F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
Multifunction Electronic Control Modules: Application and ID
Generic Electronic Module (GEM)
Used on 4WD models and/or 2WD models equipped with power windows.
Controls the interval wiper, shift on the fly, and one touch down power window functions.
Central Timer Module (CTM)
Used on 2WD models without power windows.
Controls the interval wiper functions.
Remote Anti-Theft Personality (RAP) Module
Used on models built BEFORE 10/2/00.
Controls the keyless entry and power door lock functions.
Central Security Module
Used on models built AFTER 10/2/00.
Controls the keyless entry and power door lock functions.
