Don’t know your SOHC from your socks? This page is a quick lookup and reference guide for all those acronyms and abbreviations that you’ll find around the car industry. These can be used in specifications, sales brochures, warning lights – anywhere.
| 2V | Two (Venturi) Valve (two barrel carburetor) | KAM | Keep Alive Memory |
| 2v | Two Valve (cylinder head) | KAPWR | Keep Alive Power |
| 2WS | Two Wheel Steer | KDD | Keyboard Display Driver |
| 4EAT | Four Speed Electronic Automatic Transmission | kg | Kilogram |
| 4V | Four (Venturi) Valve (four barrel carburetor) | kg/h | Kilograms per Hour |
| 4v | Four Valve (cylinder head) | kHz | Kilohertz |
| 4WAS | Four Wheel Air Suspension | km | Kilometer |
| 4WD | Four Wheel Drive | km/h | Kilometres per hour |
| 4WS | Four Wheel Steer | km/l | Kilometres per litre |
| 12v | 12 Volt (Electrical System) | KOEO | Key On Engine Off |
| 16v | Sixteen valve (cylinder head) | KOER | Key On Engine Running |
| AAT | Ambient Air Temperature | kPa | Kilopascal |
| ABC | Active Body Control | KS | Knock Sensor |
| ABS | Antilock Braking System | KS1 V | Knock Sensor Input Bank 1 VOLTS |
| A/C | Air Conditioning | KS2 V | Knock Sensor Input Bank 2 VOLTS |
| ACC | Adaptive Cruise Control | kV | Kilovolts |
| ACC | Automatic Climate Control | L | Liter(s) |
| Accel | Acceleration | L4 | Four Cylinder Inline Engine |
| Accum | Accumulator | Latch | Lower Anchors and Tethers for Children |
| accy | Accessory | LB | Long Box, Long Bed |
| ACE | Active Cornering Enhancement | LCD | Liquid Crystal Diode (as in LCD display) |
| ACL | Air Cleaner | LCM | Lighting Control Module |
| ACM | Airbag Control Module | LDAS | Lane Departure Avoidance System |
| ACM | Audio Control Module | LDCL | Left Door Control Locking |
| ACT | Air Charge Temperature | LDCM |
Left Door Control Module |
| ADAS | Advanced Driver Assistance System | LDDT |
Light Duty Diesel Truck |
| ADC | Automatic Distance Control | LDGT |
Light Duty Gasoline (fueled) Truck |
| ADL | Automatic Door Lock |
LDM | Lamp Driver Module |
| AECM |
Airbag Electronic Control Module |
LDP |
Leak Detection Pump |
| A/F |
Air Fuel Ratio (see also AFR) |
LDR | Low Data Rate |
| AFC |
Air Flow Control |
lduty |
Light Duty |
| AFC |
Air Fuel Control |
LEADER | Low Emissions Advanced Engine Range |
| AFR |
Air Fuel Ratio (see also A/F) |
LED | Light Emitting Diode |
| AGVS |
Automated Guided Vehicle System |
LEP | Light Emitting Polymer |
| AHLD | Automatic Headlamp Levelling Device |
LEV |
Low Emissions Vehicle |
| AHR | Active Head Restraint |
LF |
Left Front |
| AHS | Active Handling System |
LFC | Lamp Fault Code |
| AIS | Automatic Idle Speed |
LFC |
Low Fan Control |
| ALC | Automatic Level Control |
LFCF |
Low Speed Fan Control Fault |
| ALT |
Alternator (see also GEN) |
LFWS | Left Front Wheel Speed |
| AMM | Air Mass Meter |
LFCS |
Low Flow Cooling System |
| AMT |
Automated Manual Transmission |
LFP |
Low Fuel pump |
| AOD | Automatic Overdrive |
LGM |
Lift Gate Module |
| AOS |
Automatic Occupant Sensing |
LH |
Left Hand |
| API |
American Petroleum Institute |
LIE |
Laterally Inclined Engine |
| APO |
Accessory Power Outlets |
L/M |
Litres Per Minute |
| APP |
Accelerator Pedal Position |
lm |
Lumens |
| ARC |
Active Roll Control |
LMD | Left Mid Door |
| ARC |
Automatic Ride Control |
LNG | Liquid Natural Gas |
| ARS |
Automatic Restraint System |
LO | Low |
| ASARC |
Air Suspension Automatic Ride Control |
LOMA | Lifter Oil Manifold Assembly |
| ASCD | Auto Speed Control Device |
LONGFT1 |
Long Term Fuel Trim Bank 1 % |
| ASF | Audi Space Frame |
LONGFT2 |
Long Term Fuel Trim Bank 2 % |
| ASG |
Automatic-Shift Gearbox |
LOS |
Limited Operation Strategy |
| ASR |
Acceleration Slip Regulation |
LPA | Low Pressure Accumulator |
| ASTC |
Automatic Stability and Traction Control |
LPG | Liquified Petroleum Gas |
| A/T |
Automatic Transmission |
LPM |
Litres Per Minute |
| ATC |
Automatic Temperature Control |
LPO |
Limited Production Option |
| ATDC |
After Top Dead Center |
LPS |
Low Pressure Sensor |
| ATF |
Active Transfer Case |
LR | Left Rear |
| ATF |
Automatic Transfer Case |
LR |
Loaded Radius |
| ATF |
Automatic Transmission Fluid |
LRA |
Latching Rocker Arm |
| ATSLC | Automatic Transmission Shift Lock Control |
LRD |
Left Rear Door |
| ATTS |
Advanced Torque Transfer System |
lrn |
Learn |
| AWD |
All Wheel Drive |
LSD |
Limited Slip Differential |
| AYC |
Active Yaw Control |
LSEGR |
Linear Solenoid Exhaust Gas Recirculation |
| BARO |
Barometric (pressure) |
LSP and BV |
Load Sensing Proportioning and Bypass Valve |
| BAS | Brake Apply Sensor |
LSUV |
Luxury Sport Utility Vehicle |
| batt |
Battery |
LT |
Left |
| BBK |
Big Brake Kit |
LT | Long Term (Fuel Trim) |
| BBV |
Brake Booster Vacuum |
LTA |
Low Temperature Aftercooling |
| BCM |
Body Control Module |
LTD |
Long-Travel Dampened (clutch) |
| BHP |
Brake Horsepower |
LTPI |
Low Tyre Pressure Indicator |
| BLW |
Brake Lining Wear |
LTPWS |
Low Tyre Pressure Warning System |
| BMAP | Barometric and Manifold Absolute Pressure |
LUS |
Lock-Up Solenoid (see TCC) |
| BP |
Back Pressure |
LV8 |
Load Variable 8 Cylinder |
| BPA |
Brake Pedal Applied |
LVDT | Linear Variable Differential Transducer |
| BPA |
Bypass Air |
LVL | Level |
| BPMV |
Brake Pressure Modulator Valve |
LWB |
Long WheelBase (see LB) |
| BPP |
Brake Pedal Position |
MAF |
Mass Air Flow |
| BPW |
Base Pulse Width |
malf |
Malfunction |
| BTCM |
Brake Torque Control Module |
MALL |
Multifunction Alarm Lighting and Locking |
| BTDC |
Before Top Dead Center |
MAN |
Manufacturer |
| BTSI |
Brake Transmission Shift Interlock |
