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99 Altima Alarm won't turn off, car won't start Forums > > 99 Altima Alarm won't turn off, car won't start 99 Altima Alarm won't turn off, car won't start
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Old 07-12-2016, 09:20 PM
adntigger710 adntigger710 is offline
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1999 Altima Sedan
 
Join Date: Jul 2016
Posts: 1
Default 99 Altima Alarm won't turn off, car won't start

Hi all,

I'm really hoping someone can help me as we are at a loss, and going through a LOT of personal issues right now (I was just laid off, our home has been deemed unfit and we have to move immediately -- this is 2 major problems of 5.) So, this is obviously the LAST thing we need right now.

We've got a 99 Altima, it's the only car we have for my fiance to get to work and make the little income we've got coming in. Here's the need to know info:

We only have a VALET key. We tried to have a master made, the key code has dropped out of the system. So that's what we're working with (if it matters.)

Many fixes contain a step for locking the car on the driver's side. For some odd reason, ever since this started, we actually CAN'T lock the car with the key -- the key won't actually turn left to lock. It only turns right (unlock.)

I locked the door with the key (no remote entry). When I unlocked it this time, the alarm started to go off. It also disabled the car, so we can't start it either. We've tried the following:

Pulling horn and antitheft fuses etc. Nothing. Put them back. AAA then pulled some cable on the left side of the car so the horn wouldn't be going off but we can still see the lights flashing, knowing the alarm is still activating. This helped as this happened right outside my mother's apt complex full of 800 elderly and disabled people at 9PM (I was mortified to say the least.)

Disconnecting battery, put key in start position, reconnect.

Disconnect battery, take out horn fuse, reconnect.

Disconnect battery, lock doors (done manually as we can't lock with the key anymore) reconnect battery, use key to unlock drivers side door.

Turning key to unlock a couple times, sometimes we held it, etc.

So -- obviously we tried a bunch of solutions we've found online to no avail. The car is fine, we just can't figure out how to turn off the stupid alarm so the car will start again. Any help you can offer is GREATLY appreciated -- we certainly can't afford a mechanic right now, and definitely don't want to spend a ton of money to fix a $800 car...especially when it's just an alarm issue.

Thanks SO much!!!
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Old 07-13-2016, 03:34 PM
bennyb53's Avatar
bennyb53 bennyb53 is offline
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2019 Sentra
2002 Altima
 
Join Date: Jan 2011
Location: Hawaii
Posts: 2,105
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Refer to Electrical Manual for your vehicle. Manuals are in Knowledgebase section at the top menu tab. You will see that front door actuator in key cylinder. The location of the Smart Entrance Control module. I suspect something got disconnected like cable, connecting rod from key cylinder to door lock assembly, or the switch.

You can do inspection by removing the door trim panel and the inner panel where window bracket is mounted. You will have to remove the window. Try search on you tube. Hope this help.
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