--- title: "Automotive Acronyms and Abbreviations" slug: automotive-acronyms-and-abbreviations collection: posts date: 2020-08-15T11:08:12 modified: 2024-06-24T12:12:27 url: https://fixmycar.pk/articles/automotive-acronyms-and-abbreviations/ --- ## **Automotive Acronyms and Abbreviations** ### **List of Popular** **Automotive Acronyms and Abbreviations** **used in Vehicles** ABS Antilock Brake System ABSV  Air Bypass Solenoid Valve (Mazda) ABV  Air Bypass Valve AC Alternating Current ACC Air Conditioning Clutch ACC  Automatic Climate Control ACCS  A/C Cycling Clutch Switch ACD  Air Conditioning Demand Switch ACL  Air Cleaner (Thermostatic Type) ACM  Air Bag Control Module ACON  Air Conditioning On Signal ACP  Air Conditioning Pressure Signal ACPSW  Air Conditioning Pressure Switch ACR  Air Conditioning Relay ACR4  Air Conditioning Refrigerant, Recovery, Recycling, Recharging ACT  Air Charge Temperature ACTS  Air Charge Temperature Sensor ADS  Auxiliary Discriminating Sensor ACV  Air Control Valve ADU  Analog Digital Unit AECM  Air Bag Electronic Control Module AFC  Air Flow Control AFM  Air Flow Meter AFM  Air Flow Meter AFR  Air Fuel Ratio AFS  Air Flow Sensor AIR (Secondary Air Injection System) Air Injection Reactor AIRB  Secondary Air Injection Bypass AIRD  Secondary Air Injection Diverter AIS  Automatic Idle Speed AIV  Air Injection Valve ALC  Automatic Level Control ALCL  Assembly Line Communications Link (GM) ALDL  Assembly Line Data Link ALT  Alternator (replaced with GEN) AM1  Air Management 1, AIR Bypass AM2  Air Management 2, AIR Diverter AMB  Ambient AOD  Automatic Overdrive AODE  Automatic Overdrive Electronic Transmission AODE-W  Automatic Overdrive Electronic Wide (ratio transmission) AP  Accelerator Pedal APC  Automatic Performance Control APP  Accelerator Pedal Position APS  Absolute Pressure Sensor APS  Atmospheric Pressure Sensor APT  Adjustable part Throttle ARS  Automatic Restraint System ASARC  Air Suspension Automatic Ride Control ASD  Automatic Shutdown Relay ASDM  Airbag System Diagnostic Module ASE  Automotive Service Excellence ASM  Acceleration Simulation Mode ASR  Automatic Slip Regulation ATC  Automatic Temperature Control ATDC  After Top Dead Centre ATF  Automatic Transmission Fluid ATM  Actuator Test Mode ATS  Air Temperature Sensor ATX  Automatic Transaxle AVOM  Analog Volt / Ohm Meter AWD  All Wheel Drive AX4S  Automatic 4 Speed Trans. AXOD  Automatic Overdrive Transaxle AXOD-E  Automatic Overdrive Transaxle –  Electronically Controlled ## B B/MAP  Barometric/Manifold Absolute Pressure B+  Battery Positive Voltage BAC  Bypass Air Control Valve BAP  Barometric Atmosphere Pressure BARO  Barometric Pressure BAT  Battery BBDC Before bottom dead centre BBL  Barrel BC  Blower Control BCM  Body Control Module BDC bottom dead centre BHP  Brake Horse Power BHS  Bimetal Heat Sensor (Ford) BID  Breaker less Inductive Discharge (AMC) BLM  Block Learn Multiplier (replaced with LT FUEL TRIM) BMAP  Barometric/Manifold Absolute Pressure Sensor BOB  Breakout Box BOO  Brake On / Off Switch BP  Barometric Pressure BPA  Mechanical Bypass Air BPCSV  Bypass Control Solenoid Valve BPP  Brake Pedal Position BPS  Back Pressure Sensor BPT  Back Pressure Transducer BPV  Bypass Valve (Ford) BPW  Brake Pulse Width BSV  Backfire Suppressor (Ford) BTDC  Before Top Dead Center BTS  Battery Temperature Sensor BTSI  Brake Transmission Shift Interlock BTU  British Thermal Unit BUS N  Bus Negative BUS P  Positive Bus BV  Bowl Vent Port (Ford) BVSV  Bi-Metal Vent Control Valve BVT Backpressure Variable Transducer ## C  [](http://autoditex.com/Acronyms/index.html#n) C  Carbon C  Celsius C.A.R.B.  