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93 buick century alarm w/ remote start

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=134660
Printed Date: May 13, 2025 at 3:20 PM


Topic: 93 buick century alarm w/ remote start

Posted By: fmurry925
Subject: 93 buick century alarm w/ remote start
Date Posted: August 04, 2013 at 6:36 AM

Hi, I'm new to this forum and I need help installing a Viper 5704 with remote start into my 1993 Buick Century Sedan. I may be over my head in attempting to do this but I wanted to give it a try. I found the wiring diagram for the alarm but I need help finding out which wire goes where.
Viper 5704 Installation Guide

This is the wiring I currently came up with (Not sure if I'm correct)

Main Harness, 6-Pin Connector
H1/1- 12vdc constant input (Red, +) ---- Constant 12V+ (Red)
H1/2- Chassis Ground (Black, -)        ---- chassis ground (since automatic transmission)
H1/3 - Siren output (Brown, +) ---- wire on siren (red)
H1/4 - Parking light Isolation Wire(wht/brwn) --- Not needed?
H1/5 - Parking Light Output(White)    ---- Parking lights (brown[near light switch])
H1/6 - 500mA Ground when armed output(orange) ---- Not Needed

Door Lock, 3-pin connector
1.500mA unlock output (Blue,- )  ---- Door Unlock (black, +)
2. No Pin
3.500mA Lock output (Green,- ) ---- Door Lock (light blue, +)

Auxilary/Shutdown/Trigger Harness, 24-pin Connector
1. 200mA Ignition 2/Flex Output (Pink/White, - )  ---- Not needed?
2. 200mA 2nd Status/rear defogger output(blue/white, - )---- Not needed
3. 200mA Trunk Release Output (RED / White, - ) ---- Not needed
4. 200mA Dome Light output (BLACK / YELLOW, - ) ----    Maybe white door trigger?
5. 200mA Status Output (Dark Blue, - )---- Not sure?
6. 200mA Aux 3 Output (WHITE/ black, -) ---- Not needed
7. 200mA Aux 1 Output (WHITE/ violet, -) ---- Not needed
8. 200mA Aux 4 Output (ORANGE / black, - ) ---- Not needed
9. Hood pin Input [N/C or N/O] (Gray, -)  ---- to hood pin with terminal
10. Trunk pin/instant trigger input [N/C or N/O] (blue)       ---- is this necessary?
11. Activation Input (WHITE/ Blue)  ---- Not sure what this does?
12. Tachometer Input (Violet/White)      ---- Tach (PURPLE / White)
13. Neutral Safety/ Parking Brake Input (BLACK/ white) ---- to ground (auto transmission)
14. 200mA Factory Alarm DIsarm Output (GREEN/ black, -)   ---- Not needed
15. Door input (Green, - )       ---- Not sure?
16. 200mA Horn Honk output(BROWN / black, -)      ---- Horn Wire (drk green, -)
17. 200mA Ignition 1 Output (Pink, -)     ---- Ignition (Pink) ?
18. Door input (violet, +)        ---- Not sure? related to 15?
19. 200mA Aux 2 output (violet/black, - ) ---- Not needed
20. Brake Shutdown Input (Brown, + )     ---- Brake switch (white)?
21. 200mA Starter Output (violet / YELLOW, - ) ---- Starter (Yellow)? Not sure
22. Diesel Wait to Start Input (Gray/Black, - )        ---- Not needed
23. 200mA Accessory output (Orange, - ) ---- Accessory (Brown or orange)?
24.200mA Factory Alarm Arm Output (GREEN / WHITE, - )        ---- Not needed

Remote Start, 10-Pin heavy Gauge connector
H3/1. Ignition 1 Input/Output(Pink, +)  ---- Ignition (Pink)?
H3/2. Fused (30A) Ignition 2 /Flex Relay Input 87(RED / White, +) ----   Not Sure?
H3/3. Accessory Output (Orange, +) ---- Accessory (Orange or Brown)?
H3/4. Starter Output [Car side of Starter Kill] (Violet, +)   ---- Starter (Yellow, car side)?
H3/5. Starter Input [Key side of Starter kill] (green, +)      ---- Starter (Yellow, key side)?
H3/6. Fused (30A) Ignition 1 Input (Red, + )      ---- Constant 12V+ (Red) ????
H3/7 Ignition 2/ Flex Relay Output (Pink/White, +)  ---- Not Sure?
H3/8 Flex Relay Input 87A key side (Pink/Black, +)  ---- Not needed
H3/9 Fused (30A) Accessory/ Starter Input (RED / Black, +) ---- ????
H3/10 No pin

I know its a lot and thank you for your time for reading this and helping me.
*Extra Notes*
Shock sensor and Audio Sensor connected on Sensor 1

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Yes..... I'm a Noob



Replies:

Posted By: kreg357
Date Posted: August 04, 2013 at 10:26 AM
Here is the first thing to get you started :

Your Buick needs a (+) signal for the door lock wires. You have some choices. If you have some 30/40 Amp SPDT relays you can convert the Vipers (-) lock outputs to (+)
following this 3 Wire Positive diagram : https://www.the12volt.com/doorlocks/page3.asp#3wp

Another way is to buy and use a Directed 451M door lock module. The go for less than $10. The 451M Install guide is in the Downloads section.

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Soldering is fun!



Posted By: fmurry925
Date Posted: August 04, 2013 at 3:18 PM
Thanks for the response I'll Purchase some 30/40 Amp SPDT relays and convert the viper lock to a positive connection. How does my wire connections look?

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Yes..... I'm a Noob



Posted By: smokeman1
Date Posted: August 04, 2013 at 3:58 PM

Not needed on 24 pin connector:  5, 10, 17,  21, 23.  Not needed on heavy  gauge connector  2, 7, 8

If you are not wanting starter kill, omit cutting the starter wire and connect only the violet H3/4 to the starter wire. Forget the green H3/5 connection.



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Posted By: fmurry925
Date Posted: August 05, 2013 at 4:24 AM
Does the other Wiring look okay?

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Yes..... I'm a Noob



Posted By: smokeman1
Date Posted: August 05, 2013 at 12:57 PM
They look good, just make sure you TEST and Verify the wires on the car before making your connections.

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When all else fails, Read the Instructions
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