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 RABS Rear Anti-lock Brake System RAM Random Access Memory. Memory into which information can be written as well as read. RDI Restraint Deployment Indicator REDOX Reduction Oxidation Catalytic converter. A catalytic converter system designed to operate at high temperatures. Regulator Controls the alternator/generator field current to maintain the proper battery charge. Contained within the PCM in smart charging applications. Relay An electromechanical device in which connections in one circuit are opened or closed by changes in another circuit. REM Rear Electronic Module Repetitive Spark Multiple firings of individual spark plugs at engine speeds of less than 1000 RPM to improve idle quality and improve emissions. REVERSE or REV Transmission Reverse Switch Input RF Radio Frequency RFI Radio Frequency Interference RFS Return Fuel System RLC Reverse Lamp Control RM Relay Module. A module containing 2 or more relays. ROM Read-Only Memory. Computer memory that can be accessed and used, but not altered. RON Research Octane Number Routine A group of related tasks, such as a series of diagnostic tests. RPM Revolutions Per Minute RS Reverse Switch RTN Return. A dedicated sensor ground circuit. RWD Rear Wheel Drive

PRIVACY • YOUR CALIFORNIA PRIVACY RIGHTS • Return Policy • Contact Us • Help • Glossary •  Web Server: FCXWS444          • RETAIL