I have a 2007 Versa S with the power package installed but without any alarm system. The Viper 5002 system is basically the same as the viper 5900 (791vx) except without the remote start (driving manual so that would not be a good idea).

I have read up on installing alarm systems and know mostly what I'm doing. I just have a few questions. First of all, I saw that many of the wires found in the driver/passenger kick panels went back to the BCM module (wiring info gotten from this thread: http://forums.nicoclub.com/zerothread?id=261082 ). Would it be fine to splice into the wires at this location? I was originally going to install the brain under my headunit under the center panels but found that it would be better to mount the brain above the glove box right near the BCM.

I also had a question about the doors. I believe that the system is the same as what is described on this page: http://www.the12volt.com/doorlocks/doorlocks.asp (Single Wire System).

Finally, how does the alarm work with the current installed module? I know there is an output which disables the factory car alarm, but I don't have a car alarm. Though, the panic button on the car fob acts like a car alarm. Do I just have the splice into the existing wire for the new car alarm and not have to worry about the existing system in place?

You do not have the single wire door locks. You have a seperate wire for lock and unlock. They are a negative trigger, so you dont even have to use the relay pack that comes with the viper systems. You can run a straight negative trigger off the main module. On most viper systems, its a 3 wire harness, sometimes with a plug on both ends. If this is the case, cut off the plug that fits into the Relay pack, and use those 2 wires. Its a Blue/Red/Green harness. The Red is not used. Some of the systems comes with an extra harness, so you dont have to cut off the plug for the relay pack. If it comes with a extra harness, it will only be a small 2 wire harness with only a Blue and Green wire, the red will not be on it. If it has the 2 wire harness, just use that.

If you dont have a factory alarm, you shouldn't have to worry about the factory alarm-disarm wire. I wouldn't worry about.

The panic button on the Viper system is 100% aftermarket. If you feel you are endanger, hit that button for a couple seconds, and the siren on the viper system will start to go off.

Quote, originally posted by Kolk1 »

12volts blue (40A) + ignition harness Starter white + ignition harness Ignition red + ignition harness Accessory yellow + ignition harness Second Accessory brown + ignition harness Power Lock gray - dr kick or BCM, pin 45, wht 15P plug Notes: The BCM (Body Control Module) is behind the glove box. Power Unlock purple to blue - dr kick or BCM, pin 46, wht 15P plug Notes: The BCM (Body Control Module) is behind the glove box. Parking Lights+ gray + driver kick, harness to rear Notes: Can also use pink to purple (+) in the passenger kick, harness to the rear. Dome Supervision brown - BCM, pin 63, black 15 pin plug Notes: The BCM (Body Control Module) is behind the glove box. Trunk/Hatch Release blue to purple - pa kick or BCM, pin 30, wht 40P plug Notes: Meter this wire while opening the hatch from the handle on the rear hatch. Tachometer blue ac ECM, gray 32 pin plug, pin 13 Notes: The ECM (Engine Control Module) is on the driver side strut tower. Can also go to any fuel injector and use the wire that is NOT lt. blue. Brake Wire red + brake pedal switch or either kick

I now understand how the door locking/unlocking works. The system is what is described in this booklet as the three wire ground pulse, with one wire for ground continually, one - for lock, and one - for unlock. The way the alarm is set up, there are two relays built into the brain for lock/unlock, but it is used as you said. Both 87's are hooked to the chassis, one 30 goes to lock and the other 30 goes to unlock. 87a is not used for both.

I just have a few more questions. There is a wire for the door trigger input. There are two wires, but I believe I need to use the (-) input. What do I do with this wire? There is also a second unlock ouput (200mA) for progressive locks where the driver unlocks first and then the second press unlocks the rest of the doors (how it is configured in the car currently). What do I do with this wire?

On the 2nd harness, there is a retained accessory output, which is connected to the accessory wire. What does this do exactly and the booklet states that additional relays are required for most applications.

Sorry for asking so many questions, but I like to know exactly what I'm doing before cutting up my car.

On the door trigger input(-), thats what sets off your alarm if any of your doors are opened. Normally, I hook that up to the Dome light, since when any door is open, the dome light comes on, thus if your alarm is turned on, and your dome light comes on, it triggers the alarm.

As for the Door locks, I have never bothered to set up a 2nd pulse unlock feature. I always set it up so all doors unlock on the first pulse. Therefore, I never use the 2nd unlock output wire.

That accessory pack, may be for additional outputs, like a channel 3 and 4 and so on, im sorry but Im not familiar with accessory pack you're talking about. Im new to Viper, so ive only done a couple of the 771s and 791s, I come from a background of Autopage. I also really suck at explaining things, and talking to somebody about something I cant see.

I try to help out as much as I can on a forum, but Id rather just drive to somebodys house and fix it in person. lol

And it would be fine just to use the dome light wire for the door trigger input? I guess that would also control the trunk being opened too.

Every system I do, normally includes, Constant, Ign, Acc, starter, possibly a Ign 2 and Acc 2. I know what every wire operates in the car, but im not 100% sure, which wire the Viper system checks for certain operations.

I kinda have the mentality of, its right there in the Ign harness with the other wires your hooking up, might as well hook it up too. lol.

Yes, if the hatch being opened triggers the dome light, then it would also set off the alarm.

I havent done my Versa yet, but Ive looked over the chart to see how difficult it was. By looking at the chart, to me it looks simple, but sometimes things change when you get inside.

Always be sure to test every wire, Dont take my word, or anybody else's. Yes, I will try to help if I can, but remember, some cars may have 10 different Blk with red strip wires. Its up to you to test to make sure you have each wire correctly hooked up.

I'll probably install this over the weekend. Will post pictures if anyone is interested in seeing them.

Did a 5900 on a 98 Suburban. lol

Regards,
Dave