Vats System?

[Shall44]

I have a 99 Trans Am WS6 with a 6-speed manual LS1.

I was away for a while, and the battery died.

When I got back, I replaced the battery, but the car would not start, and the security light was on.

I reprogrammed the key and still got nothing.

I replaced the ignition and had a blank key cut to match, ensuring the new key had the same ohms as the old one.

Still cannot get the car to turn over.

I hooked up a push button to the starter to make sure everything else was working, and I can get the car to start and run for about 5-10 seconds before it cuts off.

I am stumped at this point.

Has anyone experienced this?

I think the security system is cutting the vehicle off because it thinks it’s being stolen.

I appreciate your help.

 

[Pontiac Trans Am]

Are you sure there isn't another security system on the car?

Thank you,
PTA Staff

 

[Shall44]

Are you sure there isn't another security system on the car?

Thank you,
PTA Staff

Just found out that there is a battery in the radio that, when the main battery dies, keeps the Vats system online.

Do you know of any way to reprogram that radio or charge that battery?

 

[Shall44]

The car is entirely original with 70,000 miles, so I am trying to avoid bypassing the security system if at all possible.