Car Alarms: lock/ unlock /trunk release, double pulse, audi a6


Question
QUESTION: i have been working recently in a AUDI A6 YEAR 2000 i DID a REMOTE STARTER on this vehicle.  my problem is the door locks is not working properly .i have installed a avital 4100 form directed  so the drivers door unlocks fine in the first push of the botton but the other doors do not respond?i know this car needs a double pulse but still its not working only the front drivers door nothing else,and the trunk release looks like it works with positive  pulse  my output is negative so do i need a relay?thanks  for all the help.
ANSWER: You have to program the 4100 for double pulse, the 4100 does not have a dedicated unlock button, it rotates using the same button for lock and unlock.  Look at page 30 of the manual, and change option 15, this will send 2 pulses to unlock when unlocking.

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QUESTION: im sorry but i will ask again about trunk release its nescessary a relay?the output from remote starter is a negative wire on this  car the trunk release is negative too so what you  think?

Answer
Your trunk release is a positive trigger.  Your system only puts out a negative, you need to change that negative output to a positive so you definitely need a relay.  Here is a diagram on how to wire it:

http://www.the12volt.com/relays/page1.asp#n2p