General Information



List of automotive abbreviations, which may be used in shop manual.
ABS Anti-lock Brake System
A/C Air Conditioning, Air Conditioner
ACL Air Cleaner
A/F Air Fuel Ratio
ALR Automatic Locking Retractor
ALT Alternator
AMP Ampere(s)
ANT Antenna
API American Petroleum Institute
APPROX. Approximately
ASSY Assembly
A/T Automatic Transmission
ATDC After Top Dead Centre
ATF Automatic Transmission Fluid
ATT Attachment
ATTS Active Torque Transfer System
AUTO Automatic
AUX Auxiliary
BARO Barometric
BAT Battery
BDC Bottom Dead Centre
BTDC Before Top Dead Centre
CARB Carburettor
CAT Catalytic Converter
or CATA  
CHG Charge
CKF Crankshaft Speed Fluctuation
CKP Crankshaft Position
CO Carbon Monoxide
COMP Complete
CPB Clutch Pressure Back up
CPC Clutch Pressure Control
CPU Central Processing Unit
CVT Continuously Variable Transmission
CYL Cylinder
CYP Cylinder Position
DI Distributor Ignition
DIFF Differential
DLC Data Link Connector
DOHC Double Overhead Camshaft
DPI Dual Point Injection
DTC Diagnostic Trouble Code
EBD Electronic Brake Distribution
ECM Engine Control Module
ECT Engine Coolant Temperature
EGR Exhaust Gas Recirculation
ELD Electrical Load Detector

EPR Evaporator Pressure Regulator
EPS Electrical Power Steering
EVAP Evaporative
EX Exhaust
F Front
FIA Fuel Injection Air
FL Front Left
FP Fuel Pump
FR Front Right
FSR Fail Safe Relay
FWD Front Wheel Drive
GAL Gallon
GND Ground
GPS Global Positioning System
H/B Hatchback
HC Hydrocarbons
HID High Intensity Discharge
HO2S Heated Oxygen Sensor
IAB Intake Air Bypass
IAC Idle Air Control
IACV Idle Air Control Valve
IAR Intake Air Resonator
IAT Intake Air Temperature
ICM Ignition Control Module
ID Identification
ID or I.D. Inside Diameter
IG or IGN Ignition
IMA Idle Mixture Adjustment

Integrated Motor Assist

IMMOBI. Immobiliser (Immobiliser)
IN Intake
INJ Injection
INT Intermittent
KS Knock Sensor
L Left
L/C Lock-up Clutch
LCD Liquid Crystal Display
LED Light Emitting Diode
LEV Low Emission Vehicle
LF Left Front
LH Left Handle
LHD Left Handle Drive
LR Left Rear
LSD Limited Slip Differential
L-4 In-line Four Cylinder (engine)