90 civic , viper 3105 key less

I have a 1990 Honda Civic Ex with factory door locks I ordered the Viper 3105v alarm (old packaging if that matters) my question is how can I wire up my key less entry to my factory door locks? Will I need a relay(s) or someone mentioned DEI 451M MICRO DOOR LOCK RELAY MODULE? Sorry i'm new to all this I have only done one alarm in my life the Scytek Astra 777 in a 1991 Honda with no factory door locks I didn't do the key less just the alarm I couldn't figure out how to wire up the relays for the actuators.

Power Lock      GREEN / WHITE       -      in drivers door        Power Unlock    GREEN/ red       -      in drivers door I don't have a manual for that system but there will be 2 wires coming from the viper that are labeled locks. I would have to guess a green for negitive lock and blue for negitive unlock. Some of the older vipers had what is called flip flop circuits meaning the locks wires could do either positive or negative you will have to read the manual to confirm. If it has flip flop then you will need 2 diodes for the locks as well. You will need to run the wires into the drivers door the integrate with your factory wiring. you may be able to catch the wires going into the door from inside the car have to test to confirm. If i Can't Install it    I Don't need it   Joe

Thanks for the help, I found the manual online http://pdf.ampire.de/viper/N3105V_2008-12_web.pdf will that help in telling me if its negative positive or flip flop? So I wont need to use relays or the DEI 451M MICRO DOOR LOCK RELAY MODULE? Thanks again

According to that Viper 350 Install guide, it has the older style push-pull or flip-flop door lock outputs. While you won't need a DEI 451M door lock module, you should add an inline 1N4004 diode to each output wire as follows : Viper Diode  Civic H2/A Green 1N4004   band towards Viper        Power Lock        GREEN / WHITE (-)        in drivers door H2/C Blue  1N4004   band towards Viper        Power Unlock     GREEN/ red (-) in drivers doorSoldering is fun!

thanks kreg357 what exactly do diodes do i'm looking at them on radio shack's website right now? I've only seen them like once. I've installed something similar to some tweeters in my brothers sound system they where caps tho I forgot ow big we got them I saved a couple we used them to block out the bass from the tweeter he updated his head unit and the bass was distorting his tweeters on the stock mach 460 speakers

One more question what do you mean by band towards viper ? I'm guessing your talking about the band that on the diode solder that side to the wire coming from the viper? I'll post pictures when I get the alarm in I just ordered it from Amazon i'll post pictures of my install if you guys wanna laugh at my noob skills

With your Civic's lock wires, the car is looking for a (-) pulse to actuate the lock circuit. Your after-market Viper system was built to function in a wide variety of vehicles. The Viper's lock wires outputs a (-) pulse followed by a (+) pulse when the button is pressed. The diode blocks that un-necessary (+) pulse from getting to the car and confusing it. As far as the reference to the diodes band marking, take a look at the "Diodes" section found by clicking on that in the blue banner section a the top of this page. It will provide pictures of the diodes and the electrical / logic function they perform.Soldering is fun!

kreg357 wrote: With your Civic's lock wires, the car is looking for a (-) pulse to actuate the lock circuit. Your after-market Viper system was built to function in a wide variety of vehicles. The Viper's lock wires outputs a (-) pulse followed by a (+) pulse when the button is pressed. The diode blocks that un-necessary (+) pulse from getting to the car and confusing it. As far as the reference to the diodes band marking, take a look at the "Diodes" section found by clicking on that in the blue banner section a the top of this page. It will provide pictures of the diodes and the electrical / logic function they perform.

Wow this site is awesome! I'm actually learning something off this place and people are actually helpful on here not like other websites I have been on. Okay so a Diode has (cathode side stripe) (and a anode side no stripe), if I put negative current to the cathode side i'll get a negative current on the anode side. If I put positive current on the cathode side there will be no positive current on the anode side. So in order for me to block the positive current coming from the alarm I need to wire up my Diode with the cathode side connected to the wire that comes from the alarm right?

My Alarm came in! I ordered an older model and they sent me a newer one [/IMG]

Good deal! Check the Install guide. If the Door Lock and Unlock wires are strictly (-) outputs, no diodes are needed.Soldering is fun!