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cartech, ASE Certified Technician
Category: Chevy
Satisfied Customers: 3332
Experience:  25 years ase mastertech. shop owner and tech
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2001 Chevy Lumina: TDM (Theft Deterrant Module) VATS system

Resolved Question:

location of TDM (Theft Deterrant Module) VATS system on 2001 Chevy Lumina
Submitted: 7 years ago.
Category: Chevy
Expert:  cartech replied 7 years ago.
did you try to do e relearn on the system
Expert:  cartech replied 7 years ago.

here is where the module is located


Theft Deterrent System Component Views

Behind Right Side of IP

Object Number: 399788  Size: LF

(1)Theft Deterrent Relay
(2)Theft Deterrent Module

Customer: replied 7 years ago.
What is a relearn? We have NOT tried that. Can the TDM be reached without setting off the passenger airbag?
Expert:  cartech replied 7 years ago.
  1. Install the new, unprogrammed theft deterrent module.
  2. Insert one of the customer's ignition keys into the ignition lock cylinder.
  3. Turn the ignition lock cylinder to the RUN position.
  4. Start the engine in order to verify that the system operates correctly.
  5. Observe if the SECURITY indicator lamp:
    If the lamp turns ON for about 5 seconds and then turns OFF, the programming of the new theft deterrent module is successfully completed.
    If the lamp flashes at a rate of 1 flash per second (or until the ignition switch is turned to the OFF position) and the engine starts, the programming is not complete. The new theft deterrent module did not store the resistor pellet code.
    Inspect for the following conditions before you repeat the programing procedure:
    - The theft deterrent module connector has poor terminal contact.
    - The ignition lock cylinder circuits have opens, shorts to battery, or shorts to ground
    - The resistor sensing contacts are faulty.
    - The ignition key resistor pellet is faulty.
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