Editing Automotive terms/abbreviations/definitions

Auto Term Beginning with "A" A - Amperes ABS - Anti-Lock Brakes ABRS - Air Bag Restraint System AC - Alternating Current A/C - Air Conditioning ACCS - A/C Cycling Switch ACCUM - Accumulator ACCY - Accessory ACT - Air Charge Temperature Sensor ADV - Advance AFS - Airflow Sensor AFR - Air Fuel Ratio(also see below) A/F - Air/Fuel Ratio AI - Air Injection AIR or A.I.R. - Air Injection Reactor AIS - Air Injection System Alt. - Alternator or Altitude ALDL - Assembly Line Data Link Amp - /amp/amps: Ampere APS - Absolute Pressure Sensor APPS - Accelerator Pedal Position Sensor ASCS - Air Suction Control Solenoid ASD - Auto Shutdown ASDM - Air Bag System Diagnostic Module ASV - Air Suction Valve A/T - Automatic Transmission/Transaxle ATC - Automatic Temperature Control ATDC - After Top Dead Center ATF - Automatic Transmission Fluid ATS - Air Temperature Sensor AWD - All Wheel Drive Auto Term Beginning with"B" B+ - Battery Positive Voltage BAC - By-Pass Air Control BAP - Barometric Absolute Pressure Sensor BARO - Barometric Batt. - Battery Bbl. - Barrel (Example: 4-Bbl.) BCM - Body Control Module BHP - Brake Horsepower BMAP - Barometric and Manifold Absolute Pressure Sensor BOO - Brake On-Off Switch B/P - Backpressure BPS - Barometric Pressure Sensor BPT - Backpressure Transducer BTDC - Before Top Dead Center BTU - British Thermal Unit Auto Term Beginning with "C" C - Celsius (Degrees) CAN - Controller Area Network CANP - Canister Purge CAS - Crank Angle Sensor CARB - California Air Resources Board CAT - Catalytic Converter CB - Circuit Breaker CBD - Closed Bowl Distributor CC - cubic centimeter CCC - Computer Command Control CCD - Computer Controlled Dwell CCOT - Cycling Clutch Orifice Tube CCW - Counterclockwise CDI - Capacitor Discharge Ignition CEC - Computerized Engine Control CID - Cubic Inch Displacement CM - Centimeter CMP - Camshaft Position Sensor CO - Carbon Monoxide CO2 - Carbon Dioxide Cont. - Continued CONV - Convertible CP - Canister Purge CKP - Crankshaft Position Sensor COP - Coil On Plug Ignition CPI - Central Port Injection CPU - Central Processing Unit CSSA - Cold Start Spark Advance CSSH - Cold Start Spark Hold CTS - Coolant Temperature Sensor CTVS - Choke Thermal Vacuum Switch Cu. In. - Cubic Inch CVC - Constant Vacuum Control CVR - Control Vacuum Regulator CV - Check Valve or Constant Velocity CW - Clockwise CYL or Cyl. - Cylinder Auto Term Beginning with "D" D - Drive dB - Decibels DC - Direct Current Or Discharge DDD - Dual Diaphragm Distributor Def. - Defrost Defog. - Defogger DEFI - Digital Electronic Fuel Injection DERM - Diagnostic Energy Reserve Module DFI - Digital Fuel Injection DFS - Deceleration Fuel Shutoff Diag. - Diagnostic DIC - Driver Information Center DIS - Distributorless Ignition System DIST - Distribution DLC - Data Link Connector DMM - Digital Multi Meter DOHC - Double Overhead Cam DTC - Diagnostic Trouble Code DOT - Department of Transportation DRB-II - Diagnostic Readout Box DVOM - Digital Volt-Ohmmeter Auto Term Beginning with "E" EACV - Electronic Air Control Valve EBCM - Electronic Brake Control Module EBL - Electronic Back Light EBM - Electronic Body Module ECA - Electronic Control Assembly ECM - Engine Control Module ECT - Engine Coolant Temperature ECU - Electronic Control Unit EDIS - Electronic Distributorless Ignition System EEC - Electronic Engine Control EECS - Evaporative Emission Control System EEPROM - Electronically Erasable Programmable Read Only Memory EFC - Electronic Fuel Control EFCA - Electronic Fuel Control Assembly EFE - Early Fuel Evaporation EFI - Electronic Fuel Injection EGO - Exhaust Gas Oxygen Sensor EGR - Exhaust Gas Recirculation EGRPS - EGR Valve Position Sensor EGRT - EGR Temperature EGT - Exhaust Gas Temperature EI - Electronic Ignition EMI - Electromagnetic Interference EMR - Electronic Module Retard EOS - Exhaust Oxygen Sensor EOBD - European Onboard Diagnostics EPOS - EGR Valve Position Sensor EPROM - Erasable Programmable Read Only Memory ESA - Electronic Spark Advance ESC - Electronic Spark Control EST - Electronic Spark Timing ETC - Electronic Throttle Control EVAP - Evaporative Emission System EVIC - Electronic Vehicle Information Center EVP - EGR Valve Position Auto Term Beginning with "F" F - Fahrenheit F/B - Fuse Block FCS - Fuel Control Solenoid Fed - Federal FDC - Fuel Deceleration Valve FI - Fuel Injection FIPL - Fuel Injector Pump Lever FPR-VSV - Fuel Pressure Regulator Vacuum Switching Valve FLS - Fluid Level Sensor ft.lb. - Foot Pound FWD - Front-Wheel Drive Auto Term Beginning with "G" G - Grams GALS - Gallon GDI - Gasoline Direct Injection GEN - Generator GND or GRND - Ground GPS - Global Positioning System GVW - Gross Vehicle Weight Auto Term Beginning with "H" H20 - Water HAC - High Altitude Compensation HC - Hydrocarbons H/D - Heavy Duty HEGO - Heated Exhaust Gas Oxygen Sensor HEI - High Energy Ignition Hg - Mercury HGT - Height HLDT - Headlight HO - High Output HO2S - Heated Oxygen Sensor HP - High Performance or Horsepower HSC - High Swirl Combustion HSO - High Specific Output HT - High Tension HTR - Heater Hz - Hertz(Cycles Per Second) Auto Term Beginning with "I" IACV - Idle Air Control Valve IAT - Intake Air Temperature IATS - Intake Air Temperature Sensor IC - Integrated Circuit ICM - Ignition Control Module ICS - Idle Control Solenoid I.D. - Inside Diameter ID - Identification IFI - Indirect Fuel Injection IGN - Ignition In. - Inches Inch Lbs. - Inch Pounds in. Hg - Inches of Mercury Inj. - Injector IMRC - Intake Manifold Runner Control IP - Instrument Panel (also see below) IP - Injector Pump (diesel applications) ISC - Idle Speed Control ISO - International Standards Organization ITCS - Ignition Timing Control System ITS - Idle Tracking Switch IVSV - Idle Vacuum Switching Valve Auto Term Beginning with "J" JAS - Jet Air System J/B - Junction Block Auto Term Beginning with "K" k/ohms - kilo-ohms (1000 ohms) kg - kilograms (weight) kg/cm - Kilograms Per Square Centimeter kHz - Kilohertz Km - Kilometers KM/H - Kilometers Per Hour KOEC - Key On, Engine Cranking KOEO - Key On, Engine Off KOER - Key On, Engine Running kPa - kilopascals KS - Knock Sensor kV - Kilovolt kW - Kilowatt Auto Term Beginning with "L" L - Liter lbs. - Pounds lb./ft. - Pound Feet LCD - Liquid Crystal Display L/D - Light Duty LED - Light Emitting Diode LHD - Left-Hand Drive LTFT - Long Term Fuel Trim LWB - Long Wheel-Base Auto Term Beginning with "M" mA - Milliamps MA/MAF - Mass Air Flow MAFS - Mass Air Flow Sensor MAP - Manifold Absolute Pressure MAT - Manifold Air Temperature MCS - Mixture Control Solenoid MCT - Manifold Charge Temperature Mem. - Memory MEM/CAL - Memory Calibration Chip mfd. - Microfarads MFI - Multiport Fuel Injection MIL - Malfunction Indicator Light mm - Millimeters MPG - Miles Per Gallon MPH - Miles Per Hour MPI - Multi-Point (Fuel) Injection MPV - Multi-Purpose Vehicle ms - Millisecond mV - Millivolts Auto Term Beginning with "N" NA - Not Available NBO2 - Narrow Band Oxygen Sensor NGC - New Generation Controller NGS - New Generation Star N.m - Newton Meter No. - Number Nos. - Numbers NOx - Oxides of Nitrogen NVRAM - Nonvolatile Random Access Memory Auto Term Beginning with "O" O2 - Oxygen O2S - Oxygen Sensor OBD - On-board Diagnostics OBD I - On-board Diagnostics One OBD II - On-board Diagnostics Two OBD III - On-board Diagnostics Three OC - Oxidation Catalyst OD - Overdrive O.D. - Outside Diameter OE - Original Equipment OEM - Original Equipment Manufacturer OHC - Over Head Camshaft OHV - Over Head Valve O/S - Oversize OS - Oxygen Sensor oz. - Ounce ozs. - Ounces Auto Term