Planet-9

2007 Cayman S Parasitic Battery Draw

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5 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH2007 Cayman S Parasitic Battery Draw

Leading reported evidence

Replace their radios

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
's where people changed their radios for a modern Android unit.
Original post Read captured discussion
2007 Cayman S Parasitic Battery Draw

Frequently discussed work

Disconnect ignition switch and the behavior remains

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 thought this could be the ignition switch based on other forum threads, but I pulled and disconnected the ignition switch and the behavior remains.
Original post Read captured discussion
2007 Cayman S Parasitic Battery Draw

Read full discussion summary

Leading evidence: 'Replace their radios' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect ignition switch and the behavior remains' (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.

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1 matching discussions · 5 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Disconnect ignition switch and the behavior remains

Suggestion or failed attempt

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 thought this could be the ignition switch based on other forum threads, but I pulled and disconnected the ignition switch and the behavior remains.
Original post Read captured discussion
2007 Cayman S Parasitic Battery Draw

Use volt meter across the top of the fuse

Suggestion or failed attempt

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
An alternative to pulling fuses to find the current is to use a volt meter across the top of the fuse.
Original post Read captured discussion
2007 Cayman S Parasitic Battery Draw

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Disconnect ignition switch and the behavior remains

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 thought this could be the ignition switch based on other forum threads, but I pulled and disconnected the ignition switch and the behavior remains.
Original post Read captured discussion
2007 Cayman S Parasitic Battery Draw

Replace their radios

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
's where people changed their radios for a modern Android unit.
Original post Read captured discussion
2007 Cayman S Parasitic Battery Draw

Use volt meter across the top of the 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
An alternative to pulling fuses to find the current is to use a volt meter across the top of the fuse.
Original post Read captured discussion
2007 Cayman S Parasitic Battery Draw

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.

5 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: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hello, My 2007 Cayman S has a parasidic battery draw when dormant. I cannot make it go away by pulling fuses one at a time (tried that to try to isolate the problem). My in series amp meter reads approx. 1.1 amps for 8 seconds, then drops to about 0.2 amps for 4 seconds, then the cycle starts over. When the high point amp fluctuation occurs, a tiny click sound can be heard around the speedometer. It’s almost inaudible but since I am right there monitoring amps fluctuate I recognized there is a regular connection to this small sound and the high point of amps. Also, at the low point amp reading I hear the CD player make a soft noise like it is “parking”the CD player. The car does this continuously while all is locked and dormant. This results in dead battery in about 3 days. I pulled the radio/CD fuse and this resulted in the high point and low point amp draw to be reduced to 0.8 amps and 0.12 amps, but still the same regular up and down fluctuation and still the little click behind/near the speedometer. I thought this could be the ignition switch based on other forum threads, but I pulled and disconnected the ignition switch and the behavior remains. has anyone experienced this form of parasitic draw? Any help or insight is much appreciated.

POST 2Original post

There are two power feeds to the stock radio system, one switched and one unswitched. Did you locate fuses for both of them? Or you might pull out the radio and unplug the connectors from the back of it and see what happens. Clicking behind the speedo has been an issue on some 981 's where people changed their radios for a modern Android unit. Also - welcome to Planet-9, the Friendly Porsche Forum for Owners Seeking Answers! We have a new members forum at https://www.planet-9.com/forums/new_members/ - it's a good place to introduce yourself and show off some photos of your Cayman. We love photos.

POST 3Original post

I only pulled the D-9 radio and separately D-10 amp/subwoofer fuses. I’ll look into the second unswitched feed and see if I can find it. Thanks.

POST 4Original post

An alternative to pulling fuses to find the current is to use a volt meter across the top of the fuse. If there is current going through a fuse there should be a very small voltage drop as well. Saves a bit of time.

POST 5Original post

Did you track down your problem, having the same issue

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