2000 Alero / Alarm wiring ?’s

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=19070
Printed Date: November 08, 2025 at 9:50 PM

Topic: 2000 Alero / Alarm wiring ?’s

Posted By: crazykid
Subject: 2000 Alero / Alarm wiring ?’s
Date Posted: September 19, 2003 at 9:17 PM

Hello, I am currently working on installing an alarm system into my 2000 olds alero. I've already looked at some of the information here provided on the12volt. Has helped a lot actually, but I do need some help find a couple of things.

1. I need to connect a wire from the alarm to the door that supplies a - when opened... same for the trunk... I was looking around and believe I have to use diodes when I tap into the wires? Also, which wires (and where are they) that i exactly tap into?

2. What type of locking system does this 2000 olds alero have?

3. For the ignition, which wire is what? I need to know which wire supplies a +12v when the ignition is in the 'on' position.

Thanks for any help you can provide. I think thats all the questions i have for now. I have 3 years electrical training in school and i've done wiring stuff many times in cars before (neons, subs, head units, the simple stuff). This is my first time tackling something a bit more complex in a car :-)

- Nick

Replies:

Posted By: draasch
Date Posted: September 19, 2003 at 9:45 PM

Make:   Oldsmobile
Model: Alero
Year:    2000
This Database Was Last Updated On:    6/9/03
Index #: 2281

Alarm
Constant 12 volts RED & RED / BLACK IGNITION SWITCH HARNESS
Ignition 12 volts PINK IGNITION SWITCH HARNESS
Starter YELLOW IGNITION SWITCH HARNESS
Dome Light WHITE (-) * AT COURTESY LIGHT
Trunk Pin Switch ORANGE / BLACK (-) AT SWITCH OR LIGHT IN TRUNK
Parking Lamp BROWN (+) AT HEADLIGHT SWITCH
Power Lock WHITE ** DRIVER KICK
Power Unlock SINGLE WIRE SYSTEM PANEL #217

* Optional Door Trigger Located At Body Control Module Under Passenger Dash. L GREEN/ BLACK (-) Covers Driver Door, L BLUE (-) Covers All Other Doors. Diode Isolation Needed, Cathode (Band) Side Of Diode Faces OEM Wires. ** Doorlocks Are Found As A Single Wire System. A Negative Pusle On The WHITE Wire In The Driver Kick Panel Will Lock The Doors. A Negative Pulse Thru A 1.5K Ohm Resistor On The Same WHITE Wire Will Unlock The Doors

-------------
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt

Posted By: Chris Luongo
Date Posted: September 19, 2003 at 11:12 PM

1. Light GREEN/ black, in one of the plugs in the driver's kick panel, catches the driver's door.

Light blue catches the other door(s). If it's a two-door coupe, the wire is in the passenger kick panel. If it's a four-door sedan, it's in a bundle of wires that comes out sideways from under the driver's seat, then runs toward the rear of the car.

Yes, you'll need two diodes.

2. White wire, driver's kick panel, in the same plug where you got the driver's door trigger. Straight negative pulse to lock the doors, negative pulse through a small resistor to unlock.

3. The ignition wires are all standard GM colors. Drassch's information is correct. But as with any proper installation, you should of course test the function of each wire before connecting your alarm to it.

Posted By: crazykid
Date Posted: September 20, 2003 at 2:02 PM

Thanks a lot for the information guys, got another ?

Ignition 12 volts PINK IGNITION SWITCH HARNESS

There are 2 pink wires there... if you look close though 1 is slightly darker than the other.

Posted By: crazykid
Date Posted: September 20, 2003 at 2:07 PM

actually... sorry they are both exactly same pink.

Posted By: Chris Luongo
Date Posted: September 20, 2003 at 8:12 PM

Both pinks are tied together at the switch....use either one.