California Air Resource Board C3I  Computer Controlled Coil Ignition CAC  CAC (Charge Air Cooler) After Cooler Charge Air Cooler Inter Cooler CALPAK  Calibration Pack CAN  Controller Area Network CANP  Canister Purge Solenoid Valve EVAP CARB  Carburetor CARB  California Air Resources Board CAS  Crank Angle Sensor CASE  Cranking Angle Sensing Error CAT  Catalytic Converter CBD  Closed Bowl Distributor CC  Catalytic Converter CC  Climate Control CC  Cruise Control CCA  Centre Control Assembly CCC  Computer Command Control System (GM) CCC  Converter Clutch Control Solenoid CCCI  Computer Controlled Coil Ignition CCD  Computer Controlled Dwell CCDIC  Climate Control Driver Information Centre CCECS  Computer Controlled Emission Control System CCEI  Coolant Controlled Idle Enrichment (Chrysler) CCEV  Coolant Controlled Engine Vacuum Switch (Chrysler) CCM  Central Control Module CCM  Continuous Component Monitor CCO  Converter Clutch Overdrive Solenoid CCOT  Cycling Clutch Orifice Tube CCP  Climate Control Panel CCRM  Constant Control Relay Module CCRM  Constant Control Relay Module CCS  Coast Clutch Solenoid CCSP  Carbon Canister Storage/Purge CCV  Canister Control Valve CDCV  Canister Drain Cut Valve CDI  Capacitor Discharge Ignition CDR  Chrysler Diagnostic Readout CDRV  Crankcase Depression Regulator Valve CE  Commutate End CEAB  Cold Engine Air Bleed CEC  Crankcase Emission Control System (Honda) CEC  Computerized Emission Control System CECU  Central Electronic Control Unit (Nissan) CEL  Check Engine Light CER  Cold Enrichment Rod (Ford) CES  Clutch Engage Switch CESS  Cold Engine Sensor Switch CFC  Chlorofluorocarbons CFI  Central Fuel Injection CFI  Continuous Fuel Injection CFM  Cubic Feet Per Minute CFRM  Condenser Fan Relay Module CFV  Critical Flow Venture CHM  Cold Mixture Heater CID  Cubic Inch Displacement CID  Cylinder Identification Signal CIM  Column Integration Module CIS  Continuous Injection System (Bosch) CKP  Crankshaft Position Sensor CKP REF  Crankshaft Position Reference CKT  Circuit CL  Closed Loop CLC  Converter Lockup Clutch (replaced with TCC) CLCC  Closed Loop Carburetor Control CLECS  Closed Loop Emission Control System CLFCS  Closed Loop Fuel Control System CLNT  Coolant CLV  Calculated Load Value CMFI  Central Multiport Fuel Injection CMP  Camshaft Position Sensor CMP REF  Camshaft Position Reference CMTC  Compass/Mini Trip Computer CNG  Compressed Natural Gas CO  Carbon Monoxide CO2  Carbon Dioxide COC  Conventional Oxidation Catalyst (Ford) COP  Coil On Plug Electronic Ignition CP  Canister Purge (GM) CPA  Connector Position Assurance CPI  Central Port Fuel Injection CPP  Clutch Pedal Position CPS  Central Power Supply CPSOV  Canister Purge Shut Off Valve (Ford) CPU  Central Processing Unit CRK  Cranking Signal CRT.  circuit CSC  Coolant Spark Control (Ford) CSE GND  PCM Case Ground CSF  Crankshaft Speed Fluctuation CSFI  Central Sequential Fuel Injection CSSA  Cold Start Spark Advance System (Ford) CSSH  Cold Start Spark Hold System (Ford) CTAV  