95 sc300, cifford matrix 12.5

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=116857
Printed Date: July 14, 2025 at 6:34 AM

Topic: 95 sc300, cifford matrix 12.5

Posted By: halientdesigns
Subject: 95 sc300, cifford matrix 12.5
Date Posted: October 10, 2009 at 1:07 PM

I recently picked up a 95 Lexus Sc300 that has a Clifford Matrix 12.5 partially installed and need some help finishing the job so if anyone could help that would be great.

Features that are installed and work.
1. power to alarm
2. Siren
3. Ground
4. trunk release
5. Remote
6. Led

Items that dont work or are not connected
1. lock\unlock not working at all
2. door trigger (keeps saying the doors are open when they are closed)
3. factory alarm override
4. dome light

if anyone can tell me or show what wires need to be tapped and what they need to be connected that would be great. Pics are definitely appreciated since some of the wires in the car are quite faded (red looks pink, all of the greens look the same, exc)

Replies:

Posted By: ckeeler
Date Posted: October 12, 2009 at 12:01 PM

do you own a DMM? you are going to need one to complete the install because the remaining wires you need to connect into need to be tested, especially since you mention the wire colors being a little "faded".

the lock wires are in the passenger side kick panel, lock=GREEN/ YELLOW(-), unlock=GREEN / WHITE(-)

the door trigger is in the driver side kick panel, door trigger=RED / white(-)

factory alarm disarm is in the driver side kick panel, FAD=green(-)

the domelight is triggered by the door trigger wire i listed above, its high current though, so if your unit only has a 500ma dome supervision output you will need to use a relay to give the door trigger wire a high current ground.

Posted By: halientdesigns
Date Posted: October 12, 2009 at 12:21 PM

thanks for the info, I think i will let the dome stay as is for the moment, i just need to make sure that I can lock and unlock my doors

Posted By: halientdesigns
Date Posted: October 12, 2009 at 1:22 PM

could you tell me if it is in the harness labeled 1 or 2? According to
https://www.the12volt.com/installbay/alarmdetail/1296.html the black and red is the door lock
posted_image

Posted By: ckeeler
Date Posted: October 12, 2009 at 2:04 PM

use these :passenger side kick panel, lock=GREEN/ YELLOW(-), unlock=GREEN / WHITE(-)

Posted By: halientdesigns
Date Posted: October 12, 2009 at 8:17 PM

I found the wires but at this point dont know what type of locking system this is. According to the manual there are 8 types of lock systems and im not sure what this is considered.

I have attached a link to the install guide so if anyone could be kind enough to tell me what type of setup i am working with so i can finish this install.

I am pulling the wires from the passenger kick panel as ckeeler stated to do
https://www.the12volt.com/installbay/downloads.asp?srch=all&term=clifford+12.5

Posted By: ckeeler
Date Posted: October 12, 2009 at 10:00 PM

that car uses a negative trigger door lock system.