pre-wiring ultra start 4255?

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=49105
Printed Date: May 14, 2025 at 1:24 PM

Topic: pre-wiring ultra start 4255?

Posted By: mikk
Subject: pre-wiring ultra start 4255?
Date Posted: February 01, 2005 at 9:49 AM

I'm installing an ultra start 4255 series and wondering how to pre-wire the harness to make things go quicker. will i need to install any relays also? i have a '94 pontiac bonneville that i believe has (+) power locks, unlocks wiring.i think the the ultra has negative(-) wires off the brain for locks so i think i'll need relays here? my car only has 1st igintion only so do i leave the jumper on the default seting which is #3? thanks.

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mikk

Replies:

Posted By: thepencil
Date Posted: February 01, 2005 at 11:50 AM

"I'm installing an ultra start 4255 series and wondering how to pre-wire the harness to make things go quicker. "

Always one wire at a time is the quickest. Take all the wire that needs to be connected and tape up the rest of the wire that you think you don't need. Ask questions when you don't understand something or unsure of. Never AssUme. There are lots of people who can help you out. Don't be afraid to ask if you need help.

1994 Pontiac Bonneville wiring diagram

door locks info.

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Be careful whose advice you buy, but be patient with those who supply it. posted_image

Posted By: mikk
Date Posted: February 01, 2005 at 12:15 PM

thanks for the info. i'm not sure which lock type i have only that it is postive(+). when the polarity is opposite on each end of the wire than a relay is neccessary? is that a way to distigish of relay is needed? thanks.

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mikk

Posted By: velcro
Date Posted: February 01, 2005 at 1:18 PM

does the car have factory keyless entry? if it does, it should have a double wide relay sitting behind the passenger glove box, on the right. the relay assy will have 6 wires, the light blu on is lock, the black on is unlock. both wires take a positive to make pdl's to work. u will need 2 relays between vehicle lock wiring & 4255 module. u can buy a 'polarity inverter', nice & small & will inverter a negative signal to a positive one, great for power lock use. of course a polarity inverter is solid state, & has low current capability, fine for your use here. but be careful with them for other uses.

the jumper can stay in position 3, since the white wire will not be connected.

Posted By: mikk
Date Posted: February 01, 2005 at 10:30 PM

currently i have a viper210hv keyless entry and that had decent range til i installed a boa remote car starter and after trying everything (to have same range before the boa) with the antenna and seperate power wires from battery no luck in correcting it. seems like theres conflict or something. so gonna scrap them both and install an ultra 4255. might be alittle confusing since the polarity is different than dei's. been getting great help from these question posted and should be able to install one faeture at a time. can the factory horn(honk) be connected to the siren wire?

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mikk

Posted By: velcro
Date Posted: February 02, 2005 at 12:39 PM

u can hook up siren wire to a relay, then relay output to the horn wire at steering column, horn trigger is a negative (ground) to turn on, need relay also for current.

Posted By: mikk
Date Posted: February 02, 2005 at 1:12 PM

you wouldnt know off hand what wires go where on the relay to hook up horn instead of siren? 85, 87, etc? thanks

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mikk

Posted By: velcro
Date Posted: February 05, 2005 at 10:44 PM

85 to ground

86 to siren wire from 4255

30 to ground

87 to horn wire at steering column

Posted By: mikk
Date Posted: February 05, 2005 at 11:58 PM

thanks i'll try that. you wouldnt know what the lock type i have in my car? trying to hook the power locks up and when i did i pressed lock button and doors unlocked vice-versa on the unlock button. posted_image

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mikk

Posted By: mikk
Date Posted: February 06, 2005 at 12:13 AM

velcro or anyone- would the power trunk pop be the same as the horn relay with ground at 85&30? or would 12 volts be at 87&86? thanks.

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mikk