Cold Temperature Actuated Vacuum Switch (Ford) CTM  Central Timer Module CTO  Clean Tachometer Output CTOX  Continuous Trap Oxidizer CTP  Closed Throttle Position CTS  Coolant Temperature Sensor CTVS  Choke Thermal Vacuum Switch CV  Constant Velocity CV  Control Valve CVCC  Compound Vortex Controlled Combustion System (Honda) CVR  Control Vacuum Regulator (Ford) CVS  Constant Volume Sampler CVVT  Continuous Variable Valve Timing ## D  [](http://autoditex.com/Acronyms/index.html#n) DAB  Delayed Accessory Bus dB  Decibels DBW Drive-By-Wire DC  Direct Current DC  Duty Cycle DCISCA  DC Motor Idle Speed Actuator DCL  Data Communication Link DDL  Diagnostic Data Link DEC  Digital Electronic Controller DEC  Diesel Engine Control DEFI  Digital Electronic Fuel Injection DEPS  Digital Engine Position Sensor DERM  Diagnostic Energy Reserve Module DFCO  Diesel Fuel Cut-off Mode DFI  Direct Fuel Injection DFS  Deceleration Fuel Shut-off DI  Direct Ignition DIC  Driver Information Center DICM  Distributor Ignition Control Module DIS  Distributorless Ignition System DLC  Data Link Connector DM  Drive Motor DMCM  Drive Motor Control Module DMCT  Drive Motor Coolant Temperature DME  Digital Motor Electronics DMIVA  Distributor Mounted Ignition Vacuum Advance DMPI Module  Drive Motor Power Inverter Module DMS  Distributor Modulator System DOHC  Double Overhead Camshaft DOL  Data Output Line to IPC DPC  Dynamic Pressure Control DPF  Diesel Particulate Filter DPFE  Differential Pressure Feedback EGR DPI  Dual Plug Ignition DRB  Diagnostic Readout Box DRCV  Distributor Retard Control Valve DRL  Daytime Running Lights DSAS  Deceleration Spark Advance System DSO  Digital Storage Oscilloscope DSR  Ford Diagnostic Subroutine DSS  Downshift Solenoid DSSA  Dual Signal Spark Advance (Ford) DSV  Deceleration Solenoid Valve DTC  Diagnostic Trouble Code DTC FRZ  Diagnostic Trouble Code Freeze Frame DTM  Diagnostic Test Mode DTVS  Dual Temperature Vacuum Switch DV  Delay Valve DVAC  Distributor Vacuum Advance Control Valve DVDSV  Differential Vacuum Delay and Separator Valve DVOM  Digital Volt Ohmmeter DV TW- Relay Valve Two Way DVVV  Distributor Vacuum Vent Valve ## E  [](http://autoditex.com/Acronyms/index.html#n) EEPROM  Electrically Erasable Programmable Read Only Memory E4OD  Electronic 4-Speed Overdrive EAC  Electronic Air Control (replaced with AIR) EACV  Electronic Air Control Valve EAIR  Electronic Secondary Air Injection EAT  Electronically Controlled Automatic Transaxle Or Transmission EBCM  Electronic Brake Control Module EBL  Electric Back Lite (Rear Window Defroster) EBM  Electronic Body Module EBP  Exhaust Back :Pressure EBTCM  Electronic Brake T/C Module EC  Engine Control ECA  Electronic Control Assembly ECC  Electronic Climate Control ECCS  Electronic Concentrated Control System ECI  Extended Compressor at Idle ECIT  Electronic Control Ignition Timing ECITS  Electronic Control Ignition Timing System ECL  Engine Coolant Level ECM  Engine Control Module ECS  Emission Control System ECT  Engine Coolant Temperature ECU  Electronic Control Unit EDF  Electro Drive Fan EDFI  Electronic Diesel Fuel Injection EDI  Electronic Controlled Direct Ignition System EDIS  Electronic Distributorless Ignition System EDL  Engine Data Line EDM  Electronic Distributor Modulator (Ford) EEC  Electronic Engine Control (Ford) EECS  Evaporative Emission Control System EEGR  Electronic EGR (Solenoid) EEGR Monitor  Electronic EGR Test EEPROM  Electronically Erasable Programmable Read Only Memory EESS  Evaporative Emission Shed System (Ford) EET  Electronic EGR Transducer EEVIR  Evaporator Equalized Values in Receiver EFC  Electronic Fuel Control EFCA  Electronic Fuel Control Assembly EFE  Early Fuel Evaporation EFI  Electronic Fuel Injection EFT  Engine Fuel Temperature EFV  Early Fuel Evaporation EGC  Exhaust Gas Check Valve EGO  Exhaust Gas Oxygen Sensor EGR  Exhaust Gas Recirculation EGR Monitor  OBDII EGR Test EGR TVV  Exhaust Gas Recirculation Thermal Vacuum Valve EGRB  EGR Boost Sensor EGRC  EGR Control Solenoid (Ford) EGRC-BPT  EGR Control Back Pressure Transducer EGRPS  EGR Valve Position Sensor EGRT  Exhaust Gas Recirculation Temperature EGRV  Exhaust Gas Recirculation Vent Solenoid EH  Electro Hydraulic EI  Integrated Electronic Ignition System ELC  Electronic Level Control ELCD  Evaporative Loss Control Device EM  Engine Modification EMB  Electromagnetic Brakes EMF  Electromagnetic Field EMI  Electromagnetic Interference EMR  Electronic Module Retard EOBD  European On Board Diagnostics EOP  Engine Oil Pressure EOS  Exhaust Oxygen Sensor EOT  Engine Oil Temperature EP  Exhaust Pressure EPA  Environmental Protection Agency EPC  Electronic Pressure Control EPOS  EGR Valve Position Sensor EPROM  Erasable Programmable Read Only Memory EPT  EGR Pressure Transducer (replaced with PFE) ESA  Electronic Spark Advance (Chrysler) ESC  Electronic Spark Control System ESD  Electrostatic Discharge ESS  Engine Speed Sensor EST  Electronic Spark Timing ETC  Electronic Temperature Control ETP  EGR Pressure Transducer ETR  Electronically Tuned Receiver EVAP  Evaporative Emissions System EVAP CP  Evaporative Canister Purge EVAP CV  Evaporative Emissions System Canister Vent EVIC  Electronic Vehicle Information Center EVO  Electronic Vehicle Orifice EVP  EGR Valve Position Sensor EVR  EGR Vacuum Regulator EVSV  Electronic Vacuum Switching Valve EWL  Engine Warning Lamp ## F  [](http://autoditex.com/Acronyms/index.html#n) F  Fahrenheit F4WD  Full Time Four Wheel Drive FAN  Cooling Fan (Low or High Speed) FBC  Feedback Carburetor FBCA  Feedback Carburetor Actuator FC  Fan Control FCA  Fuel Control Assembly (Chrysler) FCS  Fuel Control Solenoid FDBK  Feedback FDC  Fuel Deceleration Valve FDV  Fuel Decal Valve FEEPROM  Flash Electronically Erasable Programmable Read Only Memory FF  Flexible Fuel FI  Fuel Injector FIC  Fast Idle Control FICD  Fast Idle Control Device FIPL  Fuel Injection Pump Lever FLC  Fluid Lock-up Converter (Ford) FLS  Fluid Level Sensor FM  Fan Motor Program in PCM FMEM  Failure Mode Effect Management FOM  Fix Operating Mode (Limp Mode) FP  Fuel Pump FPCM  Fuel Injection Pump Control Module FPM  Fuel Pump Monitor (in PCM) FPRC  Fuel Pump Regulator Control FRP  Fuel Rail Pressure FRT  Fuel Rail Temperature FRZ  Freeze Frame FT  Fuel Trim; Adaptive Fuel Strategy ft.lb.  