Where is the pcm located on 2003 Chevy Avalanche?

The Powertrain Control Module (PCM) on a 2003 Chevy Avalanche is typically located near the engine, specifically on the driver's side, attached to the engine compartment's firewall. It may also be found near the intake manifold, depending on the specific engine configuration. To access it, you may need to remove any components that obstruct its location, such as the air intake assembly. Always consult the vehicle's service manual for precise details and safety precautions.