passlock 1

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=23114
Printed Date: July 01, 2025 at 8:54 AM

Topic: passlock 1

Posted By: muaiad97
Subject: passlock 1
Date Posted: December 20, 2003 at 3:36 PM

Hi all

pleas anyone can tell me how much the resistor in this passlock 1.

or i have to mesure it .the car its sunfire 98.

Replies:

Posted By: JeremyB
Date Posted: December 20, 2003 at 4:01 PM

You have to measure. There are bypass modules around that you just wire them up and after you start the vehicle a few times with the key will learn the resistance needed

Posted By: jrilla
Date Posted: December 20, 2003 at 7:34 PM

Take a look at the upper right diagram on this link (Diagram #3):

Passlock I temporary bypass (diagram #3)

To get the resistence value: Strip back the Black wire (ORANGE / Black on Trucks). Start the car with the key, then cut the yellow passlock wire. strip back the key side of the yellow wire and take a DMM and put one lead on the key side of the yellow wire and the other on the ORANGE / Black wire. Record the resistence, then reverse the two leads and record the resistence. Dial in the higher of the two resistences recorded into a trimpot (or buy a resistor within 5% of the measured value) and set it up using two standard 30 amp automotive relays according to the diagram

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J Rilla

Owner/Installer

Posted By: muaiad97
Date Posted: December 23, 2003 at 9:34 PM

thank u

#87 is it ground in that diagram .

Posted By: jrilla
Date Posted: December 24, 2003 at 12:17 AM

Umm, 87 on the left relay goes to the bulb test wire which is located in the same connector as the Red 12v+ constant wires at the key cylinder.

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J Rilla

Owner/Installer