9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHAC Control Unit Failed
Reported or suspected cause
most commonly repaired by replacing the electrical part
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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 identifying 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.
Reported cause
The problem is most commonly repaired by replacing the electrical part for ~$15 - $100 depending on where you buy it, 4A0905849B.
Leading evidence: 'most commonly repaired by replacing the electrical part' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'most commonly repaired by replacing the electrical part' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Repair by' (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 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
The problem is most commonly repaired by replacing the electrical part for ~$15 - $100 depending on where you buy it, 4A0905849B.
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
The problem is most commonly repaired by replacing the electrical part for ~$15 - $100 depending on where you buy it, 4A0905849B.
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
Replacing the electrical part of the ignition switch resolved all of these issues for me.
Replace electrical part of the ignition switch" entail
Suggestion or failed attempt
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 contain suggestions
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
OK pardon my ignorance, but what exactly does "replace the electrical part of the ignition switch" entail?
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Suggestion
When my switch was failing, sometimes HVAC wouldn't work; other times, the display would function but I could not get the fan to turn on / change speed.
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.
9 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
It was cycling on and off but the controls did not work.
I have a 99 c2 with 100k miles. Yesterday The a.c. controller lights were not lit when I started car. Turned car off and the lights came on and AC worked fine. This morning same problem but this time no light after repeated attempts. No AC stuff working. Windows down!
Is it time for a new unit or might it be repairable?
Thanks!
Your symptoms are one of the more common problems when the electrical section of the ignition switch starts to fail.
Do a Google search for "996 ignition replacement" or "996 ignition failure" There are about 1000 threads out there.
The problem is most commonly repaired by replacing the electrical part for ~$15 - $100 depending on where you buy it, 4A0905849B. The dealer no longer carries the switch. Porsche changes the whole lock assembly (~$300) because they had so many problems with it.
Hey cinellipro, don't mean to hijack your thread but, coincidentally, my a/c / heater fan does not seem to be working, and this is coincident with my ignition switch acting really funky.
I turn the key to shut the engine off and the key is tough to take out, or the key comes out and the car chimes as it thinks the key is still in the ignition once I'm open the door.
So is my switch on the way out, and this could impact the HVAC controls?
To both posters, yes. The switch as fpb111 indicated can cause all sorts of havoc with the HVAC controls and other systems as well.
When my switch was failing, sometimes HVAC wouldn't work; other times, the display would function but I could not get the fan to turn on / change speed.
Replacing the electrical part of the ignition switch resolved all of these issues for me.
Thanks for the suggestions, I'll order the ignition part. I started the car earlier and the AC came on on its own but with no display. It was cycling on and off but the controls did not work. The next time I drove the car everything worked, LCD and all controls. Right now I'm at the everything seems fine stage. Cannot explicate that.