MAP |
Manifold Absolute Pressure |
| C3I | Computer Controlled Coil Ignition |
Map |
Large folded piece of colourful paper |
| CAA |
Canadian Automobile Association |
MAT |
Manifold Air Temperature |
| CAA |
Clean Air Act |
MC | Measuring Core |
| CAB | Controller, Antilock Brake |
MC |
Mixture Control |
| CAC |
Charge Air Cooler |
MCM |
Message Center Module |
| CAFC |
Company Average Fuel Consumption (Canada) |
MCNU |
Multiband Configurable Networking Units |
| CAFE |
Corporate Average Fuel Economy (USA) |
MCU |
Microprocessor Control Unit |
| CASE |
Cranking Angle Sensing Error |
MD |
Mini Disc |
| CC |
Climate Control |
MD |
Modulated Displacement |
| CC |
Coast Clutch |
MDP |
Manifold Differential Pressure |
| CC |
Cruise Control |
MDS(2) |
Mopar Diagnostic System |
| CCD |
Chrysler Collision Detection |
MDX |
Mini Disc Changer |
| CCCD |
Catalytic Converter Cool-Down |
MECS |
Mazda Electronic Control System |
| CCD |
Computer Controlled Dwell |
med | Medium |
| CCDIC | Climate Control Driver Information Center |
MEM |
Memory |
| CCFL |
Cold-Cathode Flourescent Lamp |
MEMCAL |
Memory Calibration |
| CCM | Central Control Module |
MFC |
Medium Speed Fan Control ON/OFF |
| CCM |
Chassis Control Module |
MFCF |
Medium Speed Fan Control Fault YES/NO |
| CCP |
Climate Control Panel |
MFI |
Multiport Fuel Injection |
| CCS |
Climate Controlled Seat |
MFI |
Multi Function Indicator |
| CCS |
Coast Clutch Solenoid |
MGMT |
Management |
| CDA |
Cylinder De-Activation |
MIC |
Mechanical Instrument Cluster |
| CDR |
Chrysler Diagnostic Readout |
MID |
Midrange |
| CDR | Crash Data Retrieval |
MID |
Monitor Identification |
| CDRV |
Crankcase Depression Regulator Valve |
MIL |
Malfunction Indicator Lamp |
| CEL |
Check Engine Light (see also MIL) |
MIN |
Minimum |
| CEAB |
Cold Engine Air Bleed |
MIN |
Minute |
| CEMS |
Catalyst Efficiency Management System |
MIN | Mobile Identification Number |
| CEMS | Carbureted Engine Management System |
MIP |
Mixer Inlet Pressure |
| CFI |
Central Fuel Injection (replaced with TBI) |
ML |
Manual Longitudinal |
| CFI |
Continuous Fuel Injection |
MLP(s) |
Manual Lever Position (sensor) |
| cfm |
cubic feet per minute |
mm | Millimetre |
| CG |
Center of Gravity |
mm3 |
Cubic Millimetre(s) |
| CHMSL |
Center High Mounted Stop Lamp |
MMC | Manifold Mounted Converter |
| CID |
Cubic Inch Displacement |
mmhg | Millimeters of mercury |
| CID |
Cylinder Identification |
MMM |
Memory Mirror Module |
| CKP |
Crankshaft Position |
MMT | Methylcyclopentadienyl Manganese Tricarbonyl |
| CL |
Closed Loop |
mod |
Module |
| CLCC |
Closed Loop Carburetor Control |
mon | Monitor |
| CLS | Coolant Level Switch |
MPa |
Megapascal |
| CLTBI | Closed Loop Throttle Body Injection |
MPFI |
Multiport Fuel Injection |
| CLNT |
Coolant |
ms | Millisecond |
| CMC |
Compressor Motor Controller |
MSFF | Miles Since First Fail |
| cmd |
Command | MSLF | Miles Since Last Fail |
| cmdd | Commanded |
MSM |
Memory Seat Module |
| CMFI |
Central Multi-port Fuel Injection |
MSO | Mixed Signal Oscilloscope |
| CMP |
Camshaft Position |
MSRP |
Manufacturers Suggested Retail Price |
| CMVSS | Canadian Motor Vehicle Safety Standards |
MST | Manifold Surface Temperature |
| CNG |
Compressed Natural Gas |
MSVA | Magnetic Steering Variable Assist |
| CO |
Carbon Monoxide |
M/T |
Manual Transmission/Transaxle |
| CO2 |
Carbon Dioxide |
MTBE |
Methyl Tertiary Butyl Ether |
| comm |
Communication |
MTBF |
Mean Time Between Failures |
| cond |
Condition |
MTV | Manifold Tuning Valve |
| const |
Constant | MV | Megavolt |
| COP | Coil On Plug |
mV |
Millivolt |
| COP |
Computer Operating Properly |
MVLPS | Manual Valve Lever Position Sensor |
| CP | Canister Purge |
MVSA | Motor Vehicle Safety Act |
| CPC |
Camshaft Position Control |
MVSS | Motor Vehicle Safety Standards |
| CPI | Central Port Fuel Injection |
MY | Model Year |
| CPP | Clutch Pedal Position |
NAAO | North American Automotive Operations |
| CPS |
Cam Profile Switching |
NAES |
North American Export Sales |
| CPS | Childseat Postioning Sensor |
NAICC |
Navigation-Aided Intelligent Cruise Control |
| CPU | Central Processing Unit |
NATS | Nissan Anti-Theft System |
| CRR |
Cool Running Rotor |
NC | Normally Closed |
| CS | Charging System |
NCAP | New Car Assessment Program |
| CSC |
Commercial Stripped Chassis |
NDH | Navigation Display Head |
| CSFI |
Central Sequential Fuel Injection |
NEG |
Negative |
| CSI | Compression Sense Ignition |
NEU | Neutral |
| CTD | Content Theft Deterent |
NFF | No Fault Found |
| CTOX | Continuous Trap Oxidizer |
NG |
Natural Gas |
| CTP |
Closed Throttle Position (switch) |
NGS | New Generation STAR (Self Test Automatic Readout) |
| CTS |
Coolant Temperature Sensor |
NGSC |
Next Generation Speed Control |
| CV | Constant Velocity |
NGTP | Next Generation Telematics Protocol |
| CVN |
Calibration Verification Number |
NGV |
Natural Gas Vehicle |
| CVRSS |
Continuously Variable Road Sensing Suspenion |
NGV |
New Generation Vehicle |
| CVRTD |
Continuously Variable Real Time Damping |
NGVM | Natural Gas Vehicle Module |
| CVT |
Continuously Variable Transmission |
NHTSA | National Highway Traffic Safety Administration |
| CZS |
Crash Zone Sensor |
NI |
Neutral Idle |
| DAB |
Delayed Accessory Bus |
NiMH |
Nickel Metal Hydride |
| DAB |
Driver AirBag (module) |
NLGI | National Lubricating Grease Institute |
| DART |
Diagnostic And Reprogramming Tool |
N-m |
Newton Meters |
| dB |
Decibels |
NO |
Normally Open |
| dBA | decibels on A-weighted scale |
NOx |
Nitrogen Oxides |
| DBB | Dual Bed Bead |
NoVRAM |
Non Volatile Random Access Memory |
| DBM |
