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911uk

ABS

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

Discussion summary

YOUR RESEARCHABS

Leading reported evidence

Check by the system

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
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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

There are x4 abs sensors which from memory are checked by the system with ignition on therefore a brake pedal switch is an obvious possibility ..

ABS
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Leading evidence: 'Check by the system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check by the system' (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 · 6 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace abs sensor

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

Till now I changed the ABS sensor from the ABS module and restarted the ecu.

ABS

Use but no signal

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

If it see the brake system being used but no signal from pedal, this'll chuck up a fault and trip the system........that's my understanding and previous experience with ABS systems.

ABS
Frequently discussed actions (3)

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

Check by the system

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

There are x4 abs sensors which from memory are checked by the system with ignition on therefore a brake pedal switch is an obvious possibility ..

ABS

Replace abs sensor

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

Till now I changed the ABS sensor from the ABS module and restarted the ecu.

ABS

Use but no signal

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

If it see the brake system being used but no signal from pedal, this'll chuck up a fault and trip the system........that's my understanding and previous experience with ABS systems.

ABS
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.

6 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi All, Hope everyone is well. I have a 2001 - 996 C2 Manual, all works fine until i press the break button. As soon as i do so, the ABS & Traction control bulbs lights up on the dashboard. When i switch off the engine, the lights are turned off and back on as soon as i press the break paddel again. Till now I changed the ABS sensor from the ABS module and restarted the ecu. I also unpluged the battrey for 2 whole days but still same. When checed again with the programm it is still pointing out that the ABS sensor is not working properly. What do you think this could be ? :?:

POST 2Original post

Faulty brake light switch on your pedal. Very common fault.

POST 3Original post

If you have a code reader then use that and you should have a fault code which will say what the problem is .. If not then a quick fault code read out at a garage is in order .. either way you will get a fault code which will tell you the problem . There are x4 abs sensors which from memory are checked by the system with ignition on therefore a brake pedal switch is an obvious possibility .. But im still back to getting a fault code check .. i hate throwing parts at something when there is an obvious check to prove it first . Disconnecting a battery cures pretty much nothing im afraid , most fault codes are stored in a semi permanent memory and several systems will shut down until that code is erased with a tester .... airbags being a common one .

POST 4Original post

Generic fault code readers won't read Porsche ABS issues. They'll only do engine codes. You need to read it with a durametric or PIWIS or the likes. Touching the brake pedal and triggering the psm/abs lights sounds 99% brake switch issue to me :dont know:

POST 5Original post

Good luck with fixing this, have the same problem with my daily Audi TT and it is proving a nightmare to fix. Sorry no hope OP but have also told it is often the brake switch.

POST 6Original post

If it doesn't come on when the wheels are in motion then the monitoring system and the sensors are all fine. If it comes on as soon as the pedal is pressed then the brake system has to get a signal the pedal has been pressed from the pedal switch. If it see the brake system being used but no signal from pedal, this'll chuck up a fault and trip the system........that's my understanding and previous experience with ABS systems. Does the pedal trip the system if you press it without even moving, once you start the car? :?:

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