avital autostart 4103

I have an Avital Autostart(4103????). The on-board relay for the door lock/unlock does NOT work anymore. I was told I need a new alarm brain. The alarm is about a year and half old only. Everything else works properly so I was wondering cant I just use a relay and the neg output of the alarm to lock and unlock my doors? If so, what do I need to do and get? Any help is greatly appreciated. TIA.

do the negitive outputs still work off the alarm ?   i dont recall the 4103 have onboard relays for locks   its has flip flop outputsIf i Can't Install it    I Don't need it   Joe

As far as I know the negative output still works. I believe I have the 4103 (not sure though) but I am sure that its an Avistart. I know it has the lock/unlock connected to 2 wire that plugs into the brain. I am assuming it has a built in relay but not sure.

yea the 2 wires blue and green are flip flop lock wires   no built it relays   test the 2 wire with a dmmIf i Can't Install it    I Don't need it   Joe

chev104275 wrote: flip flop lock wires...   test the 2 wire with a dmm

Not sure what flip flop wires means and what am I looking for when I test it with a meter???? sorry newbie here.

sorry i was wrong i grabbed the install manual this morning for the 4103 and it just has negitive outputs on it     put your red meter lead on 12v and your black lead on one of the wires green or blue and hit the lock button if your meter reads 12 volts then its working then test the other oneIf i Can't Install it    I Don't need it   Joe

Can I use the 451M? Also can I plug that in to the brain itslf or do I have to use the negative output? My apologies for all the questions.

chev104275 wrote: sorry i was wrong i grabbed the install manual this morning for the 4103 and it just has negitive outputs on it     put your red meter lead on 12v and your black lead on one of the wires green or blue and hit the lock button if your meter reads 12 volts then its working then test the other one

I finally got to test it and this is what I found. Hopefully this will make sense to you. Blue wire - nothing pressed = 1DC Blue wire - lock button = 1DC Blue wire - unlock button = 12DC Green wire - nothing pressed = 3DC Green wire - lock button = 2DC Green wire - unlock button = 1DC So what do you think? If I do use the 451M how do I use it and where to I connect it to? Again my apologies for the noob questions.

Your lock circuit isn't working.  Plugging in a 451 would make no difference assuming the orange armed output works, test it as above, leave your blue unlock wire as before, then plug a 528t timer relay on to the Orange from alarm and set it to 1 sec. That will sort your problem. Of course the best answer is a warantee repair/exchange. What make, year and model is your vehicle, it might have some bearing on why the lock circuit failed and avoiding this problem in future, also, to see if I'm right try locking your doors manually,  arming then dis-arming the Avital. This would show if I was right. The alternative to a 528t would be if you can do this.... take an aux output and programme it to work on arm, timed for 1 sec. Use that as the lock output.