Dual Bed Monolith |
NPF | No Problem Found |
| DC | Direct Current |
NPTC |
National Pipe Thread Coarse |
| DC | Duty Cycle |
NPTF | National Pipe Thread Fine |
| DCCSM | Dual Climate Controlled Seat Module |
NSBU | Neutral Safety Back Up |
| DCM |
Door Control Module |
NV |
Night Vision |
| DDM |
Driver's Door Module |
NVH |
Noise, Vibration and Harshness |
| DDS | Deflation Detection System |
NVLD |
Natural Vacuum Leak Detection |
| DDS | Driver's Door Switch |
NVRAM |
Non Volatile Random Access Memory |
| DE |
Drive End |
NYCC |
New York City Cycle |
| dec |
Decrement |
O2 | Oxygen |
| DEC |
Digital Electronic Controller |
O2S | Oxygen Sensor |
| DERM |
Diagnostic Energy Reserve Module |
OAD | Overrunning Alternator Decoupler |
| des |
Desired |
OAP | Overrunning Alternator Pulley |
| DFCO |
Deceleration Fuel CutOff |
OASIS | Online Automotive Service Information System |
| DFI |
Direct Fuel Injection |
OASIS |
Organization for the Advancement of Structured Information Standards. |
| DGI | Direct Gasoline Injection |
OBD | On Board Diagnostics |
| DI | Distributor Ignition |
OBD II |
On Board Diagnostics, Generation 2 |
| DIC |
Driver Information Center |
OC |
Oxidation Catalyst Only |
| diff |
Differential |
OCC | Output Circuit Check |
| DIM |
Dashboard Integration Module |
OCR |
Oil Control Ring |
| dis |
Disable |
OCS | Occupant Classification Sensor |
| DIS | Direct (aka Distributorless) Ignition System (replaced with EI) |
OCS | Opportunity Charge Station |
| disc |
Disconnect | OD | Outside Diameter |
| DISI | Direct Injection, Spark Ignition |
OD | Overdrive |
| DIST |
Distributor |
ODM | Output Drive Module |
| DIY | Do It Yourself |
ODO | Odometer |
| DLC | Data Link Connector |
OE |
Original Equipment |
| DLC | Diamond Logic Computer |
OEM | Original Equipment Manufacturer |
| DMCM |
Driver Motor Control Module |
OHC | Overhead Camshaft |
| DMM |
Digital MultiMeter |
OL |
Open Loop |
| DMSD | Drive Motor Speed and Direction |
OLED | Organic Light Emitting Diode |
| DOHC | Double Overhead Cam |
OPR | Over Pressure Relief |
| DNR |
Dolby Noise Reduction |
ORC |
Oxidation Reduction Converter |
| DOL | Data Output Line |
ORC | Occupant Restraint Controller |
| DPFE | Differential Pressure Feedback EGR |
ORVR |
On-board Refueling Vapour Recovery |
| DPI | Dual Plug Inhibit |
OSC | Output State Check |
| DRB | Diagnostic Readout Box |
OSC | Output State Control |
| DRF |
Deactivating Roller Follower |
OSGI |
Open-Service Gateway Interface |
| DRL |
Daytime Running Lamps |
OSS |
Output Shaft Speed |
| DRR |
Digital Radio Receiver |
OTC |
Overhead Trip Computer |
| DRW | Dual Rear Wheel |
OTIS |
Overhead Travel Information System |
| DSCC |
Distance Sensing Cruise Control |
OTM |
Output Test Monitor |
| DSDA | Dual Stage Driver Airbag |
PAB |
Passenger Air Bag |
| DSG |
Direct Shift Gearbox |
PADS |
Passenger Airbag Disarm Switch |
| DSI | Dual Stage Inflator |
PAG | Polyalkylene Glycol |
| DSM |
Driver's Seat module |
PAG | (Ford) Premier Automotive Group |
| DSO |
Digital Storage Oscilloscope |
PAIR |
Pulsed Secondary Air Injection |
| DSP |
Digital Signal Process |
PASE |
PAssive Start and Entry system |
| DSPA |
Dual Stage Passenger Airbag |
PASM |
Porche Active Steering Management |
| DSRC |
Dedicated Short Range Commnication |
PASS | Passenger |
| DSS | Downshift Solenoid |
PASS | Personalized Automotive Security System |
| DSST |
Dunlop Self Supporting Tyre |
PATS | Passive Anti-Theft System |
| DTC | Diagnostic Trouble Code |
PB |
Power Brakes |
| DTM | Diagnostic Test Mode |
PC |
Pressure Control |
| DTR | Digital Transmission Range |
PCB | Printed Circuit Board |
| DTT | Diesel Transmission Technologies |
PCI |
Programmable Communications Interface |
| DVOM | Digital Volt-Ohmmeter |
PCI |
Programmable Controller Interface |
| E4OD |
Electronic 4-Speed Overdrive |
PCM |
Power Control Module |
| E10 | Ethanol 10 percent |
PCM |
Powertrain Control Module |
| E85 |
Ethanol 85 percent |
PCS |
Pre-Crash Sensor |
| EA |
Electronic Accelerator |
PCS |
Pressure Control Solenoid |
| EAC | Electronic Air Control (replaced with AIR) |
PCV |
Positive Crankcase Ventilation |
| EAIR |
Electronic (secondary) Air Injection Reaction |
PDC |
Park Distance Control |
| EAS |
Electrically Assisted Steering |
PDC | Parts Distribution Center |
| EAS | Electronic Air Switching |
PDC |
Power Distribution Center |
| EATC | Electronic Automatic Temperature Control |
PDS |
Passenger Door Switch |
| EBC |
Electronic Brake Control |
PDS |
Portable Diagnostic Software |
| EBCM |
Electronic Brake Control Module |
PDV |
Parcel Delivery Van |
| EBD |
Electronic Brake force Distribution |
PEB | Power Electronics Bay |
| EBM |
Electronic Brake Module |
PEM | Proton Electric Membrane |
| EBP |
Exhaust Back Pressure |
PEMFC | Proton Exchange Membrane Fuel Cell |
| EBTCM |
Electronic Brake and Traction Control Module |
PEP | Peripheral Expansion Port |
| EC |
Electrical Center |
PFE | Pressure Feedback EGR |
| EC | Electronic Control |
PFI | Port Fuel Injection |
| E&C |
Entertainment and Comfort |
PFM |
PDS File Manager |
| ECA | Electronic Control Assembly (replaced with PCM) |
PFS | Purge Flow Sensor |
| ECC |
Electronic Climate Control |
PHEV |
Plug-in Hybrid Electric Vehicle |
| ECD |
Electronically Controlled Deceleration |
PHT |
Parallel Hybrid Truck |
| ECI |
Extended Compressor at Idle |
PID |
Parameter Identification |
| ECL |
Engine Coolant Level |
PIM | Power Inverter Module |
| ECM |
Electronic Control Module |
PIP | Profile Ignition Pickup (replaced with CKP) |
| ECM |
Engine Control Module |
PKE |
Passive Keyless Entry |
| ECS |
Electronic Crash Sensor |
PLL |
Phase Locked Loop |
| ECS |
Emission Control System |
PM | Permanent Magnet |
| ECT |
Engine Coolant Temperature (Switch, Sensor) |
PMD |
Pump Mounted Driver |
| ECU |
Electronic Control Unit |
PMV |
Pressure Modulator Valve |
| EDF |
Electric Drive Fan (relay) |
P/N |
Part Number |
| EDIS | Electronic Direct Ignition System (replaced with EI) |
PNP |
Park/Neutral Position |
| EDR |
Event Data Recorder |
POA |
Pilot Operated Absolute |
| EDSR |
Electronic Dealer Service (Investigation) Report |
pos |
Position |
| EEC |
Electronic Engine Control |
POS |
Positive |
| EEDS |
Electric-Electronic Distribution System |
POT |
Potentiometer |
| EEPROM |
Electronically Erasable Programmable Read Only Memeory |
P-PC |
Pocket Personal Computer |
| EEVIR |
Evaporator Equalized Values In Receiver |
ppm |
Parts Per Million |
| EFE | Early Fuel Evaporation |
PPS |
Passenger Presence Sensor |
| EFI | Electronic Fuel Injection |
PRNDL |
Park Reverse Neutral Drive Low |
| EFTA |
Engine Fuel Temperature - Bank 1 Input DEGREES |
PROM | Programmable Read Only Memory |
| EFTA V |
Engine Fuel Temperature - Bank 1 Input VOLTS |
PROX |
PReferential OXidation |
| EFTB | Engine Fuel Temperature - Bank 2 Input DEGREES |
PS | Power Steering |
| EFTB V |
Engine Fuel Temperature - Bank 2 Input VOLTS |
PSA | Pressure Switch Assembly |
| EGC |
Electronic Gauge Cluster |
PSCM | Passenger Seat Control Module |
| EGO |
Exhaust Gas Oxygen (replaced with O2S) |
PSCM |
Power Steering Control Module |
| EGOG |
EGO Ground |
PSD | Power Sliding Door |
| EGR | Exhaust Gas Recirculation |
psgr |
Passenger |
| EGRBARO |
Enable Baro Read instead of EGR pressure |
psi | Pounds Per Square Inch |
| EGRC | Exhaust Gas Recirculation Control |
psia | Pounds Per Square Inch Absolute |
| EGRCMDS |
EGR Motor Commanded In Steps |
psig | Pounds Per Square Inch Gauge |
| EGRMC1 |
EGR Motor Control Output Command |
PSIR |
Passenger Supplemental Inflatable Restraint |
| EGRMC2 | EGR Motor Control Output Command |
PSM |
Passenger Seat Module |
| EGRMC3 | EGR Motor Control Output Command |
PSOM |
Programmable Speedometer/Odometer Module |
| EGBMC4 |
EGR Motor Control Output Command |
PSP |
Power Steering Pressure |
| EGRT |
Exhaust Gas Recirculation Temperature (switch) |
PSV |
Public Service Vehicle |
| EGR TVV |
Exhaust Gas Recirculation Thermal Vacuum Valve |
PTC | Pending Trouble Code |
| EGRV |
Exhaust Gas Recirculation Vent |
PTC | Positive Temperature Coefficient |
| EGRVR | EGR Valve Vacuum Control |
PTO |
Power Takeoff |
| EGTS | Exhaust Gas Temperature Switch (replaced with EGRT) |
PTOX |
Periodic Trap Oxidizer |
| EHB | Electro-Hydraulic Brake |
PTU |
Part Throttle Unlock |
| EHCU |
Electronic Hydraulic Control Unit |
PWM | Pulse Width Modulation |
| EHOC | Electrically Heated Oxidation Catalyst |
PWR | Power |
| EHPA |
Electro-Hydraulic Power Assist |
PZEV | Partial Zero Emision Vehicle |
| EHPAS | Electric Hydraulic Power Assisted Steering |
PZM | Platform Zone Module |
| EHPS | Electro-Hydraulic Power Steering |
QDM | Quad Driver Module |
| EHTWC |
Electrically Heated Three Way Catalyst |
QDR | Quality, Durability, Reliability |
| EI |
Electronic Ignition (includes Distributorless Ignition System, formerly DIS) |
QVM | Qualified Vehicle Modifier |
| ELC |
Electronic Level Control |
R/A |
Resume or Accelerate |
| EM |
Energy Management |
RABS |
Rear Antilock Brake System |
| EM | Engine Modification |
RAC | Remote Accessory Controller |
| EMAS |
Engine Management and Analysis System |
RAM | Random Access Memory |
| EMAT |
Electro-Mechanical Automatic Transmission |
RAM |
Ride Air Module |
| EMB |
Electromagnetic Brakes |
RAM | Remote Anti-theft Module |
| EMB |
Electro-Mechanical Brake |
RAP | Retained Access Power |
| EMCC |
Electronically Modulated Converter Clutch |
RAV |
Remote Activation Verification |
| EMF |
ElectroMotive Force (voltage) |
RBC | Rotary Blade Coupling |
| EMI | Electromagnetic Interference |
RCC | Rear Climate Control |
| EMR |
Electronic Module Retard |
RCC |
Remote Climate Control |
| EMR | Emission Maintenance Reminder |
RCM |
Restraint Control Module |
| EMS |
Engine Management System |
RCDLR | Remote Control Door Lock Receiver |
| EOBD |
Enhanced On-Board Diagnostics |
RDCM |
Right Door Control Module |
| EOP |
Engine Oil Pressure |
RDM |
Rear Door Module |
| EOT |
Engine Oil Temperature |
RDS | Radio (broadcast) Data System |
| EOTF |
Engine Oil Temperature Fault Detection |
RDS | Radio Display System |
| EOT V |
Engine Oil Temperature Volts |
rec |
Receive |
| EP | Exhaust Pressure |
recal |
Recalibrate, Recalibration |
| EPA |
Environmental Protection Agency |
RECIS | Remote Entry Control and Immobilizer System |
| EPACT |
Energy Policy Act |
REDOX | Reduction Oxidation Catalytic Converter |
| EPC | Electronic Pressure Control |
REEGR | Rotary Electric EGR |
| EPHS |
Electrically Powered Hydraulic Steering |
REF | Reference |
| EPR |
Exhaust Pressure Regulator |
RESC | Remote Emergency Satellite Unit |
| EPROM |
Erasable Programmable Read Only Memory |
REX | Rear Exchanger |
| EPS | Electric Power Steering |
RF |
Radio Frequency |
| EPS |
Electric Power Steering |
RF | Right Front |
| EPS | Engine Position Sensor |
RFA | Remote Function Actuator |
| EPT |
EGR Pressure Transducer (replaced with PFE) |
RFF |
Roller Finger Followers |
| ERH |
Extended Ride Height |
RFI |
Radio Frequency Interference |
| ESB |
Energy Storage Box |
RFID |
Radio Frequency Identification |
| ESB |
Expansion Spring Brake |
RFWS |
Right Front Wheel Speed |
| ESC | Electrical Systems Controller |
RH |
Right Hand |
| ESC |
Electronic Spark Control |
