11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHMy 2002 996 C4S Developed Electrical Issues under hard acceleration
Reported or suspected cause
indeed just the rotary switch
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 · Original poster
The headlight issue was indeed just the rotary switch.
My 2002 996 C4S Developed Electrical Issues under hard acceleration
Read full discussion summary
Leading evidence: 'indeed just the rotary switch' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'indeed just the rotary switch' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean contacts' (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 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.
My 2002 996 C4S Developed Electrical Issues under hard acceleration
Clean contacts
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.
My 2002 996 C4S Developed Electrical Issues under hard acceleration
Replace alternator this weekend and glad
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
I replaced my alternator this weekend and glad to report no more battery light flickering while under full throttle.
My 2002 996 C4S Developed Electrical Issues under hard acceleration
Test by your local autoparts store
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
Have your battery (and alternator) tested by your local autoparts store.
My 2002 996 C4S Developed Electrical Issues under hard acceleration
Coverage and how to read this overview
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.
11 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.
I've had my new used 2002 C4S for 3 days. I've driven it daily, moderately with some hard acceleration. Today I accelerated hard during a highway merge and the battery indicator light lit on the instrument panel. Later in the drive multiple other lights lit, including ABS and PSM off. All but the battery go away when I turn off and restart the car. However every time the car goes above about 1300 rpm they come back, and go off below that. When above 1300 rpm the voltmeter pegs at 16v, otherwise it reads 14v.
The car drives seemingly normal and I have heard no odd sounds. When the other lights come on above 1300 rpm the LCD readouts on he radio and hvac dim significantly. The battery appears to hold charge, but this only developed this afternoon. It has rained off/on the past two days.
Any suggestions about what caused this and why? Anything I can check and maybe try before headed to the shop? I'm guessing it is something with the alternator or voltage regulator based on some other posts I've read, but since I'm new to this car and trying to start off on the right foot I thought I'd ask.
Thanks.
So it was the voltage regulator. Had to replace the battery too. It was a moll, probably questionable to begin with ( during this proxess I tried charging it and checked the fluid levels, and they were very low) and this killed it. Had the Indy shop do a post buy inspection and all clear once the regulator was installed, well almost . Alternator was good. Thanks for the good advice everyone. Now time to fix the high beams which only tun on half the time so it passs state inspection. Hopefully just some dirty contacts.
these 02 c4s's
I have a similar issue when i accelerate hard. battery light flashes quickly at me. I replaced the voltage regulator about 4k km ago so I am thinking it's my alternator now...
let me know about your HL switch also. mine works maybe 1/4 of the time. I was going to buy a new HL switch but they are pricey and I need brakes! Let me know how cleaning it out works...
The headlight issue was indeed just the rotary switch. There were two loose connections there. Contacts were cleaned up and it all works now. Passed inspection. I ended up replacing the bulbs too as they were showing some black residue in the bulbs, probably a result of intermittent connections. At least they were only $18 ea. All this stuff here wasn't bad parts wise, shop labor is killing me. Time to clean out the garage so I have a place to work.
good to hear that. did you take apart the switch to fix it or just cleaned it up with compressed air or something?
I replaced my alternator this weekend and glad to report no more battery light flickering while under full throttle.
