17 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBraking so hard the horn sounds??
Leading reported evidence
Reset sensor
Suggestion or failed attempt
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0
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1
Discussions
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Suggestion
(this is the way they do it at the factory) Sometimes the massive torque can dislodge the internal G force switch that sounds the horn in the event of a crash and this is the only way to reset the sensor.
Leading evidence: 'Reset sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Reset sensor' (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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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.
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Suggestion
Could have been the old lady that almost rear ended you because you stomped on your brakes and she was intending to run the yellow with you...
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.
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Suggestion
After having this problem and trying the DIY with using rubber grommets and then trying silicone I finally sported for the new frame and then it became perfect again.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Reset sensor
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
(this is the way they do it at the factory) Sometimes the massive torque can dislodge the internal G force switch that sounds the horn in the event of a crash and this is the only way to reset the sensor.
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
After having this problem and trying the DIY with using rubber grommets and then trying silicone I finally sported for the new frame and then it became perfect again.
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.
17 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
So I experienced something crazy the other day... I was approaching a yellow light and decided not to blow through the intersection so I stomped on my brakes fairly hard. As I began to decelerate rather quickly my horn started to sound off until I can to a stop. It scared the sh*t out of me! Anyone else have this happen? OR is my horn just super sensitive?
A guy here in a 996 has the same problem that I auto-x with. Horn relay under the airbag. It is funny during an autocross hearing him "honk" on the course and at the finish.
^^ this, don't let it go too long. I ignored mine for a while and the horn went on by itself when I was in the office and it burned out the horn and the horn relay. It's expensive to have the bumper removed... DOH!
After having this problem and trying the DIY with using rubber grommets and then trying silicone I finally sported for the new frame and then it became perfect again.
4 spoke frame with new rubber =~ $50 @
www.porscheoemparts.com
P/N 99334708801
I also drove without the horn fuse in for quite a few months.
thanks for the tip on this one. Couldn't access the renntech post, not sure what is up w/ that.
Having this problem on my '99, I took it apart last night and tried shimming the base of the bushings with some washers to get it further away from the contact buttons but the rubber is obviously deteriorated/ too weak to mend this way, so the silicone trick probably wouldn't last long. Bit the bullet and ordered a new one from Sonnen Porsche (referenced above).
I called my local dealer and they were $25 higher and wouldn't price match. The parts guy at Sonnen said that the part has been superceded and folks have complained that it puts the airbag further away from the steering wheel/ it doesn't fit flush, but that is better than the horn going off all the time, I suppose.
thanks again
It amazes me how popular this problem is and no one ever does a search. So here is your answer. The motor has to come out and put back in while the car is placed exactly on a 30 degree angle. (this is the way they do it at the factory) Sometimes the massive torque can dislodge the internal G force switch that sounds the horn in the event of a crash and this is the only way to reset the sensor.
Then for the first 150 miles after you reinstall the motor, every time you stop for any reason with the car running you have to honk the horn once with the manual button on the streering wheel. (the computer is in learning mode and this tell the computer that the g force it just felt was just a norman stop and not an accident) next when you stop and shut off the car you have to honk the horn twice. If you fail to do this AT ALL you will have to start over and pull the motor again.
Good luck.
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