Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 09-01-2013, 06:49 AM   #1
krh
krh
 
Join Date: Aug 2013
Location: Maine
Posts: 5
Battery drain..

Bought 2002 Boxster S last Sept. Car wouldn't start after 4-5 days without using it. New battery last year. This year got worse. Did some reading and found many ignition switches were at fault. Easy relacement, but it wasn't the problem. Had a draw of 750 milliamps. Removed Fuse B F1. and draw went to 50 milliamps. This fuse has Ignition cluster, Triptronic diagnosis, ASR/PSM button listed. Any help from here would be much appreciated!! Great forum

krh is offline   Reply With Quote
Old 09-01-2013, 08:46 AM   #2
krh
krh
 
Join Date: Aug 2013
Location: Maine
Posts: 5
Just re-tested and also found second significant draw coming from Row D F8. Radio. With these two fuses pulled there is almost no draw. Thanks again for any help!
krh is offline   Reply With Quote
Old 09-01-2013, 09:02 AM   #3
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,174
You obviously have a large parasitic draw on those circuits, particularly B F1. Time to start looking at why.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 09-01-2013, 10:38 AM   #4
krh
krh
 
Join Date: Aug 2013
Location: Maine
Posts: 5
B F1 sure looks like the problem, but I really don't know where to start looking for a fix.
krh is offline   Reply With Quote
Old 09-01-2013, 12:17 PM   #5
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,174
Quote:
Originally Posted by krh View Post
B F1 sure looks like the problem, but I really don't know where to start looking for a fix.
Start by figuring out what is on that circuit, then disconnect them one at a time to you find the high draw item(s).
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 09-01-2013, 05:36 PM   #6
krh
krh
 
Join Date: Aug 2013
Location: Maine
Posts: 5
Thanks JFP but I am new pretty new to this and don't know where to look for the circuits beyond the fuse box to disconnect. Is there a wiring pattern that I can follow?
krh is offline   Reply With Quote
Old 09-01-2013, 05:43 PM   #7
Registered User
 
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
Is there anything electrical that is not stock on the car? Trunk lights not turning off?
stephen wilson is offline   Reply With Quote
Old 09-01-2013, 07:10 PM   #8
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,174
Quote:
Originally Posted by krh View Post
Thanks JFP but I am new pretty new to this and don't know where to look for the circuits beyond the fuse box to disconnect. Is there a wiring pattern that I can follow?
If you have access to either the OEM service manual set or the Bentley manual for the Boxster, the answer is yes.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 09-02-2013, 06:30 AM   #9
Registered User
 
LAP1DOUG's Avatar
 
Join Date: Aug 2011
Location: USA
Posts: 411
Quote:
Originally Posted by JFP in PA View Post
If you have access to either the OEM service manual set or the Bentley manual for the Boxster, the answer is yes.
Good luck reading the Bentley wiring diagrams. The Boxster wiring diagrams are the worst set of drawings I have ever tried to follow.
__________________
Kippis
LAP1DOUG is offline   Reply With Quote
Old 09-02-2013, 07:56 AM   #10
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,174
Quote:
Originally Posted by LAP1DOUG View Post
Good luck reading the Bentley wiring diagrams. The Boxster wiring diagrams are the worst set of drawings I have ever tried to follow.
And they are basically copies of the OEM manual diagrams.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 09-02-2013, 08:37 AM   #11
krh
krh
 
Join Date: Aug 2013
Location: Maine
Posts: 5
No Stephen, there is nothing else on in the car, I unplugged the lights to make sure they weren't on. It is all stock on the car. The diagrams sound fun. Its raining here in Maine today..maybe I can get my wife to sort through it. Dealer is 95 miles away. I was hoping to figure it out, but this is sounding more complicated than I thought it would be. Thanks for all the help. If anyone can think of anything else to do, please post. Lost in the Maine woods.

krh is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 09:40 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page