Aftermarket Alarm Features with Factory "Alarm"??
 

Is there anyway to integrate some aftermarket alarm features into the factory alarm? Basically, something like a glass break sensor and motion sensor is what I'm looking for. I'm wanting to stop the window breaking and stereo theft more than the actual car theft.

If I get an aftermarket alarm, I would have to use both FOBs, right? Ideally, I want to continue to use my factory FOB to lock/unlock (being able to keep it in my pocket) while that also activates the motion sensor/glass break sensor.

If there is no way to do the above, how would a full aftermarket alarm work with the intelligent key? I would have to keep the intelli key in my pocket at all times, but would lock/unlock/arm alarm with the new FOB from the alarm system? If I unlocked the car with the button on the door, would that also disarm the alarm?

Any help on this is appreciated. Thanks.

Thats the same issue im having now. Alot of places dont have the wiring harness for either a aftermarket alarm or auto starter. From what i been told is you have to replace the alarm with a full aftermarket alarm...im going to use Viper 2 for my example because thats the alarm i had on my old car.

Like you already figured, if you have a aftermarket alarm that will control the alarm, lock,unlock and trunk. However you still need your factory FOB to start the car. I'm pretty sure your factory fob can still lock/unlock the car but it wont turn your alarm on/off. So in other words you will need both the aftermarket fob and your factory fob with you.

And I'm guessing when you press the door button to unlock the car, the alarm will still be active, so you will have to press the alarm remote as well? That sucks! Anyone have better news!?

In for updates.

I'll be installing a full 2 way remote start alarm on my Z within the next month or two. I've already done some research involving the factory alarm arm/disarm function as well as the CAN-Bus interface. It looks like it won't be too difficult, but I'm unsure how the factory door handle arming will end up working out. I'll have a front and rear shock sensor, (2) vertical motion (jacking) sensors, a back up battery, and a glass break. I'll be doing a complete write up on the process.

Pertaining to the motion sensor... don't do it unless you have a convertible or jeep. They false very easily due to the metal in your car. Unfortunately your only realistic and reliable detection will be the glass break, door sensors, and shock sensor.

Typically the alarm will have a pulse to arm or disarm the factory alarm. Also, remote start systems have outputs to disable the factory alarm before remote starting so as to not make the car think it's being stolen. The CAN-Bus interface talks directly to the car and makes it think the Fob is in the under-dash port so it will start without you there. Being that it doesn't use a prox technology noone should be able to come up and unlock the doors while it's started. Now that I think about it the factory disarm will probably unlock the doors so a secondary pulse would need to be sent to lock the doors after the factory alarm is disarmed. Easy to do.

might be easy to do but are these "pulses" on the same freq.

Yours is definitely more complicated than i'm looking for. Ideally, I want to just add a glass break and vertical motion sensor to the factory alarm. Is that impossible? I don't want 2 FOBs (car and alarm) to have to carry and use.

By "pulse" I mean a hardwired ground or positive voltage wire tapped into the BCM or otherwise, not wireless.

Theoretically it is possible, but may require wiring into a door trigger to notice the factory "alarm." Not the most ideal solution, but it's not like the factory system is going to have inputs for aftermarket sensors.

Car Alarm Glass Sensor By Asianwolf Vehicle Security Manufacturer

Would that work? Seems simple. The only thing it seems to figure out is where to put the blue wire (negative sensor input of alarm). Surely that could be tapped from the factory wire...??

I was able to add that capability by upgrading the factory KARR alarm when I purchased from dealer. It added the ability to detect window be broken so it is possible if this is what you are looking for. My give your dealer a call.

Dealer said there is nothing from Nissan - yours must be an aftermarket thing the dealer installed. Do you have a separate Key FOB for your alarm or is the arm/disarm all done through the Nissan intellikey?

No seperate FOB for alarm, just the standard FOB for starting.

This is something I've been wondering too.

Check out this post on a Maxima forum. This would be ideal. The only thing to figure out would be the wiring for the alarm trigger. Other wires for ACC, Constant, and Ground would be easy. Anyone who can easily read through the service manual know which wire we could tap to use for the alarm trigger???

6th Generation Nissan Maxima Community :: View topic - Adding shock and tilt sensors on to 07-08 factory alarm

Trunk/Hatch Pin - red or orange - negative polarity - BCM, gray 40 pin plug, pin 35

Hood Pin - lt. green - negative polarity - hood switch or IPDM E/R, white 16 pin plug, pin
14

(me loves the +rep) ;)

to make things easy, here's the other wires also found at the BCM:

12 Volts - white (40A) - positive polarity - BCM, black 3 pin plug, pin 1

Accessory - orange - positive low current - BCM, black 40 pin plug, pin 31

Make sure to fuse all taps into power with an appropriate fuse size (probably 5A or 7.5A).

Awesome. Thanks for all the info!

I'm sorry for the dumb question but what does BCM stand for and where is it located?

