fullymatted.
Back to search
Rennlist

Dreaded PSM / ABS

Add to repair workspace
Open repair workspace
Original source
9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHDreaded PSM / ABS

Reported repair

Replace brake pedal switch

Reported resolution
1
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 report a fix
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.

Reported fix

I was having this issue a few weeks ago, I replaced the brake pedal switch and that fixed it

Dreaded PSM / ABS
Read full discussion summary

Leading evidence: 'Replace brake pedal switch' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Replace brake pedal switch' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Replace brake pedal switch', supported by resolution reports in 1 discussions. 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.

Read captured replies

1 matching discussions · 9 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Clean mass air flow 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

Cleaned the MAF.

Dreaded PSM / ABS

Replace 4 speed sensors (what a job

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

Changed all 4 speed sensors (what a job.

Dreaded PSM / ABS

Replace air filter

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

Changed air filter.

Dreaded PSM / ABS

Replace front and rear pads rotors and new brake sensors

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

Changed front and rear pads rotors and new brake sensors.

Dreaded PSM / ABS
Frequently discussed actions (8)

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

Replace brake pedal switch

1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report a fix
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.

Reported fix

I was having this issue a few weeks ago, I replaced the brake pedal switch and that fixed it

Dreaded PSM / ABS

Check brake switch

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

^^^ +1 on checking the brake switch.

Dreaded PSM / ABS

Check lights and bulbs

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 · Original poster

Time to check all lights and bulbs.

Dreaded PSM / ABS

Clean mass air flow 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

Cleaned the MAF.

Dreaded PSM / ABS

Replace 4 speed sensors (what a job

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

Changed all 4 speed sensors (what a job.

Dreaded PSM / ABS

Replace air filter

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

Changed air filter.

Dreaded PSM / ABS

Replace front and rear pads rotors and new brake sensors

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

Changed front and rear pads rotors and new brake sensors.

Dreaded PSM / ABS

Use torch and rip these things out

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 · Original poster

Had to use a torch and rip these things out.

Dreaded PSM / ABS
Actions with reported resolution accounts (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 brake pedal switch

1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report a fix
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.

Reported fix

I was having this issue a few weeks ago, I replaced the brake pedal switch and that fixed it

Dreaded PSM / 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.

9 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: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Mine comes on randomly. Never at start up. Only when moving. I don't have the luxury of a porsche reader so here's what I've done already. 1. Cleaned the MAF. 2. Changed air filter. ... still comes on 3. Changed front and rear pads rotors and new brake sensors. 4. Changed all 4 speed sensors (what a job. Over 2 hours of frozen stuck sensors!!!! Had to use a torch and rip these things out. They were really frozen on. Yards of brass pulling out and prying on the little buggers to get them off. ....drove a.little and it didnt come on yet. Cross fingers! If not im.gonna try: brake sensor

POST 2Original post

Quotes source post: 19314702

If you are talking about the brake wear sensors they have nothing to do with those lights. Brake lights work? Need access to a decent code reader.

POST 3Original post

If it only comes on above 78 mph your spoiler brake light is out. Mine had this issue...turns out it had flown out entirely.

POST 4 / ORIGINAL POSTEROriginal post

Shoot. It came on again and the reader I got doesn't say anything with car on. If I shut her down and restart the lights come off. I was doing about 67 to 70 and it came on. Ok. Time to check all lights and bulbs.

POST 5Original post

I was having this issue a few weeks ago, I replaced the brake pedal switch and that fixed it https://www.pelicanparts.com/cgi-bin...og_description

POST 6Original post

Quotes source post: 19315991

^^^ +1 on checking the brake switch.

POST 7 / ORIGINAL POSTEROriginal post

Yep! Got a hold of a reader at a local garage... Error 4340! Brake switch. Damn bugger. Ordered!

POST 8Original post

Paraphrasing from Page 209 of the essential companion with regards to MAF sensor: IF the MAF sensor warning is triggered, that has a downstream effect, specifically psm and abs will fail . I have both psm and abs lights and a new MAF but I haven't tested it yet. It's on my list...

POST 9 / ORIGINAL POSTEROriginal post

Woo hoo! Fixed! I drove about 200 miles today. Got a new brake sensor. That little bugger was hard to put in!! No ABS/PSM errors!! 986 While playing with it I swapped out 6428 license bulbs with LED. haha!

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