Astra f battery removal

Hi, trying to remove the battery earth from the above, book says, "turn
ignition on, then off,remove connection within 15 seconds to prevent alarm"
Problem is it doesn't, alarm sounds immediately, no 15 sec delay, am I
missing something or is the system faulty.

TIA Chris

 

could be the siren unit has faulty/low battery.
what year is the motor.

my only other usual trick is to disconnect the siren unit with the ignition
on.

then do the work
then reconnect the siren unit with the ignition on.

mike

 

Thanks for that, it's a 98 model, with no other symptoms of low batt, ie
random soundings etc, its the 1.7 DT model & the sounder is in the engine
bay rather than the wing panel so should be easier to dis.
Chris

 

ok yep
the same game i have with my sintra
mines in the wing panel though! pig!

just get the wet towels and the cardboard box ready just incase!

a nice field is useful also!

mike

 

Reckon so, large field is way to go, if the book is correct should only
sound for 30 seconds, yea right
Chris

 

Why do you need to remove the earth? I'm thinking that if you are replacing
the battery then use jump leads or something just to keep power to the
electronics.

Mike

 

na it don't if it thinks its been disconnected then it goes till the batpack
flattens.
should be ok if the alarms is off and the ignition is on.
thats the way we always did em anyhow.
mike