triggering types, 2006 vw polo

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=106594
Printed Date: May 13, 2025 at 4:07 AM

Topic: triggering types, 2006 vw polo

Posted By: saintvice
Subject: triggering types, 2006 vw polo
Date Posted: August 06, 2008 at 7:41 AM

hi,
i have a vw polo 2006. i bought an alarm system that i would like to try and install myself. but a bit confused.

i have diagrams for 4 types of triggering

negative
positive
negative/positive
pneumatic

how do i find out what kind of triggering system i have in my car.

i am a total newbie when it comes to car electricals.

Replies:

Posted By: Big Dog
Date Posted: August 07, 2008 at 1:28 PM

Door and trunk are negative triggers.

-------------
Prepare your future. It wasn't the lack of stones that killed the stone age.

Posted By: saintvice
Date Posted: August 08, 2008 at 3:35 AM

hi,
thanks for the reply.. what makes it a negative or positive trigger? how can i check for the type of trigger?

thanks in advance

Posted By: i am an idiot
Date Posted: August 08, 2008 at 6:42 AM

A negative trigger means that the domelight in your vehicle is supplied a constant voltage. That constant positive voltage goes to the bulb and travels through the bulb to the pinswitch in the door or door jamb of the vehicle. When you open the door that pinswitch travels and the backside of it contacts the body of the car. The body of the car is grounded. When that pin touches ground, the light comes on. This is a negative trigger. Since it takes negative voltage to trigger the domelight and alarm.

Posted By: i am an idiot
Date Posted: August 08, 2008 at 7:51 AM

A positive trigger found on a lot of older Ford vehicles works this way. One side of the bulb was permanently grounded. The other side of the bulb was wired to one terminal of the 2 pin pinswitch. Constant power was attached to the second pin of the switch. When the door was opened and the plunger for the pinswitch came out, it simply connected the 2 pins of the pinswitch together. When the door opened the power pin and the pin going to the domelight were connected together to provide positive voltage to the domelight. Since the positive voltage was applied, this is known as positive trigger.

Posted By: howie ll
Date Posted: August 09, 2008 at 1:50 PM

The guy is talking about his door locks, listen to the old mustard who's the only one of you who's worked these nasty little Spanish built German branded beasties.

Door lock is multiplex, blue white, neg to lock and neg via 1kr to unlock. In the door loom

Under the dash is the body manager with 2/4 doors,+ trunk and hood contacts all neg AND ALL TO BE DIODE BLOCKED 'cause the body manager triggers every hour or so. Getting off the steering column cowling is like making love to a porcupine, the looms are covered with a very nasty, thick fabric cover and the whole job is a back-ache special.

Definately not a DIY job, especially with the questions this guy is asking.

Posted By: Big Dog
Date Posted: August 11, 2008 at 8:35 AM

Thanks for clarifying Howie...."triggering" threw us off although I've never seen pneumatic door pinswitch triggers. DOH! posted_image

-------------
Prepare your future. It wasn't the lack of stones that killed the stone age.