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Powertrain Control Module (PCM)

Fig 1: Identifying Powertrain Control Module (PCM) Components
G03192206Courtesy of FORD MOTOR CO.

The PCM is located under the trim panel on the right-hand A-pillar.

On vehicles with automatic transmissions, the EEC-V PCM controls the transmission in addition to the engine management system. In this case, a module with 104 pins is used.

The PCM evaluates the incoming signals from the individual sensors and actuates the solenoid valves in the valve body of the transmission directly according to the operating state.

Diagnostic checks can be carried out on the transmission through the data link connector (DLC) above the central junction box (CJB).