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Greg
Greg, Technician
Category: Car
Satisfied Customers: 6997
Experience:  Automotive diagnostic tech
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car alarm goes off all the time

Resolved Question:

car alarm goes off all the time
Submitted: 3 years ago.
Category: Car
Expert:  Shantal-Mod replied 3 years ago.
Hello,

I've been working hard to find a Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.

I wonder whether you're ok with continuing to wait for an answer. If you are, please let me know and I will continue my search. If not, feel free to let me know and I will cancel this question for you.

Thank you,

Shantal
Expert:  Greg replied 3 years ago.
Name isXXXXX goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back,

Hi this is a known problem with the Saab and there could be a few possibility's.

First and foremost is the Hood / bonnet switch that does not close fully
this should be checked first .
Then one of the door switches, but normally you will see a tell tail sign with the door open warning light being on.
Then the boot/ truck light switch, if any of these are open when the car is locked up then the alarm system is going to sound off.
All switches are in the door lock actuators ,

The best way to check this is with a scan tool in active data screen to check for malfunction codes and data to see which system is not closing. there will be error codes to help you find this issue or live data will show you which switch is still open when the car is closed down .

Need further assistance then please get back to me .

My goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back with the reply box below and not the poor or bad service button ,
For further assistance there is no extra charge after accepting.

Rgds Greg
Customer: replied 3 years ago.

it is not anything to do with anyof your suggestions as it goes off when I am driving or when its locked or open

Expert:  Greg replied 3 years ago.
Hi .

Is the Alarm warning RED light ON or flashing when the engine is running .

Do you have also an aftermarket alarm fitted.

Greg
Customer: replied 3 years ago.

no lights on no other alarm fitted

Expert:  Greg replied 3 years ago.
Hi.

Okay you need to be hooked up to the TECH II diagnostic scan tool to check for malfunction codes in the BCM .
This will let you know what has malfunctioned within the system.

If no malfunction codes then check the alarm siren battery, as this is also known to set off when driving, have this checked and replaced if needed..

Rgds Greg
Greg, Technician
Category: Car
Satisfied Customers: 6997
Experience: Automotive diagnostic tech
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