Alarm HONDA CIVIC MK8 2008 - Immobiliser Set off : Used Key with Dead Battery - Civinfo
 
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post #1 of 2 (permalink) Old 30th July 2019, 15:13 Thread Starter
 
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Exclamation HONDA CIVIC MK8 2008 - Immobiliser Set off : Used Key with Dead Battery

Hello all,

Would really appreciate if i could be helped with this.

Recently I ended up using my duplicate key to open my car lock, and as the battery was dead. I did it manually (i.e. the driver door unlock).

The moment I did this, the alarms went off, and it went on for 10 - 15 minutes, before the battery died out.

I charged my battery, and tried connecting it, thinking the immobiliser would have reset itself, but the moment I try to connect the battery terminals, the alarm seems to be going off again.

Kindly help, as I am kind of lost as to how do I go about it. I did my bit of research as to how do I reset the immobiliser, but the horn itself, doesn't allow you to work on resetting it, as it is loud, and keeps on going forever.

Kindly Help. Thank you aagain
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post #2 of 2 (permalink) Old 4th August 2019, 11:53
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the alarm module has it's own battery pack and is located in the boot, a quick search of the forums will show you where it is and describe problems others have had with the alarm.

using the key does not deactivate the alarm this can only really be done with the key fob but i think your problem is letting the alarm backup battery go flat, the age of these cars and of course the alarm battery pack which is rechargeable it has either not had time to recharge or has not recovered.
quite a few who has had a similar problem has deactivated the alarm by unplugging the bonnet catch switch and shorting the 2 pins out on the connector fooling the car into thinking the bonnet is up which stops the alarm from arming but allows you to lock the car via the remote fob.

it seems once the alarm backup battery fails it sets the alarm off
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  Civinfo > 8th Generation Euro Honda Civic (2006 - 2011) > Electronics (8G)

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honda civic 2006 , immobiliser , key fob

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