Anti theft deterrent reset?

Hello my name is Dave.

Here is a link to our tutorial on resetting a security system, hope it helps and thank you for using 2CarPros!

https://www.2carpros.com/articles/how-to-reset-a-security-system

Hi,

Unfortunately, there is no way to bypass the ignition system and security. This system was designed to prevent this exact thing. The only way they could steal it is with the key. So punching the ignition probably came later and is most likely the reason the vehicle was abandoned and then recovered (assuming that is how it was recovered).

More than likely it will run once the ignition system is restored assuming they didn't remove any other components. However, if you are not comfortable inspecting the vehicle closely, I would just take it to someone to look it over and see if anything obvious is missing and the replace the ignition and program new keys if it all checks out.

Thank you for using 2CarPros.

Okay. Yeah, fortunately these guys that steal these things don't try to conceal parts they removed so if you didn't see anything then you are okay.

Let me know if you need anything else. Thanks for using 2CarPros.

If you are getting any kind of security system indicator, here is the relearn procedure.

Disconnect the battery and hold the cables together for about 30 seconds then reconnect the cables before performing the procedure.Read it carefully if done incorrectly it won't work.If it helps let me know.
Turn ON the ignition, with the engine OFF.

Attempt to start the engine, then release the key to ON (vehicle will not start).
Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes (the vehicle is now ready to relearn the Passlockâ Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK).
Important

The vehicle learns the Passlockâ Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
Start the engine (the vehicle has now learned the Passlockâ Sensor Data Code and/or password).

With a scan tool, clear any DTCs if needed (history DTCs will self clear after 100 ignition cycles).

This guide can help as well

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please let us know if you need anything else to get the problem fixed.

Yes you are on the right track their is a driver door lock module that goes out all the time here is the location and the instructions on how to program it

PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS

PROGRAMMING REPLACEMENT PASSLOCK SENSOR, BCM, OR PCM

IMPORTANT:
The body control module (BCM) must be programmed with the proper RPO configurations before performing learn procedures. See Body Control Module (BCM) Programming/RPO Configuration.
If replacing the BCM with a GM Service Parts Operations (SPO) replacement part, the module will learn Passlock sensor data code immediately. The existing PCM, however, must learn the new fuel continue password when the BCM is replaced.
If replacing a powertrain control module (PCM) with a GM Service Parts Operations (SPO) replacement part, after programming, these modules will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password and will require a learn procedure after programming to learn the current vehicles password.
CONDITIONS
Use this procedure after replacing:
Passlock Sensor
BCM
PCM
LEARN PROCEDURES
There are 2 available methods to perform the programming procedure:
A 10 minute procedure which requires a Tech 2 and a techline terminal.
A 30 minute procedure which does not require the use of any tools.
10 MINUTE LEARN PROCEDURE

TOOLS REQUIRED
Tech 2
Techline terminal with current Service Programming System (SPS) software
Connect the Tech 2 to the vehicle.
Select "Request Information" under "Service Programming".
Disconnect the Tech 2 from the vehicle and connect it to a techline terminal.
On the techline terminal, select "Theft Module Re-Learn" under "Service Programming".
Disconnect the Tech 2 from the techline terminal and connect it to the vehicle.
Turn ON the ignition, with the engine OFF.
Select "Program ECU" under "Service Programming".
Attempt to start the engine, then release the key to ON, vehicle will not start.
Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF; the vehicle is now ready to relearn the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK.
Turn OFF the ignition, and wait 5 seconds.
Start the engine; the vehicle has now learned the password.
With the Tech 2 scan tool, clear any DTCs.
30 MINUTE LEARN PROCEDURE
Turn ON the ignition, with the engine OFF.
Attempt to start the engine, then release the key to ON; the vehicle will not start.
Observe the SECURITY telltale; after approximately 10 minutes the telltale will turn OFF.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes ; the vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.
IMPORTANT: The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password.
With a scan tool, clear any DTCs, if needed. History DTCs will self clear after 100 ignition cycles.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

Well, I'm not sure if the no start and the other issues are related. If they are, I would be leaning to wires (not ignition) shorting out or a body control module issue.

Let's treat them separate at this point and go after the most important one.

Regarding the no start:

Have you checked for any codes in the pcm yet?
Check fuel pressure..(I assume a 5.3 liter). Critical that it is right in spec.
There have been issues with e-85 fuel. Spray some carb cleaner in to the throttle body and see if you can run it off the carb cleaner for a few moments.
Check for presence of spark.

Check under the driver's seat for chafed wiring:

What did you find out?

We need to get communication back. Check for a blown fuse for the DLC. IF it is, replace it and recheck for communication.

Is the security light staying on?

Let me know.