I know it's not strictly in the right section, but it's a technical question rather than general chat!!

 

Basically, my brother in laws parents have an S Reg Corsa and the alarm's playing up - going off randomly.

 

They're in their 80's and the garage are trying to charge them £400 to replace the unit. I've had a scout around the internet and it seems that the 'powersounder' in the n/s wheelarch has an internal battery which, when it fails, causes the alarm to trigger. There's supposed to be a way of replacing the battery itself, but if you damage the unit the car will auto-immobilse and need to be reset with the vauxhall diagnostic tool.

 

So... does anyone know how to disable/ bypass the alarm, or any other advice? Please PM me rather than post... and believe me, I'm not a TWOC'er trying to steal a Corsa!!

 

Thanks in advance!

 

Rich

its deffo not the battery in the siren thats at fault. does the alarm have interior ultrasonics ? & do you know what the make and model of alarm it is ?. the most common faults for alarms that go off as and when they feel like it is the ultras & then the bonnet switch.

it's just a standard fit vauxhall, will have a look at the bonnet switch too as I saw that mentioned.

 

Why do you say it's def not the battery? Saw that explanation on several vx sites...

it's just a standard fit vauxhall, will have a look at the bonnet switch too as I saw that mentioned.

 

Why do you say it's def not the battery? Saw that explanation on several vx sites...

 

 

sorry mate. missread the first post. thought it said something else :headvswal . the siren batteries are quite easy to replace on most. all depends on if they have security screws. start with the easiest, bonnet switch & ultrasonics if fitted.

no problem - I'm hoping it is something easy... really don't want to run the risk of fookin it up completely, as it's sod's law it'll be the type with security screws!!

Give me a bell Rich, i`m in Chester and fit alarms, may be able to help.

 

Bob 0800 5422875