Wiring, Stereo & Electronics Audio Components | Radars | Alarms - and things that spark when they shouldn't

security light won't start

Thread Tools
 
Search this Thread
 
Old Aug 11, 2012 | 05:24 PM
  #1  
20TA00's Avatar
Thread Starter
Teching In
 
Joined: Jun 2011
Posts: 19
Likes: 0
Default security light won't start

okso i have a 2002 2 dr 4x4 blazer that i need help with. i tried asking the guys on the blazer forum what to do but i got no response. so here it is...

ok so my turn signal/brights/wiper switch went bad.. so i went to the junk yard got one from the same modelyear and every thing, changed it out with a couple hours a little difficulty but i got it in and every thing... it works great!.. except my security light is now ON. not flashing. just ON all the time. and my car will not start i know it wants to but the security is holding it back..
it feels like when i bought a new key for my grand prix that wasnt micro chipped. it will turn over run for about a second and shut off...

i dissconected my battery and let it sit for a good amount of time came back to it and tried starting but the same thing happened..

please help.
Reply
Old Aug 12, 2012 | 10:28 AM
  #2  
WhiteBird00's Avatar
Ungrounded Moderator
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Nov 2003
Posts: 11,328
Likes: 344
From: Jacksonville, FL (originally from Toronto Canada)
Default

There are several reasons the VATS system will prevent the car from starting. They range from a grimy key to dirty contacts in the ignition cylinder to broken wires or a bad BCM. Do a search on "VATS" to find plenty of advice on troubleshooting.
Reply
Old Aug 12, 2012 | 11:44 AM
  #3  
JTom's Avatar
Teching In
 
Joined: Aug 2005
Posts: 13
Likes: 0
From: iowa
Default

Your blazer has Passlock 2, not vats. Try leaving the key on in the ignition position for 10-15 mins. That is the reset for when it gets tripped. If that doesn't work maybe there is another issue from the swap you did.
Reply
Old Aug 12, 2012 | 12:39 PM
  #4  
WhiteBird00's Avatar
Ungrounded Moderator
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Nov 2003
Posts: 11,328
Likes: 344
From: Jacksonville, FL (originally from Toronto Canada)
Default

Originally Posted by JTom
Your blazer has Passlock 2, not vats. Try leaving the key on in the ignition position for 10-15 mins. That is the reset for when it gets tripped. If that doesn't work maybe there is another issue from the swap you did.
Sorry, VATS is an acronym for Vehicle Anti Theft System and applies to both the PASS-Key and PASS-Lock variations.

You can tell the difference because PASS-Key uses ignition keys with a resistor pellet in the key shaft whereas PASS-Lock uses ordinary keys and has its sensor inside the ignition cylinder. If you have a resistor pellet in your key, the bypass procedure used for 4th gen f-bodies will work. If not, the PASS-Lock system is much easier to bypass since you don't have to fuss with resistors.
Reply




All times are GMT -5. The time now is 03:10 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE