Acronyms and Definitions
Acronyms and Definitions
Note: This acronyms and definitions listing contains technical terms applicable to Ford Motor Company products. It is not intended to be an all-inclusive dictionary of components and their functions.
- 2V: Two valves per engine cylinder
- 3V: Three valves per engine cylinder
- 4V: Four valves per engine cylinder
- 4WD: Four Wheel Drive
- ABS: Anti-Lock Brake System
- A/C: Air Conditioning
- A/CC: Air Conditioning Clutch
- A/CCR: Air Conditioning Clutch Control Relay
- ACCS: Air Conditioning Cycling Switch
- ACET: Air Conditioning Evaporator Temperature
- ACP: Air Conditioning Pressure
- A/D: Analog-to-Digital
- APP: Accelerator Pedal Position
- BARO: Barometric Pressure
- BJB: Battery Junction Box
- BPP: Brake Pedal Position
- BPS: Brake Pedal Switch
- BTDC: Before Top Dead Center
- CAC: Charge Air Cooler
- CAN: Controller Area Network
- CCM: Comprehensive Component Monitor
- CF: Cooling Fan
- CHT: Cylinder Head Temperature
- CKP: Crankshaft Position
- CL: Closed Loop
- CMP: Camshaft Position
- CO: Carbon Monoxide
- CO2: Carbon Dioxide
- COP: Coil On Plug
- CPP: Clutch Pedal Position
- CPU: Central Processing Unit
- CTO: Clean Tach Output
- CV: Canister Vent
- DBA: Driver Brake Application
- DC: 1. Direct Current 2. Duty Cycle
- DEPS: Dual Equal Phase Shifting
- DFSO: Deceleration Fuel Shut-Off
- DIPS: Dual Independent Phase Shifting
- DLC: Data Link Connector
- DMM: Digital Multimeter
- DRI: Deposit Resistant Injector
- DTM: Diagnostic Test Mode
- DTC: Diagnostic Trouble Code
- E10: Fuel containing 10% ethanol
- E85: Fuel containing 85% ethanol
- EATC: Electronic Automatic Temperature Control
- ECM: Electronic Control Module
- ECT: Engine Coolant Temperature
- EEC: Electronic Engine Control
- EEGR: Electric Exhaust Gas Recirculation
- EEPROM: Electrically Erasable Programmable Read-Only Memory
- EGR: Exhaust Gas Recirculation
- EI: Electronic Ignition
- EMD: Engine Manufacturers Diagnostics
- EMI: Electromagnetic Interference
- EONV: Engine Off Natural Vacuum
- EOT: Engine Oil Temperature
- EPC: Electronic Pressure Control
- EPS: Exhaust Phase Shifting
- E-Quizzer: Enhanced Quizzer
- ERFS: Electronic Returnless Fuel System
- ESM: EGR System Module
- ESOF: Electronic Shift-on-the-Fly
- ETB: Electronic Throttle Body
- ETBTACM: Electronic Throttle Body Throttle Actuator Control Motor
- ETBTPS: Electronic Throttle Body Throttle Position Sensor
- ETC: Electronic Throttle Control
- EVAP: Evaporative Emission
- EVAPCP: Evaporative Canister Purge Valve
- FAOS: Fore-Aft Oxygen Sensor
- FC: Fan Control
- FCIL: Fuel Cap Indicator Lamp
- FEPS: Flash EEPROM Programming Signal
- FFV: Flexible Fuel Vehicle
- FLI: Fuel Level Input
- FMEM: Failure Mode Effects Management
- FP: Fuel Pump
- FPC: Fuel Pump Control
- FPDM: Fuel Pump Driver Module
- FPM: Fuel Pump Monitor
- FRP: Fuel Rail Pressure
- FRPT: Fuel Rail Pressure Temperature
- FSS: Fan Speed Sensor
- FTP: Fuel Tank Pressure
- FWD: Front Wheel Drive
- GPM: 1. Grams per Mile 2. Gallons per Minute
- H: Hydrogen
- HC: 1. Hydrocarbon 2. High Compression
- HDR: High Data Rate
- HLOS: Hardware Limited Operating Strategy
- HO2S: Heated Oxygen Sensor
- Hz: Hertz
- IAC: Idle Air Control
- IAT: Intake Air Temperature
- IAT2: Intake Air Temperature 2
- IDM: Ignition Diagnostic Monitor
- IDS: Integrated Diagnostic System
- IFS: Inertia Fuel Shut-Off
- I/M: Inspection/Maintenance
- IMRC: Intake Manifold Runner Control
- IMRCM: Intake Manifold Runner Control Monitor
- IMTV: Intake Manifold Tuning Valve
- INJ: Injector
- IPC: Independent Plausibility Checker
- IPS: Intake Phase Shifting
