1999 blazer immobilizer
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=6238
Printed Date: August 14, 2025 at 7:52 AM
Topic: 1999 blazer immobilizer
Posted By: cpsco
Subject: 1999 blazer immobilizer
Date Posted: December 04, 2002 at 5:11 PM
is there no way to overide the fuel cut out on this vehicle?
Replies:
Posted By: securinu
Date Posted: December 04, 2002 at 7:43 PM
Passlock II passive anti-theft bypassAll GM trucks 1998 & up are equipped with PASSLOCK II security systems. In many ways it is like the PASSLOCK Isystem found on the 96-97 Cavalier and Sunfire, but with a few small changes. There is no bulb test wire on the ignitionswitch and the measurement for your resistor must be taken with the engine running.
1. Start the car with the key
2. Locate the 3 small wires (YELLOW, ORANGE / BLACK and RED / WHITE) coming from the ignition switch.
3. Separate the wires and cut the YELLOW wire in half.
4. Splice open the ORANGE / BLACK wire but do not cut it.
5. Use a digital ohm meter, attach 1 lead to the ORANGE / BLACK wire and the other lead to the Key side of theYELLOW wire.
6. Find a resistor of the same value +/- 10 ohms.
7. Wire 2 relays as shown
PLEASE NOTE: This is a fuel cut-off system. If the PASSLOCK II system is not properly bypassed the engine willimmediately shut down after remote start. If this occurs verify that all the wiring is properly connected and that yourresistor is within the allowable parameters.
Posted By: floaterr
Date Posted: December 07, 2002 at 1:23 PM
https://www.commandocaralarms.com/itemdetails.asp?Productid=558 Are you can get this which will do it for you. Don't forget to hook up all the IGN wires (tranny,puter, ign)
Posted By: cpsco
Date Posted: December 09, 2002 at 9:50 AM
So if i do what you say will the fuel cut-off be dissarmed for good? All i need to do is to dissarm the immobilzer for good,i am not going to fit a remote starter as they are illegal in england
Posted By: kickyride
Date Posted: December 09, 2002 at 3:57 PM
You can just perform the bypass like described above only you'll connect it to the vehicle's ignition wire instead of an ignition output from a remote start unit.
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Mike
Sales/Tech Support - KICKYRIDEoCOM mobile electronics
MECP 1st class-Security Specialist
Posted By: cpsco
Date Posted: December 10, 2002 at 2:27 PM
Thank you all for your help,i will try this,but numer 7 in the instruction says 'fit 2 relays shown'.what does this mean?
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