Viper 771XV In 2002 Nissan Maxima

try this http://maxima.theowensfamily.com/ 

Here's how (and why) the locks are available only in the door. This applies not only to Nissans, but many other modern cars. -The key cylinder on the outside of the door has three wires going to it. One is a ground feed. The other two wires put out a ground when the key is turned in one direction or the other. -Those two key cylinder wires go to the power window switch. The power window switch also is the driver's door module-----it is basically not only the power window/lock switch, but it is a computer of sorts. The window/lock switch take the signals from the key cylinder wires, and also the signals from the lock/unlock rocker switch on the door, and converts them into data. This data all travels down one wire, into the car, and to the BCM. So basically, the window switch, via data, commands the BCM to operate the doors. Therefore, you will NOT find the regular doorlock wires anywhere inside the car. While the auto manufacturers offer no explanation as to why they do things this way, we can reasonably assume it is either to save weight,, money, or both. --------------------------------------------------- On the Nissan Pathfinder and Infiniti QX4, you can lock or unlock the doors by turning the key in the SUV's tailgate. These wires run straight from the tailage to the BCM; they are NOT on the databus. When we are working on Nissan cars, there is no tailgate of course, but I believe they are using the same (or similar) BCM. When we are adding wires to the empty pins of the BCM, I believe these pins were intended to be for the tailgate key cylinder, and that is probaly why they do not control the windows.