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2002 C4 PSM Problem

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

Discussion summary

YOUR RESEARCH2002 C4 PSM Problem

Reported repair

Check diagnostics and not sensors

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

Checked diagnostics and not sensors but brake pedal switch...low cost and quick job to sort out. Problem solved

Original post Read captured discussion
2002 C4 PSM Problem
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Leading evidence: 'Check diagnostics and not sensors' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Check diagnostics and not sensors' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Check diagnostics and not sensors', 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.

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1 matching discussions · 6 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 diagnostics and not sensors

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

Checked diagnostics and not sensors but brake pedal switch...low cost and quick job to sort out. Problem solved

Original post Read captured discussion
2002 C4 PSM Problem
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.

Check diagnostics and not sensors

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

Checked diagnostics and not sensors but brake pedal switch...low cost and quick job to sort out. Problem solved

Original post Read captured discussion
2002 C4 PSM Problem
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.

  • 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Was driving over the weekend with the kids. Was going fine when the PSM failure light came on, and then the ABS failure light came on. Car ran great. Got home, shut her down and took her out again later. After about 30 min, the warning lights came on again. Since then, I just turn off the PSM when I start the car up. Any advice as to what the problem could be? I've heard that the MAF sensor may be the culprit. Am I doing any damage by driving with the PSM off? Thanks in advance! Car has 69K miles on it.

POST 2Original post

I had a similar issue - it was a $10 switch causing a rear brake light failure when I applied the brakes, which caused an ABS failure light => which caused the PSM failure.

POST 3Original post

Agree with the above. Checked diagnostics and not sensors but brake pedal switch...low cost and quick job to sort out. Problem solved

POST 4 / ORIGINAL POSTEROriginal post

Thanks for the info. Where is the brake light switch located?

POST 5 / ORIGINAL POSTEROriginal post

thanks. Where is the brake light switch located?

POST 6Original post

Quotes source post: 7679975

Try this thread if you have not already. It tells you where the switch is too, among other relevant info. https://rennlist.com/forums/996-foru...ht-switch.html Good luck.

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