RIM |
Radio Interface Module |
| ESC | Electronic Suspension Control |
RIM | Rear Integration Module |
| ESC |
Extended Service Contract |
RKE |
Remote Keyless Entry |
| ESCM |
Energy Storage Control Module |
Rly | Relay |
| ESD |
Electrostatic Discharge |
RM |
Relay Module |
| ESM |
EGR System Module |
RMD |
Right Mid Door |
| ESM | Electronic Steering Module |
ROM | Read Only Memory |
| ESN |
Electronic Serial Number |
RPA | Rear Parking Assist |
| ESO |
Engine ShutOff |
RPM |
Remote Power Module |
| ESOF |
Electronic Shift On (the) Fly |
RPM |
Revolutions Per Minute |
| ESP | Electronic Stability Program |
RPO |
Regular Production Option |
| EST | Electronic Spark Timing |
R&R |
Remove and Replace |
| ETBE | Ethyl Tertiary Butyl Ether |
RR | Right Rear |
| ETC |
Electronic Temperature Control |
RRD |
Right Rear Door |
| ETC |
Electronic Throttle Control |
RSA |
Rear Seat Audio |
| ETC |
Electronic Timing Control |
RSC | Roll Stability Control |
| ETCC |
Electronic Touch Climate Control |
RSE | Roadside Equipment |
| ETR |
Electronically Tuned Receiver |
RSS | Reverse Sensing System |
| ETS |
Enhanced Traction System |
RSS |
Road Sensing Suspension |
| EUDC |
Extra-Urban Driving Cycle |
R/T |
Road/Track |
| EUDC-LP |
Extra-Urban Driving Cycle for Low Power vehicles |
RT |
Right |
| EV | Electric Vehicle |
RTC | Real-Time Clock |
| EVA | Electronic Vibration Analyzer |
RTD |
Real Time Dampening |
| EVAP |
Evaporative Emission |
RTN | Return |
| EVAPCPF | Evaporative Emissions Canister Purge Fault YES/NO |
RTT | Reconfigurable Telltale |
| EVAPCV | Evaporative Emissions Canister Purge Vent Control |
RTTP |
Rotunda Technician Tool Program |
| EVAPCVF |
Evaporative Emissions Canister Purge Vent Fault |
RTV |
Room Temperature Vulcanizing |
| EVAPPDC |
Evaporative Emissions Canister Purge Control % |
RV |
Recreational Vehicle |
| EVAPPF |
Evaporative Purge Flow Input VOLTS |
RVAC |
Rear Video/Audi/HVAC Module |
| EVIC |
Electronic Vehicle Information Center |
RVP | Reid Vapour Pressure |
| EVMV |
Electric Vapour Management Valve |
RWAL |
Rear Wheel Anti-lock |
| EVO | Electronic Variable Orifice |
RWD |
Rear Wheel Drive |
| EVP |
EGR Valve Position (sensor) |
RWS | Rear-Wheel Steer |
| EVR | EGR Vacuum Regulator |
S4WD | Selectable Four Wheel Drive |
| EVTOP |
Enhanced Tactical Vehicle Occupant Protection |
SAE |
Society of Automotive Engineers |
| EVTM |
Electrical & Vacuum Troubleshooting Manual |
SAF |
Stabilized Aluminum Foam |
| EWMA |
Exponentially Weighted Moving Average |
SAS |
Side Auxiliary Sensor |
| EXH |
Exhaust | SATC | Semi-Auto Temperature Control module |
| F4WD | Full Time Four Wheel Drive |
SAVDAS | Stand-Alone Vehicle Data Aquisition System |
| FABS |
Flexible Auto Body System |
SAW |
Spark Angle Word |
| FAF |
Fan Air Flow |
SB | Short Box, Short Bed |
| FANDC |
Variable Speed Fan Duty Cycle % |
SBDS |
Service Bay Diagnostic System |
| FANVARF |
Variable Speed Fan Output Fault |
SBEC |
Single Board Engine Controller (replaced with PCM) |
| FBC | Feedback Carburetor |
SBM |
Standard Body Module |
| FC | Fan Control |
SBS |
Supercharger Bypass Solenoid |
| FC |
Friction Curve |
SBT |
Serial Bus Traveller |
| FCM |
Front Control module |
SC |
Supercharger |
| FCP |
Fuel Cell Partnership |
SCA |
Supplemental Coolant Additive |
| FCU |
Front Control Unit |
SCB |
Supercharger Bypass |
| FCV |
Fuel Cell Vehicle |
SCCA |
Sports Car Club of America |
| FDBK |
Feedback |
SCI | Serial Communications Interface |
| FDC | Fuel Data Center |
SCIL |
Steering Column/Instrument panel Lighting |
| FEAD | Front End Accessory Drive (belt) |
SCM |
Seat Control Module |
| FED | Federal (except California) |
SCP |
Standard Corporate Protocol |
| FEDS |
Fuel Enable Data Stream |
SCS |
Side Crash Sensor |
| FEDS | Flexible Engine Diagnostic System |
SCTM |
Seatbelt Timer Control Module |
| FEIC |
Fuel Economy Integrated Counter |
SCV |
Speed Controlled Volume |
| FET |
Field Effect Transistor |
SDARS |
Satellite Digital Audio Radio System |
| FEX |
Front Exchanger |
SDL |
Serial Data Link |
| FF | Flexible Fuel |
SDM | Sensing and Diagnostic Module |
| FFCRS |
Front-Facing Child Restraint System |
SDRS | Satellite Digital Receiver System |
| FFFP |
Fuel-Flexible Fuel Processor |
SDS |
Satellite Discriminating Sensor |
| FFH | Fuel Fired Heater |
SDS | Shock Dampening System |
| FFS |
Fine-blanking and Finishing System |
SDV |
Spark Delay Valve |
| FFS |
Flexible Fuel Sensor |
SEFI | Sequential Electronic Fuel Injection (replaced with SFI) |
| FFV |
Flexible Fuel Vehicle |
SEMA |
Specialty Equipment Market Association |
| FFWS | Fuel Filter Water Separator |
SEO |
Special Equipment Option |
| FI | Fuel Injection |
SES | Service Engine Soon (replaced with MIL) |
| FICM |
Fuel Injector Control Module |
SFI | Sequential (multiport) Fuel Injection |
| FIDO |
Flame Ionization Detector Optimization |
SGCM |
Starter/Generator Control Module |
| FIM |
Fuel Indicator Module |
SHO | Super High Output |
| FIPL |
Fuel Injection Pump Lever |
SI |
System International |
| FIPT |
Fuel Inlet Pressure Test |
SIAB |
Side Impact Air Bag |
| Fl |
Front Left |
SIACM | Side Impact Air Bag Control Module |
| FLI |
Fuel Level Indicator Input percent |
SIG RTN |
Signal Return |
| FLI V |
Fuel Level Indicator Input VOLTS |
SIL | Shift Indicator Lamp |
| FLO |
Fast Light-Off |
SIR |
Supplemental Inflatable Restraint |
| flr |
Floor | SIS |
Side Impact Sensor |
| FLVV |
Fill Limit Vent Valve |
SKIM |
Sentry Key Imobilizer Module |
| FM |
Frequency Modulation |
SLB | Smart Junction Box |
| FMEM |
Failure Mode Effects Management |
SLA | Short/Long Arm suspension |
| FMVSS |
