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Home >> Chevrolet >> 2001 >> Venture V6-3.4L VIN E >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Powertrain Control Module (PCM) >> Powertrain Control (PCM) Module -Antitheft Control
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Powertrain Control (PCM) Module -Antitheft Control

The Powertrain Control Module (PCM) verifies that the password received from the Antitheft and Alarm Systems control module (VTD) via the Class 2 serial data circuit is correct. The PCM can learn only one enable password. If the enable password is correct, the PCM enables the starting and fuel delivery systems.

The PCM disables the starting and fuel delivery systems if any of the following conditions occur:
^ The enable password is incorrect.
^ The system disable password is sent by the VTD module.
^ No passwords are received - there is no communication with the VTD module.
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