Wouldn't it be easier to tap at the fusebox near the driver footwell with a fuse tap?

I'm a little confused with the trunk hatch pin or hood pin. I tap one or the other, correct, not both...correct? I'm guessing this is the best way to tell the sensors the factory alarm is active or not active? Seems like a strange way (tapping the trunk or hood wires) to tell if the alarm is active. Any info is appreciated.

The BCM is the Body Control Module, most commonly referred to as your Computer. Most cars now have a BCM and an ECM (engine.) I belive the BCM is located in the passenger kick panel in the Z.

You can tap into either one of the hood or hatch pin wires, but definitely do not tie them together. I would recommend the hood, as it is the most difficult to open without actually already being in the car. Also, isolate the glass break and vertical motion sensors using diodes just to be safe.

Tapping into the wire is to tell the car that the sensor has gone off. The Accessory input into the relay deactivates the sensors while the car is on, and the Timer holds the latch long enough for the car to start without causing issues. (While starting, most cars typically interrupt power on the Accessory leads.)

Looks like the Hood Pin found in the IPDM is in the Engine Bay; probably not the easiest to get to for most people.

http://www.the370z.com/members/vipor...-ipdm-hood.jpg

Here's the locations of the 12+, Accessory, and Trunk Pin all found at the BCM

http://www.the370z.com/members/vipor...34-bcm-12v.jpg
http://www.the370z.com/members/vipor...35-bcm-acc.jpg
http://www.the370z.com/members/vipor...-bcm-trunk.jpg

Disclaimer: IF YOU SCREW YOUR CAR UP IT'S NOT MY FAULT!

(+rep plz)

I really appreciate all your help with this. The ultimate question - do you think it will work? I also want to add a glass break sensor, so that will be 1) glass break, 2) shock sensor, 3) tilt sensor. Wiring seems easy enough.

Thanks again for all the help.

I do think it will work, so long as the factory "alarm" is designed to go off when the hatch is opened. The wiring diagram pertaining to the Maxima looks fairly correct, although I haven't looked over the whole thing.

All the sensors do is send a negative pulse when they detect something. So all you're doing is providing them with power while the car is not on, and tapping their negative output into the car's negative input for the hatch. There's nothing weird or computer-like to it.

Shock sensors are typically a 4-wire hookup, and I can't remember what the fourth wire is. I'll look into it if I get some time.

Got everything and i'm ready to start the install soon. I'm sure it matters where the sensors are mounted (shock, tilt and glass break) so are there any suggestions on location? Behind the HVAC controls, behind the seats, in the rear trunk area where some people put their amps? Any suggestions on best location?

I'm guessing the glass break needs to be up front so it can hear the glass breaking sound. Is that true? Will it work under the dash or something?

Thanks.

Wheels stolen, Factory Alarm Impact Sensor
 

Did you find an Accessory to the Factory installed alarm? I just had my wheel stolen 2 weeks ago and Nissan USA does not make an Impact or Tilt Sensor for my 2009 370Z

how'd the install go?

I did this a while back so I might not remember some of the detail but following the instructions posted works great. I went with a tilt sensor, shock sensor and glass break. Every so often, I think it is the glass break that triggers a false alarm (I have it set sensitive) when I first get out of the car and I'm walking to where ever I'm at. Other than that, no problems at all. Not a difficult install - if you can do a radio, this is similar. Good luck with it.

do u still get to use the orignal keyfob?

Yes - when one of the added sensors (tilt, shock, glass break) are set off, it activates the stock alarm.

There is no aftermarket alarm (only aftermarket components to the factory alarm) and hence factory key fob.

is there a link to the info? can u still use the door switch
?

There is a link to the setup earlier in the thread. It is from a Maxima forum. I think you probably have to register there as well. However, that is what I followed. Works the same in our cars.

And yes, the button on the door still works.

thanks for the information and links guys. just ordered some sensors!

heres the diagram from the maxima forum so you dont have to register. basically, all you need is to buy a simple relay from kragen/autozone and tap the wires that vipor provided above from the BCM

http://img651.imageshack.us/img651/6121/alarm2.jpg

If I wire an extra siren to the factory alarm will it make a continuous sound or will it pulse like the factory horn?? How do I wire it so it would make a continuous sound?

Just had an alarm fitted it has a glass break sensor also a perimeter detection so if anyone just looks in the car it gives a warning beep. If someone tries to break in it also sends me a warning text to my mobile phone or if anyone bangs the car it also sends me an alarm activation warning on my mobile. It works with a sim card fitted in the alarm so i can also track wherever the car is. The alarm make is a Toad.

Brian

:tiphat:

So I can purchase these 3 sensors you have listed and have a professional install it on my factory alarm correct?

yep...although you could always do it yourself. its pretty simple with the diagrams/pictures posted above. the sensors really just send a pulse telling the stock alarm that one of the doors was opened (which triggers the stock alarm).

and the door button disables it?

correct you are. the relay in the picture that i snipped from the maxima forum above does most of it: