Engine: 70 R: - 2 x Bosch Car Batteries drained

vol · Oct 29th, 2014, 20:45

Hi lads,

this is kind of weird, well im no good with electrics, & that type of stuff..

so this is what happened, I noticed on Sat morning the car didn't have a strong turn over when I started it.? didn't think much of it, next day battery flat as a pancake, took the Bosch one from my 850 & the exact same thing & now two batteries drained car hasn't moved, could it be the alarm.? I think once I just locked it with the key & didn't use the fob, just to rule that out..still ate the power, car is 1998 S70R

Cheers vol.

kevvydude · Oct 29th, 2014, 21:12

it might be a duff door light switch or the glove box light might be staying on, have a look around the car in the pitch black, just a thought

also it could be the alarm siren poss

vol · Oct 29th, 2014, 21:19

Nice 1 Kev

had one of them on the drivers door couple of weeks back

I just took out the bulb it was the light down @ the drivers feet just under the dash, & wow was the bulb "Hot" looked all around the car the wk-nd & even turned out the boot light just in case

kevvydude · Oct 29th, 2014, 21:27

my mate had the prob with his floor lights, kept draining his battery,so i went round at night, and saw that it,s was very dim,also his red door light was on, could,nt find the fault, but took bulbs out and no more flat battery, but poss earth fault, might be door switch breaking down.

vol · Oct 29th, 2014, 21:35

Cheers m8 will have to charge battery & check it out the wk-nd
Is there a diagram on where the door switch is located, I was thinking about this also..oh & just to say that the indecators don't flash when the alarm is set & they do flash when you turn it off..

kevvydude · Oct 29th, 2014, 21:48

it might be a alarm fault then, im not up on volvo alarms as mine is a thatcham 1 alarm. the volvo immobilizer still works tho,so cant help on alarms.

SwedishBus · Oct 30th, 2014, 00:21

It sounds like the door microswitch problem again - pulling the bulbs out of the interior circuits doesn't help, as the body control unit doesn't shut down if the door is still showing "open" - the controller consumes a fair bit of current on its own (something like 135mA) when the whole car should have shut-down to 20mA normally.

vol · Oct 30th, 2014, 00:40

Many thanks SwedishBus

just been going through some old threads & found this

http://www.volvoforums.org.uk/showthread.php?t=124280

seems to be the answer to all my problems..

really glad it's an easy fix

Cheers Lads & "Much appreciated"

Vol.

Oct 29th, 2014, 20:45	#1
vol Master Member Last Online: Yesterday 14:12 Join Date: Aug 2009 Location: Dublin	2 x Bosch Car Batteries drained Hi lads, this is kind of weird, well im no good with electrics, & that type of stuff.. so this is what happened, I noticed on Sat morning the car didn't have a strong turn over when I started it.? didn't think much of it, next day battery flat as a pancake, took the Bosch one from my 850 & the exact same thing & now two batteries drained car hasn't moved, could it be the alarm.? I think once I just locked it with the key & didn't use the fob, just to rule that out..still ate the power, car is 1998 S70R Cheers vol. __________________

Oct 29th, 2014, 21:12	#2
kevvydude Premier Member Last Online: Nov 9th, 2017 22:33 Join Date: Oct 2007 Location: Aldershot Hampshie	it might be a duff door light switch or the glove box light might be staying on, have a look around the car in the pitch black, just a thought also it could be the alarm siren poss __________________ a clean car requires a certain amount of mental illness ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ Last edited by kevvydude; Oct 29th, 2014 at 21:15.

Oct 29th, 2014, 21:19	#3
vol Master Member Last Online: Yesterday 14:12 Join Date: Aug 2009 Location: Dublin	Nice 1 Kev had one of them on the drivers door couple of weeks back I just took out the bulb it was the light down @ the drivers feet just under the dash, & wow was the bulb "Hot" looked all around the car the wk-nd & even turned out the boot light just in case __________________

Oct 29th, 2014, 21:27	#4
kevvydude Premier Member Last Online: Nov 9th, 2017 22:33 Join Date: Oct 2007 Location: Aldershot Hampshie	my mate had the prob with his floor lights, kept draining his battery,so i went round at night, and saw that it,s was very dim,also his red door light was on, could,nt find the fault, but took bulbs out and no more flat battery, but poss earth fault, might be door switch breaking down. __________________ a clean car requires a certain amount of mental illness ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ Last edited by kevvydude; Oct 29th, 2014 at 21:31.

Oct 29th, 2014, 21:35	#5
vol Master Member Last Online: Yesterday 14:12 Join Date: Aug 2009 Location: Dublin	Cheers m8 will have to charge battery & check it out the wk-nd Is there a diagram on where the door switch is located, I was thinking about this also..oh & just to say that the indecators don't flash when the alarm is set & they do flash when you turn it off.. __________________

Oct 29th, 2014, 21:48	#6
kevvydude Premier Member Last Online: Nov 9th, 2017 22:33 Join Date: Oct 2007 Location: Aldershot Hampshie	it might be a alarm fault then, im not up on volvo alarms as mine is a thatcham 1 alarm. the volvo immobilizer still works tho,so cant help on alarms. __________________ a clean car requires a certain amount of mental illness ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ

Oct 30th, 2014, 00:21	#7
SwedishBus Member Last Online: May 5th, 2024 21:50 Join Date: Oct 2014 Location: Isle of Skye	It sounds like the door microswitch problem again - pulling the bulbs out of the interior circuits doesn't help, as the body control unit doesn't shut down if the door is still showing "open" - the controller consumes a fair bit of current on its own (something like 135mA) when the whole car should have shut-down to 20mA normally.

Oct 30th, 2014, 00:40	#8
vol Master Member Last Online: Yesterday 14:12 Join Date: Aug 2009 Location: Dublin	door microswitch Many thanks SwedishBus just been going through some old threads & found this http://www.volvoforums.org.uk/showthread.php?t=124280 seems to be the answer to all my problems.. really glad it's an easy fix Cheers Lads & "Much appreciated" Vol. __________________

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)