GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM) Replacement

If the body control module (BCM) is replaced, the following procedures must be performed in the following order:

  1. BCM Reprogramming--Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.
  2. Important: This procedure has to be performed only for vehicles equipped with Passlock™ System.

  3. Theft Learn--Refer to Programming Theft Deterrent System Components in Theft Deterrent. A new BCM will learn the Passlock™ information automatically but the powertrain control module (PCM) must still learn the theft information from the BCM.
  4. Relearn Restraints ID--Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.

BCM Reprogramming

If the BCM is reprogrammed, the following procedures must be performed:

  1. BCM Reprogramming--Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.
  2. Important: This procedure has to be performed only for vehicles equipped with Passlock™ System.

  3. Theft Learn--Refer to Programming Theft Deterrent System Components in Theft Deterrent.
  4. Relearn Restraints ID--Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.

Inflatable Restraint Sensing and Diagnostic Module (SDM) Replacement

If the sensing and diagnostic module (SDM) is replaced, the following procedure must be performed:

Relearn Restraints ID--Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.

Passlock™ Sensor Replacement

If the Passlock™ Sensor is replaced perform the theft learn procedure. Refer to Programming Theft Deterrent System Components in Theft Deterrent.