Installation Procedure

Remove the new PCM from the packaging and inspect the service number to verify the number is the same number, or an updated number, as the faulty PCM.

1. Push the PCM (2) into the PCM bracket (3). The retaining tab will lock in place.
   Fig 1: View Of PCM

   Courtesy of GENERAL MOTORS CORP.
   NOTE: Do not touch the PCM connector pins or soldered components on the circuit board in order to prevent possible electrostatic discharge (ESD) damage. Do not remove the integrated circuit boards from the carrier.
2. Install the PCM harness connectors (1) and lock down the release levers.
3. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
   IMPORTANT: The replacement PCM must be reprogrammed and the crankshaft position system variation learn procedure must be performed.
4. Program the PCM. Refer to Service Programming System (SPS) in Programming.