Powertrain Control Module (PCM): Notes
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
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 (switches, relays). Based on the information received and programmed into its memory, the PCM generates output signals to control various relays, solenoids and actuators. There are several different types of PCMs in use for this model year. Refer to the VEHICLE PCM APPLICATION table below for PCM types and their applications.
VEHICLE PCM APPLICATION
| PCM Type | Applications |
|---|---|
| 104-Pin | Excursion, Explorer Sport Trac, Ford GT, Freestar, Monterey, Ranger, Sable, Taurus |
| 150-Pin | Aviator, Crown Victoria, Escape, Explorer, Five Hundred, Focus, Freestyle, Grand Marquis, LS, Mariner, Mountaineer, Montego, Thunderbird, Town Car |
| 170-Pin | E-Series, Mustang, F-Super Duty |
| 190-Pin | Expedition, F-Series, Navigator |