2001 Nissan Pathfinder LE/ Alarm issues

[Nissan5]

I know from reading other posts that there are problems with the Pathy's alarm system just going off. Is there a solution to this problem? I already changed the battery in the remote opener and that did not work. Tried locking and unlocking it manually and it will just lock the vehicle, flash the lights and beep the horn all on its own. Its almost like it is possessed!

I can not find a dedicated fuse for this and some say that if you disconnect the alarm system it will disable the vehicle? Any suggestions and or solutions to this?

[Towncivilian]

Welcome to NICO.

Inspect all of the door switches (small rubber covered switches in the door jambs) and the hood switch behind the driver's side headlight assembly. Make sure none are busted; if one is making intermittent contact, that may be tripping up the alarm system.

[Nissan5]

Thanks. I just disconnected the hood switch. I also checked the door switches and they all seem to have spring/resistance in them. Is there any other way I can test them?

If this does not work, is there any easy way to disconnect the alarm system without disabling the vehicle itself? I have read conflicting things on this.

[Nissan5]

OK, disconnecting the hood swithc and it did not work. The door plungers appear to be working fine and could not find a rear hatch switch. Took it to my mechanic today and he could not find the problem.

Has anyone solved or fixed this problem?

[Towncivilian]

I suggest going through the preliminary check described starting on page EL-328 of the factory service manual.

[Nissan5]

OK
Is there anyway to disarm the alarm or pull a fuse without immobolizing the vehicle?

[Towncivilian]

I don't believe so - the system is built in to the smart entrance control unit and without that, the remote unlock/lock feature will not function, among other things (auto lights, windows, etc).

[Nissan5]

Ok the manual you sent was great but unfortunatley did not solve the problem. Took it to my mechanic and he was unable to figure out the problem. Any other suggestions? If its possible, I would like to just disconnect or disable the alarm system all together.

[Nissan5]

Diregard the second question, I did not realise you answered it.

[Towncivilian]

This is strange. Perhaps try reprogramming all of your key fobs in case the system is getting confused somehow? The procedure is described on page EL-309 of the factory service manual. It may help to open up and clean the key fobs thoroughly using isopropyl alcohol (91% preferred) in case something is gumming up some contacts and causing the panic alarm to go off.

I will check for technical service bulletins relating to your issue soon.

EDIT: I found no related TSBs on your issue. The dealer may be the only option in this case if reprogramming and cleaning the key fobs doesn't help - NVIS re-initialization may be necessary. There could also be some electrical gremlin relating to the door switches, too - maybe some frayed wiring that occasionally doesn't make contact, leading the car to think that a door opened briefly? I'm running out of ideas.

[Rocknguitarman]

My 2001 pathfinder that as temps warm up, the alarm goes off. As it gets hot outside the alarm goes off multiple times a day. If not stared & driven the battery will be run down in a week!