8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHPCM and ABS Dash Lights
Reported repair
Replace brake switch and it
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
Replaced the brake switch and it solved the problem.
Leading evidence: 'Replace brake switch and it' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Replace brake switch and it' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Replace brake switch and it', 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.
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.
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.
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
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: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
2000 996 103k miles. PCM and dash lights off in morning after sitting all nught. Lights stay off until I restart and they cone back on. Car runs fiine. What should I do about the lights?
For starters, remove the MAF sensor (on the engine air filter box) and get some MAF sensor cleaner at the auto parts store. Clean the sensor and re-install. See if that makes the problem go away. You might need a new Bosch MAF sensor. Make sure you pay attention to how the sensor is installed. It goes in one way only.
You will need a torx security bit to remove the screws that hold in the sensor.
Happened to me when the alternator failed and started charging at a too high voltage, but that would trigger an alternator warning as well. But do check your voltage meter just in case.
I know this sounds crazy, but after removing the MAF, plenum ,etc. in order to change the oil filler tube, I too had a single occurence of a wild PCM+ ABS light.
So, maybe not no crazy...
Any intimate encounters with a pothole recently ? ....Driving from Ohio headed for NC hit a doozy in WV. Next am.fired up my '04 C4S leaving the hotel the PCM and ABS immediatly lit up and for the next 265 miles,I enjoyed a pucker factor + 12 spirited drive to Charlotte where a frontend allignment was needed..
This is a source reference. Confirm exact model applicability in the original material.
