Malibu V6-191 3.1L VIN M SFI (1997)
Installation Procedure
Remove the new PCM from its packaging and check the service number to make sure it is the same number or updated number as the faulty PCM.
1. Slide the PCM into the PCM bracket.
2. Install the PCM Retainer.
Notice: In order to prevent possible electrostatic discharge damage to the PCM, do not touch the connector pins or soldered components on the circuit
board. Do not remove the integrated circuit boards from the carrier.
3. Install the PCM electrical connectors.
4. Tighten the PCM connector screws (1).
5. Install the LH hush panel.
6. Connect the negative battery cable.
Important: Replacement PCMs must be reprogrammed and the crankshaft position system variation procedure must be performed. Refer to the latest
Techline information for PCM programming and Crankshaft Position System Variation Procedure. See: Crankshaft Position Sensor/Testing and
Inspection
7. Reprogram the PCM.
