S Type battery drain

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Sep 8, 2013 | 11:07 AM

#21

gr1

Senior Member

Joined: Mar 2013

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From: blackburn

Quote:

Originally Posted by drun

I had this same issue and my battery drain problem was a faulty ignition switch, (the back half can be replaced without removing the key portion). These are a result of heavy keychains that leave the switch partially on and it burns the contacts.
There was a thread on here quite a while ago with a reply from a dealership mechanic stating this was so frequently the cause that they automatically changed out the rear of the ignition switch first.

I put new battery on so far so good 1 week in

Dec 28, 2013 | 03:33 AM

#22

gr1

Senior Member

Joined: Mar 2013

Posts: 130

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From: blackburn

s type2.7 battry

Quote:

Originally Posted by gr1

did you find the fault I also think I have a drain as iv had the battery tested its ok. without any warning in two week ago my battery was flat jump start from breakdown van ran ok till 2 week later same thing.can any1 help

just an update having visited 3 garages all told me battery ok. after one month still going flat so replaced battery. 4month on no problems

Dec 28, 2013 | 05:39 AM

#23

JagV8

Veteran Member

Joined: May 2009

Posts: 27,519

Likes: 4,910

From: Yorkshire, England

Sounding good! Thanks for the update.

Dec 28, 2013 | 10:22 AM

#24

clubairth1

Veteran Member

Joined: May 2009

Posts: 12,086

Likes: 3,364

From: home

The battery turns out to be the problem for a lot of these weird electrical problems.

Glad it worked for you!
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Nov 24, 2022 | 02:32 PM

#25

Matrix1906

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Joined: Nov 2022

Posts: 3

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From: Urbana

If there was a drain, replacing battery may have fixed it, if low battery voltage was triggering modules and such. But if the drain still exists, replacing battery only masks the drain, requiring more days to elapse before the car will not start. I would be interested in knowing does car start after several days of sitting.

Nov 24, 2022 | 04:27 PM

#26

S-Type Owner

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Joined: Feb 2018

Posts: 1,797

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From: The wilds of Montana

The last post to this thread was made just shy of nine years ago... The OP has not posted to the forum in roughly three years, so unless you are very lucky, a response is likely not forthcoming.

Dec 16, 2022 | 01:17 AM

#27

GMoney1967

Junior Member

Joined: Dec 2022

Posts: 1

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From: Erie,. PA

I just recently had my 2002 S-Type broken down for 4 months. The battery was going flat. The PATS disabled the engine. And on the couple of occasions that I got lucky and magically got it to start, it wouldn't shut down. I finally found out what the problem was. In the trunk/boot look for a fuse called the transit relay fuse. Remove it and throw it as far away from the car as possible. Look it up and you will see what it's for. I scratched my head for 4 months and hopefully I can save you some trouble.