Federal Motor Vehicle Safety Standards |
SMCC |
Stepper Motor Cruise Control |
| FP |
Fuel Pump |
SMEC |
Single Module Engine Controller (replaced with PCM) |
| FPCM |
Fuel injection Pump Control Module |
SMPI |
Sequential Multi-Port Injection |
| FPDM |
Fuel Pump Driver Module |
SNSR |
Sensor |
| FPF | Fuel Pump Output Fault |
SO2 |
Sulphur Dioxide |
| FPI | Fins Per Inch |
SOC |
State Of Charge |
| FPM |
Fuel Pump Monitor |
SOD |
Side Object Detection |
| FPR |
Fuel Pump Regulator |
SOH |
State of Health |
| FPRC |
Fuel Pressure Regulator Circuit |
sol |
Solenoid |
| FPS |
Fast Pass Standard |
S/P |
Series/Parallel |
| FPSM | Fuel Pump Secondary Monitor |
SP | Splice Pack |
| FPV |
Ford Performance Vehicles |
SPD |
Speed |
| FR | Front Right |
SPI | Serial Peripheral Interface |
| FRACAS |
Failure Reporting And Corrective Action System |
SPL |
Smoke Puff Limiter |
| FRC | Forced |
SPS |
Service Programming System |
| freq | Frequency |
SPS |
Speed Signal |
| frnt | Front | SPO | Service Parts Operations |
| FRP |
Fuel Rail Pressure |
SPOUT |
Spark Output |
| FRS |
Face Recognition System |
SPRK_ACT |
Spark Advance Actual |
| FRV |
First Response Vehicle |
SPS | Service Programming System |
| FSA | Field Service Action |
SRC | Selective Ride Control |
| FSDI |
Four-Stroke, Direct Injection |
SRG | Solar-Reflective Glass |
| FSI |
Fuel Straight Injection |
SRI | Service Reminder Indicator |
| FSS |
Forward Sensing System |
SRI | Short Ram Intake |
| FSVF |
Fuel Solenoid Valve Fault |
SrPP |
Self-reinforced PolyPropylene |
| FSVM | Fuel Solenoid Valve Secondary Monitor |
SRS | Supplemental Restraint System |
| FT | Fuel Trim |
SRW | Single Rear Wheel |
| FTP | Federal Test Procedure |
SS |
Shift Solenoid |
| FTP |
Fuel Tank Pressure |
SS | Speed Signal |
| FTPT | Fuel Tank Pressure Transducer |
SSM | Suspension Steering Module |
| FUDC |
Federal Urban Driving Cycle |
SSS | Speed Sensitive Steering |
| FUELPW1 | Injector Pulse Width Bank 1 |
SSV |
Shift Solenoid Valve |
| FUELPW2 |
Injector Pulse Width Bank 2 |
ST |
Scan Tool |
| FW | Flat Wire |
ST |
Short Term (Fuel Trim) |
| fwd |
Forward |
STAR |
Self Test Automatic Readout (tester) |
| FWD | Front Wheel Drive |
STAR | Stolen Auto Recovery System |
| GA |
Gage |
STC | Snap To Connect |
| GA | Gravitational Acceleration |
STC |
Step Timing Control |
| GAWR |
Gross Axle Weight Rating |
stdby |
Standby |
| GCR | Global Concern Report |
STI | Self Test Input |
| GCW | Gross Combined Weight |
STID |
Station Identification |
| g/cyl |
Grams per Cylinder |
STL |
Service Transmission Lamp |
| GCWR |
Gross Combined Weight Rating |
STO | Self Test Output |
| GDI |
Gasoline Direct Injection |
STS | Service Technicians Society |
| GEN | Generator |
SULEV | Super Ultra Low Emission Vehicle |
| GENF |
Generator Output Fault |
SUV | Sport Utility Vehicle |
| GENFDC |
Generator Field Control Output |
SVO | Straight Vegetable Oil |
| GEM | Gasoline Engine Management |
SVS | Service Vehicle Soon |
| GEM | Generic Electronic Module |
SVT | Special Vehicle Team |
| GFS |
Generator Field Signal |
S/W |
Software |
| GGT |
Gas Guzzler Tax |
sw | Switch |
| GHG | GreenHouse Gas |
SWB | Short WheelBase (see SB) |
| GISMO | Geographic Information System, Mobile |
SWC | Steering Wheel Controls |
| GND | Ground | SWPS |
Steering Wheel Position Sensor |
| GOVN |
Governor Module |
SWS | SideWall tension Sensor |
| GPCM |
Glow Plug Control Module |
SXR | Send and Receive |
| GPS | Global Positioning System |
syn |
Synchronize |
| GS | Garage Shift |
sys | System |
| g/sec |
Grams per Second |
TAB | Thermactor Air Bypass (replaced with AIRB) |
| GTL |
Gas To Liquid |
TAC | Throttle Actuator Control |
| GVW | Gross Vehicle Weight |
TACH | Tachometer |
| GVWR | Gross Vehicle Weight Rating |
TACM | Throttle Actuator Control Module |
| H |
Hydrogen |
TAD | Thermactor Air Divert (replaced with AIRD) |
| H2DI | Hydrogen Direct Injection |
TAP |
Transmission Adaptive Pressure |
| H2O |
Water |
TAS |
Trap Alert System |
| HAST | High Accelerated Stress Test |
TB |
Throttle Body |
| HB | Hatchback |
TBC | Truck Body Controller (or Computer) |
| HBA | Hydraulic Brake Assist |
TBI |
Throttle Body Fuel Injection |
| HBU |
Hub Bearing Unit |
TC | Transmission Control |
| HC |
Hydrocarbons |
TC |
Turbocharger |
| HCCI | Homogeneous-Charge, Compression Ignition |
TCC | Torque Converter Clutch |
| HCM | Heating Control Module |
TCCS | Toyota Computer Controlled System |
| HCM | Hybrid Control Module |
TCIL |
Transmission Control Indicator Lamp |
| HCU | Hydraulic Control Unit |
TCM | Transmission Control Module |
| HCV | Heavy Commercial Vehicle |
TCS | Traction Control System |
| H/CMPR |
High Compression |
TCS |
Transmission Control Switch |
| HD |
Heavy Duty |
TDC | Top Dead Center |
| HDC |
Heavy Duty Cooling |
TDI |
Toyota Direct Ignition |
| HDGV |
Heavy Duty Gasoline-fueled Vehicle |
TED | Thermo Electric Device |
| HDR |
High Data Rate |
tele | Telescope |
| HD-UDDS |
Heavy Duty Urban Dynamometer Driving Schedule |
TEMP | Temperature |
| HEC |
Hybrid Electronic Cluster |
TFI | Thick Film Integrated (replaced with DI) |
| HEDF |
High Speed Electro Drive Fan (relay or circuit) |
TFP | Transmission Fluid Pressure |
| HEGO |
Heated Exhaust Gas Oxygen (sensor) (replaced with HO2S) |
TFT | Transmission Fluid Temperature |
| HEGOG |
HEGO Ground (circuit) |
TGS | Top Gear Switch |
| HEPS |
Hydraulic Electric Power Steering |
THEMIS | Thermal Management Intelligent System |
| HEUI | Hydraulic-actuated Electronically-controlled Unit Injector |
THM | Turbo Hydra-Matic |
| HEV |
Hybrid Electric Vehicle |
THS | Transmission Hydraulic Switch |
