Motorcraft Home Technical Resources Home Non-Subscription Resources What's New Body Repair Manuals Diagnostic Tool Support OBDII Theory & Operation Paper/CD Manuals Quick Guides Tools & Equipment Membership Accounts My Shopping Cart Subscription Products Keycode Lookup Reprogramming & Initialization Service Publications Technical Service Bulletins Technical Training Purchase Subscription Ford Specific Acronyms # A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  0-9  (Indexed by Abbreviation) Acronyms Description Vacuum Manifold pressure that is reduced below the ambient atmospheric pressure. Variable Reluctance A process of passing a varying magnetic field through wire windings and inducing a voltage. VBPWR Vehicle Buffered Power. A PCM supplied power source that supplies regulated voltage. VCT, VCT1, VCT2 Variable Camshaft Timing VDF Visctronic Drive Fan VECI Vehicle Emission Control Information label VIN Vehicle Identification Number. A unique identification number given to every vehicle produced. Includes information about the year, model, engine, and plant origin of the vehicle. VMV Vapor Management Valve. Also known as EVAPCP. Refer to EVAPCP. VPWR Vehicle Power. A switched circuit that provides power to the EEC system. Compare to battery voltage (B+). VREF Reference Voltage. A dedicated circuit that provides an approximately 5.0 volt signal used as a reference by certain sensors. VSOUT Vehicle Speed Output. A pulse width modulated vehicle speed signal. VSOUT Vehicle Speed Output. A pulse width modulated vehicle speed signal. VSS Vehicle Speed Sensor. A magnetic pickup device that generates an AC signal that is proportional to the vehicle speed.

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