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Alarm siren buggered

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Old May 27th, 2020, 12:46   #1
robsterpaterson
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Default Alarm siren buggered

Hi all. How much of a ball-ache is it to disconnect the alarm? My '11 plate D5 has been randomly going off now & again so I need to get around to stripping it out to see if I just need to change the battery, or if it's too late and is properly dead.
What kind of access/complexity am I facing? Thanks in advance.
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Old May 27th, 2020, 13:37   #2
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Originally Posted by robsterpaterson View Post
Hi all. How much of a ball-ache is it to disconnect the alarm? My '11 plate D5 has been randomly going off now & again so I need to get around to stripping it out to see if I just need to change the battery, or if it's too late and is properly dead.
What kind of access/complexity am I facing? Thanks in advance.
There is no "ALARM" as such it uses components already on the car , if it keeps going off its one of the Radio frequency motion senors , either the front one or the rear one .. You need to get the codes read to determine what is setting off the alarm .
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Old May 27th, 2020, 14:45   #3
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^^^^^ That...

If you simply remove the siren you will then get a permanent error message on the dash.
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Old May 27th, 2020, 15:54   #4
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^^^^^ That...

If you simply remove the siren you will then get a permanent error message on the dash.
90% chance it is the rear one in my experience 👍🏻
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Old May 27th, 2020, 20:57   #5
Father Ted
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Reason for my false alarms was the siren. Due to battery corrosion the siren was damaged and kept "dropping" off the system, resulting in a false alarm.

You need to use VIDA to determine the actual cause. If it is the battery, the sooner you remove it and address the damage, the better the chance of saving the board.
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Old May 27th, 2020, 23:25   #6
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Thanks folks. I was hoping it was merely a case of isolating the module - who pays attention to car alarms these days anyway.
I'll try deactivating the internal sensor(s) using the button on the console to clarify if its a sensor or leaking battery issue, in the meantime I'll also ask around for VIDA access around South Ayrshire...
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Old May 28th, 2020, 09:55   #7
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Originally Posted by robsterpaterson View Post
Thanks folks. I was hoping it was merely a case of isolating the module - who pays attention to car alarms these days anyway.
I'll try deactivating the internal sensor(s) using the button on the console to clarify if its a sensor or leaking battery issue, in the meantime I'll also ask around for VIDA access around South Ayrshire...
You can isolate the module itself, but you'll need to pull out the wheel arch on the drivers side. Inside the wing tucked away is the actual alarm siren.
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Old May 28th, 2020, 14:50   #8
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Originally Posted by robsterpaterson View Post
Thanks folks. I was hoping it was merely a case of isolating the module - who pays attention to car alarms these days anyway.
I'll try deactivating the internal sensor(s) using the button on the console to clarify if its a sensor or leaking battery issue, in the meantime I'll also ask around for VIDA access around South Ayrshire...
well the answer is you and you only , It might frighten away the casual thief .
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Old May 28th, 2020, 18:14   #9
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Hi, my solution would be replace the module. Not hugely expensive and take no longer than a couple of hours. The Volvo kit includes instructions, new rivets and security screws.

To me well wort the investment. And no messages on the dash. It also will not potentially compromise your insurance.

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