Foot Pound FTL  Fuel Tank Level Sensor FTO  Filtered Tachometer Output FTP  Fuel Tank Pressure FTT  Fuel Tank Temperature FWD  Front Wheel Drive ## G  [](http://autoditex.com/Acronyms/index.html#n) g/sec  Grams per Second GAL  Gallon GCM  Governor Control Module GCW  Gross Combination Weight GDC  Fuel Data Centre GDI  Gasoline Direct Injection GEM  Generic Electronic Module GND  Electrical Ground Connection GPC  Glow Plug Control GPL  Glow Plug Wait Lamp GPM  Grams Per Mile GPR  Glow Plug Relay GPS  Global Positioning System GST  Generic Scan Tool GVW  Gross Vehicle Weight GVWR  Gross Vehicle Weight Rating **Abbreviations Used by Toyota / Lexus** ## A AC Alternating Current ACC Accessory ACM Active Control Engine Mount System ACM Active Control Engine ACIS Acoustic Control Induction System ACSD Automatic Cold Start Device ACV Air Control Valve (ACIS) ADD Automatic Disconnecting Differential A/F Air/Fuel Ratio AHC Active Height Control Suspension ALR/ELR Automatic Locking Retractor/Emergency Locking Retractor ALT Alternator AMP Amplifier ANT Antenna ASL Automatic Sound Levelizer ASV Air Switching Valve (Actuator) AT Automatic Transmission (Transaxle) ATF Automatic transmission Fluid AT/PZEV Advanced Technology Partial Zero Emission Vehicle AUTO Automatic AUX Auxiliary AVC-LAN Audio Visual Communication – Local Area Network AVG Average AVS Adaptive variable Suspension ## B BA Brake BACS Boost Altitude Compensation System BAT Battery BDC Bottom Dead Center BEAMS Breakthrough Engine with Advanced Mechanism System BEAN Body Electronics Area Network B/L Bi-Level / Bluetooth B/S Bore-Stroke BTDC Before Top Dead Center BVSV Bimetallic Vacuum Switching Valve ## C CB Circuit Breaker C-BEST Customized Body Electronics System CCo Catalytic Converter for Oxidation CCS Cruise Control System CCV Canister Closed Valve CD Compact Disk Cd Coefficient of drag CF Cornering Force CG Center of Gravity CH Channel CHMSL Center high-mount stop lamp CLV Calculated Load Value COMB. Combination CPE Coupe CPS Combustion Pressure Sensor CRS Child Restraint System CTR Center C/V Check Valve CV Control Valve CVN Software Calibration Verification Number or Calibration Verification Number CVT Continuously Variable Transmission CW Curb Wight ## D DAC Downhill Assist Control D-CAT Diesel Clean Advanced Technology DCNI Data Communication Network Interface DFL Deflector DIFF. Differential DIFF. Lock Differential Lock D/INJ Direct Injection DLI Distributorless Ignition DOHC Double Over Head Cam DP Dash Pot DPNR Diesel PM and NOx Reduction DRL Daytime running lights DS Dead Soak DSP Digital Signal Processor ## E EBD Electronic Brake Force Distribution ECAM Engine Control and Measurement System ECB Electronically Controlled Braking System ECD Electronic Controlled Diesel ECDY Eddy Current Dynamometer ECU Electronic Control Unit ECT-i Electronically Controlled Transmission with intelligence (5-speed) ED Electro-deposited Coating EDIC Electric Diesel Injection Control EDU Electronic Driving Unit EFI Electronic Fuel Injection E/G Engine EGR/VM EGR Vacuum Modulator ELR Emergency Locking Retractor ESA Electronic Spark Advance ETCS Electronic Throttle Control System ETCS-i Electronic Throttle Control System – intelligent ETR Electronically Tuned Radio EVP Evaporator EV-RV Electric Vacuum regulating Valve ## F FCHV Fuel Cell Hybrid Vehicle FE Fuel Economy FF Front-Engine Front-Wheel-Drive F/G Fuel Gauge FIPG Formed in Place Gasket FL Fusible Link F/P Fuel Pump FPU Fuel Pressure Up Fr Front FT Fuel Trim F/W Flywheel FW/D Flywheel Damper FWD Front-Wheel-Drive ## G GBS VIP Glass Breakage Sensor GND Ground GPS Global Positioning System ## H HAC Gross Vehicle Weight