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ABS/PSM lights with brake lock??

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHABS/PSM lights with brake lock??

Leading reported evidence

Clean ws sensors (bad in 45,000?), looking

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
My OBD reader apparently doesn't read Porsche, am preparing to clean ws sensors (bad in 45,000?), looking for ideas.
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ABS/PSM lights with brake lock??

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Leading evidence: 'Clean ws sensors (bad in 45,000?), looking' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean ws sensors (bad in 45,000?), looking' (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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Test drove, no difference

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Also, I pulled the fuses (ABS,PSM) and test drove, no difference.
Original post Read captured discussion
ABS/PSM lights with brake lock??

Frequently discussed actions (2)

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

Clean ws sensors (bad in 45,000?), looking

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
My OBD reader apparently doesn't read Porsche, am preparing to clean ws sensors (bad in 45,000?), looking for ideas.
Original post Read captured discussion
ABS/PSM lights with brake lock??

Test drove, no difference

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
Also, I pulled the fuses (ABS,PSM) and test drove, no difference.
Original post Read captured discussion
ABS/PSM lights with brake lock??

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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.

8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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

Outcome without a verified action link
Also, I pulled the fuses (ABS,PSM) and test drove, no difference.
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Generation: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

'02 996 2wd, 45,000 miles. 3-4 miles from the house the car started bogging, thought it was a flat, in 20-30-yards looking for a drive way to turn into the brakes came on more and more. By the time I stopped the ABS lite and PSM lite came on, with "drive to garage". I have searched and found plenty, but no one has the brakes engaging. After sitting a couple hours the brakes ease off, but not completely, and clamp down in a matter of yards. My OBD reader apparently doesn't read Porsche, am preparing to clean ws sensors (bad in 45,000?), looking for ideas. Also, I pulled the fuses (ABS,PSM) and test drove, no difference. Fluid is full, brake pedal feels taught, less free play at the top than normal. Any thoughts apprciated.

POST 2Original post

Is it all 4 corners or just one wheel? Maybe u just have a locked up caliper or a colapsed soft line and its tripping the psm.

POST 3 / ORIGINAL POSTEROriginal post

It appears to be both front that engage, the rears may be but not as severe.

POST 4Original post

If u turn off the psm does it release? I would guess a bad wheel sensor trigering the psm. I think a durametric or good shop scanner can read the individual wheel sensors.

POST 5Original post

Same thing happened to me. Probably brake booster and/or master cylinder. Here's my thread: Brakes locked

POST 6Original post

Have you removed the air box recently? If you forgot to plug in the MAF both of those lights will come on.

POST 7 / ORIGINAL POSTEROriginal post

Many thanks, this will get me started.

POST 8 / ORIGINAL POSTEROriginal post

Have not removed airbox recently.

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