Abbreviations

List of automotive abbreviations which may be used in shop manual.

ABS | Anti-lock Brake System
A/C | Air Conditioning, Air Conditioner
ACC | Adaptive Cruise Control
ACEA | Association des Constructers Europeens d'Automobiles
ACL | Air Cleaner
A/F | Air Fuel Ratio
ALR | Automatic Locking Retractor
ALT | Alternator
AMP | Ampere(s)
ANT | Antenna
API | American Petroleum Institute
APP | Accelerator Pedal Position
APPROX. | Approximately
ASSY | Assembly
A/T | Automatic Transmission
ATDC | After Top Dead Center
ATF | Automatic Transmission Fluid
ATT | Attachment
AUTO | Automatic
AUX | Auxiliary
BARO | Barometric
BAT | Battery
BDC | Bottom Dead Center
BTDC | Before Top Dead Center
CARB | Carburetor
CAT or CATA | Catalytic Converter
CD | Compact Disc
CHG | Charge
CKF | Crankshaft Speed Fluctuation
CKP | Crankshaft Position
CLV | Calculated Load Value
CMP | Camshaft Position
CO | Carbon Monoxide
COMP | Complete
CPB | Clutch Pressure Back up
CPC | Clutch Pressure Control
CPU | Central Processing Unit
CVT | Continuously Variable Transmission
CVTF | Continuously Variable Transmission Fluid
CYL | Cylinder
CYP | Cylinder Position
DIFF | Differential
DLC | Data Link Connector
DOHC | Double Overhead Camshaft
DOT | Department of Transportation
DPF | Diesel Particulate Filter
DPI | Dual Point Injection
DPSF | Dual Pump System Fluid
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
ETCS | Electrical Throttle Control System
EVAP | Evaporative Emission
EX | Exhaust
F | Front
FIA | Fuel Injection Air
FL | Front Left
FP | Fuel Pump
FR | Front Right
FRP | Fuel Rail Pressure
FSR | Fail Safe Relay
FWD | Front Wheel Drive
GAL | Gallon
GND | Ground
GPS | Global Positioning System
H/B | Hatchback
HBA | Hydraulic Brake Assist
HC | Hydrocarbons
HDS | Honda Diagnostic System
HID | High Intensity Discharge
HO2S | Heated Oxygen Sensor
HVAC | Heating, Ventilation and Air Conditioning
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
i-DSI | Intelligent-Dual & Sequential Ignition
IG or IGN | Ignition
IMA | Idle Mixture Adjustment
Integrated Motor Assisted
IMMOBI. | Immobilizer (Immobiliser)
IMRC | Intake Manifold Runner Control
IN | Intake
INJ | Injection
INT | Intermittent
IQA | Injector Quantity Adjustment (Diesel model)
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
LKAS | Lane Keep Assist System
LR | Left Rear
LSD | Limited Slip Differential
L4 | In-line Four Cylinder (engine)
MAF | Mass Air Flow
MAP | Manifold Absolute Pressure
MAX. | Maximum
MBS | Mainshaft Brake System
MCK | Motor Check
MCU | Moment Control Unit
MICS | Multiplex Integrated Control System
MICU | Multiplex Integrated Control Unit
MIL | Malfunction Indicator Lamp
MIN. | Minimum
MPI | Multi Point Injection
MTF | Manual Transmission Fluid
M/S | Manual Steering
M/T | Manual Transmission
NOx | Oxides of Nitrogen
OBD | On-board Diagnostic
O2S | Oxygen Sensor
OD or O.D. | Outside Diameter
OPDS | Occupant Position Detection System
PAIR | Pulsed Secondary Air Injection
PCM | Powertrain Control Module
PCV | Positive Crankcase Ventilation
Proportioning Control Valve
PDU | Power Drive Unit
PGM-FI | Programmed-fuel Injection
PGM-IG | Programmed Ignition
PH | Pressure High
PL | Pilot Light or Pressure Low
PMR | Pump Motor Relay
P/N | Part Number
PRI | Primary
P/S | Power Steering
PSF | Power Steering Fluid
PSP | Power Steering Pressure
PSW | Pressure Switch
Qty | Quantity
R | Right
REF | Reference
RH | Right Handle
RHD | Right Handle Drive
RL | Rear Left
RON | Research Octane Number
RR | Rear Right
SAE | Society of Automotive Engineers
SCS | Service Check Signal
SEC | Second, Secondary
SOHC | Single Overhead Camshaft
SOL | Solenoid
SPEC | Specification
S/R | Sun Roof
SRS | Supplemental Restraint System
STD | Standard
SW | Switch
T | Torque
TB | Throttle Body
T/B | Timing Belt
TC | Torque Converter
TCM | Transmission Control Module
TCS | Traction Control System
TDC | Top Dead Center
TFT | Thin Film Transistor
T/N | Tool Number
TP | Throttle Position
TWC | Three Way Catalytic Converter
VC | Viscous Coupling
VIN | Vehicle Identification Number
VSS | Vehicle Speed Sensor
VTEC | Variable Valve Timing & Valve Lift Electronic Control
VVIS | Variable Volume Intake System
V6 | V-engine Six Cylinder (engine)
W | With
W/O | Without
WOT | Wide Open Throttle
2WD | Two Wheel Drive
4WD | Four Wheel Drive
4AT | 4-speed Automatic Transmission
5AT | 5-speed Automatic Transmission
5MT | 5-speed Manual Transmission
6MT | 6-speed Manual Transmission
P | Park
R | Reverse
N | Neutral
D4 | Drive (1st through 4th gear)
D3 | Drive (1st through 3rd gear)
D | Drive
M | Manual mode
S | Second
L | Low
O/D | Over Drive
1ST | Low (gear)
2ND | Second (gear)
3RD | Third (gear)
4TH | Fourth (gear)
5TH | Fifth (gear)
6TH | Sixth (gear)