In a VN S1 with factory central locking and factory power windows is the triggering positive or negative?
I am presently installing a car alarm + auto power window closer in my VN S1 Berlina.
I need to know the following:
- Wether the central locking is positively triggered or negatively triggered.
- Wether the door open sensors (the switches that tell the interior light to turn on and let the car know a door is open, you know what I mean) are positively triggered or negatively triggered.
- Wether the power windows are positively triggered or negatively triggered/operated (the current coming from the master switch bank thing).
i have a wiring diagram for installing a car alarm central locking system at home.
the doors are negative switched. if you find them to be possitive you can reverse it with a relay.
i would guess windows are positive trigger.
what type of alarm is it? and how does it have built in relays for multiple central locking system? like 5 or 6 wires
now i'm not auto electrical minded,but i had a door handle(front drivers side) to replace on my calais,now whilst manouviring my hand around inside the door,i was wondering why the doors kept locking,it intrigued me,so i looked around,what i found was,when the ...bugga...lol,i don't know what you call it,when it touched metal,it activated central door locking (locking doors)
Most switches have a positive feed but are triggered when they are grounded. With the exception of lights. The installation instructions that came with the kit should tell you which wires to splice into.
here is the diagram for my AVS Car Alarm. the wiring should be similar depending on your alarm type.
Manual diagram
One i made
i think the factory colour wires are: Black \ Red = Unlock, Black \ Yellow = Lock
you can test using a multimeter. probe a wire and press the button down on the door and if it goes +12v then thats the lock wire.
there is a cluster of wires for central locking a total of 5. 2 are for locking and unlocking, 2 send lock or unlock to slave actuators( passenger side, rear doors ect) and the final one is earth.
you can find the plug for the locking behind the drivers side air duct thing, remove the duct and its a black plug.
also power windows and central locking arent negative switched.
negative switched is when the door is open the voltage goes 0v and when you close the door the voltage goes +12v, to test this get a multimeter \ test light, remove the screw holding the switch in the frame and remove the switch, touch the (+) side of the meter to the (+) of the switch then touch the chassis of the car. see what happens when you push the button in. note close all doors except the one your testing in.
Last edited by Anthraxnz; 30-04-2007 at 09:53 PM.
Ok, awesome. The kit has different instructions and jumper settings for negative vs positive switching and so on. Figured it was better to check beforehand rather then risk shorting something if I messed up while testing![]()
It won't short anything, it just won't do what it's supposed to do when the button is pressed. If it is negatively switched and you wire it like a positive it won't work at all because the switch is already grounded, the other way it will activate the instant you connect the wiring.
The way to tell is get a test light and probe the power wire on the window side of the switch and see what it does when you press the down or up button. If the light is off and it comes on, then it is positively switched, if the window moves when you probe the wire then it is negative. If the globe in the test lamp is a low amp it won't move the window, it will be on whether the button is pressed or not. (I'm pretty sure thats how it works, someone feel free to correct me if I'm wrong.)
if you want to post the image of the central locking diagram ill help you through it.
if you dont have a scanner just use the digital camera![]()