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Planet-9

Alternator issues

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Original source
7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHAlternator issues

Leading reported evidence

Replace fuses and car started without any problem

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 fuses and car started without any problem.

Original post Read captured discussion
Alternator issues
Frequently discussed work

Check fuse box, decided

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

After thinkering for a bit and checking fuse box, decided to putfuse in position D4 and ..

Original post Read captured discussion
Alternator issues
Read full discussion summary

Leading evidence: 'Replace fuses and car started without any problem' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fuse box, decided' (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.

Read captured replies

1 matching discussions · 7 captured posts examined · 1 partial discussions

Compare 4 other evidence results

Check fuse box, decided

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

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

After thinkering for a bit and checking fuse box, decided to putfuse in position D4 and ..

Original post Read captured discussion
Alternator issues

Replace voltage regulator just in case

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

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

Do I really have problem with alternator (planning to replace voltage regulator just in case.

Original post Read captured discussion
Alternator issues

Run car foe about 30 min, got "battery generator" warning

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

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

After running car foe about 30 min, got "Battery Generator" warning and that prompted me to investigate voltage at the battery.

Original post Read captured discussion
Alternator issues

Run obdc tool and no issues reported, you are right

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

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

I run OBDC tool and no issues reported, you are right, it might be wire issue.

Original post Read captured discussion
Alternator issues
Frequently discussed actions (5)

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 box, decided

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

After thinkering for a bit and checking fuse box, decided to putfuse in position D4 and ..

Original post Read captured discussion
Alternator issues

Replace fuses and car started without any problem

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 fuses and car started without any problem.

Original post Read captured discussion
Alternator issues

Replace voltage regulator just in case

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

Do I really have problem with alternator (planning to replace voltage regulator just in case.

Original post Read captured discussion
Alternator issues

Run car foe about 30 min, got "battery generator" warning

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

After running car foe about 30 min, got "Battery Generator" warning and that prompted me to investigate voltage at the battery.

Original post Read captured discussion
Alternator issues

Run obdc tool and no issues reported, you are right

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

I run OBDC tool and no issues reported, you are right, it might be wire issue.

Original post Read captured discussion
Alternator issues
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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Planet-9: 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: 20261027T161234Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

my 2009 Boxster is not producing sufficient voltage. I charged battery and it shows 12.3 V however, when I start the car it hover around 12V, so looks like the problem may be with alternator. How it became is a long story but polarity of batter was reversed and resulted in 3 fused burned. I replaced fuses and car started without any problem. left it fr a while, came back and could not get ignition (car would turn, could smell gas etc.). After thinkering for a bit and checking fuse box, decided to putfuse in position D4 and .. all works well. After running car foe about 30 min, got "Battery Generator" warning and that prompted me to investigate voltage at the battery. I am still puzzled why placing fuse in "designated" empty space allowed ignition (this space is related to DME control unit TRM87 Injection valves (only SRE - anyone know what SRE stands for?) where D3 is responsible for DME control unit TRM30). How come that this solved issue? Do I really have problem with alternator (planning to replace voltage regulator just in case. Any suggestion would be greatly appreciated. Thanks

POST 2Original post

With polarity reversal, nothing would surprise me. No idea about putting a fuse in a blank position. If that position really wasn't supposed to have a fuse - normally in Porsche world - one of the contacts for it would be missing in the fuse box (easy to see with the fuse removed.) There is a fairly good chance you blew out the voltage regulator, but also the possibility you blew out diodes on the alternator. In that case - a new or rebuilt one is your best bet.

POST 3Original post

Pure guess but maybe the multiple fuse positions may have something to do with a change in DME manufacturers or port injection for the base engine or direct injection on the S. No idea why switching allows operation, or whether it's safe to do so. Your alternator could be toast or maybe there's a fusible link or wire burned somewhere between alternator and battery preventing power transfer. Since these things are 4 wheel computers I'd guess that sorting this out will be a horror show. Maybe a specialist with high limit credit card in hand...

POST 4Original post

One thing that is strange no warning on the dash related to alternator not charging. thank you for insights and advice.

POST 5Original post

I run OBDC tool and no issues reported, you are right, it might be wire issue. Will investigate further. Thanks for feedback.

POST 6Original post

I recall reading somewhere or other that there is a electrical distribution module in the front of the car with some high value fuses or fusible links. You may want to start there. I'd suspect it would be at the end of the positive battery cable. Just a WAG.

This is a source reference. Confirm exact model applicability in the original material.