Using a relay to power 2 accessory wires?

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tbone587

Copper - Posts: 167

Joined: January 17, 2005

Location: United States

Posted: November 21, 2005 at 10:13 PM / IP Logged

I am going to be putting in an alarm system with remote start (viper 791xv) in my friend's 1995 Ford Windstar. According to the diagrams I have found, the car has 2 accessory wires which have to be used. Now in the viper install manual it says if 2 accessory wires are need you must use a relay. Can someone draw me out a diagram or explain to me how to use a relay to connect the accessory wire from the alarm to the 2 accessory wires on the car itself. I cant seem to find anyone who can help me on this matter.

drvnbysound

Silver - Posts: 289

Joined: May 06, 2002

Location: United States

Posted: November 21, 2005 at 10:54 PM / IP Logged

I see 2 ignition wires listed for the van, but not 2 accessory wires.

Connect pin 85 and 87 to constant 12V, 86 to the (-) secondary ignition trigger from the alarm. Run a wire from pin 30 to the secondary ignition wire.

JWorm

Platinum - Posts: 2,208

Joined: December 11, 2002

Location: New Hampshire, United States

Posted: November 21, 2005 at 11:01 PM / IP Logged

There is a plug with 4 skinny wires that plug into the relay pack. Connect the orange wire to 85 on a relay. Connect 87 and 86 to a fused (20 amp will be fine) +12v constant wire. Connect 30 to the second accessory wire.

tbone587

Copper - Posts: 167

Joined: January 17, 2005

Location: United States

Posted: November 21, 2005 at 11:28 PM / IP Logged

Check out this link http://www.directwholesale.net/diagrams/diagrams.asp?link=BULLDOG

this website also lists 2 accessory wires. JWorm and drvnbysound you both are saying two different things though. Im not sure which one is right.. One of you is saying connect pin 85 and 87 to power and 86 to trigger on alarm and then 30 to secondary, and the other is saying connect orange wire to 85, 87 and 86 power, and 30 to secondary. Can someone please give me a diffinitive answer.. Im also not sure what 4 skinny wires u are talkin about,

JWorm

Platinum - Posts: 2,208

Joined: December 11, 2002

Location: New Hampshire, United States

Posted: November 21, 2005 at 11:33 PM / IP Logged

Look in the box again...their is an unused harness with a pink, blue, orange and purple wire. They are 18 gauge. It plugs into the relay pack.

Both methods will work. My method will make it act as a true accessory wire. The other method will make it act like an ignition. On very rare occasions, I have seen an accessory powered as an ignition create a problem. Example, on a Ford Excursion the overhead display for how much fuel is remaining would not work correctly.

tbone587

Copper - Posts: 167

Joined: January 17, 2005

Location: United States

Posted: November 21, 2005 at 11:38 PM / IP Logged

Oh ok, I know the harness your talkin about.. So basically the organge wire from that small little harness plugs into pin 85 on the relay. 87 and 86 get the power. Now for pin 30 connect a wire from that to the secondary accessory wire on the car.. I dont understand how that works, considering u didnt mention anything about hooking up the first accessory wire?

JWorm

Platinum - Posts: 2,208

Joined: December 11, 2002

Location: New Hampshire, United States

Posted: November 21, 2005 at 11:41 PM / IP Logged

The first accessory wire goes to the thick orange wire coming out of the relay pack....

tbone587

Copper - Posts: 167

Joined: January 17, 2005

Location: United States

Posted: November 21, 2005 at 11:46 PM / IP Logged

Ohh im stupid, thanks a lot, I get it now. Sounds pretty easy, thanks!!!

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Using a relay to power 2 accessory wires?

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