Security
Thread Starter
On The Tree
Joined: Jan 2007
Posts: 124
Likes: 0
Security 96 Trans am. The car was running fine and now it won't crank. Any ideas? I also noticed is I have a red security light that flashes when the key is not in the ignition and while it is in the ignition. Any ideas of what the problem could be?
Troubleshooting the VATS (Vehicle Anti Theft System); an excellent write-up:
http://shbox.com/1/pass_key.html
Post back with your findings and we'll help you along.
http://shbox.com/1/pass_key.html
Post back with your findings and we'll help you along.
Not to jump the gun on trouble shooting...check the little chip in your ignition key for excessive wear....they DO wear out over the years...mine was worn out and causing random issues with starting and the light security coming on. Once I had a new key made, no issues.
Thread Starter
On The Tree
Joined: Jan 2007
Posts: 124
Likes: 0
Ok so I check the chip and it is fine and I did the bypass and still no start so I check the started wires and I get 12 v to the big wire but I get nothing on the small wire even when I had the person turn the key to start it I didn't get anything on the little wire any idea?
TECH Veteran
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
What is the status of the security light? Is it now off? How did you determine the chip was "fine"? Did you test it as suggested in the link posted above? If it tested good to the connection under the dash, why did you bypass it, anyway?
Here is a schematic of the starting system that can help you troubleshoot.
Here is a schematic of the starting system that can help you troubleshoot.
Trending Topics
TECH Veteran
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
If the light is still on, your bypass did not work or there is another issue with the BCM or wiring that is causing a problem. I'll ask again...did you actually test under the dash to see if the key resistance is getting through the column as suggested in the VATS info link? You have to start narrowing down the problem to be able to fix it. If you looked at the starting schematic link I posted, you know everything that is involved to crank the engine.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
Ok so I check the chip and it is fine and I did the bypass and still no start so I check the started wires and I get 12 v to the big wire but I get nothing on the small wire even when I had the person turn the key to start it I didn't get anything on the little wire any idea?