10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCentral Locking
Leading reported evidence
Replace fuse
Performed · outcome unconfirmed
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 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
Hi, I have replaced the fuse and checked that the connectors are pushed in but still no luck.
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
You could double-check the fuse, but apart from a bad connection on one of the plugs, I can only think it must be an internal fault with the alarm module.
Leading evidence: 'Replace fuse' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'fuse' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check fuse' (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 suspect a cause
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.
Suspected cause
If it doesn't, then it is probably the fuse for the central locking, which is located between the two connectors on the alarm unit, located under the passenger seat.
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
You could double-check the fuse, but apart from a bad connection on one of the plugs, I can only think it must be an internal fault with the alarm 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 · Original poster
Have changed the battery in the key but not sure if I have to re-set it.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check fuse
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
You could double-check the fuse, but apart from a bad connection on one of the plugs, I can only think it must be an internal fault with the alarm module.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
fuse
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.
Suspected cause
If it doesn't, then it is probably the fuse for the central locking, which is located between the two connectors on the alarm unit, located under the passenger seat.
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.
10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 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: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi, My central locking is not working on my 2001 996 C4, I can lock it manually with key but I get a single horn beep. Have changed the battery in the key but not sure if I have to re-set it.
Can anyone advise what to check.
Hi Neil
A single beep from the alarm horn usually points to something not shut correctly, either the glove box on a Mk2, oddments tray in the centre console, door open, fuel cap, luggage compartment or engine compartment being left open or one of there switches has a fault. A Porsche tester will be able to find the culprit but The following links may help you find the issue.
Good luck
Andy
https://www.porscheclubgb.com/forum/tm.aspx?m=570901
https://www.porscheclubgb.com/forum/tm.aspx?m=685707&high=central+locking
When you lock the driver's side with the key, does the passenger side actually lock? If it doesn't, then it is probably the fuse for the central locking, which is located between the two connectors on the alarm unit, located under the passenger seat.
If you move the seat all the way forward, and adjust it as high as possible, you should be able to reach the fuse from the rear footwell. The two-wire connector is probably the one for the seat belt deactivation kit (for the child's seat). It is usually taped to the underside of the seat, but they often fall down.
Hi Richard,
Finally managed to get to the fuse, had to remove the seat but got there. The 15 amp fuse is fine it had not blown, anything further I can check?
Regards
Neil
Any sign of dampness around the alarm module? When you lock the car with the key in the door, do you do it with a single turn of the key? Does it lock the passenger side when you lock the driver's side?
Hi Richard, No dampness around the unit, when I put the key in the drivers door I turn it to the left once and it make a single beep. The passenger side does not lock.
Regards
Neil
That's exactly the symptoms of a blown fuse on the alarm module, so I'm surprised you found it to be intact. That fuse powers the central locking part of the alarm module. The rest of the system must be working, otherwise you wouldn't be able to start the car. (The immobiliser wouldn't be working). You could double-check the fuse, but apart from a bad connection on one of the plugs, I can only think it must be an internal fault with the alarm module.
Hi, I have replaced the fuse and checked that the connectors are pushed in but still no luck. Will have to get the alarm module checked out.
Thanks for your much needed help.
Regards
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