4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCabrio switch makes the indicator blink 4 times
Leading reported evidence
Replace on those things was the battery
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Performed · outcome unconfirmed · Original poster
The only think I changed on those things was the battery on both, and the fuel accumulator on one of them.
Leading evidence: 'Replace on those things was the battery' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace on those things was the battery' (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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Suggestion
What switch is bypassed when you use the door lock option?
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.
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Suggestion · Original poster
vMy 2002 C4 Cabrio top more often than not, will fail to open or close when using the switch.
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.
Pelican Parts: 1 discussions
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Generation: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
vMy 2002 C4 Cabrio top more often than not, will fail to open or close when using the switch. It always works (up/down) when I operate it with the key.
Condition under which the top will consistently work:
* insert key into the door lock
* turn left or right and hold
* top goes up/down respectively
Conditions under which the top INconsistently works:
* Key on the ingition (engine running or not)
* e-brake engaged all the way
* door(s) open or close
* activate the convertible switch
Results:
* Sometimes the top will go Down, but most times the top indicator on the dashboard will blink 4 times and nothing happens
* Sometimes the top will go UP, but most times I'll get the 4 blinks
* Sometimes the top will go UP/Down without any issues, under the same conditions.
Battery is less than two months old, and have no indication that the battery may be the root of the problem
All joints on the top are properly lubricated
Do not hear any grinding noises, and when the top moves, the top motor is smooth and quiet
I've read all I could find on this topic and I'm leaning towards a microswitch, Shouldn't the 4 blinks indicate which microswitch to replace? how do I test each?
Thank you
Thank you FPB111.
Turns out the hand brake switch was bad. I replaced it today, but I must have forgotten to re-connect something. The headunit (premium sound, package double din, Nav, and obc) displays "Phone" and won't turn off.
Turning the key off won't shut down the PCM display, removing fuse D8 and D9 won't shut down the display. Only by disconnecting the battery does the display shut down, though as soon as I turn the key, the display comes back on and require battery disconnect.
This is really frustrating, I've had 2 Air Cooled Porsches and I never had a problem with them. One I had for 14 years, and the other for about 3 years. The only think I changed on those things was the battery on both, and the fuel accumulator on one of them.
