Powertrain Control Module (PCM)

The center of the electronic engine control (EEC) system is a microprocessor called the PCM. The PCM receives input from sensors and other electronic components. Based on information received and programmed into its memory, the PCM generates output signals to control various relays, solenoids, and actuators. The Ford Escape Hybrid uses a 150 pin PCM which has 3 separate electrical harness connectors.

Fig 1: Identifying Powertrain Control Module Connectors/Terminals

Courtesy of FORD MOTOR CO.