fullymatted.
Back to search
Rennlist

ABS/PSM Failure

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

Discussion summary

YOUR RESEARCHABS/PSM Failure

Leading reported evidence

Check fault codes

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

Check the fault codes with a code reader or go to an auto parts store like Pep Boys or Advance Auto and ask them to read the codes for you.

Original post Read captured discussion
ABS/PSM Failure
Read full discussion summary

Leading evidence: 'Check fault codes' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fault codes' (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.

Read captured replies

1 matching discussions · 5 captured posts examined · 0 partial discussions

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.

Check fault codes

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

Check the fault codes with a code reader or go to an auto parts store like Pep Boys or Advance Auto and ask them to read the codes for you.

Original post Read captured discussion
ABS/PSM Failure
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.

5 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.

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

Have turned the car on and off about 7 times with no change in ABS/PSM fault.

Original post Read captured discussion

No unique explicit quoted action; no causal link assigned

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

POST 1 / ORIGINAL POSTEROriginal post

Have an 05' C4S - been great for the last year of ownership - no problems. - 35k miles. It was a crazy rainy day in LA today and I drove through a huge puddle - enough to submerge about half of the wheels. Had no issue right after that, but parked the car about 20 minutes later. Kept off for about an hour. Came back to the car and immediately when I turned the ignition I got an ABS failure and PSM failure - see workshop. Tested the ABS while driving and it was not engaging at all. Have turned the car on and off about 7 times with no change in ABS/PSM fault. The car is sitting in my garage drying off at the moment - but I was worried and bought a replacement brake light sensor from Porsche Beverly Hills (Read that, that is a common replacement fix) - i have not installed this yet. Waiting till the morning when everything is dry. Anyone have any insight in to what might be the issue / solution?

POST 2Original post

Check the fault codes with a code reader or go to an auto parts store like Pep Boys or Advance Auto and ask them to read the codes for you. Post the results here.

POST 3Original post

Yeah, read the codes. My guess is that the MAF got wet, a fault there triggers ABS (and in my case traction control) issues. Curious to see if it�ll solve itself overnight by drying out.

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 15612043

i let let it dry out over night. Just turned the ignition and no fault. Drove for a second. No fault. Thanks all. Will report back if it comes back.

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