4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHWindows not working after flat battery
Leading reported evidence
Install battery only a few weeks beforehand
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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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
I had installed a new battery only a few weeks beforehand.
Leading evidence: 'Install battery only a few weeks beforehand' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean connectors and reinstall, its a cheap' (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.
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
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Suggestion
Clean the connectors and reinstall, its a cheap test..
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
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Suggestion
Disconnect the battery BEFORE you disconnect the security module.
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
Disconnect the battery BEFORE you disconnect the security module.
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
Remove the alarm control and open it up and inspect for corrosion.
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.
4 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: 20261027T053112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have a 2001 996 C4 Cab . I let the battery go flat after the car had been standing for a few weeks. I had installed a new battery only a few weeks beforehand. I knew there was a fair chance it would go flat so had left the bonnet latch open so could get to the battery to jump start it and managed to get it going ok. However when I powered the drivers side window down , I couldn't get it up again. I took the car for a 30 minute drive but it would not reset the drivers window. I put the car on charge to let the battery upto to full charge. I had the hard top on and seemed to recall that I'd had windows out of synch previously and operating the hood a couple of times got them working again. So a couple of days later i removed the hard top and operated the hood. First time the passenger window went down and and came back up again when the hood came back up, but the driver window didn't move (still fully down) . I did it again but this time when the hood came up the pass window stayed down . I operated it a few more times but neither windows are now coming up . Any ideas appreciated.
From your symptoms (battery drain and window function) you have a malfunction of the alarm control unit (located under the drivers seat).
Remove the drivers seat, or position it so that you can access the alarm control unit. Remove the alarm control and open it up and inspect for corrosion. It is very common to get corrosion in them if any drains are clogged and the carpet becomes wet ( a lot of the times unknown to the operator).
There are lots of threads with instructions on how to do this, and to clean and verify the drains.
Is this the same as replacing an "alarm control unit that has corrosion from a flood caused by clogged drain?"
https://www.ecudoctors.com/products/...-plug-and-play
It seems this fix needs me to send in keys and my ECU?! still looking for more threads on this...
You can get lucky and just get the unit out of the car, and make sure its dried out..
Clean the connectors and reinstall, its a cheap test..
Disconnect the battery BEFORE you disconnect the security module.
its possible your module is just confused from the dead battery incident.
They don't like their mother ship disappearing on them.
This is a source reference. Confirm exact model applicability in the original material.
