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Disarm car alarm

Tiny
NKIANKHOOY
  • MEMBER
  • 2005 NISSAN ALTIMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 115,000 MILES
Hello,

I had an alarm installed through the dealer when I purchased my 2005 Nissan Altima. I stopped using the alarm about a year ago, therefore do not keep the remote with me to disarm. Well, I replaced my battery last night and of course the alarm is now going off and I an unable to disarm it because I cant find the remote. I have read that there might be a "kill switch" underneath the dashboard. There is a black button under the dash, drivers side which I have no idea what it does, so I'm thinking this might be the answer? If so, what are the steps to disarm? Any assistance would be greatly appreciated!
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Monday, January 11th, 2010 AT 6:39 AM

17 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi Nkiankhooy,

If this is an aftermarket alarm you will need to remove it there might not be a switch to bypass it. If it is a factory alarm let try to reset it by following this guide.

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.
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Monday, January 11th, 2010 AT 11:49 AM
Tiny
NKIANKHOOY
  • MEMBER
  • 2 POSTS
I believe the button is the "kill switch". So if the alarm is going off, I can do as you said and it will temporarily disable correct?
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Monday, January 11th, 2010 AT 11:55 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The kill switch is not to disable the alarm but only to disarm it. Any disconnection of the power source would rearm the alarm once again.

Yes, when the alarm has been triggered due to reconnecting the battery, the procedures that I mentioned would disarm it.
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Monday, January 11th, 2010 AT 1:17 PM
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 2005 NISSAN ALTIMA
  • 125,000 MILES
I was wanting to find the turn off switch on my Nissan to disarm it but not for good, how would I go about doing this? Oh, I guess I should say its for the car alarm, if you could help me out it would be greatly appreciated
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Factory alarm has no kill switch. Is it aftermarket?

Roy
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
KAYJOE
  • MEMBER
  • 1 POST
  • 2002 NISSAN ALTIMA
  • 135,000 MILES
Alarm goes off while parked in garage. Disconnected horn relay since it also happened during the day. Obviously, meant I would have to drive without horn. Could not locate relay for anti theft. Where is it located.
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You may have disconnected the horn but the security system would still be triggerred and this can drain the battery.

Check door switches and hood switch. One could be out of adjustment.
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
FREDDYG123
  • MEMBER
  • 3 POSTS
  • 1996 NISSAN ALTIMA
  • 111,000 MILES
My car starts but the flashing lights from the alarm blinkers license plate lights tail lights continue to stay on and flash so what I want to do is totally shut off the alarm system how do or can I do this?
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I could not find any information on disabling the system. Is it factory or after market system?
Are any door ajar indicator lights showing? Do the horn/alarm siren works when security system is triggerred?
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
FREDDYG123
  • MEMBER
  • 3 POSTS
It's a factory system the door indicator lights are not on and the horn and/alarm siren does not go sound at any time
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Try disconnecting the alarm control module to test if it works.
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
FREDDYG123
  • MEMBER
  • 3 POSTS
Ok can you tell me where the alarm control module is located?
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Behind the left kick panel
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
LOCOSOLDADO
  • MEMBER
  • 1 POST
  • 1998 NISSAN ALTIMA
When changing the ignition switch on an altima do I need to reset the security?
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
If the vehicle has a factory alarm and a chip in the key, yes, the system needs reset.
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
NBAOTOEB
  • MEMBER
  • 1 POST
  • 2005 NISSAN ALTIMA
  • 6 CYL
  • FWD
  • MANUAL
  • 38,000 MILES
My alarm on my car stopped working. When I lock my car the horn no longer beeps and just my lights flash. But if I hit the alarm button on my keyless entry it will sound. Also if I dont lock my car the car will lock itself and when it does so the alarm will enable.
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi nbaotoeb,

Thank you for the donation.

Seems the alarm and horn reminder mode has been switch to hazard flashes only without the horns working.

Try this and see if it works.

Press both the lock and unlock button simultaneously for more than 2 seconds and see if the system is switched back.
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Sunday, January 13th, 2019 AT 11:40 AM (Merged)

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