Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Battery drain problem fixed....... I think

Thread Tools
 
Search this Thread
 
Old Feb 13, 2005 | 08:11 PM
  #1  
FeedNfrenZ's Avatar
FeedNfrenZ
Thread Starter
Addict
Rennlist Member

 
Joined: Dec 2003
Posts: 546
Likes: 0
From: Houma, LA.
Default Battery drain problem fixed....... I think

My battery was going dead within a few days after charge. I placed an amp. meter in series with the battery and found the car pulling 1.8 amps. I could also hear a clicking noise from under the drivers seat. Turns out the window module was staying energized. Unplugged it and the current dropped to 50 Milli amps. (normal/acceptable). SO....... the window module is supposed to stay energized until a door is opened (windows operate until a door is opened). What is confusing and I can only speculate on is the lights WOULD come on when you open a door and the window WOULD stop working when the door was opened but the window module would never de-energize. I checked resistance to ground on the leg of the window module that causes it to de-energize when a ground is applied and resistance was very high (far from a good ground) by turning the "door open" switches I was able to rub off some of the oxidization on the contacts and get a better ground after which the module WOULD de-enegize and my current draw dropped to 50 MA.
My only conclusion is the interior light module MUST simply take a lesser ground to disengage than the window module.
Hope this helps someone!
or if you have better knowledge of this circuit please feel free to chime in.
Reply
Old Feb 13, 2005 | 10:35 PM
  #2  
Pizza's Avatar
Pizza
Addict
Rennlist Member
 
Joined: Mar 2003
Posts: 379
Likes: 1
From: Houma, LA
Default

I think I read a thread about current draw being 40 MA or less on ALL 928's. Looks like you have at least 10 to go. Get back out there and start Fluking.
Reply
Old Feb 14, 2005 | 12:56 AM
  #3  
FeedNfrenZ's Avatar
FeedNfrenZ
Thread Starter
Addict
Rennlist Member

 
Joined: Dec 2003
Posts: 546
Likes: 0
From: Houma, LA.
Default

WHO NEEDS ENEMIES!
Reply
Old Feb 14, 2005 | 01:31 AM
  #4  
SharkSkin's Avatar
SharkSkin
Rennlist Member
 
Joined: Jan 2004
Posts: 12,620
Likes: 8
From: Boulder Creek, CA
Default

Reply




All times are GMT -3. The time now is 01:06 AM.

story-0
Stunning Porsche 356A Super GT Speedster Auction Fails to Meet Reserve

Slideshow: One of the rarest Porsche 356 Speedsters ever built has resurfaced, offering a glimpse into a little-known chapter of the model's competition history.

By Verdad Gallardo | 2026-06-15 17:16:00


VIEW MORE
story-1
Every Era of 911 Owner Explained in One Sentence

Slideshow: Every generation of Porsche 911 attracts a different type of enthusiast, and each one comes with its own very specific personality.

By Verdad Gallardo | 2026-06-12 12:49:28


VIEW MORE
story-2
Thinking of Buying a Porsche? Do These 10 Things First

Slideshow: Before you start shopping for your dream Porsche, make sure you've checked these 10 items off your list.

By Joe Kucinski | 2026-06-10 15:28:29


VIEW MORE
story-3
Pixar Pals Turned Into 1-of-1 Porsches!

Slideshow: three Porsche 911s inspired by three iconic Pixar characters!

By Michael S. Palmer | 2026-06-09 17:22:06


VIEW MORE
story-4
Theon Goes Full Carbon Fiber With Stunning New Build

Slideshow: Built around a carbon-bodied 964 and a naturally aspirated 4.0-liter flat-six, this bespoke commission highlights how far the restomod formula has evolved.

By Verdad Gallardo | 2026-06-06 14:41:46


VIEW MORE
story-5
Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile

Slideshow: Looking for gift ideas for you Dad or your newest grad? Look no further than these Porsche-themed ideas.

By Joe Kucinski | 2026-06-12 10:37:13


VIEW MORE
story-6
10 Used Porsches Are Selling for Way Too Cheap

Slideshow: These 10 used Porsches offer more driving thrills than their price would suggest.

By Joe Kucinski | 2026-06-03 09:11:13


VIEW MORE
story-7
Tuner Is Converting Porsche 911s Into Shooting Brakes

Slideshow: A Polish Porsche specialist is moving ahead with one of the most unusual 911 conversions in recent memory: a shooting brake version of the 991-generation sports car.

By Verdad Gallardo | 2026-06-01 19:46:47


VIEW MORE
story-8
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917

Slideshow: A Porsche Carrera GT has been transformed into a one-off coachbuilt machine that blends analog supercar engineering with styling inspired by the legendary 917 race cars.

By Verdad Gallardo | 2026-06-01 17:06:04


VIEW MORE
story-9
Is This Convertible Cayenne A Steal, Or A Returnless Investment?

Slideshow: A heavily modified Porsche Cayenne convertible with faux wood trim and a long list of flaws recently sold at auction for surprisingly little money.

By Verdad Gallardo | 2026-05-29 18:52:37


VIEW MORE