This might be a daft question, but I'll ask anyway

DT19 · Apr 12th, 2016, 11:06

My alarm unit has a dead battery and tells me about it every time I start the car. It was like that when I bought it and I reckon the board is probably knackered. I'd like to take it out of the car but carry on using the car until I can either fix the old unit or buy a new one.

Obviously, it's not working properly now but will running the car without the alarm unit in cause any other issues? Does it make any difference if it's disconnected rather than just broken?

Brendan W · Apr 12th, 2016, 11:19

Pull the alarm fuse in the interim. The remote still works, the led flashes etc.
It will prevent the main battery draining either from repeated triggering of the alarm or current finding a path to ground through the pcb on the siren module which is probably being corroded by battery leak.
Even with the fuse out you can sometimes hear a strange noise from the siren which will appear to come from the ecu box.

reggit · Apr 12th, 2016, 11:29

.... and yes you can still use the car without the module fitted. (there are rivents though holding the arch liner in place, so easier if you can fix or swap it out the same day)

DT19 · Apr 12th, 2016, 12:05

The fuse is already out so that's sorted and I don't have a problem with riveting it back up with the unit out. Drilling out the original rivet is more of an issue though. Why is it with cordless drills I can never find the battery charger?

Georgeandkira · Apr 12th, 2016, 12:27

Which fuse is that? Kira

Brendan W · Apr 12th, 2016, 12:29

On older cars it's F38 in the box at the right side of the dash. Newer cars it's F8 in a box under the steering column.

Georgeandkira · Apr 12th, 2016, 12:32

Thank you. My 2002 is likely an "older" car. Are 2008 and later "newer"? Kira

Brendan W · Apr 12th, 2016, 13:15

Mine is younger than yours and it's at the end of the dash. I think the change was earlier 05/06 ?

Apr 12th, 2016, 11:06	#1
DT19 Master Member Last Online: Yesterday 17:04 Join Date: Feb 2014 Location: York	This might be a daft question, but I'll ask anyway My alarm unit has a dead battery and tells me about it every time I start the car. It was like that when I bought it and I reckon the board is probably knackered. I'd like to take it out of the car but carry on using the car until I can either fix the old unit or buy a new one. Obviously, it's not working properly now but will running the car without the alarm unit in cause any other issues? Does it make any difference if it's disconnected rather than just broken?

Apr 12th, 2016, 11:29	#3
reggit Premier Member Last Online: May 23rd, 2024 19:56 Join Date: Feb 2012 Location: Preston	.... and yes you can still use the car without the module fitted. (there are rivents though holding the arch liner in place, so easier if you can fix or swap it out the same day) __________________ 2009 Volvo V70 D5 (Polestar 225bhp) r-design 180,000 miles

Apr 12th, 2016, 11:19	#2
Brendan W Premier Member Last Online: Apr 2nd, 2024 19:50 Join Date: Dec 2007 Location: Wexford	Pull the alarm fuse in the interim. The remote still works, the led flashes etc. It will prevent the main battery draining either from repeated triggering of the alarm or current finding a path to ground through the pcb on the siren module which is probably being corroded by battery leak. Even with the fuse out you can sometimes hear a strange noise from the siren which will appear to come from the ecu box.

Apr 12th, 2016, 12:05	#4
DT19 Master Member Last Online: Yesterday 17:04 Join Date: Feb 2014 Location: York	The fuse is already out so that's sorted and I don't have a problem with riveting it back up with the unit out. Drilling out the original rivet is more of an issue though. Why is it with cordless drills I can never find the battery charger?

Apr 12th, 2016, 12:27	#5
Georgeandkira Premier Member Last Online: May 24th, 2024 02:14 Join Date: Feb 2009 Location: Hackensack	Which fuse is that? Kira

Apr 12th, 2016, 12:29	#6
Brendan W Premier Member Last Online: Apr 2nd, 2024 19:50 Join Date: Dec 2007 Location: Wexford	On older cars it's F38 in the box at the right side of the dash. Newer cars it's F8 in a box under the steering column.

Apr 12th, 2016, 12:32	#7
Georgeandkira Premier Member Last Online: May 24th, 2024 02:14 Join Date: Feb 2009 Location: Hackensack	Thank you. My 2002 is likely an "older" car. Are 2008 and later "newer"? Kira

Apr 12th, 2016, 13:15	#8
Brendan W Premier Member Last Online: Apr 2nd, 2024 19:50 Join Date: Dec 2007 Location: Wexford	Mine is younger than yours and it's at the end of the dash. I think the change was earlier 05/06 ?

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