Powertrain Control Module: Notes
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
The center of the Electronic EC system is a microprocessor called the powertrain control module (PCM). The PCM receives input from sensors and other electronic components (switches, relays). Based on 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 PCM's in use for this model year. Refer to the vehicle PCM application table below for PCM type and their applications.
VEHICLE PCM APPLICATION
| PCM Type | Applications |
|---|---|
| 104-Pin (Figure) |
Focus, Taurus/Sable, Mustang, Crown Victoria/Grand Marquis, Town Car, Escape, Ranger, Freestar/Monterey, Explorer Sport Trac, E-Series, F-Series Heritage, F-Series Super Duty, Lightning, Excursion |
| 122-Pin (Figure) |
Expedition, Navigator |
| 150-Pin (Figure) |
Lincoln LS, Thunderbird, Aviator |
| 150-Pin (Figure) |
2.3L Focus, Explorer/Mountaineer |
| 190-Pin (Figure) |
F150 (Non-Heritage) |