avital 2101 in 97 blazer

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=136280
Printed Date: May 14, 2025 at 1:34 PM

Topic: avital 2101 in 97 blazer

Posted By: monette999
Subject: avital 2101 in 97 blazer
Date Posted: March 16, 2014 at 12:35 PM

Dear All.

I bought an Avital 2101 and would like to do the min istallation on my
Chevy Blazer.

According the Chevy schmetic my blazer has positive triggered doorlocks.
I have an orange hot wire 12V going to the doorlock actuator swicht.
Can this forum confirm this???

primary harness (H1), 18-pin connector

BROWN / BLACK UNLOCK #87A NORMALLY CLOSED
VIOLET UNLOCK #87 NORMALLY OPEN (INPUT)
BLUE/BLACK UNLOCK #30 COMMON (OUTPUT)
VIOLET/BLACK LOCK #87 NORMALLY OPEN (INPUT)
WHITE/ BLACK LOCK #87 NORMALLY CLOSED
GREEN/ BLACK LOCK #30 COMMON OUTPUT

Which lines do I need to trigger positive triggered doorlocks?

What means door lock common & unlock common.

Do we have a sample schematic for positve triggered door locks?

Thank you

BR
Bob

Replies:

Posted By: harryharris
Date Posted: March 16, 2014 at 1:03 PM

Don't use BROWN / black or white /black.
The purple and PURPLE / black to your orange 12V+ constant.
GREEN/ black to lock (light blue) and blue/black to unlock (white).

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Test before boxing up.

Posted By: monette999
Date Posted: March 17, 2014 at 2:11 AM

Thank you Harry,

I have an old broken Clifford Keyless Entry harness in the vehicle,

I would like to attache my cables there & not rip the dashboard apart.

Here the schematic and the colors I added to cross.

so the BROWN / black & white black will not been used?

Can you confirm my crossing from Clifford to Avital 2101?

BR
Bob

posted_image

Posted By: harryharris
Date Posted: March 17, 2014 at 2:19 AM

Correct!

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Test before boxing up.

Posted By: monette999
Date Posted: March 17, 2014 at 8:26 AM

Does a Chevy Blazer 97 has a postive or neative triggered system?

posted_image

Posted By: monette999
Date Posted: March 17, 2014 at 2:15 PM

harryharris wrote:

Don't use BROWN / black or white /black.
The purple and PURPLE / black to your orange 12V+ constant.
GREEN/ black to lock (light blue) and blue/black to unlock (white).

Harry
so the 97 Blazer has a negative trigger. I am conneting Violet & Violet Black #87 to +12V (GM orange cable) & conneting Avital GREEN/ Black (Lock#30 common output)to GM light blue & Avital Blue/Black (unlock #30common output)to GM white.

posted_image

Posted By: monette999
Date Posted: March 17, 2014 at 2:36 PM

Are my schematics OK

posted_image

Why is my hot running into 87 and not vice cersa in 30 and 87 switches the relay?

Posted By: harryharris
Date Posted: March 17, 2014 at 4:14 PM

Actually the Blazer is POS (+) not NEG but your wiring is correct.
As for the other posts posted_image

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Test before boxing up.

Posted By: monette999
Date Posted: March 30, 2014 at 5:50 AM

Harry my door locks are working thank you
but can you help me fixing to wire H1/3 & H1/4 Domelight Supervision relay.

On my old harness from Clifford BROWN / Red is connected to ground.
The clifford schematics says "connect to ground negative trigger pin swichtes".

Does it means the Avital H1/3 will be connected to ground and H1/4 goes to the 12V circuit ?

Thank you for the help

Posted By: monette999
Date Posted: March 30, 2014 at 10:44 AM

Good morning, I got it already.

Light is working.

now left over is the rear glass to pop off.

BR
bob

Posted By: harryharris
Date Posted: March 30, 2014 at 2:14 PM

According to my notes your blazer has POS (+)locking hence my first reply.

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Test before boxing up.