Rating HB Hatchback HCAC Hydrocarbon Adsorber Catalyst system HI High HID High Intensity Discharge (Head Lamp) HSG Housing HSEA High Solar Energy-Absorbing HT Hard Top HWS Heated Windshield System ## I IAC Idle Air Control IC Integrated IDI Indirect Diesel Injection IFS Independent Front Suspension IGBT Semiconductor Switching Device IIA Integrated Ignition Assembly IN Intake (Manifold, Valve) INT Intermittent I/P Instrumental Panel IRS Independent Rear Suspension ## J J/B Junction Block J/C Junction Connector ## K KD Kick-Down ## L LATCH Lower anchors and top tether brackets LB Liftback LHD Left-Hand Drive LLC Long-Life Coolant LSD Limited Slip Differential LSP and BV Load Sensing Proportion and Bypass Valve LSPV Load Sensing Proportion Valve ## M MAINT. Engine Oil replacement Reminder Light MIL Malfunction Indicator Lamp MP Multipurpose MPS Multiplex communication System MSRP Manufacturer’s Suggested Retail Price M/T Manual Transmission MT Mount MTG Mounting ## N NA Natural Aspiration NVS Night View System ## O OCV Oil Control Valce(VVT-i) O/D Over Drive OEM Original Equipement Manufacturing OHC Overhead Camshaft OPT Option O/S Over Size ## P P and BV Proportioning and Bypass Valve PCS Power Control System PCV Positive Crankcase Ventilation PDS Pre-Delivery Service PKV Parking Brake PPS Progressive Power Steering PS Power Steering PSD Power-split Device PTO Power Take-OFF ## R R and P Rack and Pinion R/B Relay Block RBS Reticulating Bal Type Steering RDS Radio Broadcast Data Sysem R/F Reinforcement RFS Rigid Front Suspension RHD Right Hand Drive RLY Relay Rr Rear RR Rear-Engine Rear Wheel Drive RRS Rigid Rear Suspension RWD Rear Wheel Drive ## S SEN Sensor SICS Starting Injection Control System SOC State of Charge SOHC Single Overhead Camshaft SPI Single Point Injection SRS Supplemental Restraint System SSM Special Service Material SST Special Service Tools STJ Cold-Start Fuel Injection SULEV Super Ultra Low Emission Vehicle ## T T/A Transaxle TACH Tachometer TBI Throttle Body Electronic Fuel Injection TC Turbocharger TCCS Toyota Computer Controlled System TCV Timing Control Valve TDC Top Dead Center TDI Toyota Direct Ignition TEMS Toyota Electronic Modulated Suspension TFS Toyota Financial Services THS Toyota Hybrid System THS II Toyota Hybrid System 2tr TID Test Identification Data TIS Total Information System for Vehicle Development TMC Toyota Motor Corporation TMMK. Toyota Motor Manufacturing Kentucky, Inc. TRAC Traction Control System ## U UART Universal Asynchronous Receiver Transmitter U/D Under Drive U/S Under Size ## V VCV Vacuum Control VGRS Variable Gear Ratio Steering VIN Vehicle Identification Number VIP Toyota Vehicle Intrusion Protection VPS Variable Power Steering VSC Vehicle Skid Control aka Vehicle Stability Control VVT-i Variable Valve Timing with intelligence VVTL-i Variable Valve Timing and Lift with intelligence VTV Vacuum Transmitting Valve W/H Wire Harness 2WD Two Wheel Drive Vehicle (4×2) 4WD Four Wheel Drive Vehicle (4×4) ### Best Automotive Workshop Fixmycar.pk is considered the best automotive workshop in twin cities when it comes to hybrid system vehicles. We can reprogram the ECU for almost any vehicle for performance upgrades, and reset the [P0420](/p0430-and-p0420/) data P0400 [EGR errors](/about-us/). 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