- ISO: International Standards Organization
- KAM: Keep Alive Memory
- KAPWR: Keep Alive Power
- KOEO: Key On Engine Off
- KOER: Key On Engine Running
- Km/h: Kilometers per Hour
- kPa: Kilopascal
- KS: Knock Sensor
- L: Liters
- LDR: Low Data Rate
- LONGFT: Long-Term Fuel Trim
- LOS: Limited Operating Strategy
- MAF: Mass Air Flow
- MAP: Manifold Absolute Pressure
- MFF: Misfire Freeze Frame
- MIL: Malfunction Indicator Lamp
- MRFS: Mechanical Returnless Fuel System
- MSOF: Manual Shift-on-the-Fly
- N: Nitrogen
- NMOG: Non-Methane Organic Gases
- NOX: Oxides of Nitrogen
- NVM: Non-Volatile Memory
- NVRAM: Non-Volatile Random Access Memory
- OASIS: On-line Automotive Service Information System
- OHC: Overhead Cam
- OL: Open Loop
- OSC: Output State Control
- OSR: On-Board System Readiness
- OTM: Output Test Mode
- PATS: Passive Anti-Theft System
- PCM: Powertrain Control Module
- PCM-VSO: Powertrain Control Module - Vehicle Speed Output
- PCV: Positive Crankcase Ventilation
- PCVTE: Positive Crankcase Ventilation Thermal Extension
- Pd: Palladium
- PDJB: Power Distribution Junction Box
- PID: Parameter Identification
- PIP: Profile Ignition Pickup
- PPM: Parts per Million
- PS: Pressure Switch
- PSP: Power Steering Pressure
- PSPT: Power Steering Pressure Transducer
- Pt: Platinum
- PTO: Power Take-Off
- PTS: Professional Technician Society
- PWM: Pulse Width Modulation
- RAM: Random Access Memory
- RFI: Radio Frequency Interference
- Rh: Rhodium
- ROM: Read-Only Memory
- RPM: Revolutions Per Minute
- RWD: Rear Wheel Drive
- SAE: Society of Automotive Engineers
- SCB: Supercharger Bypass
- SFI: Sequential Multiport Fuel Injection
- SHRTFT: Short-Term Fuel Trim
- SJB: Smart Junction Box
- SMR: Starter Motor Request
- TAC: Throttle Actuator Control
- TACM: Throttle Actuator Control Motor
- TCM: Transmission Control Module
- TCSS: Transfer Case Speed Sensor
- TDC: Top Dead Center
- TP: Throttle Position
- TPPC: Throttle Plate Position Controller
- TSB: Technical Service Bulletin
- TWC: Three Way Catalytic Converter
- VCM: Vehicle Communication Module
- VCT: Variable Camshaft Timing
- VECI: Vehicle Emission Control Information
- VID: Vehicle Identification
- VIN: Vehicle Identification Number
- VMV: Vapor Management Valve
- VR: Variable Reluctance
- WOT: Wide Open Throttle
- Transmissions:
Note: The automatic transmission naming convention is as follows:
- The first character, a number, is the number of forward gears.
- The second character, either the letter F or R, represents front (transaxle) or rear (transmission) wheel drive.
- The next set of characters, a grouping of numbers, represents the design torque capacity of the transmission/transaxle.
- The last character, if used, is one of the following:
- E for electronic shift
- N for non-synchronous shift
- S for synchronous shift
- W for wide ratio
As an example, for the 4F27E transaxle, the number of forward gears is 4, the character F indicates front transaxle, 27 represents 270 ft-lbs of torque capacity and the character E represents an electronic shift.
- A/T: Automatic Transmission
- CCS: Coast Clutch Solenoid
- EPC: Electronic Pressure Control
- ESS: Electronic Shift Scheduling
- ISS: Intermediate/Input Shaft Speed Sensor
- M/T: Manual Transmission/Transaxle
- OCS: Overdrive Cancel Switch
- OSS: Output Shaft Speed
- PNP: Park/Neutral Position switch
- SSA/SSB/SSC/SSD/SSE: Shift Solenoids
- SS1/SS2/SS3: Shift Solenoids
- TCC: Torque Converter Clutch
- TCIL: Transmission Control Indicator Lamp
- TCS: Transmission Control Switch
- TFT: Transmission Fluid Temperature
- TR: Transmission Range
- TSS: Turbine Shaft Speed
- VSS: Vehicle Speed Sensor