| HFC |
High Fan Control |
TID | Test Identification |
| HFC | Hydraulic Fading Compensation |
TIIS |
Thermal Imaging Inspection Station |
| HFCF |
High Speed Fan Control Fault |
TIM |
Tyre Inflation Module |
| HFM |
Hot Film Meter |
TIM | Tyre Inflation Monitor |
| HFP | High Fuel Pump |
TIS | Techline Information System |
| Hg |
Mercury |
TOC | Transmission Oil Cooler |
| Hi Alt |
Hi Altitude |
torq | Torque |
| HICAS |
High Capacity Actively Controlled Steering |
TOT | Transmission Oil Temperature |
| HID | High Intensity Discharge |
TP | Throttle Position |
| HIS |
Horizontal Impact Sensor |
TPA | Terminal Positive Assurance |
| hist |
History |
TPI | Tuned Port Injection |
| HLDT | Heavy Light-Duty Truck |
TPMS | Tyre Pressure Monitor System |
| HLOS | Hardware Limited Operating Strategy |
TPS | Throttle Position Sensor |
| HO | High Output |
TR | Transmission Range |
| HO2S | Heated Oxygen Sensor |
T-RAC |
Trailer Rotating Air Chamber |
| hp | Horsepower | trans | Transmission/Transaxle |
| HPDI |
High Pressure Direct Injection |
TRDU | Trailer Remote Diagnostic Unit |
| HPL | High Pressure Liquid |
TRS | Transmission Range Sensor |
| HPP | High Pressure Pump |
TSA | Thorax Side Airbag |
| HPS |
Head Protection System |
TSB | Technical Service Bulletin |
| HPS | High Performance System |
TSI | Two Speed Idle |
| HPV |
High Pressure Vapour |
TSS | Transmission Speed Sensor |
| HPVS |
Heat Pump Ventilation System |
TSS | Turbine Shaft Speed |
| HRC | Headlamp Range Control |
TT | Telltale Lamp |
| HSA |
Head Side Airbag |
TTM | Tilt and Telescope Module |
| HSC |
High Swirl Combustion |
TTS | Transmission Temperature Switch (replaced with TOT) |
| HSCDS |
High-Sensitivity Collision Detection System |
TV | Television |
| HSDI | High-Speed Direct Injection |
TV | Throttle Valve |
| HSE |
High-Speed Enrichment |
TVAM |
Televison Antenna Module |
| HSEA |
High Solar Energy Absorbing (glass) |
TVR | Turbine Vane Regulator |
| HTCM | Heating-ventilation-air-conditioning Thermal Control Module |
TVRS |
Television and Radio Suppression |
| HTR11 |
Bank 1 Upstream 02S Heater Control |
TVS |
Thermal Vacuum Switch |
| HTR11F |
Bank 1 Upstream 02S Heater Circuit Fault |
TVV | Thermal Vacuum Valve |
| HTR12 |
Bank 1 Downstream O2S Heater Control |
TWC |
Three Way Catalyst |
| HTR12F |
Bank 1 Downstream O2S Heater Circuit Fault |
TWC+OC |
Three Way Catalyst + Oxidation Catalyst |
| HTR21 |
Bank 2 Upstream O2S Heater Control |
twtr |
Tweeter |
| HTR21F |
Bank 1 Downstream O2S Heater Circuit Fault |
TXV | Thermal Expansion Valve |
| HTR22 |
Bank 2 Downstream 02S Heater Control |
UASID | Units And Scaling Identification |
| HTR22F |
Bank 1 Downstream O2S Heater Circuit Fault |
UART | Universal Asynchronous Receiver-Transmitter |
| HTRX1 | 02S Upstream Heater Control |
UD | Underdrive |
| HTRX2 | O2S Downstream Heater Control |
UDDS | Urban Dynamometer Driving Schedule |
| HUD | Heads Up Display |
U/H |
Underhood |
| HUD | Heads Up Display |
U/HEC |
Underhood Electrical Center |
| HVAC | Heater-Vent-Air Conditioning |
UIDI | Up-Integrated Direct Ignition |
| HVACM |
Heater-Vent-Air Conditioning Module |
ULEV | Ultra Low Emissions Vehicle |
| HVI |
High Viscosity Index |
ULSD | Ultra Low Sulphur Diesel |
| HVIL |
High Voltage Interlock Loop |
UMTS | Universal Mobile Telecommunications System |
| HVM |
Heater Vent Mondule |
unlk | Unlock |
| HW |
Heated Windshield |
USCAR | United States Council for Automotive Research |
| HWFET |
Highway Fuel Economy Test (driving schedule) |
UTD | Universal Theft Deterrent |
| HYPAS |
Hydraulic Power Assisted Steering |
UTQG | Uniform Tyre Quality Grading |
| Hz |
Hertz | V |
Volts |
| IA |
Intake Air |
V2G |
Vehicle to Grid |
| IABM | Integrated AirBag Module |
VAC | Vacuum |
| IAC | Idle Air Control |
VAC |
Vehicle Access Code |
| IAFM |
Integrated Air Fuel Module |
VACS |
Vehicle Access Control System |
| IAFS | Integrated Air Fuel System |
VAF | Vane Air Flow |
| IAT | Intake Air Temperature |
VAF | Volume Air Flow |
| iATN | International Automotive Technicians Network |
VAPS | Variable Assist Power Steering |
| IBOB |
Intelligent BreakOut Box |
VAPS | Virtual Automotive Prototyping System |
| IC |
Ignition Control |
VASCO | Vehicle Application-Specific Computer |
| IC |
Integrated Circuit |
VAT |
Vane Air Temperature (replaced with IAT) |
| ICA | Injector Cam Actuation |
VAT | Visual Authoring Tool |
| ICC | Intelligent Cruise Control |
VATS | Vehicle AntiTheft System |
| ICCS |
Integrated Chassis Control System |
VB |
Valve body |
| ICDX |
Integrated Compact Disc Changer |
VCC | Viscous Converter Clutch |
| ICE | Internal Combustion Engine |
VCI |
Vehicle Communication Interface |
| ICM |
Ignition Control Module |
VCIM | Vehicle Communication Interface Mode |
| ICP |
Injection Control Pressure |
VCL | Vehicle Communication Link |
| ICS | Integrated Chassis System |
VCM | Variable Cylinder Management |
| ICWS | Intersection Collision Warning System |
VCM |
Vehicle Communication Module |
| ID | Identification |
VCM |
Vehicle Control Module |
| ID |
Inside Diameter |
VCRM | Variable Control Relay Module |
| IDI | Integrated Direct Ignition |
VCT | Variable Camshaft Timing |
| IDIS |
International Dismantling Information System |
VDCS |
Vehicle Dynamics Control System |
| IDM |
Ignition Diagnostic Module |
V dif |
Voltage Difference |
| IDM | Injector Driver Module |
VDIS | Vehicle Diagnostic Information System |
| IDS | Integrated Diagnostic Software |
VDM |
Vehicle Dynamics Module |
| IEDIS | Integrated Electronic Distributorless Ignition System |
VDM |
Vehicle Dynamics Monitor |
