Where is the PCM on a 2003 Buick lesabre?

The Powertrain Control Module (PCM) on a 2003 Buick LeSabre is located in the engine compartment, mounted on the passenger side near the firewall. It's typically situated near the fuse box and may be covered by a protective shield. To access it, you may need to remove some components or covers. Always ensure the battery is disconnected before attempting any work on the PCM.