the instrument cluster circuitry and the ABS control module, which in turn controls the relays to open/close.
The cluster circuitry monitors operating time of the spoiler and cuts power from the drive motor to prevent damage if not deployed within time frame.
Could be damage to one of the speed / abs sensors or excessive water ingress.
If Richard sees this he may have better info for you.
Best of luck
I think you covered it pretty well Andy. The spolier relays are switched by the instrument cluster, which gets its speed signal from the ABS. However, I would have thought you would get an ABS/PSM warning if an ABS sensor was the problem.
I would start by checking the relays, microswitch and motor connections.
Hi Richard,
Thanks for your advice. The brake pedal switch has arrived so I'll fit that this weekend and see what happens thereafter. Currently lack of brake lights is the big issue and the spoiler can be fixed at my leisure.
Thanks,
Dan
So, I have added Porsche technician to my CV [
] Yes I fixed it thanks to the fantastic advice on this forum. Thank you all.
Against the odds replacing the brake light switch has rectified the spoiler issue too, which is a surprise.
Well, happy days, and thanks again to Andy, Richard and last but absolutely not least... Min Chew who created the .pdf.
Hi Dan.
Glad its all now sorted and a simple repair.
That's modern electronics for you as the brake light switch not only sends power to the brake light like in the 1960s but it also send signals to ABS,PSM.& more.
Thanks for your feedback as I'm sure it will be useful for others.
Regards
Andy
This is a source reference. Confirm exact model applicability in the original material.
