Powertrain Control Module (Pcm)
WARNING: This page is about a different car, the 1994 Ford RV Cutaway, 1994 Ford Econoline, 1994 Ford Cutaway, and 1994 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
During system operation, PCM transmits electrical reference signals to engine sensors and analyzes return signals to determine engine operating conditions. See Fig 1. If a sensor, circuit or actuator fails, PCM initiates an alternative strategy, allowing vehicle to continue to be driven. This strategy is called Failure Mode Effects Management (FMEM).
The MIL light will glow and stay on whenever FMEM occurs. During FMEM, the PCM continues to monitor failed sensor/circuit. Should sensor/circuit signals return to normal, PCM will cancel FMEM and resume control based on sensor signals.
PCM LOCATION
| Application | Location |
|---|---|
| Econoline/Club Wagon | Under Right Instrument Panel |
NOTE:
Components are grouped into 2 categories. The first category is INPUT DEVICES, covering components which control or produce voltage signals monitored by the PCM. The second category is OUTPUT SIGNALS, covering components controlled by the PCM.