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Battery drain in 3 or 4 days 150ma draw fuse 15

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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bandwcow
Posts: 14
Joined: 7 October 2009
Year and Model: 1995 850GTL
Location: Damascus OR

Battery drain in 3 or 4 days 150ma draw fuse 15

Post by bandwcow »

EDIT: my dumb error. Fuse is 15, not fourteen
After three or four days of car sitting battery will be dead. So dead, it cannot be re-charged. Jumping the car and car will start, no problem. 14VDC showing in digi meter with car running.
With car turned off, there is a draw of 150ma between the positive battery cable and battery positive post. Pulled fuses one at a time and re-insterted until fuse 15. Draw went away. When fuse pulled there was a click like a relay dropping. Re-insert fuse and draw is no longer there.
I purchased a third new battery to diagnose the above. Any thoughts on what might be the issue?

I have checked for glowing door lights at night and see nothing.

Thank you
bill
Last edited by bandwcow on 10 Jul 2011, 21:45, edited 2 times in total.

Ozark Lee
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Post by Ozark Lee »

Fuse 14 is the ABS module. They don't go bad that often on a '95 but they do go bad.

They can't really be repaired like the later model modules but since they fail so seldom they are dirt cheap on eBay.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

skysteve
Posts: 2
Joined: 21 May 2023
Year and Model: 1997 850 turbo
Location: victoria bc

Post by skysteve »

1997 850 I have the same problem , I am getting a 300 milliamp draw with everything off, if I take out fuse 15 the draw goes to normal levels

scot850
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Post by scot850 »

You need to look up a wiring diagram and see what fuse 15 runs. The lid of the fuse box should give a few clues.

Then remove the connector from each item until the draw stops. Need to check relays in that circuit as well as then can stick open.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

skysteve
Posts: 2
Joined: 21 May 2023
Year and Model: 1997 850 turbo
Location: victoria bc

Post by skysteve »

correction, not 30 ma draw 15 ma draw

scot850
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Post by scot850 »

These P80's have a current draw. Typical for the earlier ones is 10-20 mA. Only stuff that should really draw is the radio which has a constant feed that stores the radio channels and the alarm system but that should be it. The later 99- can run as high as 40-45mA. Mine does but that is because it has an aftermarket alarm and immobilizer/remote start.

Like I mentioned, you need a wiring diagram and see what is on that fuse/circuit and then disconnect each item to find the culprit.

A 30mA draw would take 1-2 weeks to drain a battery, so if you have only a 30mA draw, there is I suggest a charging system issue, from the alternator to the starter and the wiring. Also check all the grounds a clean and unbroken.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

Nikolaech
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Post by Nikolaech »

My moose consumes 270mA. Thought it should be. Consumption disappears after pulling out the ECU. Thanks, I'll look for the leak.

scot850
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Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Post by scot850 »

Good luck!

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

jmartin919
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Post by jmartin919 »

Check your glove box light switch. They can get pushed back and not open the circuit when the door is closed.
'00 S70 GLT SE
'82 MB 380SL
'11 MB E350 Sport
'84 Chevy C10
'93 850 GLT NA SOLD

scot850
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Post by scot850 »

I looked at an 850 handbook today and saw that as suggested above, the glove box light staying on is a usual suspect. Throw your cell phone in the glove box on video and close the door and leave for a few seconds and check.

You did not mention if it is a sedan or wagon. If it is a sedan, do the same phone trick with the trunk light. The wiring harness breaks at the LH hinge and can cause shorts, same as in a wagon on the LH tailgate hinge.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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