Beginning with "P" P - Park P/B - Power Bakes P/C - Printed Circuit P/N - Part Number PA - Pressure Air PAS - Power-Assisted Steering PCM - Powertrain Control Module PCS/PC/SOL - Purge Control Solenoid PCV - Positive Crankcase Ventilation PECV - Power Enrichment Control Valve PFI - Port Fuel Injection PGM-FI - Programmed Fuel Injection PID - Parameter Identification PIP - Profile ignition pick-up PNP - Park Neutral Position Switch P/N - Park/Neutral PPM - Parts Per Million PRNDL - Park Reverse Neutral Drive Low PROM - Program Read Only Memory (chip) P/S - Power Steering PSI - Pounds Per Square Inch PSP - Power Steering Pressure PSPS - Power Steering Pressure Switch pts. - Pints Pwr. - Power PWR - Power to Weight Ratio Auto Term Beginning with "R" R/A - Resume or Accelerate RAC - Remote Accessory Controller RAM - Random Access Memory RAM - Ride Air Module RAM - Remote Anti-theft Module RAP - Retained Access Power RAV - Remote Activation Verification RBC - Rotary Blade Coupling RCC - Rear Climate Control RCC - Remote Climate Control RCM - Restraint Control Module RDM - Rear Door Module RDS - Radio Display System REC - Receive RECAL - Recalibrate RECIRC - Recirculation RF - Radio Frequency RF - Right Front RFA - Remote Function Actuator RFF - Roller Finger Followers RFI - Radio Frequency Interference RFID - Radio Frequency Identification RFWS - Right Front Wheel Speed RH - Right Hand RIM - Radio Interface Module RIM - Rear Integration Module RKE - Remote Keyless Entry Rly - Relay RM - Relay Module ROM - Read Only Memory RPM - Revolutions Per Minute RPO - Regular Production Option R&R - Remove and Replace RR - Right Rear RSA - Rear Seat Audio RSC - Roll Stability Control RSS - Road Sensing Suspension R/T - Road/Track RT - Right RTD - Real Time Dampening RTN - Return RV - Recreational Vehicle RWAL - Rear Wheel Anti-lock RWD - Rear Wheel Drive RWS - Rear Wheel Steer Auto Term Beginning with "S" SBC - Single Bed Converter SBD - Strategy Base Diagnostics SC - Supercharged SEFI - Sequential Electronic Fuel Injection SES - Service Engine Soon SFI - Sequential Fuel Injection SIR - Supplemental Inflatable Restraint SIPS - Side Impact Protection System SOHC - Single Overhead Cam SPFI - Sequential Port Fuel Injection SPOUT - Spark Output SPK - Spark Control SOL/Sol. - Solenoid SRI - Service Reminder Indicator SRS - Secondary Restraint System SRS - Supplemental Restraint System SSI - Solid State Ignition STAR - Self-Test Automatic Readout STFT - Short Term Fuel Trim STO - Self-Test Output Sw. - Switch SWB - Short Wheel-Base Sys. - System Auto Term Beginning with "T" TACH - Tachometer TBI - Throttle Body Injection TCC - Torque Converter Clutch TCM - Transmission or Transaxle Control Module TCS - Traction control solenoid TD - Turbo Diesel TDC - Top Dead Center TDI - Turbo Direct Injection Temp. - Temperature THERMAC - Thermostatic Air Cleaner TIV - Thermactor Idle Vacuum Valve TKS - Throttle Kicker Solenoid TPI - Tuned Port Injection TPP - Throttle Position Potentiometer TPS - Throttle Position Sensor/Switch TPT - Throttle Position Transducer TS - Temperature Sensor TSP - Throttle Solenoid Positioner TV - Throttle Valve TV - Thermovalve TVS - Thermal Vacuum Switch TWC - Three Way Catalyst Auto Term Beginning with "V" Vac. - Vacuum VAF - Vane Airflow VAPS - Variable Assist Power Steering VCC - Viscous Converter Clutch VCRM - Variable Control Relay Module VIN - Vehicle Identification Number VM - Vacuum Modulator VOLT. - Voltage VOM - Volt/Ohmmeter VRV - Vacuum Regulator Valve VSS - Vehicle Speed Sensor VSV - Vacuum Switching Valve VVC - Variable Valve Control VVT - Variable Valve Timing Auto Term Beginning with "W" W/ - With WB02 - Wide Band Oxygen Sensor W/O - Without WAC - Wide Open Throttle A/C Switch WOT - Wide Open Throttle

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