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New Siren Install on Viper 480XV


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adeel_ssj4 
Member - Posts: 2
Member spacespace
Joined: March 06, 2020
Location: United Kingdom
Posted: March 06, 2020 at 1:31 PM / IP Logged Link to Post Post Reply Quote adeel_ssj4
Hi guys
Found this forum after much googling so hopefully someone can help!
I have a viper 480XV installed to my car right now, however the siren has died so i bought a new one off of amazon. The new one has 4 wires coming out of the back
Red - positive
Black - negative
Blue - negative trigger to alarm
white - positive trigger to alarm
the vipers loom i cut only has three wires which i assume are
red - positive
black - negative
orange - ????
When i connect the white to the orange the alarm goes off constantly, the instructions for the new siren say just to tape up the blue wire so i did that, am i missing a trick with the viper alarm? I've armed and disarmed from the fob but it made no difference and on the back of the siren is a key you can turn to on and off position which makes no difference when wired up
I've checked the viper alarm manual and it didn't help for this model
kreg357 
Platinum - Posts: 7,781
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 30, 2009
Location: Pennsylvania, United States
Posted: March 06, 2020 at 3:08 PM / IP Logged Link to Post Post Reply Quote kreg357
Looks like the replacement siren needs a connection to +12V Constant (Red ) and Chassis Ground ( Black ).
It can be triggered with either a (+) or (-) signal input. The Viper system only has a (-) Horn Output. That is the
Brown wire at H1/8. This is the wire you should connect to the sirens Blue wire. The sirens White wire is not used
in your situation. If there is any documention with the siren, verify that the Blue wire does not draw more than
200mA current. If it does, you will need a relay to control the siren and protect the Viper.
Additionally you should program the Viper for a continous Horn output. See Menu 3 Feature 1 to Option 2.
Soldering is fun!
adeel_ssj4 
Member - Posts: 2
Member spacespace
Joined: March 06, 2020
Location: United Kingdom
Posted: March 06, 2020 at 3:58 PM / IP Logged Link to Post Post Reply Quote adeel_ssj4
Hey Kreg
Thanks for the reply i'll give this a shot tomorrow!
I noticed another issue with my car today (i haven't driven it its been parked in my garage for a few months due to bad weather) with the battery disconnected
For some reason i need to press the unlock button again after disarming it (before the auto immobilise function begins) to get the car to start, hopefully this sequence explains it better
Sit inside car
press unlock to disarm alarm
key into ignition to start the car
turn
nothing
press unlock
turn
car fires up
Did i accidently enable a menu or something? It didn't do this before
kreg357 
Platinum - Posts: 7,781
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 30, 2009
Location: Pennsylvania, United States
Posted: March 06, 2020 at 4:44 PM / IP Logged Link to Post Post Reply Quote kreg357
Not sure about that issue. I'm not a Viper Alarm system guy.
But check programming on Menu 2 Feature 14. That could be your problem.
Here is a link to the Install Guide if you don't have one handy :
    https://www.the12volt.com/installbay/file.asp?ID=1292
Soldering is fun!

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