| IFES | Integrated Front End System |
VDOT |
Variable Displacement Orifice Tube |
| IFI | Indirect Diesel Injection |
VDP | Vehicle Dynamics Processor |
| IFS |
Inertia Fuel Shutoff |
VDR | Vehicle Data Recorder |
| IFSM |
Integrated Fuel System Module |
VDR | Vehicle Dealer Recorder |
| IGN | Ignition |
VDS | Valve Deactivation System |
| ILC |
Idle Load Compensator |
VDV | Vacuum Delay Valve |
| ILEV |
Inherently Low Emission Vehicle |
VECI | Vehicle Emission Control Information |
| illum | Illumination |
VEDR | Vehicle Event Data Recorder |
| I/M |
Inspection Maintenance |
veh | Vehicle |
| IMA |
Integrated Motor Assist |
vel | Velocity |
| IMDX |
Integrated Mini Disc Changer |
ver | Version |
| IMLUT |
Inspection/Maintenance Look-Up Table |
vert | Vertical |
| immo | Immobilizer | VES | Variable Effort Steering |
| IMPR | In-use Monitor Performance Ratio |
VF | Vacuum Flourescent |
| IMRC | Intake Manifold Runner Control |
VGT | Variable Geometry Turbocharger |
| IMRC F |
Intake Manifold Runner Control Fault YES/NO |
VIC | Virtual Image Cluster module |
| IMRCM | Intake Manifold Runner Control Monitor Input Bank 1 VOLTS |
VICS |
Vehicle Information Communication System |
| IMRCM2 | Intake Manifold Runner Control Monitor Input Bank 2 VOLTS |
VIIC | Vehicle Infrastructure Integration Consortium |
| IMS | Inductive Magnetic Saturation |
VIN | Vehicle Identification Number |
| IMS |
Instant Mobility System |
VIP | Vehicle Intrusion Protection |
| IMS |
(2002 Cadillac Deville) Internal Mode Switch |
VIU | Vehicle Interface Unit |
| IMSC |
Intake Manifold Swirl Control |
VLCM |
Variable Load Control Module |
| IMSC F |
Intake Manifold Swirl Control Fault |
VLR |
Voltage Loop Reserve |
| IMT |
Intake Manifold Tuning |
vlv | Valve |
| IMTD | Intake Manifold Temperature Differential |
VMM |
Vehicle Measurement Module |
| IMTV | Intake Manifold Tuning Valve Control % |
VMRS | Vehicle Maintenance Reporting System |
| IMTVF |
Intake Manifold Tuning Valve Fault |
VMV | Vacuum Modulator Valve |
| in |
Inch(es) |
VMV | Vapour Management Valve |
| inadv |
Inadvertant | VNT |
Variable Nozzle Turbine |
| inc |
Increment |
VNT | Variable Nozzle Turbocharger |
| INCA |
In-Car Aquisition |
VOTM |
Vacuum Operated Throttle Modulator |
| incand |
Incandescent |
VPWR |
Vehicle Power |
| infl | Inflatable | VR | Vacuum Regulator |
| init | Initial |
VREF |
Voltage Reference |
| INJ | Injection | VRLA | Valve Regulated Lead Acid |
| INJ |
Injector | VRV | Vacuum Reducer Valve |
| INJ1F-8F |
Fuel Injector Primary Fault Cylinders 1 thru 8 |
VRIS | Variable Resonance Induction System |
| INJ9F-lOF |
Fuel Injector Primary Fault Cylinders 9 and 10 |
VS | Variable Speed |
| INP | Input | VSC |
Vehicle Stability Control |
| inst |
Instant | VSES | Vehicle Stability Enhancement System |
| int | Interior |
vspd | Vehicle speed |
| INT | Integrator (replaced with ST FUEL TRIM) |
VSS | Vehicle Speed Sensor |
| I/O |
In/Out |
VSV |
Vacuum Solenoid Valve |
| IOC |
Instant Oil Change |
VTA | Vehicle Theft Alarm |
| I/P |
Instrument Panel |
VTD |
Vehicle Theft Deterrent |
| IPC |
Instrument Panel Cluster |
VTEC | Variable (valve) Timing (and lift) Electronic Control |
| IPEC |
Instrument Panel Electrical Center |
VTSS | Vehicle Theft Security System |
| IPM | Instrument Panel Module |
VVT-i |
Variable Valve Timing with Intelligence |
| IPM | Integrated Power Module |
VVTL-i |
Variable Valve Timing and Lift with Intelligence |
| IPR |
Injector Pressure Regulator |
w/ |
With |
| IRDS |
Independant Rear Drive Suspension |
WAC |
Wide Open Throttle A/C Cutoff |
| IRQ |
Interrupt Request |
warn | Warning |
| IRS |
Independant Rear Suspension |
W/B |
Wheelbase |
| ISA |
Integrated Starter-Alternator |
WCF | Wireless Communication Framework |
| ISAD |
Integrated Starter Alternator Damper |
WDS |
Workbay Diagnostic System |
| ISB | Interact System B |
WDS | Worldwide Diagnostic System |
| ISC |
Idle Speed Control |
WGC |
Wastegate Control |
| ISG |
Integrated Starter-Generator |
WHL | Wheel |
| ISI | Ion Sensing Ignition |
WIF |
Water In Fuel (sensor) |
| ISO |
Interior Systems Optimization |
w/o |
Without |
| ISO | International Organisation for Standardisation |
WOT |
Wide Open Throttle |
| iso |
Isolation |
W/P |
Water Pump |
| ISS | Input Shaft Speed |
WSM |
WorkShop Manual |
| ITARDA | Institute for Traffic Acccident Research and Data Analysis |
WSS | Wheel Speed Sensor |
| ITTB |
Idle Time To Boil |
WU-OC |
Warmup Catalyst with Oxidation Catalyst |
| ITTR |
Inflatable Tubular Torso Restraint |
WU-TWC |
Warmup Catalyst with Three Way Catalyst |
| ITS |
Idle Tracking Switch |
WVO |
Waste Vegetable Oil |
| IVC | Integral Vapour Canister |
WVVWS |
Wireless Vehicle to Vehicle Warning System |
| IVCS | Integrated Vehicle Control System |
X-valve |
Expansion Valve |
| IVI |
Intelligent Vehicle Initiative |
xVDS | Extended Vehicle Diagnostic System |
| IVIS | In Vehicle Information System |
ZEV |
Zero Emission Vehicle |
| IVMS |
In Vehicle Monitoring System |
||
| IVS |
Idle Validation Switch |
||
| IVSC |
Integrated Vehicle Speed Control |
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| i-VTEC |
Intelligent Variable (valve) Timing (and lift) Electronic Control |
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| IWC | Inertia Weight Class |
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| JARI | Japan Automotive Research Institute |
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| JTEC | Jeep, Truck Engine Control |
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| JTEC | Joint Transmission-Engine Controller |
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