16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH97 Base battery drain - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Check stray draws and seems
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Performed · outcome unconfirmed · Original poster
Checked for stray draws and seems to be a 2amp draw (.2 on my DMM)
97 Base battery drain - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Check stray draws and seems' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check stray draws and seems' (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 · Original poster
Every thing off, doors closed, no key, frunk light disconnected, interior lights disconnected, radio off.
97 Base battery drain - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Disconnect negative at full rest
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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
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Performed · outcome unconfirmed · Original poster
.10 amps on 10a setting between the disconnected negative at full rest.
97 Base battery drain - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Disconnect radio off
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 · Original poster
Every thing off, doors closed, no key, frunk light disconnected, interior lights disconnected, radio off.
97 Base battery drain - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Disconnect alternator power lead
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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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
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Suggestion
You can always disconnect the alternator power lead to find out
97 Base battery drain - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
16 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 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.
My 97 base doesn’t get driven that much, drove it a few miles the other night. A little hesitant to start. Two days later, no start, barely nudged the starter. Charged it up, good start. Alternator putting out 14v+. Next morning, no start, down to 2 volts. Battery is 4+ yrs so I replaced it.
Same symptoms after new battery. Checked for stray draws and seems to be a 2amp draw (.2 on my DMM)
I’ll start pulling fuses tomorrow, but oddly when I put my charger on the re-charge, the drivers window went all the way down.
Suggestions please?
No effect.
This car has always hummed a bit after turning off. Sorta like a softer sound similar to a microwave makes but not as loud.
Curuiosly, reattaching the trickle charger to both windows go all the way down.
Also, my top is permanently dis-engaged and only works manually. Wondering if top sensors are seized somehow?
Car runs and drives, alt puts out 14+ v. Possible the new battery is defective?
Major voltage drop.
Every thing off, doors closed, no key, frunk light disconnected, interior lights disconnected, radio off.
Every 45 sec the voltage drops nearly 1/2v but after 15 secs returns to full voltage but a few volts less than before. Went from 12+v to under 9v in about 2 hours.
Almost has to be alarm? I’ve never had the alarm go off in the 5-6 yrs I’ve owned)
Also, one time I had rodent issues in the engine compartment but once fixed, no problem.
Was getting inconsistent amp reading from my multimeter, turns out one of the lead cables is frayed. Switched to an older one and the readings are still odd.
.10 amps on 10a setting between the disconnected negative at full rest. 45 seconds or so jumps up to 3.10 amps. Fairly dramatic jump.
Pulled the alarm fuses, horn, cig lighter, doors, radio, dome lights, etc. no Change.
Alternator voltage regulator diode maybe?
Sat in the car for awhile expecting at least a mild hum from 3 amps-nothing.
After replacing DMM probes I went through the fuse panel again and E4 seems to stop the drain. E4 is Seat Back Control, right side.
Oddly my seats don’t appear to be connected to anything electrical….
I did have surgery done on the right side to to repair a dent. Maybe something is grounding from that?
Turns out my seat backs to have an electric adjustment- mine hasn’t functioned since I acquired it so kinda forgot. Duh!
After pulling the right side fuse the parasitic drain relented. Took the new battery back to the store, now tests bad so left with a new one. Held a charge overnight.
Not sure how to inspect of remove the switches from the seats to test. Seems that the passenger mirror is on the same circuit so the defect may be related to the repair I had done to that door and mirror awhile back.
POSES recommends removing seat first
1. Remove switch -2- from the seat. Unscrew fastening screws -1-. Pull switch -2- upwards and remove forwards -arrow-.
2. Unscrew control unit -4- in conjunction with seat memory fastening screws -3-. Remove control unit -4- and fold it forwards. Pull out the plug -arrow- together from the control unit. Unclip the plugs starting from the right, natural, blue, black.
3. Plug connection -6, 7, 8- without control unit seat memory Pull apart the plugs underneath the seat -6- seat backrest adjuster, -7- lumbar support, -8- backrest and separate the cable ties for the cable.
4. Cable routing between seat cushion and seat frame. -A- Seat cushion -B- Switch -C- Cable Pull out the plugs one after the other through this opening.
