No, I even tried cleaning the ignition and keys with alcohol.

and still:

How do I get to the thin orange wire of the VATS under the wheel?
Is there an DIY or something with pictures?
How can i recognize the VATS modul?

Don't really know a whole lot, myself. The best I can advise is to click the word "Search" on the top of the page, then enter in "VATS" in the "forum search" area and click the search button. You will have a ton of posts about VATS repairs.

I was about ready to go outside and tear my dash apart just to take pics.

LOL

I read tons of info but couldn't find something that explains how to reach this VATS module !

ok, you dont need to reach the Vats module.....dont even worry about it...you need to find the resistance of your Key, and then get a resistor that "closely" matches that resistance...there are 15 different resistances....place the inline with the IG wires (there is a procedure how to do this, i dont remember off the top of my head) and then your Vats is bypassed....

Here'* some more info.

A problem with Vats (vehicle anti theft system) will usually mean the security light is staying on & the starter is disabled. If this is the problem with your car here are a couple things you can try.

Another key - the contacts on the key can wear down & no longer make a good connection with the contacts in the lock cylinder.

Clean the contacts - use an eraser on the key. I've heard you can clean the contacts in the lock with a cotton swab & alcohol.

If you're still having trouble you need to check the resistance of the key pellet. Once you know the resistance you can check the wiring under the dash. There are two wires in a plastic sleeve that come from the steering column to the dashboard. Disconnect these wires and connect the meter to the wires that go up the steering column. Insert the key & check the resistance while turning the key. The resistance should be very close to the reading you got from the key & the resistance shouldn't vary while turning the key to the run & start positions. If you're getting a bad resistance reading you'll have to bypass reading the key or replace the lock cylinder.

Bypass - Purchase resistors having the same resistance as the key & wire them into the wires coming from the dash. Shouldn't cost more than a couple dollars if you do it yourself. Any shop that installs remote starters can also do this for you.

Replace - I've never done this but think this is how it works. The new lock cylinder will come with a key that doesn't have the resistor pellet. Before installing you'll have to get a key cut to match the new key with a blank that matches the resistance of the old key. This will cost a lot more than the bypass.

Thanks alot for the info guys!
I really appericiate this!

Sahar.

Problem solved today.

New cylinder with keys. My dad didn't want to bypass the VATS.
Anyway I learned alot thanks to you guys and the guy that replaced the cylinder.

I just have one last question, what is the part number for the OEM ignition switch?

I appericiate all the help,
Thanks again, Sahar.

Best way to get OEM part numbers is to go to www.gmpartsdirect.com

it'* a site for a dealership that sells OEM parts at better than most dealer prices.

Can't find the part number..
The part this guy installed in my car is from "starttec"
#700754AV1C001

Is this the original part?