GM Service Manual Online
For 1990-2009 cars only

The following service procedures require either a programming or a setup event performed for a complete repair.

The powertrain control module (PCM) cannot be programmed with updated software. The correct replacement PCM is already programmed. The only required setup procedure to perform after PCM replacement is to program the current vehicle identification number (VIN).

PCM Replacement

If the PCM requires replacement, refer to the following:

  1. The VIN must be programmed using the Pass Through Programming method--Refer to Service Programming System (SPS) .
  2. Refer to Powertrain Control Module Replacement .