Where is the pcm on a 1990 Oldsmobile cutlass ciera?

The Powertrain Control Module (PCM) on a 1990 Oldsmobile Cutlass Ciera is typically located under the dashboard, to the left of the steering column. It may be mounted on the firewall or behind the glove compartment. Accessing it may require removing panels or the glove box for easier reach. Always consult the vehicle's service manual for specific instructions.