Abbreviations and Symbols

Abbreviations And Symbols

A Amperes
AAP Ambient Air Pressure
AAT Ambient Air Temperature
ABDC After Bottom Dead Centre
ABS Anti-Lock Brake System
ABS/TC Anti-lock Brake System/Traction Control
ac Alternating current
A/C Air Conditioning
ACE Active Cornering Enhancement
ACEA Association of Constructors of European Automobiles
AFR Air Fuel Ratio
AP Ambient Pressure
APP Accelerator Pedal Position
ASC Anti-shunt Control
ATC Air Temperature Control
ATDC After Top Dead Centre
AUX Auxiliary
AVC Automatic Volume Control
BBDC Before Bottom Dead Centre
BBUS Battery Backed Up Sounder
BCU Body Control Unit
BDC Bottom Dead Centre
bhp Brake Horse Power
BP Boost Pressure
BPP Brake Pedal Position
BS British Standard
BTDC Before Top Dead Centre
BWD Backward
C Celsius
CAN Controller Area Network
CD Compact Disc
CDC Centre Differential Control
CDL Central Door Locking
CD - ROM Compact Disc - Read Only Memory
CFC Chlorofluorocarbon
CHMSL Centre High Mounted Stop Lamp
CKP Crankshaft Position
CLV Calculated Load Value
cm Centimetre
cm2 Square centimetre
cm3 Cubic centimetre
CMP Camshaft Position
CPP Clutch Pedal Position
CO Carbon Monoxide
CO2 Carbon Dioxide
COB Clear Over Base
CR Common Rail
CVS Canister Vent Solenoid
dB Decibels
DDM Driver's Door Module
deg. Degree angle or temperature
DI Direct Injection
dia. Diameter
DIN Deutsche Industrie Normen
(German Industrial Standards)
dc Direct current
DCV Directional Control Valve
DOHC Double Overhead Camshaft
DSP Digital Signal Processing
DTI Dial Test Indicator
DMF Dual Mass Flywheel
DVD Digital Versatile Disc
EACV Electronic Air Control Valve
EAT Electronic Automatic Transmission
EBD Electronic Brake pressure Distribution
ECD European Community Directive
ECM Engine Control Module
ECT Engine Coolant Temperature
ECU Electronic Control Unit
EDC Electronic Diesel Control
EEPROM Electronic Erasable Programmable Head Only Memory
EGR Exhaust Gas Recirculation
EKA Emergency Key Access
ELH Emergency Locking Retractor
EN European Norm
EOBD European On Board Diagnostics
EON Enhanced Other Network
ERL Electrical Reference Library
ETC Electronic Traction Control
EUI Electronic Unit Injector
EVAP Evaporative Emission
EVR Electronic Vacuum Regulator
F Fahrenheit
ft. Feet
FBH Fuel Burning Heater
FET Field Effect Transistor
FIR Fuel Injection Pump
FTC Fast Throttle Control
FWD Forward
> Greater than
g Gramme or Gravity
gal. Gallons
GMT Greenwich Mean Time
GPS Global Positioning System
h. Hour
hc High compression
HC Hydro Carbons
HDC2 Hill Descent Control
HDOP Height Dilation Of Precision
HDPE High Density Polyethylene
HFS Heated Front Screen
Hg Mercury
HO2S Heated Oxygen Sensor
HMW High Molecular Weight
HRW Heated Rear Window
HSLA High Strength Low Alloy
ht/HT High tension
IACV Idle Air Control Valve
IAT Intake Air Temperature
ICE In-Car Entertainment
i.dia. Internal diameter
IDM Intelligent Driver Module
IF Intermediate Frequency
in Inch
in3 Cubic inch
ILT Inlet Throttle
IPW Injector Pulse Width
ISO International Organisation for Standardisation
ITS Inflatable Tubular Structure
k Thousand
kg Kilogramme
kg/h Kilogrammes per hour
km Kilometre
km/h kilometres per hour
kPa KiloPascal
KS Knock Sensor
< Less than
l Litre
lb(s) Pounds
lbf Pounds force
lbf.in Pounds force inches
lbf/in2 Pounds per square inch
lbf.ft Pounds force feet
Lambda
Ic Low compression
LCD Liquid Crystal Display
LCM Light Control Module
LED Light Emitting Diode
LEV Low Emission Vehicle
LH Left-Hand
LHD Left-Hand Drive
LSM Light Switch Module
LVS Liquid Vapour Separator
m Metre
Micro
MAF Mass Air Flow
MAP Manifold Absolute Pressure
MET Mechanical Electrical and Trim
MFD Multi-Function Display
MFU Multi-Function Unit
MFL Multi-Function Logic
max. Maximum
MEMS Modular Engine Management System
MID Multi-Information Display
MIG Metal/Inert Gas
MIL Malfunction Indicator Lamp
MPa MegaPascal
MOSFET Metal Oxide Semiconductor Field Effect Transistor
min. Minimum
- Minus (tolerance)
' Minute (angle)
mm Millimetre
mph Miles per hour
MPi Multi-Point injection
MV Motorised Valve
MY Model Year
NAS North American Specification
(-) Negative (electrical)
Nm Newton metre
No. Number
NO2 Nitrogen Dioxide
NOx Oxides of Nitrogen
NTC Negative Temperature Coefficient
NRV Non Return Valve
OBD On Board Diagnostics
OBM On Board Monitoring
o.dia Outside diameter
OAT Organic Acid Technology
ORM Off-road Mode
Ohm
PAS Power Assisted Steering
PCB Printed Circuit Board
PCV Positive Crankcase Ventilation
PDC Parking Distance Control
PDOP Position Dilation Of Precision
PI Programme Information
PPS Pulse Per Second
PS Programme Service
psi Pounds per square inch
pts. Pints
% Percentage
+ Plus (tolerance) or Positive (electrical)
± Plus or minus (tolerance)
PTC Positive Temperature Coefficient
PTFE Polytetraflucrethylene
PVC Polyvinyl chloride
PWM Pulse Width Modulation
RDS Radio Data Service
r. Radius
: Ratio
ref Reference
REG Regionalisation
rev/mm Revolutions per minute
RF Radio Frequency
RGB Red/Green/Blue
RH Right-Hand
RHD Right-Hand Drive
ROM Read Only Memory
RON Research Octane Number
ROV Roll Over Valve
ROW Rest Of World
SAE Society of Automotive Engineers
SAI Secondary Air Injection
" Second (angle)
SLABS Self Levelling and Anti-Lock Brake System
SLS Self Levelling Suspension
SOHC Single Overhead Camshaft
SPE Single Point Entry
sp.gr Specific gravity
SRO Service Repair Operation
SRS Supplementary Restraint System
std. Standard
synchro Synchronizer or synchromesh
TA Traffic Announcement
TDC Top Dead Centre
TMAP Temperature Manifold Absolute Pressure
IMO Traffic Management Channel
TP Throttle Position
TP Throttle Position
TV Torsional Vibration
TWC Three-way Catalyst
TXV Thermostatic Expansion Valve
UK United Kingdom
US United States
US galls/h US gallons per hour
V Volt
Var. Variable
VDOP Velocity Dilation Of Precision
VICS Vehicle Information Communications System
VIN Vehicle Identification Number
VIS Variable Intake System
VRS Variable Reluctance Sensor
VSS Vehicle Speed Signal
VCC Variable Camshaft Control
W Watt
WOT Wide Open Throttle